"Frames" in windows forms

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- Previous
  - 1
    - How to create a form looks like the Outlook Form Hi ng, how can i create a form that looks like the DesktopNotification Form from (Office) Outlook 2003. The Form fades in when you receive a new email. I tried to build this form, but it doesn't work. Has someone an idea or an example? thx, Patrick Tag: "Frames" in windows forms Tag: 72566
  - 2
    - System.NullReferenceException in unknown module during startup Hello, I am currently developing some control library for windows forms application in c#. But for some of the test application it throws up error box saying "System.NullReferenceException" in the unknown module as occured. Upon debugging I found that the error is thrown from the garbage collector thread. I could figure out the name of the dll and the method name which is throwing the exception. It occurs in mscorwks.dll!CallFinalizer() method. I do not have clue how this exception is getting generated. When the exception occurs the various constructors of the controls and their embeded constructor is getting called. It occurs before main form load event. The other observation is also that the exception started while we introduced resx file for the various resources in the control library. Any pointer? Thanks Kachra Tag: "Frames" in windows forms Tag: 72553
  - 3
    - form dimensions I have just started trying out vb.net coming from vb6 which i know extremely well My problem is very strange, is it just me or is the top property returning werid values ie. -4. it should be in theory 0 relative to the internal client rect of course that could be the screen position but i can't actually find the equivilent properties from vb6 forms for the internal client rectangle ie. scalewidth etc It just seems like a completely different language, although it does seem more like c++ which i like my only grevience is that it's like learning from scratch again which is quite annoying when you spend all that time learning the details of the core vb stuff then they just change it all in a drop of a hat grr... Tag: "Frames" in windows forms Tag: 72549
  - 4
    - Interpret empty datagrid cells as empty strings When I clear a cell in a datagrid, the corresponding (string) field in the underlying datatable becomes null. I would prefer that it be an empty string, as the corresponding database field is not nullable. Does anyone have any tips as to how to accomplish this? Thomas Berg Tag: "Frames" in windows forms Tag: 72538
  - 5
    - Change a disable control color Hi Does anyone know how to set a color to a disable control (I.E. a textbox when you set the disable property to true you get the gray windows disable color, and I would like to set it in blue I already tried to override the event - OnEnableChange - but it doesn't wor Any tips or trick? Tag: "Frames" in windows forms Tag: 72537
  - 6
    - "MDAC required" but it's installed... Hi, I'm having this error in a VB.NET-application at the moment that I attempt to read data from an SQL Server: The .Net Data SQL Provider (System.Data.SqlClient) requires Microsoft Data Access Components(MDAC) version 2.6 or later. at System.Data.SqlClient.ConnectionPool.GetConnection(Boolean& isInTransaction) at System.Data.SqlClient.SqlConnectionPoolManager.GetPooledConnection(SqlConnec tionString options, Boolean& isInTransaction) at System.Data.SqlClient.SqlConnection.Open() Failed to Load Call Data Call Data Failure However the MDAC 2.7 is installed! And when I look into the registry it is indicated as installed too: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\DataAccess\FullInstallVer = "2.71.9040.2" The .NET Framework is installed (1.1), and it is on a Windows NT (Sp 6a) pc. Does anybody know about thisp roblem? And some solution? Could it be because of some restictions (although I do have full Admin rights on the pc). I'ts really urgent and bothering me (I have to do a demo in 20 minutes, hehe). Thanks a lot in advance, any help, hints etc will be really appreciated! Pieter Tag: "Frames" in windows forms Tag: 72536
  - 7
    - Close & restart an application Hi, I would like close & restart the same application automatically. How can I achieve this. Please suggest Thanks & Regards CV Tag: "Frames" in windows forms Tag: 72535
  - 8
    - Control.CreateControl does not create Handle According to the .NET doc, calling the CreateControl() will create a handle for the winform control and its child. But I doesn't seem to get it work. I have a code like this : private void button6_Click(object sender, System.EventArgs e) { m_Form2 = new Form2(); m_Form2.CreateControl(); // This should show me TRUE. But instead, it show me FALSE which is // the not expected. MessageBox.Show(m_Form2.IsHandleCreated.ToString()); } Is this a know issue or I miss out something ? Tag: "Frames" in windows forms Tag: 72532
  - 9
    - DataSource property to control design time I want to add a DataSource property to my control that, at design time, will allow the designer to drop down a list of valid datasource components just like the DataGrid control. The type on the DataSource property is just 'object', so I know it isn't that. Is there a special designer attribute I have to use on my property Actually my Control has a Combobox and i just want to enable the combobox's (DataSource, DisplayMember, ValueMember) properties If I map the properties 1to1 like this [Category("Data"), DefaultValue(null), Description("The datasource that is used to populate the list with items.") public object DataSourc get{return this.comboBox.DataSource; set{this.comboBox.DataSource = value; [DefaultValue(""), Description("Gets or sets the column for display."), Category("Data") public string DisplayMembe get{return this.comboBox.DisplayMember; set{this.comboBox.DisplayMember = value; [DefaultValue(""), Description("Gets or sets the column for value."), Category("Data") public string ValueMembe get{return this.comboBox.ValueMember; set{this.comboBox.ValueMember = value; It breakes the Designers ability to show a dropdown list of avaiable DataSource's. Tag: "Frames" in windows forms Tag: 72527
