Sharing stuff amoung forms

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- Previous
  - 1
    - User Interface Process Hi I'm using the UIP Application Block and I'm having difficulties when using a view that's modal and wanting the view to close when navigation is passed to another view I'm starting a new task via OnStartTask which luanches a set of forms we are using as a wizard to guide users through a use case. The first form opens correctly as a modal form but when I navigate to the second form via Navigate() the first form stays open. If I choose modal = false then the first form closes OK but I must have a modal form when launching the first form The UIP documentation within the "Creating the Views Section" states that if openModal is set to true, then stayOpen should be set to false but this does not seem to work. Any ideas would be appreciated Regard Mike Tag: Sharing stuff amoung forms Tag: 71504
  - 2
    - problem with windows caption bar text... hi there, i have come across a problem with the caption bar in my vb.NET windows application. the main form is being used as a MDI form, which has an english caption, but one of my forms has a eastern european (macedonian) title. When the 2nd form is loaded, the MDI client shows the english caption, but the macedonian caption in brackets is shown as ?????? ?????? any help here? thanks, P. Tag: Sharing stuff amoung forms Tag: 71491
  - 3
    - Bring To Front of a Process/Other application Hi, I want my application to bring another application to the Front. I thought best way to do this was by the Process-model: Dim c As Process = Process.GetCurrentProcess() Dim p As Process For Each p In Process.GetProcessesByName("EXTRA") If Left(p.MainWindowTitle, 4) = "Appl" Then 'Here I should be able to Bring the Process to the Front!!! Exit Function End If Next p Does anybody nows how to do this? Or another solution? Thanks! Pieter Tag: Sharing stuff amoung forms Tag: 71484
  - 4
    - How to capture current cell address in a datagrid Hi How to capture the current cell address in a datagrid on vb.net ? In which event? I just want to store the current cell address in a global variable. This global variable should get an update everytime the user changes the control in the datagrid to a different cell which becomes current cell Note: I found that most other queries here talked of currentcell as a property. But for the datagrid name i have created, i do not find any such thing as eg. datagrid1.currentcell. In fact, for datagrid1, i dont find events such as currentcellchanged etc that all of you seem to be talking of Since i am literally a novice, i would appreciate if you can explain in detail where i am going wrong and how to go abt it in the right way Regards Giri Tag: Sharing stuff amoung forms Tag: 71481
  - 5
    - Free Extensions Library Simplify application development with this free .NET framework extensions, which includes: + Straight-forward data access with in-memory databases: No need to manage connections, adapters, commands etc. + Soft XML rules + Extended controls library: Data control, progress bars, image buttons, explorer + Multilingual support with a single line of code + Intuitive data binding + Samples and utilities included Fully documented. Requires .NET framework 1.1 or later. You will be allowed to use the libraries in any application - private or commercial, and distribute them as part of your application, royalty-free. E-mail me for you free copy: ori@s-e-a.com.au Your acceptance of the license agreement will be required. Thank you -- Ori Millo Solutions Consultant SEA Software Ever After http://www.s-e-a.com.au Tag: Sharing stuff amoung forms Tag: 71480
  - 6
    - Changing Application color to follow Change of System Color Hi Folks, I wrote a custom control with custom drawing. What I want to detect is when user change their system-wide color scheme, the custom control reflects that change as well. Does anybody know how to do this? -toni Tag: Sharing stuff amoung forms Tag: 71479
  - 7
    - CurrencyManager.AddNew - Cancel ?? Hey Gang, I posted this on .DataBinding, but that is a dead group (no activity) so I retracted it. I am actively overcoming my fears and prejudices toward DataBindinding, and have come across another issue. My setup is like this: 3 textboxes bound to a table in the dataset (tbl1). A listbox that shows all records in the table. 3 more textboxes bound to tbl2 in the same dataset, the child table of tbl1. I have 2 currency managers, one for the Parent, and one for the Child tables. The AddNew button for the child calls cmChild.AddNew I need to havdle the case where a user then clicks another record in the listbox. I get an error thrown about tbl2 fields not allowing nulls. This occurs before any events on the CurrencyManager, and After my Listbox's Click event. How would I handle this (what event), and do I just call 'CancelCurrentEdit'? Thanks! Kevin Tag: Sharing stuff amoung forms Tag: 71476
  - 8
    - ActiveX Control property missing I've placed an ActiveX control on my Form and that all works OK. The one problem I'm having is that the property Location is needed, but when it's converted to a windows forms control, the Location property is now meant for the location on the form. How can I use the property from the ActiveX control? Lance Tag: Sharing stuff amoung forms Tag: 71471
  - 9
