.Net Runtime Error

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 - Problem with serializing multiple collections with a base class I have the following code. When I serialize the DriverCollection I would like to get both the Driver Collection and the DeletedItems collection. I end up with only the Driver collection. I have tried numerous attributes with no success. Any help would be appreciated... using System; using System.IO; using System.Text; using System.Xml; using System.Xml.Serialization; using System.Runtime.Serialization; using System.Runtime.Serialization.Formatters.Binary; using System.Collections; namespace SerialTest { #region BusinessObjectBase /// Summary description for BusinessObjectBase. /// </summary> [Serializable()] public abstract class BusinessObjectBase { public BusinessObjectBase() {} } #endregion //BusinessObjectBase #region BusinessObjectCollectionBase /// <summary> /// Summary description for BusinessObjectCollectionBase. /// </summary> [Serializable()] public class BusinessObjectCollectionBase : CollectionBase { public DeletedItemCollection _deletedItems = new DeletedItemCollection(); public BusinessObjectCollectionBase() {} public DeletedItemCollection DeletedItems { get{return _deletedItems;} set{_deletedItems = value;} } } #endregion //BusinessObjectCollectionBase #region DeletedItemCollection /// <summary> /// Summary description for BusinessObjectCollectionBase. /// </summary> [Serializable()] public class DeletedItemCollection : CollectionBase { #region Constructors public DeletedItemCollection() {} #endregion public BusinessObjectBase this[int index] { get{return (BusinessObjectBase)List[index];} set{List[index] = value;} } public int Add(BusinessObjectBase value) { return List.Add(value); } } #endregion //DeletedItemCollection #region DriverCollection /// <summary> /// Summary description for DriverCollection. /// </summary> [Serializable()] public class DriverCollection : BusinessObjectCollectionBase { #region Constructors public DriverCollection() {} #endregion #region IListMethods public Driver this[int index] { get{return (Driver)List[index];} set{List[index] = value;} } public int Add(Driver value) { return List.Add(value); } public bool Contains(Driver value) { return List.Contains(value); } public bool Contains(int driverNumber) { Driver d = GetDriver(driverNumber); return d == null ? false : Contains(d); } public bool ContainsDeleted(int driverNumber) { foreach(BusinessObjectBase bob in _deletedItems) { Driver d = (Driver)bob; if(d.Number == driverNumber) return true; } return false; } public int IndexOf(Driver value) { return List.IndexOf(value); } public int IndexOf(int driverNumber) { Driver d = GetDriver(driverNumber); return d == null ? -1 : IndexOf(d); } public void Remove(Driver value) { List.Remove(value); } public Driver GetDriver(int driverNumber) { for(int i = 0; i < this.Count; i++) if(this[i].Number == driverNumber) return this[i]; return null; } public void DeleteDriver(int driverNumber) { Driver d = GetDriver(driverNumber); Remove(d); _deletedItems.Add(d); } #endregion } #endregion //DriverCollection #region Driver /// <summary> /// Summary description for Driver. /// </summary> [Serializable()] public class Driver : BusinessObjectBase { #region Constructors public Driver() { } #endregion #region Number int _number = 0; public int Number { get{return _number;} set { if(value != _number) { _number = value; } } } #endregion } #endregion //Driver /// <summary> /// Summary description for Class1. /// </summary> class Tester { /// <summary> /// The main entry point for the application. /// </summary> [STAThread] static void Main(string[] args) { DriverCollection drivers = new DriverCollection(); Driver driver1 = new Driver(); Driver driver2 = new Driver(); Driver driver3 = new Driver(); Driver driver4 = new Driver(); driver1.Number = 1; drivers.Add(driver1); driver2.Number = 2; drivers.Add(driver2); driver3.Number = 3; drivers.Add(driver3); driver4.Number = 4; drivers.Add(driver4); drivers.DeleteDriver(2); drivers.DeleteDriver(3); //**************************** // XML serialization //**************************** // Creat a Serializer try { XmlSerializer serializer = new XmlSerializer(typeof(DriverCollection)); // Create an XmlTextWriter using a FileStream. Stream fs = new FileStream(@"C:\NewPolicy.xml", FileMode.Create); XmlWriter writer = new XmlTextWriter(fs, Encoding.Unicode); // Serialize using the XmlTextWriter. serializer.Serialize(writer, drivers); writer.Close(); } catch (System.Exception e) { throw e; //Handle exception here } } } } -- Gonzo Tag: .Net Runtime Error Tag: 102594
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 - Desktop Icon I have C# project with an associated deployment project, which creates a Desktop shortcut. The icon on the shortcut is some plain-vanilla document, not the app's icon. Where does one tell the project what icon to use, or why isn't it picking up the app's icon? The app itself shows the correct icon. Ken Tag: .Net Runtime Error Tag: 102592
 - 3
 - How to run vsvars32.bat to make its changes persistent? Hi All, I opened a Command window and changed its directory to one that contained a HelloWorld.cs program. I ran "csc HelloWorld.cs" and got: 'csc' is not recognized as an internal or external command, operable program or batch file. I ran "vsvars32" and got: Setting environment for using Microsoft Visual Studio .NET tools. [snip] (which worked because I had previously amended PATH to include "[snip]\Microsoft Visual Studio .NET\Common7\Tools") Of course, if I opened another Command window, "csc HelloWorld.cs" would again give rise to the "'csc' is not recognized" message because the changes made to the environment variables in the first window were made only to the session in which that window was created. I thought if I ran "vsvars32" in Start | Run the changes would be persistent, but that has proven not the case. I used vcvars32 in the Win2000Pro environment with no problems. What is going on here? TIA, Richard Tag: .Net Runtime Error Tag: 102588
 - 4
 - Is there a way to force the precision of a decimal variable? If I have a decimal value, say foo: decimal foo = 3; when I serialize that decimal value to XML, I'll get an element like this: <foo>3</foo> If I have a value like: decimal foo=3.00M; serializing to XML produces: <foo>3.00</foo> My problem is that if I have a textbox and a user types in a value of "3", I need to parse it into a decimal variable and end up with 3.00. (Alternately, if there was a way to tell XML serialization to output "3" as "3.00", that'd be fine but there doesn't appear to be any way to do that.) Is there a way to force the precision of a parsed decimal value? Thanks, Doug Harber Tag: .Net Runtime Error Tag: 102582