  - 10
    - How can I get the name of a ToolBarButton object. I need to iterate the Buttons collection in a toolbar and get the name of each button. The objects in the collection are not normal Button objects. They are ToolBarButton objects, which do not appear to have a Name property. Is there some other place to get the name? Tag: "Frames" in windows forms Tag: 72524
  - 11
    - Visual inheritance bug? Hello gurus! In my C# project I have a localized form that I use as the prototype for two others. The prototype form has a ListBox control data bound to an ArrayList containing data elements of a custom class type. At design time its Items collection is empty and is populated by data binding only when the application is executed and the underlying ArrayList collection is created. The inherited forms' ListBox controls seem to somehow mysteriously inherit not only the properties of the prototype form's ListBox control, but also its Items collection. It sounds crazy, but I get errors at compile time which are caused by the code Windows Forms Designer automatically inserts into the InitializeComponent() method. This is what it looks like: this.lstItems.Items.AddRange(new object[] { ((object)(resources.GetObject("lstItems.Items"))), ((object)(resources.GetObject("lstItems.Items1"))), ((object)(resources.GetObject("lstItems.Items2"))), ((object)(resources.GetObject("lstItems.Items3")))}); This line is inserted automatically every time I save the inherited form. It seems that VS caches the number of elements in the Items collection the last time the application is run in debug mode and assumes the elements exist in the resource file, which they don't. Any ideas how to get rid of this annoying behaviour? P.S. If you reply directly, please remove the anti-spamming proclamation from my e-mail address. Tag: "Frames" in windows forms Tag: 72520
  - 12
    - Memory issues Hi, I'm having several memory leaks in my Windows Form (C#). Testing, I found a curious thing: Put a ListView control in a Windows Form, run the project and start the TaskManager. Each time you focus the form or pass the mouse in/out the ListView, the memory used by the application increases. And, besides that, the start memory used is about 12MB. Isn't that a little big? Word uses about 8MB. Is this a Garbage Collector problem, or later this resources will be collected? Or, this is a internal problem of the ListView control? Thanks. Bruno Rodrigues. São Paulo SP, Brasil. Tag: "Frames" in windows forms Tag: 72517
  - 13
    - Databinding - Best Practice (object-oriented) Hi, I would like to know your opinions about the best way of implementing databinding in an application. Let's take a simple example: we have a table called 'Employee' and we would like to display its content in a DataGrid. 1st solution: -Export all the Employee records from the database into a datatable. -Bind the datatable to a datagrid. -The user can insert/delete/edit records of the datatable through the datagrid and we can easily save the data back to the database. 2nd solution (object oriented). Here I consider than an employee is an object. -Create a class called 'Employee'. -Export all the Employee records from the database into a datatable. -Create an instance of the Employee class for each record of the datatable. -Store all the instances in a collection (eg. ArrayList). -Bind the collection to a datagrid The 1st solution works very well and is easy to implement but is not object-oriented. The 2nd one seems to be the logical way of doing it (creation of a 'Employee' class etc) but involves developing much more code. Besides it is not possible to add new employee through the DataGrid unless my collection implements the IBindingList interface which is not straightforward to do and also involves developing even more code. I would tend to use the 1st solution as it's easy to implement and it works fine but I can't help but think that it's not the right way of doing it. For example if every time an employee is created or modified in the DataGrid we want to do some checks (for example that the FirstName and the LastName are different) in the 2nd solution I would put this business logic in the 'Employee' class and I would be sure that whoever uses my 'Employee' class will use the correct business logic. If I use the 1st solution, I would have to use something like the ColumnChanged event of the datatable to check what the user has entered and therefore this business logic will be mixed with the code of the client application which will make the code more difficult to maintain. My example is quite simple but you get the idea. What's the best way of doing the above in your opinions? Thanks, Anthony. Tag: "Frames" in windows forms Tag: 72516
  - 14
    - SEHException when closing a form I'm trying to enable Windows XP themes in my application. First I tried adding a call to Application.EnableVisualStyles(), but that didn't appear to actually do anything (aka I still wasn't getting styles). Yes, I have all my buttons and what not using FlatStyle = FlatStyle.System. I added a manifest file to the application directory, and this enabled the visual styles I was looking for. However, now when I call Close() on any form, I get an SEHException whos message is "External component has thrown an exception". The exception occurs in System.Windows.Forms.UnsafeNativeMethods.DispatchMessageW(MSG& msg). The internal error code of the SEHException is -2147467259. It appears to be related to the Application.EnableVisualStyles() call. If I keep the manifest file but remove the call, then I get visual styles and no exception. If I remove the manifest file but keep the call, I don't have visual styles and I get the exception. Any ideas? Thanks. Ryan Gregg Tag: "Frames" in windows forms Tag: 72515