    - Populating ListBox with Attributes from XML Hello I have attribute-based XML that I have put into a DataSet. Ultimately, I want to dynamically put items in the list box where DataMember equals an attribute in the XML For example <Data><Classmates><Classmate Name="Sam" ID="2" /><Classmate Name="Sue" ID="4"/></Classmates></Data I want two items in the ListBox in this case: Sam and Sue What is the best way to accomplish this Thanks in advance -Sarah Tag: Sharing stuff amoung forms Tag: 71470
  - 10
    - Webclient and Gzip Hey, I'm trying to set up a webclient to download a couple of DLL's and an .exe file. I know my server will be set up properly to accept gzip request and deliver the content gzipped... I know how to add the accept-encoding header to the webclient. What I don't know is if i have to decode the content coming back or if the webclient takes care of that for me... thanks in advance, Patrice. Tag: Sharing stuff amoung forms Tag: 71467
  - 11
    - Datagrid Automatic Format Hi, I am populating datagrid with user defined queries, so I do not know, what table(s) the user will query. I want to automatically resize the column width as wide as (at least) the column name is. I didn't find any solution within the knowledge base for that problem. Any Ideas welcome ... thx Klaus Tag: Sharing stuff amoung forms Tag: 71465
  - 12
    - Richtextbox Find problem Hi, The following function is a sample from the online documentation for VB.NET ---code--- Public Function FindMyText(ByVal searchText As String, ByVal searchStart As Integer, ByVal searchEnd As Integer) As Integer ' Initialize the return value to false by default. Dim returnValue As Integer = -1 ' Ensure that a search string and a valid starting point are specified. If searchText.Length > 0 And searchStart >= 0 Then ' Ensure that a valid ending value is provided. If searchEnd > searchStart Or searchEnd = -1 Then ' Obtain the location of the search string in richTextBox1. Dim indexToText As Integer = RichTextBox1.Find(searchText, searchStart, searchEnd, RichTextBoxFinds.WholeWord) ' Determine whether the text was found in richTextBox1. If indexToText >= 0 Then ' Return the index to the specified search text. returnValue = indexToText End If End If End If Return returnValue End Function ---code end--- the member function .Find gets a start parameter (int) and an end parameter, the documentation states, that if the end parameter is set to -1, the find is done backwards. It does not do it that way, or did I misunderstand ? I want to automatically select complete words that were entered, using the KeyUp Event and looking for the previous blank or CRLF (which should be the character preceeding any word. The start parameter I do set to RichTextBox1.SelectionStart -1 (remeber, the last character entered was a blank, which triggerd the event, so the last word entered ends at SelectionStart -1. Can anybody please hlep me in this ? thx Klaus Tag: Sharing stuff amoung forms Tag: 71464
  - 13
    - Getting Strongly Named Flash Shockwave dlls for use with No-Touch Deployment Smart Client I am attempting to a Windows Forms application running as a Smart Client (e.g. No-Touch deployment). I found that unless I strongly named my application assembly, IEexec used by No-Touch deployment would load multiple copies of application in the download assembly cache (which would cause InvalidTypeExceptions in my application). However, my application has a Flash movie in it. The Shockwave dll's I have are not strongly named so I get the following error: "Unable to emit assembly: Referenced assembly 'AxInterop.ShockwaveFlashObjects' does not have a strong name" Strongly named assemblies cannot contain non-strongly named dll's. Does anyone know how to get or make strongly named versions of AxInterop.ShockwaveFlashObjects and Interop.ShockwaveFlashObjects? I tried using the tlbimp.exe utility, but it gives the following error: TlbImp error: The input file AxInterop.ShockwaveFlashObjects.dll' is not a valid type library. I tried using tlbexp to make a type library, but I couldn't use tlbimp to convert it back after that. Tag: Sharing stuff amoung forms Tag: 71463
  - 14
    - Richtextbox.find Method does not work as described, or am I stupid ? Hi The following function is a sample from the online documentation for VB.NE ---code-- Public Function FindMyText(ByVal searchText As String, ByVal searchStart As Integer, ByVal searchEnd As Integer) As Intege ' Initialize the return value to false by default Dim returnValue As Integer = - ' Ensure that a search string and a valid starting point are specified If searchText.Length > 0 And searchStart >= 0 The ' Ensure that a valid ending value is provided If searchEnd > searchStart Or searchEnd = -1 The ' Obtain the location of the search string in richTextBox1 Dim indexToText As Integer = RichTextBox1.Find(searchText, searchStart, searchEnd, RichTextBoxFinds.WholeWord ' Determine whether the text was found in richTextBox1 If indexToText >= 0 The ' Return the index to the specified search text returnValue = indexToTex End I End I End I Return returnValu End Functio ---code end-- the member function .Find gets a start parameter (int) and an end parameter, the documentation states, that if the end parameter is set to -1, the find is done backwards It does not do it that way, or did I misunderstand I want to automatically select complete words that were entered, using the KeyUp Event and looking for the previous blank or CRLF (which should be the character preceeding any word The start parameter I do set to RichTextBox1.SelectionStart -1 (remeber, the last character entered was a blank, which triggerd the event, so the last word entered ends at SelectionStart -1 Can anybody please hlep me in this th Klau RichTextBox1.Find(searchText, searchStart, searchEnd, RichTextBoxFinds.WholeWord) Tag: Sharing stuff amoung forms Tag: 71462