 - 5
 - when writing out a file from .net, when is the file created? after the bytes are all written to the hard drive or before the bytes are written to the hard drive? when writing out a file from .net, when is the file created? after the bytes are all written to the hard drive or before the bytes are written to the hard drive? Tag: .Net Runtime Error Tag: 102579
 - 6
 - Is there any way for System.IO.StreamWriter Write method to write out part of the string to file. such as if the machine is shut down half way through? or does the file not actually exist until the entire write is completed successfully. Is there any way for System.IO.StreamWriter Write method to write out part of the string to file. such as if the machine is shut down half way through? or does the file not actually exist until the entire write is completed successfully. Tag: .Net Runtime Error Tag: 102578
 - 7
 - Best way to study for the MCSD C# .NET Exam It seems that the official book and course for the 70-316 MCSD exam is covering far fewer details than are required to pass the MeasureUp pre-test. Is this really true, and what can I do about it? How can I best fill in all the required details that the MeasureUp pre-test for MCSD 70-316 requires? Does the MeasureUp pre-test cover far more details than the actual MCSD 70-316 exam? Thanks, Peter Olcott Tag: .Net Runtime Error Tag: 102577
 - 8
 - Dynamic Data binding Hi, I am looking for some quick advice on the methods I'm investigating.. I have a portion of my program that allows a user to import address data from either an excel sheet, acess db, or a delimited file. What I need to do is set up their data in a specific format that we use without needing to inform the client ahead of time. For instance we need the full name in a column called "Name", but the customer's file might have a Last Name column and a Full Name column. What I'm trying out is to fill a dataset with their data, and pop up a screen that has 2 data grids(one that specifies what it should be, and one with the actual data) and a bunch of check boxes. While the "Name" column in the ShouldBe table is highlighted, they select a column in their data and then click the checkbx that describes their data. For instance name is highlighted and they click the last name column in their data and check the last name check box and the same for first, then click the next button. This is supposed to bind the checkbox title with the column heads so I can concatenate them into the proper column. It is then supposed to move the highlighted cell in the ShouldBe datagrid down one and allow them to proceed, until at the end I have a dataset that is in the proper format, despite its original format. I have figured out how to create a column of combined columns with ADO using the expression property but I'm still learning how to do the rest. If anyone can give me any advice, tell me a better or easier way to accomplish this and point me in a direction to learn how to do so, or simply say you're doing it the best way, I would really appreciate it.(sorry I'm a novice...my first job) Thanks! Paul Huff Tag: .Net Runtime Error Tag: 102574
 - 9
 - ORACLE STRING Hello: I have a web appliction and , I need to have the proper string to get a connection to an Oracle DB from Vb.Net 2003, using a .NET string. I need to know how to specify the password, login and the server in the string connection. In all the examples, I haven't seen where and how to specify this parameters, please help me with this matters. Thanks Gina Hernandez Tag: .Net Runtime Error Tag: 102565
 - 10
 - .Net Framework installation fails- error 2908. How do I resolve? I have been unable to install .Net Framework on a few of my machines (isolated PC's). I encounter "Error 2908" on the affected machines, and the following error log dump: Internal Error 2908. {7D4B5591-4C80-42BB-B0E5-F2C0CEE02C1A} Internal Error 2908. {9922FCCE-8CAF-4A22-AA39-DA835B6C608A} Internal Error 2908. {67A0ABEE-0FA1-461F-A1FF-0C3E59C8FC6D} Internal Error 2908. {FF766460-2F2B-4ADE-8E9B-781040797C80} Error 1935.An error occurred during the installation of assembly 'cscompmgd,Version="7.0.5000.0",PublicKeyToken="b03f5f7f11d50a3a",Culture="neutral",FileVersion="7.10.3052.4"'. Please refer to Help and Support for more information. HRESULT: 0x8002802F. assembly interface: , function: CreateAssemblyNameObject, component: {EB2A851A-66CC-4064-B8FA-B719D9F6D279} What I have tried thus far: 1) Clearing the TEMP directory 2) Installing as ADMIN 3) Running SysPrep to assign a new machine SID Still the error persists on the systems. If anyone has any resolution ideas I would greatly appreciate. Thank you! Tag: .Net Runtime Error Tag: 102564
 - 11
 - StackOverFlowException - Serialize collection I'm trying to serialize a Collection (PageHistoryStack) of objects (PageHistoryItem) and get a StackOverFlowException following is the Code: >> Collection: <Serializable()> Public Class PageHistoryStack Inherits System.Collections.CollectionBase #Region "Constructors" Public Sub New() End Sub #End Region #Region "Public Properties" Default Public Overridable Property Item(ByVal index As Integer) As PageHistoryItem Get Return DirectCast(Item(index), PageHistoryItem) End Get Set(ByVal value As PageHistoryItem) Item(index) = value End Set End Property #End Region #Region "Public Functions" 'Needed for the XMLSerialization Public Overridable Function Add(ByVal value As PageHistoryItem) As Integer Me.InnerList.Add(value) End Function >> Object: <Serializable()> Public Class PageHistoryItem #Region "Constructors" Public Sub New() End Sub Public Sub New(ByVal ContainerID As Integer, ByVal ProjectID As Integer, ByVal URL As String) mURL = URL mContainerId = ContainerID mProjectId = ProjectID End Sub #End Region #Region "Private Members" Private mURL As String Private mContainerId, mProjectId As Integer #End Region #Region "Public Properties" Public Property ContainerId() As Integer Get Return mContainerId End Get Set(ByVal value As Integer) mContainerId = value End Set End Property Public Property ProjectId() As Integer Get Return mProjectId End Get Set(ByVal value As Integer) mProjectId = value End Set End Property Public Property URL() As String Get Return mURL End Get Set(ByVal Value As String) mURL = Value End Set End Property #End Region End Class >> To run it Try Dim MyHistoryStack As New PageHistoryStack MyHistoryStack.Add(New PageHistoryItem(12, 1, "wbs.aspx")) MyHistoryStack.Add(New PageHistoryItem(12, 2, "wbs.aspx")) MyHistoryStack.Add(New PageHistoryItem(12, 3, "wbs.aspx")) MyHistoryStack.Add(New PageHistoryItem(12, 4, "wbs.aspx")) ' Create a new XmlSerializer instance. Dim s As New XmlSerializer(GetType(PageHistoryStack)) ' Writing the XML file to disk requires a TextWriter. Dim writer As New StreamWriter(Server.MapPath("lucky.xml")) ' Serialize the object, and close the StreamWriter. s.Serialize(writer, MyHistoryStack) writer.Close() Catch ex As Exception End Try Any help appreciated, Joss Tag: .Net Runtime Error Tag: 102562