  - 15
    - WinForms and WebService Dear All, If I create a proxy object to a WebService in my Form as an instance object, does it create a process thread in my WebServer that is hosting the WebService?.... As the WebService object gets an error if I try to call a WebService method after around 30 minutes of inactivity...is re-creating the oprxy object the right solution... Please help... Many Regards Jack Tag: "Frames" in windows forms Tag: 72510
  - 16
    - DataGrid The datagrid.click event only fires when the grid is clicked (ie the lines around each cell Is there a way to detect a click inside a cell in the datagrid TIA Tag: "Frames" in windows forms Tag: 72509
  - 17
    - DataGrid I am pointing a DataGrid at a DataTable to display some data. Is there a way to a) hide columns that are displaye an b) update the row header with some tes TIA Tag: "Frames" in windows forms Tag: 72508
  - 18
    - DataGrid : Different Alignments for Columns and Headers Is there a way to align the Column headers of a datagrid, differently from the columns itself For example, i want to Center align the Header,and right align the numbers.. How can I customize the painting of the column header, just like a DataGridColumnStyle ? -- .hibri Tag: "Frames" in windows forms Tag: 72506
  - 19
    - Handling Exceptions in WinForms Dear All, In ASP.Net we had... Sub Page_Error(Source As Object, E As EventArgs) Dim message As String = "<font face=verdana color=red>" _ & "<h4>" & Request.Url.ToString() & "</h4>" _ & "<pre><font color='red'>" & Server.GetLastError().ToString() & "</pre>" _ & "</font>" Response.Write(message) End Sub where from Server.GetLastError we could get the error and display it neatly to the user...for all the errors that are unhandled in the Form...is there a similar funtion in WinForms...I tried to search one but did not get it... Please help... Thanks & Regards Jack Tag: "Frames" in windows forms Tag: 72505
  - 20
    - Embedding the WOrd Windows in Win Forms or other Windows COntrol HI, I want to embed the Microsoft word window in my WIndows forms designed in C# ,net..... can anybody suggests, apart from using the Webbrowser control, what can be the other option avaialable to us. Thanks Vikash Tag: "Frames" in windows forms Tag: 72503
  - 21
    - Threading This is a multi-part message in MIME format. ------=_NextPart_000_0008_01C446AB.FE1D1FD0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable All - I have the need to make my app multi threaded for those long = running tasks. Some of them are not a problem but the question I have is = with SQL and populating items on a form. If I create a new thread, = connect to my SQL, run a long query and then populate a combobox within = this new thread; I am guessing I should not do this. Somewhere I read = that items created on one thread should not be manipulated on another. How does one go about doing this? I have read through the help and = examples but didn't see anything that jumped out as an answer. Thanks, Brian P. Hammer ------=_NextPart_000_0008_01C446AB.FE1D1FD0 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 6.00.2800.1400" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff> <DIV><FONT face=3DArial>All - I have the need to make my app multi = threaded for=20 those long running tasks. Some of them are not a problem but the = question I have=20 is with SQL and populating items on a form. If I create a new thread, = connect to=20 my SQL, run a long query and then populate a combobox within this new = thread; I=20 am guessing I should not do this. Somewhere I read that items created on = one=20 thread should not be manipulated on another.</FONT></DIV> <DIV><FONT face=3DArial></FONT> </DIV> <DIV><FONT face=3DArial>How does one go about doing this?  I have = read=20 through the help and examples but didn't see anything that jumped out as = an=20 answer.</FONT></DIV> <DIV><FONT face=3DArial><BR>Thanks,<BR>Brian P. = Hammer</FONT></DIV></BODY></HTML> ------=_NextPart_000_0008_01C446AB.FE1D1FD0-- Tag: "Frames" in windows forms Tag: 72499
  - 22
    - .NET can only get MainWindowTitle from a process...? Hi, I am developing my own taskbar like explorers. Therefore I need to be able to get a list of all open windows, and their associated icon (not necesarily the .exe file icon). Furthermore any information about how to retrieve systray icons would be great. I guess I cannot avoid using API, as the .NET framework only supports MainWindowTitle, and for instance explorer has many windows open within the same process? Anyone know if Whidbey supports this? (i've tried the prebeta but cannot find anything) Tag: "Frames" in windows forms Tag: 72492
  - 23
    - Help needed: Animated controls in VS .NET Hi I am looking for an effective way to animate windows controls in the Visual Studio .NET programming environment. I want to attempt to have the effect of a control sliding onto the screen when a button has been pressed for example. I have tried to do this by repeatedly changing the form.Location property (within a thread) until the desired coordinates was reached but this behavior seems to slow and hogging the CPU. Any ideas on how I should approach this matter? Thanks in advance. Pierre van Rooyen Tag: "Frames" in windows forms Tag: 72491
  - 24
    - combobox into toolbar Hi everybody, I'm pretty new to .NET framework so don't get hungry at my silly question Is there a way to put a combobox into a toolbar? I've been trying to do that for quite a long time with no success. If anyone has suggestions please let me know Thanks Tag: "Frames" in windows forms Tag: 72487