  - 15
    - UI Standards for .NET Hi, I am looking for any UI standards for .NET applications. I'm concerned with both Windows and web apps (we have an application suite that will be available on both platforms). Any pointers would be greatly appreciated. TIA, Derrick Tag: Sharing stuff amoung forms Tag: 71461
  - 16
    - MeasureCharacterRanges inconsistent Hi If I make subsequent calls to MeasureCharacterRanges, specifying a rectangleF already determined by MeasureCharacterRanges, and the same Font and StringFormat, shouldn't it repeatedly determine the same bounds Example Dim f As New Font("Arial", 10 Dim sf As StringFormat = StringFormat.GenericDefaul Dim s As String = "test string Dim r As RectangleF =r.FromLTRB(100, 100, 200, 200 Dim g As Graphics = Me.CreateGraphic Dim ranges As CharacterRange() = {New CharacterRange(0, s.Length) Dim regions() As Regio sf.SetMeasurableCharacterRanges(ranges regions = g.MeasureCharacterRanges(s, f, r, sf r = regions(0).GetBounds(g Debug.WriteLine(r.ToString regions = g.MeasureCharacterRanges(s, f, r, sf r = regions(0).GetBounds(g Debug.WriteLine(r.ToString regions = g.MeasureCharacterRanges(s, f, r, sf r = regions(0).GetBounds(g Debug.WriteLine(r.ToString This code outputs {X=102,Y=101,Width=59,Height=15 {X=104,Y=102,Width=52,Height=14 {X=106,Y=103,Width=45,Height=13 My problem is this. If the first call to MeasureCharacterRanges returns proper bounds, then I should reasonably expect that subsequent calls would agree! My problem is that what I actually do in my project is call DrawString after a single call to MeasureCharacterRanges. Unfortunately, it too does not agree with the already determined bounds, and wraps my text unexpectedly Does anyone have the answer to this Thanks Brett. Tag: Sharing stuff amoung forms Tag: 71460
  - 17
    - InvalidOperationException (The object is currently in use elsewhere) Hello. I ´ve got a picturebox that fills the whole screen and displays a "background-" image. Using the picturebox Graphics object, the user can draw lines, circles and so on onto that image. But unfortunately I sometimes get an exception like this: System.InvalidOperationExceptionSystem.InvalidOperationException: The object is currently in use elsewhere at System.Drawing.Graphics.EndContainer(GraphicsContainer container) at System.Windows.Forms.DibGraphicsBufferManager.ReleaseBuffer(GraphicsBuffer buffer) at System.Windows.Forms.GraphicsBuffer.Dispose() at System.Windows.Forms.Control.WmPaint(Message& m) at System.Windows.Forms.Control.WndProc(Message& m) at System.Windows.Forms.ControlNativeWindow.OnMessage(Message& m) at System.Windows.Forms.ControlNativeWindow.WndProc(Message& m) at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam) I am using a GraphicsPath to represent the different shapes drawn by the user. I´ve now tried several hours to get rid of this error but no chance. Has anyone an idea? Thanks for help! Greetings, Tim. Tag: Sharing stuff amoung forms Tag: 71456
  - 18
    - How to get normal state size of a maximized form? Is there a way to get a normal state size of a form when it is in maximized or minimized state? Tag: Sharing stuff amoung forms Tag: 71450
  - 19
    - Customizing Label control Using VB.NET - I have a label on a form. The label.Text is "Test Label". Is there a way to make the word "Test" bold and the word "Label" not bold? Overriding OnPaint worked, but I am having trouble with the rendering out of the text. Can this be done? Thanks, Jason. Tag: Sharing stuff amoung forms Tag: 71446
  - 20
    - What is the best way to guarantee data is saved? I have a grid and a "save" button to persist data to a local DataSet XML file, but am concerned that users may modify data and then attempt to exit the application without having committed their changes. What is the best way to handle this? Tag: Sharing stuff amoung forms Tag: 71442
  - 21
    - Treeview Flickering Hi, My treeview is flickering whenever I change the text property of a node. I was searching the newsgroups on how to resolve this problem, and found the following solution: Inherited from a treeview and added the following code to its constructor: this.SetStyle(ControlStyles.UserPaint | ControlStyles.AllPaintingInWmPaint | ControlStyles.DoubleBuffer | ControlStyles.ResizeRedraw, true ); However, when I try this nothing at all is drawn! What am i missing? I am using C#.NET with VS2003 Thanks for helping me out! Tomas Tag: Sharing stuff amoung forms Tag: 71431
  - 22
    - Compatibility with various Windows Media Player versions Hi to all, I'm developing a C# windows form project that will use the Windows Media Player 6.4 ocx (via the automatically generated .NET Wrapper). My question is...when I will deploy the application on many different pc, will she function also if the target pc(s) have a more recent version of Windows Media Player (for example the 9). Thanks a lot Dev Tag: Sharing stuff amoung forms Tag: 71430
  - 23
    - printdialog extra copies when pointing to framework 1.1 from 1.0 I ran into a framework 1.0 printdialog problem where you always get 1 copy, no matter how many copies of print are requested. I heard that there was a fix in framework 1.1 for this problem. I used the 'supportedRuntime version="v1.1.4322' tag in my app.config file to point to framework 1.1 from my vb.net application, which was assembled under framework 1.0. I then started getting the number of copies squared. I you enter 2 copies, you get 4. If you enter 3 copies, then you get 9 copies and so on. I'm pretty new to vb.net, so does anyone have any ideas about this problem? I have both .net framwork 1.0 and 1.1 installed on my development PC. Thanks. Tag: Sharing stuff amoung forms Tag: 71425