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 - problem with threading & nested anonymous method This is a multi-part message in MIME format. ------=_NextPart_000_0044_01C5B34D.F2BA8190 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I have a very simple block of code with open a file in a thread and for the life of me I have no idea, wonder if it's a 2.0 beta bug? here is my sample (which open a file in a thread) =3D=3D=3D public void Open(string file) { Cursor =3D Cursors.WaitCursor; new Thread(delegate()=20 { RecipeFile rf =3D null; try { rf =3D new RecipeFile(file, false, SetStatus);// is = ThreadSafe, only independant data SetStatus(strings.done); // is ThreadSafe } catch (ArgumentException e) { SetStatus(e.Message);// is ThreadSafe } catch (SQLiteException e) { SetStatus(e.Message);// is ThreadSafe } finally { // error happened here in GUI thread: Cursor =3D = Cursors.Default; =3D>AccessViolationException this.BeginInvoke(new InvokeDelegate(delegate() { this.Cursor = =3D Cursors.Default; })); } if (IsDisposed) return; this.BeginInvoke(new InvokeDelegate(delegate() { RecipeFile =3D = rf; })); } ).Start(); } =3D=3D=3D=3D --=20 If you're in a war, instead of throwing a hand grenade at the enemy, = throw one of those small pumpkins. Maybe it'll make everyone think how = stupid war is, and while they are thinking, you can throw a real grenade = at them. Jack Handey. ------=_NextPart_000_0044_01C5B34D.F2BA8190 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=3DContent-Type content=3D"text/html; = charset=3Diso-8859-1"> <META content=3D"MSHTML 6.00.2900.2722" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY> <DIV>I have a very simple block of code with = open a file=20 in a thread</DIV> <DIV>and for the life of me I have no idea, = wonder if=20 it's a 2.0 beta bug?</DIV> <DIV> </DIV> <DIV>here is my sample (which open a file in = a=20 thread) =3D=3D=3D</DIV> <DIV> public = <FONT=20 color=3D#0000ff size=3D2>void Open(string file) <FONT=20 size=3D2>{     Cursor =3D Cursors.WaitCursor;     new Thread(delegate() =    =20 {         RecipeFile rf =3D null;         try <FONT=20 size=3D2>        {    =20         rf =3D new RecipeFile(file, false, SetStatus);//=20 is ThreadSafe, only independant=20 data          &nbs= p; =20 SetStatus(strings.done);=20 //=20 is ThreadSafe        &n= bsp;} <FONT=20 color=3D#0000ff size=3D2>        = catch<FONT=20 size=3D2> (ArgumentException=20 e)         {    =20         SetStatus(e.Message);<FONT=20 color=3D#ff0000>//=20 is ThreadSafe        =20 }     =    =20 catch (SQLiteException e)    =20     {         =    =20 SetStatus(e.Message);//=20 is ThreadSafe        =20 }     =    =20 finally         = { <FONT=20 color=3D#ff0000>            = // error=20 happened here in GUI thread: Cursor =3D Cursors.Default;=20 =3D>AccessViolationException           &nbs= p;=20 this.BeginInvoke(new InvokeDelegate(delegate() { this.Cursor =3D Cursors.Default; = }));    =20     }    =20     if (IsDisposed)         =    =20 return;         this<FONT=20 size=3D2>.BeginInvoke(new=20 InvokeDelegate<FONT=20 size=3D2>(delegate() {=20 RecipeFile = =3D rf;=20 }));     }    =20 ).Start(); } =3D=3D=3D=3D</DIV> <DIV> </DIV> <DIV> </DIV> <DIV> -- If you're in a war, instead = of throwing=20 a hand grenade at the enemy, throw one of those small pumpkins. Maybe = it'll make=20 everyone think how stupid war is, and while they are thinking, you can = throw a=20 real grenade at them. Jack Handey.</DIV></BODY></HTML> ------=_NextPart_000_0044_01C5B34D.F2BA8190-- Tag: .Net Runtime Error Tag: 102560
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 - how to shutdown Hi to all. I have a little problem. I need to shutdown, restart, or suspend the system. How should I do? Thanks a lot. Tag: .Net Runtime Error Tag: 102555
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 - Serialization error Hi. I have a class A with an attribute of type B that has an attribute that is a collection of type C. In B, the attribute that is a collection of C is marked with the NonSerialized attribute and in A, the attribute that is of type B is also marked with the NonSerialized attribute. class A { [NonSerialized] B b; } class B { [NonSerialized] C c; } class C : IEnumerable { ... public void Add(object o) {} } I save an object of type A with the Configuration Application Block of Enterprise Library, which tries to serialize the object. And there comes the error. The message says that the collection of type C should have an method Add because it inherits from IEnumerable. The collection has the method Add and should not be serialized once it is marked with NonSerialized attribute. If anyone can understand the problem, can you help me? Tag: .Net Runtime Error Tag: 102553
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 - Compiler optimization question just curiosity because I guess there isn't much I could do about it.... if I write byte[] buf = ...; int N = ...; for(int i=0; i<N; i++) do(buf[i]); will the code do a bound checking on the array on every single access to buf[i] or will it recognises that N, and buf.Length are constant and optimize to only one bounds checking? -- If you're in a war, instead of throwing a hand grenade at the enemy, throw one of those small pumpkins. Maybe it'll make everyone think how stupid war is, and while they are thinking, you can throw a real grenade at them. Jack Handey. Tag: .Net Runtime Error Tag: 102548
 - 16