  - 25
    - Load dynamic data into comboBox based on input in ComboBox What I would like to do is In a win form, I have a comboBox, when the form is loaded, I don't want to populate the comboBox(I have a lot of data). Instead, I want the user to type in the first few letters of the search criteria, then I capture it and run the search and return the result back and load the comboBox dropdown at that time Any suggestion on how to do that? Is there a already written control out there that I can purchase? Tag: "Frames" in windows forms Tag: 72486
- Next
  - 1
    - http cookie use question I'm struggling with using the HttpCookie object on a code behind. Used in the page works great I'm getting a: Type 'HttpCookie' is not define I've tried adding the namespace to the vb form but no luck Imports System.Data.Sqlclien Imports System.Dat Imports Syste Imports System.Web.U Imports System.Web.UI.WebControl Imports System.Web.UI.HtmlControl Imports System.Web.HttpCooki It's use 'Now set cooki Dim objCookie As New HttpCookie("nasbawebsitenew" objCookie.Values("userid") = memberdata3("USER_EMAIL" objCookie.Values("userpassword") = memberdata3("USER_PASSWORD" objCookie.Values("datecreated") = Date.Now( objCookie.Expires = DateTime.MaxValu Response.Cookies.Add(objCookie Tag: "Frames" in windows forms Tag: 72483
  - 2
    - smart client application Can anyone point me to some documentation on how to build a real life smart client application. I also would like to read about typical way of creating a offline smart client application, components involved etc. I also would like to hear from people on how successful is this concept. Is this widely used or this is in its early stages. Your personal experience and opinion on this is really appreciated. Thanks Tag: "Frames" in windows forms Tag: 72481
  - 3
    - Binding XML data to a combobox and get the selected value Hi! I have problems with databinding of xml files to comboboxes and then getting the selected value of a selected item. For example, I have the following xmlfile: <?xml version="1.0" encoding="UTF-8" ?> <Foo xmlns="http://tempuri.org/test.xsd"> <Person xmlns="http://tempuri.org/test.xsd"> <number>114</number> <firstname>John</firstname> <lastname>Doe</lastname> </Mitarbeiter> </Foo> 1. Can anybody help me (with a snipplet of code) to fill a combobox (Windows form) with both names (first AND last name as displayed members) and number as a valuemember? 2. When an item of this cbx has been selected a function is called to show the selected VALUE (In this case number 114)? Can anybody show me this line of code to get the selected value? Hope anyone can help me with one of these problems because I have tried so much and nothing worked correctly... Thanks in advance, Marko Tag: "Frames" in windows forms Tag: 72476
  - 4
    - TextBox FLICKER Could someone point me to a solution I am appending text to bottom of a textbox and would like the display to scroll to the bottom where the new text is instead of the top of the textbox. I know the following solution but the issue with this is the FLICKER Any solution textBox1.AppendText("This is a test string \n") textBox1.SelectionStart = textBox1.Text.Length textBox1.ScrollToCaret() thank Abdullah Tag: "Frames" in windows forms Tag: 72475
  - 5
    - WindowState = FormWindowState.Maximized On my MDI application I am setting one from to WindowState = FormWindowState.Maximized. If this window is open then all windows open Maximized regardless of their settings. Thanks in advance for any help. -Brian K. Williams Tag: "Frames" in windows forms Tag: 72474
  - 6
    - Update Problem with Combobox DataGrid I have got combobox data grid sample from http://www.syncfusion.com/FAQ/WinForms/FAQ_c44c.asp#q480q I added code to update changed records but it does not work.Have some one idea how add update ,new and delete functionality to data grid with combobox coloum.Data grid displays data from two tables,related by foreign key relation.that is typical case often encountered in database applications. Tag: "Frames" in windows forms Tag: 72467
  - 7
    - Checking for required DLL's on startup I have a program that requires multiple DLL's, how can i check for these dependencies on startup? TIA, Ahmed *** Sent via Developersdex http://www.developersdex.com *** Don't just participate in USENET...get rewarded for it! Tag: "Frames" in windows forms Tag: 72466
  - 8
    - Undefined Error Hello Developpers I faced with an undefined error. I developped a Windows Forms Application. When I opened my project's Solution, all the documents, which were created before, listed properly at the Solution Explorer. But when I wanted to see my form by clicking on to Design View, the following error message displayed instead of the form itself ----> An error occurred while loading the document. Fix the error, and then try loading the document again. The error message follows Belirtilmemis hata (<-This message is in Turkish. It says Undefined Error I tried to opend my Windows forms, but I could not. I also checked my previously developed and design projects' forms. They could not be openned also Do you have any Idea Thank you very much from now. Tag: "Frames" in windows forms Tag: 72459
  - 9
    - After Form Re-Size event? Have an action I want triggered after a form is dragged to a certain size. Right now the code I am calling is running repeatedly during the whole drag to size action. I would like it to run only after the drag to size action has been completed. (Using VS 2002 - VB) Is this possible? Thanks in advance for any help -- / Sean the Mc / "I have not failed. I've just found 10,000 ways that won't work." - Thomas Alva Edison (1847-1931) Tag: "Frames" in windows forms Tag: 72455
  - 10