  - 24
    - datagrid sort order i have a win form w/ a datagrid inside while the app is running many instances of this form r created and closed how can i ensure that the sort user used last time is kept until the whole app is closed TIA Tag: Sharing stuff amoung forms Tag: 71420
  - 25
    - Datagrid CurrentCellChanged Event I'm using the datagrid CurrentCellChanged event to track the last selected cell for doing checks after it is updated. The problem is that occasionally I need to modify the old cell, which causes another CurrentCellChanged and a refocus to the old cell I'm hoping for a clean solutions such as.. Is there a way to modify a non current cell without causing a CurrentCellChanged event to trigger Is there a way to selectively ignore an event (supress its trigger) Thanks in advanc Steven W Tag: Sharing stuff amoung forms Tag: 71413
- Next
  - 1
    - TreeView onPaint problem I am writing a small program just to test mirroring on TreeView control in C#. Along with that i wanted to add some more functionality in its "onPaint" override. But this override is not called. As i read over few websites.. this is a bug in TreeView in .Net. Is there any proper work around? Tag: Sharing stuff amoung forms Tag: 71409
  - 2
    - Flicker and dispose Hi all Got a problem with my application. Whenever I close a form that's been shown through ShowDialog() and go back to the parent form, whatever is running behind my app (Usually VS), appears very briefly - and creates a flickering effect I've enabled double buffering on all my forms, and it has improved it somewhat, but it still occurs The problem I think is that I am calling Dispose() on each form in the Closed event. This is because we've found that DotNet often doesn't garbage collect instances of forms if they aren't explicitly disposed, so we call this.Dispose(true) GC.SuppressFinalize(this) in the Closed event. If we don't do this our app quickly starts chewing up memory and on low-end machines causes thrashing. I tried not calling dispose on some forms and the flickering disappeared So the question is, has anyone had this problem or does anyone have any ideas as to how to reduce the flickering and still allow the GC to collect the forms correctly Thanks in advance Simon Tag: Sharing stuff amoung forms Tag: 71400
  - 3
    - Windows Forms MyBase.New() constructor. I am developing an Outlook Addin. I have tracked a problem down to MyBase.New() in the Windows Form class constructor The situation: Outlook with Word as the default email editor. Clicking a toolbar button in Outlook email inspector displays my Windows Form. (Working when Outlook is default email editor When Word is being used as the default email editor the form is not displayed although the button click event is called Can anyone shed some light as to why this is the case and if there may be some way to overcome this problem Tag: Sharing stuff amoung forms Tag: 71395
  - 4
    - Programming Methods - Separating UI & Data I have a general "programming principles" question on a project I'm currently working on. I figured I'd take a bit more of an object-oriented approach than usual since the application is pretty big. I thought that if I created one project, housed all of the classes I needed to manage data, and then created another class library project to hold all of my custom controls, I'd be set. Just reference the control project, use classes to keep track of controls and event handling for those controls, and voila. Display and data are separate entities. However, it was OK for much of the first few forms and controls. The controls were pretty transparent and did what the management classes told them to do and threw events back at the management classes. But then the inevitable "little things" started creeping in and now I have some controls processing data, events flying every which way between projects, etc. Now if I were to diagram the structure of how this works (and it does work... in some twisted way, but I don't think I could live with myself as a programmer if I left the code like this) it would look like a spider web built by a spider on crack. For those who have used this approach in it's correct form (no pun intended), are there any diagrams or articles you can throw my way that might help? Do you create arrays on the management classes side and keep track of instances of controls in the arrays, or just poll controls via For Each loops, events, etc.? Best way to manage controls, controls within controls, avoid reflection to find controls? Thanks -- any material/advice much appreciated. Brandon Tag: Sharing stuff amoung forms Tag: 71394
  - 5
    - uploading data I was wondering if anybody could shed some light on this scenario, maybe there is white paper somewhere ? I have a vb.net app that runs on a few machines storing data in a local access db, but if they are connected to web I want them to be able to upload there data and pull down any updates that they do. whats the best way of going about this? Thanks Neil Tag: Sharing stuff amoung forms Tag: 71390
  - 6
    - ComboBox and Dataset ? Hi! How I can set ComboBox like DBLookUpComboBox in Delphi ? Plese help me Thank's Tag: Sharing stuff amoung forms Tag: 71389