 - Complex DataGrid Binding The question I have is how to -=> Effectively <=- and -=> Efficently <=- bind a DataGrid to a 1 deep organizational chart, where "R" would be a row of data and 1..N would be the columns of the row. I need to have the data displayed and updated/added, so I will need 2 way binding. +---+ | R | (View this in NotePad) +---+ | +-------+-------+-------+-------+ | | | | | +---+ +---+ +---+ +---+ +---+ | 1 | | 2 | | 3 | |...| | N | +---+ +---+ +---+ +---+ +---+ I am currently creating the columns of the DataGrid dynamically, which works fine. The binding is where I am getting stuck. A -=> Very <=- simplistic view of my data looks like this. +-----------------------------+ | MyRowCollection | +-----------------------------+ | Guid ID | | MyRowCollection rows | +-----------------------------+ | 1 | to | N +-----------------------------+ | MyRow | +-----------------------------+ | Guid ID | | MyColumnDataCollection data | +-----------------------------+ | 1 | to | N +------------------+ | MyColumnData | +------------------+ | Guid ID | | object data | +------------------+ Any thoughts would be appreciated. Dave Tag: .Net Runtime Error Tag: 102545
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 - Portals anyone? SharePoint vs DNN? I am at a current position to take an existing ASP system and bring it into VS200? ASP.NET Our new CIO wanted a comparison between SharePoint and DNN in a delivery method for our new content. My gut feeling is to go to DNN because it's Open Source. Flip side is to not go with SharePoint because it's M$. Anyone work with both who has a preference? Any great concepts that you found fantastic in either product? Any deal killers that couldn't be overcome in either? TIA __Stephen Tag: .Net Runtime Error Tag: 102544
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 - User defined Clipboard objects in other applications Hi, I am storing userdefined objects in the clipboard and I want them to be available for external applications (Notepad, Excel, Word, ...) How does my userdefined object have to look like to be usable in other applications? Do I have to implement a special named method or something like that? Best regards Christian Tag: .Net Runtime Error Tag: 102538
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 - deserialization problem (xmlns=''> was not expected) Hi, I am getting error "<DECISION_REQIEST xmlns=''> was not expected. excepiton: System.InvalidOperationException any clue: why getting error: input: <DECISION_REQUEST xmlns:po="http://www.cqds.com/CQDSWebservice" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" > <CQAuthentication Type="String"> <AccountName>Greenlight</AccountName> <UserName>greenlight1</UserName> <UserPassword>greenlight1</UserPassword> </CQAuthentication> <Guideline Id="388" ProductID="89" VersionId="259" RateSheetName=""/> </DECISION_REQUEST> class : Imports System.Xml.Serialization '<remarks/> <System.Xml.Serialization.XmlTypeAttribute([Namespace]:="http://www.cqds.com/CQDSWebservice"), _ System.Xml.Serialization.XmlRootAttribute("DECISION_REQUEST", [Namespace]:="http://www.cqds.com/CQDSWebservice", IsNullable:=False)> _ Public Class DECISION_REQUESTType '<remarks/> '<System.Xml.Serialization.XmlElementAttribute(Form:=System.Xml.Schema.XmlSchemaForm.Unqualified)> _ Public Guideline As DECISION_REQUESTTypeGuideline '<remarks/> '<System.Xml.Serialization.XmlAttributeAttribute()> _ Public Version As String End Class '<remarks/> <System.Xml.Serialization.XmlTypeAttribute([Namespace]:="http://www.cqds.com/CQDSWebservice")> _ Public Class DECISION_REQUESTTypeGuideline Inherits GuidelineType '<remarks/> <System.Xml.Serialization.XmlAttributeAttribute()> _ Public VersionId As Short '<remarks/> <System.Xml.Serialization.XmlIgnoreAttribute()> _ Public VersionIdSpecified As Boolean '<remarks/> <System.Xml.Serialization.XmlAttributeAttribute()> _ Public RateSheetName As String '<remarks/> <System.Xml.Serialization.XmlAttributeAttribute()> _ Public ProductID As String '<remarks/> <System.Xml.Serialization.XmlAttributeAttribute()> _ Public ProductName As String End Class '<remarks/> <System.Xml.Serialization.XmlTypeAttribute([Namespace]:="http://www.cqds.com/CQDSWebservice")> _ Public Class GuidelineType '<remarks/> <System.Xml.Serialization.XmlAttributeAttribute()> _ Public Id As String '<remarks/> <System.Xml.Serialization.XmlAttributeAttribute()> _ Public Name As String End Class Tag: .Net Runtime Error Tag: 102537
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 - sending multiple files over the network I want to send the multiple files over the network, i am having one window services that services keep on listening the one port and accept the request(multiple client can send the request) that request in the form of requesting some image file the requested files may be more than 2000 image files. i want to know how to implement this concept can we use multiple port to send the file or else one port? If i send the files in multiple port a) if the server send the multiple files over the multiple port how the client system should be act? b) if the server send the multiple files over the multiple port can we implement the thread concept for sending the file in each port, if it is, how to implement the thread concept in client system and how to retrieve the each files and stored in client machine Thanks in advance! Renganathan Tag: .Net Runtime Error Tag: 102536
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 - tool to highlight redundant classes & methods... I am currently working on a large code base that has several classes\methods that are never used. Does anyone know of a tool that will generate a list of classes & methods that are not used or referenced? Cheers Ollie Tag: .Net Runtime Error Tag: 102535
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 - .NET Intranet Zone Permission to Full Trust?? I build installs for our software CD. One of the application is a vendor app and we don't have access to the code. They recently implemented .Net platform. When we received their latest updates, we are having problems with LAN/Network installs. One of the function is to create a pdf document and gives you an option to print. I am getting .NET security errors. One error box has WsPrint.exe as title and throws in an exception. Another message is Microsoft .NET framework error saying application has attempted to perform an operation not allowed by security policy. If I go in Control-Panel-Admin Settings -.NET Framework 1.1 Configuration - Runtime Security Policies, and change the LocalIntranetZone from medium trust to FULL trust, I resolve all of the my issues. It only happens in Server installs, stand-alone PCs are fine. Obviously this is not a good solution to change user's security. Is there a work around? I am using install shield 5.1 to create our installs. Thank you, Aamir. Tag: .Net Runtime Error Tag: 102525