    - Code generation for property 'XXX' failed. Error was: ..... I am designing a component to be used on windows applications. 'code'''''''''''''''''''''''''''''''''''''''''''''''''''' Public Class SomeComponent Inherits System.ComponentModel.Component Private _gaugeSettings As New GaugeConfiguration Public Property GaugeSettings() As GaugeConfiguration .... end property End Class '''''''''''''''''''''''''''''''''''''''''''''''''''''''''' I want user to be able to configure the GaugeSettings within the Development environment. 'code'''''''''''''''''''''''''''''''''''''''''''''''''''''''' <TypeConverter(GetType(GaugeConfigurationConvertor)), _ DescriptionAttribute("Expand to see the GaugeSettings.")> _ Public Class GaugeConfiguration ..... End Class Public Class GaugeConfigurationConvertor Inherits ExpandableObjectConverter Public Overloads Overrides Function CanConvertTo(ByVal context As System.ComponentModel.ITypeDescriptorContext, ByVal destinationType As System.Type) As Boolean If destinationType Is GetType(GaugeConfiguration) Then Return True End If Return MyBase.CanConvertFrom(context, destinationType) End Function Public Overloads Overrides Function ConvertTo(ByVal context As System.ComponentModel.ITypeDescriptorContext, ByVal culture As System.Globalization.CultureInfo, ByVal value As Object, ByVal destinationType As System.Type) As Object If (destinationType Is GetType(System.String) AndAlso TypeOf value Is GaugeConfiguration) Then Dim gaugeSettings As GaugeConfiguration = CType(value, GaugeConfiguration) Return "string representation of the class" End If Return MyBase.ConvertTo(context, culture, value, destinationType) End Function Public Overloads Overrides Function ConvertFrom(ByVal context As System.ComponentModel.ITypeDescriptorContext, ByVal culture As System.Globalization.CultureInfo, ByVal value As Object) As Object If (TypeOf value Is String) Then Try Dim gaugeSettings As New GaugeConfiguration ..... Return gaugeSettings Catch Throw New ArgumentException("Can not convert '" & CStr(value) & "' to GaugeConfiguration") End Try End If Return MyBase.ConvertFrom(context, culture, value) End Function End Class '''''''''''''''''''''''''''''''''''''''''''''''''''''''''''' When I try to configure this SomeComponent object on a form, things work fine until I try to save the form, when I try to save, I get the following error; Code generation for property 'GaugeSettings' failed. Error was: ''GaugeConfigurationConvertor' is unable to convert 'LaserGaugeControl.GaugeConfiguration' to 'System.ComponentModel.Design.Serialization.InstanceDescriptor'.' I actually added Serialization support to GaugeSettings class and a clone method, still I kept getting the same error. Can anyone help? Thanks a lot, Hazim... Tag: "Frames" in windows forms Tag: 72453
  - 11
    - Windows Forms App stalls after 20 minutes inactivity I have a Windows Forms application that makes async calls to Web Services... When I run the application, initially everything is fine. If I leave the app running for about 20 minutes and then make a web service call, I get no response. I check the web server logs, but it appears the call never made it there. If I close the app, reopen it, call the web service, everything is fine again. Anyone run into this type of situation? Thanks! Tag: "Frames" in windows forms Tag: 72452
  - 12
    - Design view disappears Any help would be greatly appreciated ;- When you create a custom component and inherit (standard) from System.Windows.forms.Usercontrol, VS.NET shows a nice workarea in Design where you can place all kinds of winform controls like a textbox, button, etc But when I try to inherit directly from Panel, the area in Design disappears and is replaced by screen which says "to add components to your class.... click here to switch to code view" I can't use this to make custom panels In short When I inherit from Panel, I lose the design view in VS.NET. And when I lose the design view, I can't just add controls visually because it just doesn't work anymore Please, if you can help, mail me Or if you think I should tackle this another way, tell me so Thanks Ernst Wolthaus Tag: "Frames" in windows forms Tag: 72441
  - 13
    - Button Image not showing in design mode Hi, i have a button derived from Forms.Button with an associated ImageList. The button works fine at runtime, but in design mode, the first time i put it onto a form and set its ImageList and ImageIndex properties, the image doesn't show. If i do a build, or close/reopen the form, the image is there, and even changes when i change the image index. As i said before, works fine at runtime, even in designer after rebuild, but not the first time. Any ideas ps: the button is owner drawn, and i have a member variable of type Image, which refers the current image from the imagelist, and that's the image i draw on the button. I've also declared the ImageIndex property with New, to be able to reset the image my variabile refers on index change, code posted below. Maybe that has something to do with it not showing up in the designer THE FIRST TIME, but i can't figure out why, since it works at runtime and designer too after rebuild Public Shadows Property ImageIndex() As Intege Ge Return MyBase.ImageInde End Ge Set(ByVal Value As Integer MyBase.ImageIndex = Valu If Not MyBase.Image Is Nothing The icon = MyBase.Imag MyBase.Invalidate( End I End Se End Property Tag: "Frames" in windows forms Tag: 72436
  - 14