  - 7
    - Intelisense descriptions Hi I am writing classes that I can wrap and give to others in the team. What would be nice is to be able to see the method description and its parameter description in VS at design time...same are what you see when are using components supplied by MS Any help would be great...thanks in advance. Tag: Sharing stuff amoung forms Tag: 71387
  - 8
    - web Image to Picture Box This is a multi-part message in MIME format. ------=_NextPart_000_0008_01C43565.7102E280 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable All - How can I get an image from the web into a picturebox on a form? E.g. If I have an image at = http://www.mywebsite.com/cgi-bin/sty?RANGE=3D1580%40DAL&STYLE=3Dbest and = want to get it into a picture box on my form. Thanks, Brian P. Hammer ------=_NextPart_000_0008_01C43565.7102E280 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 - How can I get an image from the web into a = picturebox on a form?</FONT></DIV> <DIV><FONT face=3DArial></FONT> </DIV> <DIV><FONT face=3DArial>E.g.</FONT></DIV> <DIV><FONT face=3DArial>If I have an image at <A=20 href=3D"http://www.mywebsite.com/cgi-bin/sty?RANGE=3D1580%40DAL&STYLE= =3Dbest">http://www.mywebsite.com/cgi-bin/sty?RANGE=3D1580%40DAL&STYL= E=3Dbest</A> and=20 want to get it into a picture box on my form.</FONT></DIV> <DIV><FONT face=3DArial><BR>Thanks,<BR>Brian P. = Hammer</FONT></DIV></BODY></HTML> ------=_NextPart_000_0008_01C43565.7102E280-- Tag: Sharing stuff amoung forms Tag: 71386
  - 9
    - Find a .NET control ? I posted this in Microsoft.Public.dotnet.faqs but did not get any answers. Maybe I'll have more luck here, so please bear with me... Does anyone know where I can find an analog clock control for c#? Something along the lines of the clock in Longhorn would be great, but I would also settle for a nice looking digital clock. Thanks for your time... Tag: Sharing stuff amoung forms Tag: 71380
  - 10
    - Application and User Options This is a multi-part message in MIME format. ------=_NextPart_000_0008_01C4351F.8A0EF1B0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable All - What is the best way to handle options available to the user? Such = as menu speeds, fonts and colors. Store them in a database of XML file = or others. Any links to how to do it would be great. Thanks,=20 Brian P. Hammer ------=_NextPart_000_0008_01C4351F.8A0EF1B0 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 - What is the best way to handle options = available to=20 the user? Such as menu speeds, fonts and colors.  Store them in a = database=20 of XML file or others.  Any links to how to do it would be=20 great.</FONT></DIV> <DIV><FONT face=3DArial></FONT> </DIV> <DIV><FONT face=3DArial>Thanks,</FONT><FONT face=3DArial> <BR>Brian P.=20 Hammer</FONT></DIV></BODY></HTML> ------=_NextPart_000_0008_01C4351F.8A0EF1B0-- Tag: Sharing stuff amoung forms Tag: 71377
  - 11
    - Question about use of Hide method Is this a proper technique or just a newbie hack? I was looking for alternatives to globals I have a project with a main form I add a form X. I add a property Y and a button to X. I call X.ShowDialog() from the main form In form X, I press the button which sets the value of the property Y and then calls Me.Hide() I then retrieve the value of the property Y from X and then call X.Dispose in the main form (I came up with this myself. I was not aware that Hide could return control to the calling form and I haven't found anything explicitly relating to this in the documentation yet. Tag: Sharing stuff amoung forms Tag: 71376
  - 12
    - general windowsforms coding question... hi, i've just got a general question which may relate to a problem i'm having in my application. I have a about 5 forms, also a module with Sub Main() which loads the forms, and at then i have "application.run(form1)" Im not sure, but when i load my attached helpfile, it always loads behind the application screen, when it should be in front. Is this the correct way to show the main form window? thanks, Tag: Sharing stuff amoung forms Tag: 71372
  - 13
    - Problem with attaching help file Hi there, i have a strange problem in where i have attached a help file using the helpProvider control, and when i press F1, it loads the help, but puts it behind the actual application form. Then when i click between the help and application window, it switches between them eratically and i cant figure out why its doing this? I also created a new blank form with only help attached and cant replicate it. All the form properties are set as standard also. Any ideas? thanks, Paul. Tag: Sharing stuff amoung forms Tag: 71371
  - 14
    - Having an optional variable in the constructor causes error Hi, I am trying to pass the name of a grid I create in a form through to the grid control class I have created. I am doing this so that I can setup the grid according to the settings I store in a database. The grid I created inherits the Datagrid. I tried mybase.name but that doesn't work I just get an empty string back. My second Idea was to include an optional variable in the constructor. Just running the code this works however I do get an error message saying: 'Public Sub New([Name As String = ""])' and 'Public Sub New()' cannot overload each other because they differ only by optional parameters. The code I am using is down here: Option Strict Off Option Explicit On Imports Microsoft.VisualBasic Imports System Imports System.Data Imports System.Drawing Imports System.Windows.Forms Public Class DGrid Inherits DataGrid #Region " Windows Form Designer generated code " Public Sub New(Optional ByVal Name As String = "") MyBase.New() If Not Name = "" Then Me.Name = Name 'This call is required by the Windows Form Designer. InitializeComponent() MsgBox(Name) LoadDataset() 'setColumns() 'Add any initialization after the InitializeComponent() call End Sub Any suggestion please... please keep it simple as I am still to be considered a newbie ;))) Thanks David J Tag: Sharing stuff amoung forms Tag: 71366