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 - XML Serialization - Interface I have a base class that inherits from CollectionBase that stores a group of objects that inherit from an interface (let's call it IEntity). The default item[] property and Add() method both handle IEntity types, and I implement this interface on several objects. When trying to serialize it I get a serialization error ("cannot serialize interface IEntity") when I try to return a class that contains a property that uses the collection type. I tried shadowing the item[] member to return a class type rather than an interface type, but no luck. I'm starting to loose the rest of my hair ;-) Thanks in advance, Josselin Tag: .Net Runtime Error Tag: 102522
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 - How to keep memory usage and CPU as low as possible? Hi, How can I keep the memory usage and CPU usageas low as possible in a VB.NET application? any special techniques, any things to consider? Thanks a lot in advance, Pieter Tag: .Net Runtime Error Tag: 102521
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 - .NET Framework 2. Beta: final version? Hi, I want to develop an application with Visual Studio 2005 Beta 2. But When theo fficial release will happen in some months: will the 2.0 Framework be changed, or does it stay the same as the current 2.0 Beta 2? In cae it isn't the same: any harm for desisntalling it and installing the new release at that moment, thanks, Pieter Tag: .Net Runtime Error Tag: 102520
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 - Encrypting a Web.Config value using Microsoft Enterprise Library-J The Data EDRA is execellent in allowing Connection String to be encrypted, but as yet I could not find any example of how to encrypt the following entry: <appSettings> <add key="SpecialPassword" value="aPasswordIwantEncrypted" /> </appSettings> How could I do this? I already have securitycryptographyconfiguration.config and the encryption .key file setup (when I set up my Data EDRA to encrypt connection sting password). Tag: .Net Runtime Error Tag: 102519
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 - Finding DOT NET Framework Installed Path Actually I have a 'windows service' as a part of the whole Visual Studio solution (VS.NET 2003). I want to install this 'windows service' as a part of the installation for the actual web-application. I used to do, InstallUtil < service-exe-filename-with-path > from the command prompt for Visual Studio 2003. I wanted to include this in the installer itself. Where to get the path for .NET framework How to call the 'installutil < filename >' Tag: .Net Runtime Error Tag: 102518
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 - .NET controls running in Internet Explorer Hi, our system is running .NET controls hosted in Internet Explorer. Everything was fine up to the moment when we started to get messages: "the publisher could not be verified", browsing the pages having these ".NET applets" inside. The message keeps repeating each time I enter the page, user needs to press 'Run' on the messagebox prompting. I went to lower the security setting for the browser and dotnet: - adding the site to trusted sites - enabling all dotnet/activex/java downloading/executing - making checks in registry (e.g. HKEY_CURRENT_USER\Software\Microsoft\Internet Explorer\Download) - i tried to sign controls giving them a strong name - no change I'm running Windows XP professional version 2002 Service Pack 2. This is the only version facing this problem (maybe this 'version 2002' causes this). On other machines I'm using SP2 for XP pro for a year without any problems. Our .NET controls of course do not have any certificate (they're not approved by any VeriSign like agency) - system i working in LAN only! - we would like to avoid unneeded costs - would this surely help anyway? - could thi sthing be solved using test certificate (using cert2spc.exe?) Any clue? Anybody facing this problem? Igor Kramaric, dev.engineer P.S. I found many articles addressing the security issues ragrding SP2 on XP, none of them is focusing on .net controls in IE Tag: .Net Runtime Error Tag: 102517
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 - Image processing application If i had to develop a windows forms based application , that would be used for viewing a running video in one window, freezing an image from the video into another window based on user's choice, and then change the resolution, position, color intensity and zoom of the frozen image, what should i be using ? C# and Win 32 ? Or Just C# ? Or VC++.NET ? (Or MFC / ATL ?). Please advise , since i have only used C# for data driven application so far, and would have to learn the other technologies for this application. Regards, Chak. Tag: .Net Runtime Error Tag: 102516
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 - Carriage Return in WinForms Label? Is it possible to insert a carriage return in a WinForms Label's Text with the VS.NET WinForms Designer? (Including '\n' doesn't work -- that gets converted to '\\n'.) Tag: .Net Runtime Error Tag: 102512
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 - Is the Threadpool useless ? I have a problem with the threadpool I can't seem to figure out. If I use ThreadPool.QueueUserWorkItem to queue say 25 work items, I would expect the Threadpool to give me the 25 free threads of the thread pool i.e. execute my WaitCallback method 25 times instantly. However, there seems to be about 0.5 sec. delay in pulling each thread of the queue. Running the test code public void WaitCallback( object state ) { System.Diagnostics.Debug.WriteLine("Thread "+((int)state).ToString()+" started"); Thread.Sleep(10000); } for( int i =0; i<50; i++) ThreadPool.QueueUserWorkItem(new WaitCallback(WaitCallback),i); I would expect the threadpool to instantly give me all available threads thus executing the WaitCallback method 25 times. However, it takes at least 25 seconds for the pool to kick off 25 threads. If you do not get the threads immediately, this in my book would make the Threadpool completely useless for server purposes and any other for that matter. Is this as designed or am I doing something wrong ? Regards Per Millard Systems Architect Copenhagen Denmark Tag: .Net Runtime Error Tag: 102511