    - who on earth has done a complete win32 api wrapper for C#? looking for a comprehensive version of most common API functions used in .Net, sample below: =============================================================== using System; using System.Runtime.InteropServices; namespace ApiWrapper { /// <summary> /// Summary description for Win32API. /// Date: 5 March, 2004 /// </summary> public class Win32API { /// <summary> /// The SendMessage function sends the specified message to a window or windows. /// The function calls the window procedure for the specified window and does not return /// until the window procedure has processed the message. The PostMessage function, in contrast, /// posts a message to a thread's message queue and returns immediately. /// </summary> /// <param name="WindowHandle">hWnd: Identifies the window whose window procedure is to receive /// the message. Two values have special meanings: /// HWND_BROADCAST /// The message is posted to all top-level windows in the system, including disabled or /// invisible unowned windows, overlapped windows, and pop-up windows. /// The message is not posted to child windows. /// NULL /// The function behaves like a call to PostThreadMessage with the dwThreadId parameter set /// to the identifier of the current thread.</param> /// <param name="Command">wMsg: Message to send</param> /// <param name="Data">wParam: Specifies additional message-specific information.</param> /// <param name="ID">lParam: Specifies additional message-specific information.</param> /// <returns>The return value specifies the result of the message processing and depends on the message sent.</returns> [DllImport("user32.dll", EntryPoint="SendMessage")] public static extern int SendMessage(int WindowHandle, int Command, int Data, int ID); /// <summary> /// The PostMessage function places (posts) a message in the message queue associated with the /// thread that created the specified window and then returns without waiting for the thread /// to process the message. /// </summary> /// <param name="WindowHandle">hWnd: Identifies the window whose window procedure is to receive /// the message. Two values have special meanings: /// HWND_BROADCAST /// The message is posted to all top-level windows in the system, including disabled or /// invisible unowned windows, overlapped windows, and pop-up windows. /// The message is not posted to child windows. /// NULL /// The function behaves like a call to PostThreadMessage with the dwThreadId parameter set /// to the identifier of the current thread.</param> /// <param name="Command">wMsg: Message to send</param> /// <param name="Data">wParam: Specifies additional message-specific information.</param> /// <param name="ID">lParam: Specifies additional message-specific information.</param> /// <returns>The return value specifies the result of the message processing and depends on the message sent.</returns> [DllImport("user32.dll", EntryPoint="PostMessage")] public static extern int PostMessage(int WindowHandle, int Command, int Data, int ID); /// <summary> /// The FindWindow function retrieves the handle to the top-level window whose class name and /// window name match the specified strings. This function does not search child windows. /// </summary> /// <param name="ClassName"></param> /// <param name="WindowName"></param> /// <returns></returns> [DllImport("user32.dll", EntryPoint="FindWindow")] public static extern int FindWindow(string ClassName, string WindowName); [System.Runtime.InteropServices.DllImportAttribute("gdi32.dll")] public static extern bool BitBlt( IntPtr hdcDest, // handle to destination DC int nXDest, // x-coord of destination upper-left corner int nYDest, // y-coord of destination upper-left corner int nWidth, // width of destination rectangle int nHeight, // height of destination rectangle IntPtr hdcSrc, // handle to source DC int nXSrc, // x-coordinate of source upper-left corner int nYSrc, // y-coordinate of source upper-left corner System.Int32 dwRop // raster operation code ); } } =============================================================== TIA - sci Tag: "Frames" in windows forms Tag: 72435
  - 15
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  - 16
    - how to: application wide keyboard hook hi all, problem: i have several controls on my form which can get focus, like buttons/combos. i have to catch keyboard events for special keys like Alt-F1 on my form, for that, i simply implemented keydown event handler on my form control, but when some other control has focus, all keypress events are generated on that control. Q: how can i implement an application wide keypress event handler, so that if Alt-F1 is press on any control (or on any dialogue of the app), my single event handler can grab it? TIA - sci Tag: "Frames" in windows forms Tag: 72433
  - 17
    - ObjectDisposedException when creating a Wizard interface H I have a series of forms that are to be utilized in a wizard type interface. From each of these forms the user can either click a back button, or a row in a datagrid to move forward in the wizard. Clicking either the back or "forward" button raises a custom event that I've created in order to signal to the controlling form to either show the previous or next form in the sequence. Once this event is raised from the form, the close event is called. (This forms aren't show modally) This method works fine, but if I go back and forth a few times without actually completing the sequence, I get an ObjectDisposedException thrown. It seems to happen randomly and alway because it is trying to access the DataGrid after I've closed the form. I've checked all my code and don't see any operations being executed on the form after I call its close method. (I recreate the forms each time I want to show them!) I've tried programming the event handlers using both the WithEvent and dynamic AddHandlers methods and I get the same reponse Private Sub initTimberTypeForm( currentStockCode = Nothin currentStockCode = New StockCodeBuilde currentStockCode.ConnectionString = currentConfig.ConnectionStrin timberTypeForm = New TypeFor timberTypeForm.CurrentConfiguration = currentConfi timberTypeForm.CurrentStockCodeBuilder = currentStockCod 'AddHandler timberTypeForm.UserAction, AddressOf timberTypeUserActio End Su Private Sub