  - 15
    - RichTextBox/HTML Hello, can somebody please recommend a decent and free RichTextBox WinForm control that allows HTML access to its contents? I'm looking for something similar to the WinForm RichTextBox control that exposes, for example, an Html property that allows to get/set the underlying raw HTML text stream. I'm not really interested in any kind of RTF->HTML conversion code, just a control that allows direct access to the raw HTML text. Thanks. Tag: Sharing stuff amoung forms Tag: 71364
  - 16
    - Undo/Redo - Business Objects, User Interface and DataBinding Objective/Goal: Maintaining state of Business Object and User= Interface to provide N-No of Undo/Redo capability=2E User= Interface and Business Object synchronization (After any= Undo/Redo operation, the UI should focus the Bound control whose= value is changed)=2E "As far as maintaining the state of the business object is= concerned, this problem is resolved=2E But the only trouble i am= facing is "The User Interface must respond and set the focus to= the underlying control" Problem Description: The undo/redo action should allow= user-initiated changes to be reversed and re-applied=2E It is= necessary to detect user-initiated changes to the business object=2E It would be insufficient to monitor the various= property change events emitted by the business object because= the event handler would be unable to tell whether the change originated= from the UI=2E Furthermore, it would be insufficient to monitor= the validated event because this event provides no details about the binding= activity (before/after property values)=2E Also some modifactions= to the state of the object might result from a method= invocation=2E The requirement is to find an event which gets fired every time= the Object property is changed or reset=2E As well as this event= should notify us the current bindingContext=2E The binding class= in =2ENet Framework provides us 2 such events viz Format and Parse= and these two events proved to be insufficient because of their= nature of occurance=2E (The Format event gets fired every time= before and after the object properties are changed and there is= no notification of New and Old values=2E The Parse event gets= fired every time when the property is changed through the UI and= will not get fired when the property is changed through the= code) Research over BindingManagerBase revealed that the Push /Pull= data methods are not virtual methods, they are only protected= methods in BindingManagerBase, so it seems deriving from= BindingManagerBase could not customize them, also the= BindingContext only accepts the class which base is= BindingManagerBase so create a wrapper class for the= PropertyManager class also might not work In order to achieve the above mentioned objective, we are= thinking of building a CommandManager which would sit between= the Presentation layer and Business layer=2E CommandManager will= be responsible for interacting with the Business layer and= maintaing the UI state as well as the Business Object's current= state=2E Any property changes/method calls to the Business Object= will pass through the CommandManager=2E This solution requires= the team developers to write their own Custom binding over the= =2ENet Framework and seems to be a possible but too much of an= effort=2E -------------------------------- From: Sandeep Arora ----------------------- Posted by a user from =2ENET 247 (http://www=2Edotnet247=2Ecom/) <Id>Firdn9fne0WjNJMVn25nzQ=3D=3D</Id> Tag: Sharing stuff amoung forms Tag: 71363
  - 17
    - close application Hi It seems like the winforms has the minimise, maximise and control box properties...but not 'close' application that can disable the closing of the applicatrion by clicking on the X on the right hand side of the screen. The only way to be this is to set the controlbox property to false, but this takes away the ability to mininmise and maximise Any help would be appriciared. Tag: Sharing stuff amoung forms Tag: 71358
  - 18
    - WYSIWYG Editor Hi I want to make a full client WYSIWYG editor which renders normal HTML control on a container through drag and drop operation. Has anybody attempted this or something like this. Do let me know if anybody has any idea about this Thanx in Advanc Ash Tag: Sharing stuff amoung forms Tag: 71356
  - 19