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 - Problem with .Net app using 25% cpu Hi! I am developing a .Net app and I have got some problems with the program suddenly using 25% cpu... The strange thing is that my program is not doing anything(as far as I can tell), and the UI is just as responsive as ever, even though it's single threaded (shouldn't it get a little sluggish??), leading me to believe the problem must lie in a thread I don't controll (GC????) . The program will keep using 25% cpu until shutdown, when restarted it can work satisfactory (about 1-2% cpu) for anything between 10 minutes to 10 hours before the problem reappears. Using a process viewer I have found the faulting thread to be spending time in mscorwks.dll!ReleaseFusionInterface, anyone know what this is??? Any help would be greatly appreciated Sincerley Rune Lanton Transportnett AS Tag: .Net Runtime Error Tag: 102507
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 - OnGotFocus Problem I am deriving a class from TextBox to implement a NumericBox. I am overriding OnGotFocus and OnLostFocus methods but On GotFocus is causing problems. Actually the commented lines are causing problems. These throw Win32 exception that windows was unable to create handle. I dunno wats wrong. Plz help protected override void OnGotFocus(EventArgs e) { //this.TextAlign=HorizontalAlignment.Left; //this.SelectionStart=base.Text.Length; base.OnGotFocus(e); } protected override void OnLostFocus(EventArgs e) { this.TextAlign=HorizontalAlignment.Right; base.OnLostFocus(e); } Tag: .Net Runtime Error Tag: 102506
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 - Regular Expression required RegEx heros, I want to validate a certain field such that it shouldn't contain the percentage character (%) or the asterisk character symbol (*). The specification is that: (1) The field must not contain the percentage symbol; AND (2) The field must not contain the asterisk symbol. It should contain neither of them. Can you please help me with the RegEx for this? Tag: .Net Runtime Error Tag: 102505
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 - Using XmlSerializer What do i need to add to my class so that the ArrayList the holds a collection of my class will serialize properly. heres my class [System.Xml.Serialization.XmlInclude(typeof(Card))] public struct Card { private int numbericvalue; private CardDeck.Suits suit; private CardDeck.Types type; public CardDeck.Suits Suit { set { suit = value; } get { return suit; } } public CardDeck.Types Type { set { type = value; } get { return type; } } } I create an ArrayList, add the class to the ArrayList and try to call XmlSerializer.Serialiaze(myArrayList); i recieve this error: The type Card was not expected. Use the XmlInclude or SoapInclude attribute to specify types that are not known statically what else do i have to add to my Card class so that it will work Tag: .Net Runtime Error Tag: 102504
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 - Binding a datagrid to a System.Collections member Ok, all I am doing is trying to bind a data grid to an IDictionary. Here goes: Sub Page_Load(sender As Object, e As EventArgs) If Not IsPostBack() Then Call BindData() End Sub Public Sub BindData() Dim Skl As New Hashtable Skl.Add(1, "Visual C#") skl.Add(2, "Visual Basic") skl.Add(3, "Win32 API Programming") dg.DataSource = skl dg.DataBind() End Sub The error I get is: System.Web.HttpException: DataGrid with id 'dg' could not automatically generate any columns from the selected data source. on the line: dg.DataBind() So, is there some special glue when you have to bind a datagrid to a non-relational source such as IList or IDictionary or Hashtable? Tag: .Net Runtime Error Tag: 102486
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 - VPN in VB.NET Hi all, I'm trying to initiate a VPN connection programically from VB.NET. I know you can Process.Start(the .lnk file), but then I would like to cleanly manage vpn disconnections. Has anybody found a way to do that from WMI/net.sockets? Thanks, Vince Tag: .Net Runtime Error Tag: 102484
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 - String stream in VB.NET 2003 (.NET 1.1) I have some libraries that will write to a stream. I would like them to write to a string, which I can then manipulate in memory, rather than to a file. I cannot find documentation for how to get a stream that writes to or reads from a string. Is such functionality available? Thanks! ~BenDilts( void ); Tag: .Net Runtime Error Tag: 102433
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 - Converting Tif to Jpeg problem (Sorry for the double post I just saw the naming required for themanged newsgroup and I need an answer!! Thanks) Hi, I'm writing an application that extract attachment from Exchange, save it in an SQL DB and then display it over the web. Everything works fine for JPG, GIF, etc. However for TIFF file I need to convert them. However my code does not seem to work... I can convert from JPEG to GIF but not from TIFF to GIF or JPEG. For some reason the converted TIFF image appears to become corrupted during the conversion... The resulting JPEG image shows an empty large image holder. If I "re-convert" (or if you prefer "re-save as a JPEG") a second time the image again before displaying it, then it shows a portion of the image but then seems to repeat a "pixel row" indefinetely till the bottom... Any idea has to what I'm doing wrong? Thanks a lot for your help. Here is the code I use: //Converts the bytes extracted from the exchange attachment //Note: I tried using a file instead of memory stream with the same results public byte[] ConvertTiffToJpeg(byte[] tiffImage) { //Creating memory stream with the raw image data System.IO.MemoryStream memStrm = new System.IO.MemoryStream(tiffImage, true); memStrm.Write(tiffImage, 0, tiffImage.Length); //Create an image from the memory stream System.Drawing.Image img = System.Drawing.Image.FromStream(memStrm, true, false); //Get the list of available encoders System.Drawing.Imaging.ImageCodecInfo[] codecs = System.Drawing.Imaging.ImageCodecInfo.GetImageEncoders(); //find the encoder with the image/jpeg mime-type System.Drawing.Imaging.ImageCodecInfo ici = null; foreach (System.Drawing.Imaging.ImageCodecInfo codec in codecs) { if (codec.MimeType == "image/jpeg") ici = codec; } //Create a collection of encoder parameters (we only need one in the collection) System.Drawing.Imaging.EncoderParameters ep = new System.Drawing.Imaging.EncoderParameters(); //Create an encoder parameter for quality with an appropriate level setting ep.Param[0] = new System.Drawing.Imaging.EncoderParameter(System.Drawing.Imaging.Encoder.Quality, (long)100); //Convert the tiff image to jpeg and save the result to a new memory strem System.IO.MemoryStream convertedMs = new System.IO.MemoryStream(); img.Save(convertedMs, ici, ep); //Convert the jpeg image back to byte return convertedMs.ToArray(); } -- Martin Rajotte Incycle Software Tag: .Net Runtime Error Tag: 102428