showTimberTypeForm( initTimberTypeForm( timberTypeForm.LoadGrid( timberTypeForm.Show( End Su Private Sub timberTypeUserAction(ByVal sender As Object, ByVal e As CodeBuildEventArgs) Handles timberTypeForm.UserActio If Not e.GoBack The showTimberGradePrefixForm( Els showShiftForm( End I End Su ' Code on wizard for Private Sub backButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles backButton.Clic RaiseEvent UserAction(Me, New CodeBuildEventArgs(True) Close( End Su Private Sub timberGrid_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles timberGrid.MouseDow Dim pt As New Point(e.X, e.Y Dim hit As DataGrid.HitTestInf hit = timberGrid.HitTest(pt If hit.Type = DataGrid.HitTestType.Cell The timberGrid.CurrentCell = New DataGridCell(hit.Row, hit.Column timberGrid.Select(hit.Row currentStockCode_.TimberTypeID = timberGrid.Item(hit.Row, 0 currentStockCode_.TimberTypeCode = timberGrid.Item(hit.Row, 1 RaiseEvent UserAction(Me, New CodeBuildEventArgs(False) Close( End I End Su Can anybody give me some idea of where I may be doing something wrong Many thanks in advance Tag: "Frames" in windows forms Tag: 72430
  - 18
    - Which thread was a control created on? Is there a way in .NET framework to check which thread a particular windows forms control was created on? I want to check that a particular control was created on the same thread as my main form, from another arbitrary thread. I know the "InvokeRequired" property, but I need to marshall the control as a parameter to a method on the main form's thread, and I want to check the thread is OK before I marshall it using myMainForm.Invoke() - as this seems to hang if the control is created on the "wrong" thread. Tag: "Frames" in windows forms Tag: 72426
  - 19
    - SQLDMO Library where can i find this in .Net?? Cheers, Craig Tag: "Frames" in windows forms Tag: 72424
  - 20
    - KeyDown Event is not catching Function & Tab key Hi All, why keydown event is functioning properly as it was in VB6.? I have the following declaration. It is catchig Alphanumeric Keys but not the function and tab key. following is the syntax; Private Sub cmb1_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles cmb1.KeyDown If e.KeyCode = Keys.Tab Then messagebox.show "Tab is pressed" End If End Sub any reason? thanks in advance. Ansai Tag: "Frames" in windows forms Tag: 72421
  - 21
    - Specified cast is not valid I have a CheckedListBox control on a form. Whenever I want to check the item in the CheckedListBox with the following code, it give me an error message 'Specified cast is not valid'. why chklstType.Items.Add("abc", True) Tag: "Frames" in windows forms Tag: 72416
  - 22
    - What is the equivalent of TextBox.Locked property of VB6 in Win Forms? hi all I want to lock text box so user can not edit the contents but user may copy the contents... This is done in vb6 by setting Locked property . But it is not avaiable in winforms... any workaround? Thanks in advance Ansari Tag: "Frames" in windows forms Tag: 72409
  - 23
    - missing button image Hi all, I had put different images on 6 command button controls on the form(windows form). I did this by clicking on image property of the command button, then selecting a bmp/gif/jpeg file from local HDD. But when i copy my form to a different PC and open it. The command buttons does not display those images. can anyone please help me out. any usage please explain in detail. Thanks and Regards, Sanjeev K B Tag: "Frames" in windows forms Tag: 72408
  - 24
    - Preventing MDI parent form autoscroll Hi , Is there any method to prevent auto srolling of MDI parent form? Autoscroll is not working. Regards Shabeer Tag: "Frames" in windows forms Tag: 72407
  - 25
    - CodeDom and ClickOnce not compatible? Hi Gurus I have a windows application that is deployed via ClickOnce (No Touch Deployment). It uses the CodeDom to create an assembly on the fly. The problem is that this assembly can't find it's referenced assemblies (IPSTypes.dll in the example below). It works fine when run locally but fails when run using clickOnce. I was hoping that "IO.Directory.GetCurrentDirectory()" would return the path to the dependent assembly but it actually returns the path to the desktop!! Any help gratefully appreciated. Please send any replies to Mark.Evans@REMOVETHISstats.govt.nz Imports System Imports System.CodeDom Imports System.CodeDom.Compiler Imports System.Reflection Module Module1 Sub Main() Dim provider As Microsoft.VisualBasic.VBCodeProvider Dim compiler As System.CodeDom.Compiler.ICodeCompiler Dim params As System.CodeDom.Compiler.CompilerParameters Dim results As System.CodeDom.Compiler.CompilerResults Dim stbErrors As New System.Text.StringBuilder Dim asmRule As System.Reflection.Assembly ' create simple test class as a string Dim strFunction As String strFunction = strFunction & " Namespace TestNamespace " & vbCrLf strFunction = strFunction & " Public Class TestClass " & vbCrLf strFunction = strFunction & " Public Function TestFunction() As String " & vbCrLf strFunction = strFunction & " Return ""blah"" " & vbCrLf strFunction = strFunction & " End Function " & vbCrLf strFunction = strFunction & " End Class " & vbCrLf strFunction = strFunction & " End Namespace " params = New System.CodeDom.Compiler.CompilerParameters params.GenerateInMemory = True 'Assembly is created in memory params.GenerateExecutable = False params.TreatWarningsAsErrors = False params.WarningLevel = 4 Dim appDom As AppDomain = AppDomain.CreateDomain("RuleDomain") Dim strDllPath As String = String.Format("{0}\IPSTypes.dll", IO.Directory.GetCurrentDirectory()) params.ReferencedAssemblies.Add(strDllPath) provider = New Microsoft.VisualBasic.VBCodeProvider compiler = provider.CreateCompiler results = compiler.CompileAssemblyFromSource(params, strFunction) asmRule = results.CompiledAssembly End Sub End Module Tag: "Frames" in windows forms Tag: 72405