    - Create an Icon from an Image safely I am building a "smart client" WinForms executable that will be launched directly from a webpage. I do not want to require any client-side installation, or .NET security policy configuration. I am trying to dynamically generate the image for a NotifyIcon. I could not find any way to get a Graphics object for an Icon, so I decided to create a Bitmap. I can create the Bitmap and generate the image: Bitmap iconImage = new Bitmap(16,16,System.Drawing.Imaging.PixelFormat.Format24bppRgb); Graphics g = Graphics.FromImage(iconImage); g.Clear(Color.Transparent); // image generation is simplified for this example g.FillEllipse(Brushes.Orange, 0,0,16,16); g.Dispose(); but now I cannot figure out how to use the image in my NotifyIcon. I tried: trayIcon.Icon = Icon.FromHandle(iconImage.GetHicon()); but that throws a SecurityException when the code is run from a webpage. Apparently the Icon.FromHandle() method is considered UnsafeCode. So then I tried: System.IO.MemoryStream iconStream = new System.IO.MemoryStream(); iconImage.Save(iconStream, System.Drawing.Imaging.ImageFormat.Icon); trayIcon.Icon = new Icon(iconStream, 16, 16); but the iconImage.Save() line throws the following exception: System.ArgumentNullException: Value cannot be null. Parameter name: encoder at System.Drawing.Image.Save(Stream stream, ImageCodecInfo encoder, EncoderParameters encoderParams) at System.Drawing.Image.Save(Stream stream, ImageFormat format) Do I need some special Icon encoder codec installed, or is this a bug in the Framework? It looks like the ImageFormat overload is trying to call the ImageCodecInfo overload, but it is passing a null value for the encoder. Does anyone know how to make one of my approaches work? Or is there a different approach that will allow me to dynamically generate an image for my tray icon (within the security constraints of untrusted code launched from a web page)? Any help would be appreciated. Thanks. Joshua Flanagan Tag: Sharing stuff amoung forms Tag: 71350
  - 20
    - No Touch Deployment and Unknown Resources Files Hello, I have a smart client application that we have launched using no-touch deployment. Everything is working fine. However, while running some performance tests, I was running an HTTP sniffer to monitor the requests being made to and from the server. I noticed that when the application is launched, it makes a series of requests for each assebly for files that do not exist. The requests are for files with .resources extentions such as: http://myurl/myfolder/en-US/myapp.resources.exe and http://myurl/myfolder/en-US/mylib.resources.dll The server returns a 404 not found which makes sense, because the files do not exist. It then procedes to make requests for different permutations of the above request as if it is trying to find the file. It makes up to 16 different requests per assembly! I am trying to get down to the bottom of why IEExec is requesting these files. My application has a fair amount of assemblies, so the startup performace is noticeably slower because of this problem. If anybody knows of a way to eradicate this problem, it would be greatly appreciated. Thanks, Tyler Foreman Tag: Sharing stuff amoung forms Tag: 71349
  - 21
    - How to make Access-like data-entry form? All I want is a single-record form that allows simple record navigation, sorting and filtering. I've made a start but can't find how to sort/filter without refreshing the dataset(!) Ideally, the form should appear/function similar to a regular Access bound data-entry form. Why is this so difficult? Thanks, Paul. Tag: Sharing stuff amoung forms Tag: 71348
  - 22
    - How do I get a datagrid to register a data change from a custom control cell (combobox)? How do I get a datagrid to register a data change from a custom control cell (combobox) I've got a Windows Application with a Windows Form Datagrid that has a custom combobox column. When the user clicks on a new row in the datagrid and tries to select or enter a new value in the combobox, the datagrid doesn't seem to register the change, so if the user tabs through the columns and onto the next row, the data is cleared and not saved Does anyone have any insight into how to register a change in the datagrid when my combobox changes? Tag: Sharing stuff amoung forms Tag: 71346
  - 23
    - context menu within listviews Is there any way to insert a ContextMenu type item into a ListView as a ListView item? Basically, I want a listview with a bunch of items (standard ListViewItem with string values and icons to the left) but one of them needs to have a flyout menu, similar to what you see in the WinXP Start Menu's Control Panel and My Recent Documents. So some items would be shown as the normal non-expandable listview items such as 'Search' and 'Run' but then others could expand, similar to 'Control Panel and My Recent Documents' with the icon to the left and also have the triangle icon to the right. I've examined the Start menu with a spy toolbar and the tool tells me that the whole right side panel is a SysListView32 so I'm assuming that what I want done is possible. Does it involve a bunch of owner-draw code for the listview or can it be done in a simpler way? Thanks, Justin Tag: Sharing stuff amoung forms Tag: 71343
  - 24
    - listview out of range error. I have 30 records going into my listview, and I know that it will fill from 0 - 29 in the listview But when it gets to 29th item it throws an error telling me that ' Parameter Name: 29 is not a valid value for displayIndex It doesn't make any sense to me. frm.LvChJob.Items.Add(Job.JobName) 'job nam frm.LvChJob.Items(lstCount).SubItems.Add(Job.JobDesc) 'job descriptio frm.LvChJob.Items(lstCount).SubItems.Add(Job.JobComments frm.LvChJob.Items(lstCount).SubItems.Add(Job.JobDate) 'date or da Tag: Sharing stuff amoung forms Tag: 71342
  - 25
    - How to draw the 1/2 symbol The "1/2" symbol is 00BD in Unicode, or 189 in Decimal or 00BD in Hex Can someone post some simple code using Drawstring or Drawimage to draw this. I am printing numbers and would like the 1.5 to print as 1 1/2, but using the "1/2" symbol instead of the 3 characters "1" "/" "2" Thanks Tag: Sharing stuff amoung forms Tag: 71341

