Hello, I need some help with a DataGridView control and ProcessCmdKey method of the form. The DGV is data-bound to an Access database table with a few NOT NULL columns. The ProcessCmdKey method of the form is overloaded. I tried to use return base.ProcessCmdKey(ref msg, keyData); in the...more >>

Does anyone know how to do this accurately. I really only want to clone the design-time properties which should make the task easier. I've searched high and low however and still can't find a problem-free solution. Even (ad-hoc) solutions posted by MSFT employees have problems. For instance, i...more >>

Any recommendations for WPF books? I'm a little skeptical of reviews on Amazon right now, since they might be astroturfed by the publishers....more >>

I am creating a winforms application. Drag and drop and VS 2005 automatically created Dataset based on the MDB schema. I found it seems that all the changes are cached in the memory. Will the default way has any scalability issue if the database tables are huge? What's the solution if it doe...more >>

Hi all, I have a 2 classes (A and B) inheriting from 1 base class (parent). I populate a listbox with those 2 classes (A and B). I want to implement some drag and drop ordering code on the listbox. To get the data out of the dragged item I try: Parent myParent = (Parent)e.Data.GetData(type...more >>

I am doing a simple chat server using .net remoting. When client application in my system gets a message, i call a method which creates a new object of a form to display message..The problem is i cant call Show method or Showdialog. if i call Show method, the form is not being displayed. if i c...more >>

Hi all I have been asked to develop a solution that is customisable by our clients. It is supposed to run on the Windows Mobile 5.0 CF2.0 environment using Merge Replication. I have looked into allowing the creation of Addin's but that has been rejected as it would require t...more >>

Hi all, I have been searching this group for an answer, but all responses seems lead to the same conclusion as I would expect. So even if my small resource-test is made up of code snippets from the documentation, I'm still not getting the result I expect. Here's the setup: In my windows ...more >>

Is possible to upgrade their workstations to Internet Explorer 7? If so, they can then zoom what is in the browser window. Works really well. Everything is zoomed: fonts, pictures.. ...more >>

Hi, Straightforward code posted below. Problem is that the MouseLeave event sometimes does not fire. Strangly, it seems to be more often when moving the mouse slowly away from the label (control "lblMin" is a label). Any ideas? Thanks Paul Private Sub lblMin_MouseEnter(ByVal sender As ...more >>

Hello, can anybody tell me why OnMouseMove isn't working while doing a ListView item drag operation? thx stax using System.Windows.Forms; namespace WindowsApplication1 { public class Form1 : Form { private ListView listView1; public Form1() ...more >>

Hello NG, I am despairing, please help me. With VS2005 i drag 2 Listboxes on my form and a bindingsource. Listbox1 is bind to a bindingSource1.DataSource = data Listbox2 is bind to a Listbox2.DataSource = subItemsBindingSource all work as expected. When i select a item in listBox1, listbo...more >>

I have a data entry form with bindingsource and tableadapter (Access MDB). How to detect if there is any unsaved modification when closing the form? thanks...more >>

I am binding a custom object list (custom collection) to a ComboBox column inside a DataGridView to use as a typical lookup. The list of items has up to 10,000 rows (8,000 currently) and when you enter edit mode on the combobox cell you must wait up to 4 seconds to see the dropdown of the list...more >>

I have an explorer type application with navigation on the left half of the form and a viewing/details panel on the right. The right panel can show different content types based on what is clicked in the left side. What is the best way to organize this code. Should each panel/content type ...more >>

Does anyone have a link to a good reference on using the Theme API? Here's what I'm trying to do: I'm modifying a project I got off of CodeProject. It's a collapsible group box. This control has a standard plus/minus graphic, but it's always a simple black-and-white image. That's fine for p...more >>

Hi. I have a Windows Forms application developed in .NET Framework 1.1. The Application.ExecutablePath() function does not return correctly the application path if the path or the EXE filename contains non-english characters (like "c:\aplicación\aplicación.exe), but only in Windows Vista...more >>

In the windows forms designer my buttons have rounded edges and things in general look good. However, when I run the application the windows form has the old looking square buttons and the text and other controls don't look like they do in the designer. Why?...more >>

Hi all, I have a usercontrol that doesn't contain a control. When I try to drop the control on a form I get an error: Failed to create component'TestcaseUserControl'. The error message follows: 'System.NullReferenceException: Object reference not set to an instance of an object.' at Line 20 ...more >>

Hi All, Was wondering if anybody could help. I'm currently trying to copy a record from datatable to another. I have two problems: 1) Transferring the record from one datatable to another. 2) Transferring the record from the new datatable back to the database. Any ideas? Thanks Gib...more >>

Hi, I have a collection property in my custom control like this one : [Category("Behavior")] [Browsable(true)] [Description("Column Collection")] [DesignerSerializationVisibility(DesignerSerializationVisibility.Content)] [Editor(typeof(ColumnCollectionEditor),typeof(System.Drawing.Design.U...more >>

Hi: Twice now that I have opened a control it's blank on design surface. Designer code is there, but nothing renders on form and getting no compilation errors. What's going on? Thanks, Charlie ...more >>

