Hi, I have a WPF User Control that essentially encapsulates a WPF Window. The user control is hosted in an element host on a Windows Form. How can I tell the Windows Form to close based on events that occur in my WPF User Control? One major limitation... I cannot reference my Windows Forms...more >>

Hello, I would like to play at a certain moment the exact sound that Windows play when an information message box is shown (the one with blue "i" in the bubble). I know I could find the .wav file and play it somehow, but I'd like to play the sound that is assigned to the info message box in the...more >>

I have a Windows Forms application consisting of several main level TabControls and each of these controls has two or more TabControls within them. I have a method which calls all the LoadDataGridViews methods which I call in the form's constructor. The last line in each method is datagri...more >>

Hello, friends, I created a class library (c#.net 2005) in which it may instanciate multiple window forms to display images: One window for each image file. It worked fine except that if more than one instance were created, all instances will share the same window although you can see mult...more >>

I have a Web Service with approx 90 functions. I had, or still have, a VS 2005 Windows app that has a reference to the Web Service and when building the Windows app it takes a few seconds to build the release or debug. Create a VS 2008 Windows app with only 1 form and a "hello world" button ...more >>

Does anyone know why this is not exposed in the designer? Is it just me or is this a really stupid oversight? I turn it on in code, but that doesn't prevent the designer from every once in a while autogenerating columns on my datagridview. I can't seem to predict when this'll happen -- for e...more >>

Using C++ in VS2005 I am setting color of ListView items (there is only a single column) using the following code: ListViewItem ^pItem = gcnew ListViewItem(pName); pItem->ForeColor = Color::Blue; this->List->Items->Add(pItem); But all the items stil...more >>

Dear All, I use System.IO.Compression namespace for compressing file give me overflow for streamObj.Length when file size more then 3 GB. following my code: Dim streamObj As Stream = File.OpenRead(GZipFileName) Dim buffer(streamObj.Length) As Byte streamObj....more >>

How can I pass a parameter to a new thread? Thread t = new Thread(new ThreadStart(ThreadProc)); t.Start(); Thread.Sleep(0); ...more >>

Hi, When I have a base Form that I add controls to, then inherit that Form, when the derived class is viewed in the designer, the controls that were placed on the base are visible, but all the properties are locked. What I would like to do is to use controls in the base that act like a t...more >>

How to connect two systems in java and one system can send information to another system viceversa please friends give any suggestions to me as early as possible thanking you...more >>

I am trying to find the border color for a group box so I can create some additional lines within the group box that match it. I can't find any reference that says which system color it maps to. I have tried a few different colors but some match on XP but not in Vista so if I can find the system...more >>

I've created a dataset that includes a tableadapter and table for countries. Here is the table schema CREATE TABLE [CAT].[Countries]( [CountryID] [smallint] IDENTITY(1,1) NOT NULL, [RegionID] [smallint] NOT NULL, [CountryCode] [varchar](12) NULL, [CountryName] [nvarchar](100) NOT NULL, ...more >>

I am trying to display some data that I received into a form. The form is in english. The data is in cyrillic (russian) which uses codepage 1251. I am trying to change the button text to russian. For example: cmdCancel.Text =3D "=CE=F2=EC=E5=ED=E8=F2=FC" Those are garbage characters whi...more >>

Hi: Need to get access to user control properties when loading host form. Which form event fires after controls are loaded? Thanks, Charlie ...more >>

Hello, friends, I tried to select all the items using (c#.net): private void ButtonSelectAll_Click(object sender, EventArgs e) { for (int i = 0; i < this.ListViewPageNumber.Items.Count; i++) { this.ListViewPageNumber.Items[i].Selected...more >>

I have a DataTable/DataSet from SMO that is being displayed in a DataGridView. I need to periodically requery the DataTable and refresh the DGV display with the updated results. This much I can do. However, I also need it to retain its user context. That is, what row the user is on (wha...more >>

Hi I have an access backend database to which I need to give a vb.net front end. I created db connection and data source in vs 2008., I then dragged the fields onto a form which created the app for me. The app works ok but my question is; is this the correct/acceptable way to cerate an app or ...more >>

I have a class, MerchantList, which has a property, Merchants which is a List(Of Merchant). I am trying to figure out how to "replace" one of the Merchant objects in the Merchants List with another new one. I created a simple test, coded as follows: Dim oList As New MerchantList Dim oMe...more >>

The control added is derived from TabControl with 5 Tabs each of which has a DataGridView on it. The DataGridViews are DataBound to a BindingList Collection of Business Objects. The really interesting part is it only happens when the DataGridView on TabPage0 has 2 rows. Also, if I take th...more >>

I use Mytextbox.text = "Default" mytextbox.focus How do I focus on the first character in the text box? -- Arne Garvander Certified Geek Professional Data Dude...more >>

Hello, friends, I know this sounds stupid, but I could not figure it out. So, help please. I have ListView control in Details view and I need to populate. I used the following code for (int count = 1; count <= 50; count++) { ListViewIt...more >>

Let's say that I have a form, called Form1. It could have three files associated with it, which I have listed below together with my understanding of what "should" be in each: Form1.vb -- should contain any custom code I've written for the form Form1.Designer.vb -- should contain all wi...more >>

Hi I have noticed this problem with vs2008. I change settings for controls then I run the app and I don't see the changes at runtime. I stop the app and the changes are there in design mode. I close vs2008 and re-open app in vs2008 and app did not persist those changes and I have to do t...more >>

I have a user control inside another user control. Is there a way for a Child Control to call back to the parent, raising an event in the parent or anything such? -- Arne Garvander Certified Geek Professional Data Dude...more >>