Hi,

Just wondering if there is any sort of concept of "frames", as in HTML in
windows forms, where different forms can be loaded into different frames.

So one of the frames might be loaded with different forms at different
times.

Or are user controls what one would use to accomplish this sort of thing.

Thanks.

Top

Re: "Frames" in windows forms by hirf-spam-me-here

hirf-spam-me-here
Tue Jun 01 13:11:32 CDT 2004

* "Marina" <someone@nospam.com> scripsit:
> Just wondering if there is any sort of concept of "frames", as in HTML in
> windows forms, where different forms can be loaded into different frames.
>
> So one of the frames might be loaded with different forms at different
> times.
>
> Or are user controls what one would use to accomplish this sort of thing.

UserControls separated by splitter controls are IMO the way to go.

--
Herfried K. Wagner [MVP]
<URL:http://dotnet.mvps.org/>

Top

Re: "Frames" in windows forms by Bob

Bob
Tue Jun 01 15:06:18 CDT 2004

Panels can provide the frames, Splitters provide the movable borders.

--
Bob Powell [MVP]
Visual C#, System.Drawing

Image transition effects, snap-to-grid and Layered Windows are
all discussed in May's edition of Well Formed for C# or VB programmers
http://www.bobpowell.net/currentissue.htm

Answer those GDI+ questions with the GDI+ FAQ
http://www.bobpowell.net/gdiplus_faq.htm

The GDI+ FAQ RSS feed: http://www.bobpowell.net/faqfeed.xml
Windows Forms Tips and Tricks RSS: http://www.bobpowell.net/tipstricks.xml
Bob's Blog: http://bobpowelldotnet.blogspot.com/atom.xml

"Marina" <someone@nospam.com> wrote in message
news:eZfUYd$REHA.3344@TK2MSFTNGP12.phx.gbl...
> Hi,
>
> Just wondering if there is any sort of concept of "frames", as in HTML in
> windows forms, where different forms can be loaded into different frames.
>
> So one of the frames might be loaded with different forms at different
> times.
>
> Or are user controls what one would use to accomplish this sort of thing.
>
> Thanks.
>
>

Top