If I create a backgroundworker thread within a windows forms application. What happens if somone closes the windows form while the background worker thread is running. Is their a way to change the behavior?...more >>

Is there a way to suppress the dropdown of a combobox. Instead of showing the dropdown list I would like to show my own control as popup dialog when user attempts to view the drop down? Any code examples would be appreciated....more >>

Hi there, Given a "PropertyGrid" with one particular property that appears as = follows: -Size Width 10 Height 20 where "Size" is the native .NET "Size" structure, if the property is = marked with the "ReadOnlyAttribute" then all three lines above appear = grayed out as ...more >>

I am trying to setup a usercontrol as a base class, so that I can derive my usercontrols from it. the base is pretty simple: Imports System.Xml Public Class usrBase Inherits System.Windows.Forms.UserControl Public Overridable Sub MethodA() End Sub End Class 'derived clas...more >>

I have a UserControl that inherits from BindingSource and another control that takes a BindingSource as a Property. When both controls are placed on the form I need the designer to recognize the control that is inherited from BindingSource as a suitable target for the BindingSource property on...more >>

How can I change the Folder that the Windows explorer openes when it starts? Now it opens the Document folder, I would rather it open the Computer folder. -- Mike C...more >>

When I used VB6 - I used a very outdated, klunky version of HTML Help... Is there a newer version out there today? (I can't afford any 200 or 300 dollars for stuff on the market) ...more >>

I Have bad XP disk. If Isend back to MIcorsoft will they replace it....more >>

Hi, I have a DataGridView and a toolbar with buttons. I need to force DataGridView to validate and add the row user has just filled in (which is still not the part of the actual DGV.Rows collection, I guess) to itself after clicking on the toolbar button. The situation is this: 1. I have a D...more >>

I have a small .exe file that I want to load on to my XDA, how do I convert the .exe file os it will work in windows mobile 5...more >>

This is my code (only the important parts of it): int Rownumber =3D 1; string Rowtext[8000]; DataGridView1->Rows->Add(Rowtext[Rownumber]); This code (here simplyfied) should create a row in the grid and fill the first cell with the text stored in the array Rowtext[1] but when...more >>

I want to enable a text box only when it's in "add new" status. The BindingSource.Position just return a number. Any good way to do it? Thanks,...more >>

I am using Typed Datasets in VS2005 based on SQL Stored Procedures. When I do an Insert (using an Insert Procedure), I have set the SP to return a new ID number. However, I don't know how to reference that returned value to populate the Identity field on my Windows form. I'm pretty new to VB.N...more >>

Let's say I have a file loaded, whether it be text or picture. I want to be able to have a 'Next' button, which loads the next file in the current directory. I can load the files just fine, and to some extent, I understand System.IO (deleting/path designations, etc), but how can I look at th...more >>

Hi, This is a very general question. I am about to embark on developing a new application (Windows Forms based). All the business logic, external interfaces etc have already been developed and are available as ready to use libraries. This application is going to be multi-threaded. Is it...more >>

Probably an ado.net issue. I have two tables in Access obligor and Collateral, and collateral has foreign key reference to obligor. I created a winform to edit obligor. i tried to modify a none primary key column and got the following error. this.obligorBindingSource.En...more >>

Hi to All, I have DataGridView control bound through databindingsource to the SQLServer 2005. The problem is when I add or edit data, situation in the database is always step behind form situation in the grid. I use exampleTableAdapter.Update(exampleDataTable); for saving and editin...more >>

I am using Visual Studion 2005 SP1 and C#. I have a User Control that has a single label docked at the top of the control. This control is to be the basis for a number of inherited controls. Many of the inherited controls will have a split container docked as fill for the first control to be...more >>

Hi, I have a specific problem hosting a windows form control in IE. First i have created a user control and hosted it - everything worked great. But when a tried to host a 'Form' control instead it didn't work and i got the following exception: ' Top-level Windows Forms control cannot be expo...more >>

MyMDIChild is an MDI child to MyMainForm. When I run the following code the MDI child gets to be the owner of the dialog. MyDialog d = new MyDialog(); if (d.Init()) { d.Owner = MyMDIChild; f.ShowDialog(); } But when I run this code MyMainForm gets to be the owner. MyDialog d ...more >>

Hi all, I have a bit of a problem... I have a simple modal form with some textboxes. I handle Validating event for some of them, to check data format. Form has OK and Cancel buttons, AcceptButton and CancelButton properties set. Cancel's CausesValidation is set to false. When I click t...more >>

I´m hosting a C# userControl with lots of other controls on it in an MFC dialog. The problem is the tab order. I set it up correctly for the userControl in the designer and it appears to be set correctly after the call to initializeComponent() in the userControl as well, but it still does no...more >>

Hi: Looking for some ideas on how to set up Windows service that listens for messaging traffic. I've done something similiar before for capturing windows events. My questions... In what namespace would I find class that raises such events? Is the messaging traffic TCPIP or HTTP traffi...more >>

Hi, I have VB.Net MDI application (.Net 2.0). This application listen for incoming message on a Message Queue. If a new message appears in the message queue, it opens a new MDI child window and displays data related to the that message in a new child window. Now what I want is that, if t...more >>