This is a problem from 23 Jan 2002 ==================================================== Pierre Shirvan I have a form with a Panel with the autoscroll property set to true and a command button, on the form, that adds a usercontrol to the panel's control collection when I click it. I add se...more >>

Hello. Environment : VS 2005/ VC# / .NET 2.0 By default Windows Form provides a window. One can programatically change the look and feel of the windows . But I want to create a reusable Window , so the user does not need to program the window . Approach 1 Create a wizard whi...more >>

Hi guys, I have a DataGridView binded to DataTable. In the DataTable I have an "ID" field. How can I create calculated column in the DataGridView that gets as value object (string) from my list, where item index in the list is equal to value in "ID" field? Thanks a lot Aleksey ...more >>

In VS2005 VB, is it possible to bind a Nullable property to a data source (e.g. DataTable) property that is not Nullable? My goal is to be able to convert DBNull to and from Nothing for Value data types. I created a derived Binding object with Format and Parse handlers. In the Format event I...more >>

Hello, I have a user control which is dynamically added to a Form object (mdi child). and mdi child parent is mdi main. usercontrol->mdi child -> mdi form. i want to raise event in "usercontrol" and notify to the "mdiform" as shown above. any suggestions? thanks....more >>

I'm upgrading/rewriting an apllication written in VB6 to VB2008. The main form had an outlook-like navigation with a vertical buttonbar in the left side of the form and a bunch of frames with controls on them in the main area. All these frames were placed exactly on top of each other, and pus...more >>

How can I set the value of a progressbar in a wait window? frm (it contains the progressbar) is a form that is called from another program. I get a compilation error at the first line below. System.Windows.Forms.ProgressBar prgrs= frm.Controls["progressBar1"]; prg...more >>

I need to dunamically create buttons on a windows forms depending on the data that is requested. How can I create an event handler on the fly for this buttons? -- Arne Garvander Certified Geek Professional Data Dude...more >>

I have a text box that represents Hours worked, I also have a text box that represents Adjusted Hours worked. If user wants to override the Hours worked they enter a value in the Adjusted Hours worked text box. In doing so the Adjusted hours worked field in the database would then be updated...more >>

Hi, I have been developing web applications. Now I have got a task to implement an application to simulate an exam. I'm thus thinking to make it a windows Forms app. as one of the requirements could be to stop students from using any other application on the computer. How can I stop stud...more >>

Hi all, Does anybody have code snippet which I can use to PRELOAD a list of MDI childs, to improve the load (avoid flickering) event? FYI, during the child load event, all comboxes are filles with data from the database.... Thx for your response !! -- Best regards Luc ...more >>

In my application I use an mdi form in which I display several forms, What is the best way to preload this forms ? during the load event I goto the database to fill my comboxes.... thx for your quick response! -- Best regards Luc ...more >>

Hello, I try this link http://weblogs.asp.net/nleghari/articles/webcam.aspx following code I try: this.picCapture.Image.Save("test", System.Drawing.Imaging.ImageFormat.Jpeg); My Problems is how to get image in jpg format and store in database. Thanks, Harshad Prajapati ...more >>

I need to add some textboxes to a form, programmatically Dim ctl As New System.Windows.Forms.TextBox ctl.Top = iTop Me.Controls.Add(ctl) iTop = iTop + 25 I need them to anchor on the left and the right - but I can't seem to find how to do it When I try to programmatically anchor them, I ...more >>

Hi I want to build a form that will function as a wizard. I want to use a tab control and two buttons for Back and Next. Pressing the Back and Next buttons will switch the active tabsheet. But I can't figure out how to hide the tabsheet tabs. There doesn't appear to be an...more >>

Hi We are working on a Health Contact Center Application in which a patient is able to contact using either Chat Application or Phone Call with the Doctors. When the doctor is contacted using either of these means, a popup appears at the Doctor's End and he is able to communicate with the pati...more >>

How do I know over what element of ListBox is cursor? http://www.alvas.net - Audio tools for C# and VB.Net developers ...more >>

How do you create Accelerator behavior for a Windows Form exe with a menu (i.e. <ALT> + O to call an Open File method). The property on the Menu Item doesn't seem to do anything except display some text indicating an accelerator is present. There is no way to connect the key sequence to a ...more >>

Ok, I’m using the method DownloadFileAsync to download a large file and I also use the DownloadProgressChanged event to show users how far along they are in downloading the file. I put this into a WinForms application, make a call to the download file method (behind a button click event) an...more >>

I don't know if this is the appropriate newsgroup, but not sure which one would be. I have a custom dialog that I added to the UI of the deployment package. That dialog asks for special installation options. #1. Depending on the users configuration, I may want to suppress that screen e...more >>

I need in my Windows Forms application to allow user to enter a rectangle and later resize it. In the other words, I need to display a rectangle that (if selected) shows control points that user can grab (with mouse) and drag to resize the rectangle. Can you recommend an appropriate control? ...more >>

HI guys, I think many of you are using subversion, however do you have some projects that directly involves subversion (e.g. checkout from your application)?? I was looking for some components, however I was not successfull and I would like to know if there is anyone that was fighting with ...more >>

I have a dataset with one table, which I build from scratch (not using SQL server). It displays fine on the web with a datagrid. I use the same dataset and apply it to a DataGridView in a windowsform. My datagridview does not display at all. What am I doing wrong? HistoryGrid.A...more >>

I have project where I am assigning forms to Tag of different form (therefore creating some kind of relationship)... My problem is quite simple - when one of forms is disposed, tag still contains that object. So my question is quite simple - is Tag ByRef or ByVal??? Thanks, Martin...more >>

Heya, I am writing my own class, that is inheriting from Form and only adds few additional properties. However question is how to add this custom class to toolbox?? Thanks, Martin...more >>