Hi all !

Is there a way to share components among forms. I think especially about ImageList which should be
created once and reused in every form. Database connecions is another example.

TIA

Best wishes
Kai Bohli
kaiboeNO_SPAM@online.no
Norway

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Re: Sharing stuff amoung forms by Mark

Mark
Tue May 11 11:12:26 CDT 2004

sounds like a potential case to use static members. On one of the recent
VB.net seminars, the instruction talks about creating a single Globals class
that he puts only static (or Shared in vb!) members that can reused
throughout the application.

--

--

Br,
Mark Broadbent
mcdba , mcse+i
=============
"Kai Bohli" <kaiboe@nospamonline.no> wrote in message
news:ihs1a0p7iagh6r8ichkhpa22lntndt4445@4ax.com...
> Hi all !
>
> Is there a way to share components among forms. I think especially about
ImageList which should be
> created once and reused in every form. Database connecions is another
example.
>
> TIA
>
> Best wishes
> Kai Bohli
> kaiboeNO_SPAM@online.no
> Norway

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Re: Sharing stuff amoung forms by hirf-spam-me-here

hirf-spam-me-here
Tue May 11 12:20:08 CDT 2004

* Kai Bohli <kaiboe@nospamonline.no> scripsit:
> Is there a way to share components among forms. I think especially about ImageList which should be
> created once and reused in every form. Database connecions is another example.

Create a class with shared properties, or implement the singleton design
pattern in a "global" class (see Google for more info).

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

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