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 - Problem converting TIFF to JPEG Hi, I'm writing an application that extract attachment from Exchange, save it in an SQL DB and then display it over the web. Everything works fine for JPG, GIF, etc. However for TIFF file I need to convert them. However my code does not seem to work... I can convert from JPEG to GIF but not from TIFF to GIF or JPEG. For some reason the converted TIFF image appears to become corrupted during the conversion... The resulting JPEG image shows an empty large image holder. If I "re-convert" (or if you prefer "re-save as a JPEG") a second time the image again before displaying it, then it shows a portion of the image but then seems to repeat a "pixel row" indefinetely till the bottom... Any idea has to what I'm doing wrong? Thanks a lot for your help. Here is the code I use: //Converts the bytes extracted from the exchange attachment //Note: I tried using a file instead of memory stream with the same results public byte[] ConvertTiffToJpeg(byte[] tiffImage) { //Creating memory stream with the raw image data System.IO.MemoryStream memStrm = new System.IO.MemoryStream(tiffImage, true); memStrm.Write(tiffImage, 0, tiffImage.Length); //Create an image from the memory stream System.Drawing.Image img = System.Drawing.Image.FromStream(memStrm, true, false); //Get the list of available encoders System.Drawing.Imaging.ImageCodecInfo[] codecs = System.Drawing.Imaging.ImageCodecInfo.GetImageEncoders(); //find the encoder with the image/jpeg mime-type System.Drawing.Imaging.ImageCodecInfo ici = null; foreach (System.Drawing.Imaging.ImageCodecInfo codec in codecs) { if (codec.MimeType == "image/jpeg") ici = codec; } //Create a collection of encoder parameters (we only need one in the collection) System.Drawing.Imaging.EncoderParameters ep = new System.Drawing.Imaging.EncoderParameters(); //Create an encoder parameter for quality with an appropriate level setting ep.Param[0] = new System.Drawing.Imaging.EncoderParameter(System.Drawing.Imaging.Encoder.Quality, (long)100); //Convert the tiff image to jpeg and save the result to a new memory strem System.IO.MemoryStream convertedMs = new System.IO.MemoryStream(); img.Save(convertedMs, ici, ep); //Convert the jpeg image back to byte return convertedMs.ToArray(); } Tag: .Net Runtime Error Tag: 102424
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 - Bug in System.Timers.Timer class The System.Timers.Timer class has a property Interval, which is a double (timer interval in milliseconds) If interval is set to a double value > Int32.MaxValue and the timer is started, an ArgumentOutOfRangeException is thrown (Additional information: Number must be either non-negative or -1). It seems to me that internally, the double Interval is casted to an int... Geert Depickere. Tag: .Net Runtime Error Tag: 102417
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 - Microsoft.Web.UI.WebControls not found I downloaded a complete DataGrid example, "IssueTracker", for accessing an Access DB with a DataGrid control. Sounded like a cakewalk. The first line of the .aspx file referenced the "Microsoft.Web.UI.WebControls" namespace. I got an error msg that the namespace could not be found. Any ideas? The gory details follow: I expanded the compressed, downloaded app into "AppFolder", which had .aspx and .vb files and a couple of sub-folders. The first line of the .aspx file is: <%@ Register TagPrefix="iewc" Namespace="Microsoft.Web.UI.WebControls" Assembly="Microsoft.Web.UI.WebControls" %> I copied the AppFolder to the wwwroot folder a la Jeff Prosise's guidance for testing his MyComicsRepeater example. I pointed IE to http://localhost/AppFolder/IssueTracker.aspx I got: · Server Error in '/' Application. · Parser Error Message: File or assembly name Microsoft.Web.UI.WebControls, or one of its dependencies, was not found. · Line 1: <%@ Register TagPrefix="iewc" Namespace="Microsoft.Web.UI.WebControls" Assembly="Microsoft.Web.UI.WebControls" %> The latter line was rendered in red.) I searched the web and found · http://msdn.microsoft.com/library/default.asp?url=/workshop/webcontrols/assemblies/webcontrols_entry.asp that claimed "Microsoft Internet Explorer WebControls are not currently supported". A few other pieces of possibly relevant data: I'm running · WinXP-Pro/SP2 with security upgrades from MicrosoftUpdate and .NET 1.1 · Visual Studio .NET (MSDE 2002 using .Net Framework 1.0) despite the fact the I've got 1.1 installed Tag: .Net Runtime Error Tag: 102403
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 - What is the best way to implement this scenario? We need to implement an application with following requirements. This application needs to use a user defined component that plays movie files. This application needs to run through web pages as well as a stand-alone application through CD media. Is has to be developed in VC.Net 1.1/2.0. What is the best way to implement this application whereby maximum code utilization can be done for both web and cd usage? Tag: .Net Runtime Error Tag: 102399
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 - Process - no window open Hi, I have a C# (form) program. I need it to run a 'command line program'. I have it working fine using Process, but it (temporarily) opens a Command Prompt window everytime it runs (and closes it when it finishes). How do I get it to run in the background without opening a window each time I call process.Start()? (FYI: I searched for this on the web but couldn't find anything) Thanks, Hilton Tag: .Net Runtime Error Tag: 102388
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 - Detecting if SMTP server is running Hi I'm working on a project where some business process rely on several external servers to perform processing. These are Sql Server x 2, Credit Card processing and Mail Server. Before entering the business process, I'd like to verify that each of these are available, in particular the SMTP Server, which is the most volatile of the above servers. What would be the best way to detect if the SMTP server is up and running? Ben Tag: .Net Runtime Error Tag: 102386
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 - select multiple xml fragments from xml file Hi, I have an xml file (see below). using C# I would like to pull out all student names and write then to screen. As there may be an unknown number of <studentName> tags in the file, what i would like to do is "select" all <studentName> nodes and for each one write out first name and last name. can anybody point me in the direction (or show me how to do this.) what I would like is something like the following foreach loop foreach studentname element in the xmldocument { console.writeline(...student first name) console.writeline(...student last name) } many thanks in advance. cheers martin. ============================================================================ ===================================================== <names> <college>xml College</college> <year>1995</year> <class>orange</class> <studentName> <Firstname>John</Firstname> <LastName>moses</LastName> </studentName> <studentName> <Firstname>greg</Firstname> <LastName>bennet</LastName> </studentName> <studentName> <Firstname>lucus</Firstname> <LastName>starsky</LastName> </studentName> <studentName> <Firstname>chuck</Firstname> <LastName>jennings</LastName> </studentName> <studentName> <Firstname>nick</Firstname> <LastName>edwards</LastName> </studentName> <studentName> <Firstname>gordon</Firstname> <LastName>bennet</LastName> </studentName> <studentName> <Firstname>james</Firstname> <LastName>galloway</LastName> </studentName> <studentName> <Firstname>paul</Firstname> <LastName>elley</LastName> </studentName> <studentName> <Firstname>simon</Firstname> <LastName>simone</LastName> </studentName> </names> Tag: .Net Runtime Error Tag: 102385
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 - Enterprise Library - Asynchronous Logging... I have managed to get asycnhronous logging work for an asp.net application and I wanted some clarification on the method. Normally if the application is logging synchronously it has all the settings for the logging application block in the app.config for the application. But if you want to use asynchronous logging you have to specify asynchronous logging for all logging types in the app.config of the application and then define the extact logging sinks in the app.config of the msmqdistributor.exe (windows service). Is this correct? Seems rather confusing and rather messy - application specific logging information have to be put into a generic widows service that could be used by more than one application on the system. cheers Ollie Riches Tag: .Net Runtime Error Tag: 102382
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 - Help with HttpWebRequest.Method Thanks in advance for any help offered. I am trying to fill out a form on a web page and submit the form data to the web server , all from within my vb program. The html sorce ( reduced for this post is) <FORM ACTION="a_valid_url.cfm" METHOD="POST"> Trend <SELECT NAME="trend_id"> <OPTION VALUE="ALL;ALL">ALL <OPTION VALUE="FIRST;abc">First <OPTION VALUE="SECOND;abc">Second </SELECT> <TABLE WIDTH=400> <TR ALIGN=CENTER><TD>Month <SELECT NAME="month"> <OPTION VALUE="ALL" SELECTED>ALL <OPTION VALUE="1">Jan <OPTION VALUE="2">Feb </SELECT> </TD> <TD>Day <SELECT NAME="DAY"> <OPTION VALUE="ALL">ALL <OPTION VALUE="1">1 <OPTION VALUE="2">2 </SELECT> </TD> </TR> </TABLE> <INPUT TYPE="submit" VALUE="Search"> </FORM> In my vb program I set up a HttpWebRequest as follows. I have no experience with HTML or Jscript. Limited experience with VB. I want to submit a trend_id of "FIRST" with "ALL" months and "ALL" days from my vb prog. Dim STE As String = "http://www.a_valid_url" Dim m_cred As New NetworkCredential("username", "password") Dim m_Cache As New CredentialCache() m_Cache.Add(New Uri(STE), "Basic", m_cred) m_Cache.Add(New Uri(STE), "Digest", m_cred) m_Cache.Add(New Uri(STE), "NTLM", m_cred) m_Cache.Add(New Uri(STE), "Kerberos", m_cred) Dim mm_req As HttpWebRequest = CType(WebRequest.Create(STE), HttpWebRequest) mm_req.Credentials = m_Cache Dim srch As String srch = "I'm not sure what goes here??" Dim qq() As Byte = Encoding.ASCII.GetBytes(srch) mm_req.Method = "POST" mm_req.ContentLength = qq.Length mm_req.Timeout = 60000 Dim req_stream As Stream = mm_req.GetRequestStream req_stream.Write(qq, 0, qq.Length) req_stream.Close() Dim mm_resp As HttpWebResponse = CType(mm_req.GetResponse(), HttpWebResponse) Dim readStream As New StreamReader(mm_resp.GetResponseStream, Encoding.ASCII) Dim ch As String = readStream.ReadToEnd ... ... readStream.Close() mm_resp.Close() I have tried various ways of constructing 'srch' but I keep getting back the unfilled form. The server doesnt proceed to the url in the Action field of the form. -- Roger Tag: .Net Runtime Error Tag: 102380
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 - How can i generate sample xml file with data from xsd schema? How can i generate sample xml file with data from my xsd schema? Regards, Pawel Tag: .Net Runtime Error Tag: 102379
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 - UI.WebControls TreeView Hello. I have trouble with the microsoft treeview. When I run my project local everything seem to work. When I upload the project to the server I do the following. - Release project - Copy Project. (Only files needed to run this application - Upload the project to the server. When I open the webpage with my project och open the page with the treeview I only see text. Like this Publika bilder Flags 121.gif 134.gif canada.gif china.gif flag.gif flags_1142.gif flags_1143.gif flags_1144.gif flags_1145.gif france.gif isril.gif mexico.gif No nodes...... Regards... Tag: .Net Runtime Error Tag: 102377

Server is writing the text below in Application Event Log. Any idea?

The description for Event ID ( 0 ) in Source ( .NET Runtime ) cannot be
found. The local computer may not have the necessary registry information or
message DLL files to display messages from a remote computer. You may be able
to use the /AUXSOURCE= flag to retrieve this description; see Help and
Support for details. The following information is part of the event: .NET
Runtime version 1.1.4322.2032- w3wp.exe - Common Language Runtime Debugging
Services: Application has generated an exception that could not be handled.

Process id=0x3d20 (15648), Thread id=0x37ac (14252).

Click OK to terminate the application.
Click CANCEL to debug the application..

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