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  • 2 Controls, 1 event

    - by DTown
    I have 2 input textboxes that take a host or IP. When the user leaves an input box an event is fired that checks the input to see if it is actually a live computer. The results are then put into the appropriate label. My question is, should I be using separate events for each input box, since they update different labels? Or, can I use 1 event and check who the caller was, then update the appropriate label?

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  • how to place windows control to html

    - by cerebrus
    Hi. I need to create a class Toolbar : Windows.Worm.UserControl (Framework 2.0) and to place it into HTML page. This page must work in IE6+. I found some examples and created my toolbar, but IE doesn't want to display it. Site with examples: http://feishunji.blog.51cto.com/237830/45990 Please, help to solve this problem.

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  • ListView Control and Details

    - by j-t-s
    Hi All, I'm a bit confused by a few tutorials that I read about the ListView. I have a ListView control and on the left hand side should be a name, and to the right of that name should be like another column with some more text in it. For example: ListView: jason blah blah blah item2 more blahs item3 jupiter item4 uranus How can this be done? Is there a simple way of doing this? Thank you

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  • Create SQL parameters programmatically

    - by Neo
    Another annoying one for me but probably something simple. I have a number of possible where clauses for a query based on user input, my question is how can I add these programmatically? For instance: wherequery = @"WHERE fieldname = @p_FieldName AND "; if (txtValue.textLength > 0){ wherequery += "fieldname2 = @p_FieldName2 AND "; } query = @"SELECT * FROM tabe" + wherequery; sql = connection.CreateCommand(); sql.CommandText = query; How would I go about doing the parameters for that? I've tried ArrayLists, Dictionaries and a few other methods but can't find a way of doing it. Ideally I'd want to do something like this: SqlParameter[] sqlparams; wherequery = @"WHERE fieldname = @p_FieldName AND "; if (txtValue.textLength > 0){ wherequery += "fieldname2 = @p_FieldName2 AND "; sqlparams.Parameters.Add("@p_FieldName2 ", SqlDbType.VarChar).Value = txtValue.text; } query = @"SELECT * FROM tabe" + wherequery; sql = connection.CreateCommand(); sql.CommandText = query; sql.Parameters.Add(sqlparams);

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  • When Something Occurs in a BackgroundWorker, Trigger Code on a Different Thread?

    - by Soo
    I have a background worker that runs and looks for stuff, and when it finds stuff, I want to update my main WinForm. The issue that I'm having is that when I try to update my WinForm from my background worker, I get errors that tell me I can't modify things that were made outside of my background worker (in other words, everything in my form). Can someone provide a simple code example of how I can get my code to work the way I want it to? Thanks!

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  • Displaying image in RDLC

    - by stackBest2
    I am working on a c# windows application. My problem is, I have stored jpg images in a folder. I need to retrieve the image from that folder and should display in the report(rdlc). I have written the following code but the image is not displaying. List<ReportParameter> param = new List<ReportParameter>(); param.Add(new ReportParameter("path", @"C:\picture\1.jpg")); reportViewer1.LocalReport.SetParameters(param);

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  • Resizing Grid Views On Window Resize

    - by Jack Mills
    I'm making a small Windows Forms application that contains a lot of grid views. I want all the grid views to resize with the window. I could make a function that detects window resize and then changes the size of each grid view but that feels a bit clunky. Is there not an easier/more intelligent way to do this

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  • How to assign a numbering scheme to TreeNodes based on position

    - by TChristian
    I have a TreeView control in a Windows Forms application that is displaying my own subclass of TreeNode. I need to display a number along with each node's text indicating its position in the tree, like 1 for the root, 1.1 for its first child, 1.2 for its second child, etc. I'm using C# with .NET 2.0 The best that I can come up with is, after the tree is built, go to each node, recursively find the parent and append the parent's sibling number to the front of the node's text until you reach the root.

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  • Set MdiParent to null (Nothing) in FormClosed

    - by serhio
    In my project I observed that in a FormClosed method (that handles FormClosed event) is set MdiParent = Nothing (null). This code makes (? no idea why) that OnLoad(method) on some child panels is raised. Is there any sense to set MdiParent to null (Nothing) in FormClosed?

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  • this.Width=30; NOT WORKING!

    - by j-t-s
    Hi All, I've been doing this for years. But now it's just not working. private void Form1_Deactivate(object sender, EventArgs e) { this.Size = new Size(30, 29); txt.Visible = false; lbl.Visible = false; } The form just does not change Width. But, as above, the 3 controls DO become invisible. Any suggestions?

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  • How to catch key press on a form c# .net

    - by flavour404
    Hi, I have a parent form that contains a lot of controls. What I am trying to do is filter all of the key presses for that form. The trouble is that if the focus is on one of the controls on the form then the parent form is not getting the key press event, so how do I capture the key down event? Thanks, R.

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  • Determine how an application is closed

    - by Mike_G
    I am trying to determine if my application is closed through clicking the "X" on the windows form, or if they clicked an "Exit" button I have on it. Right now I am using StackTrace.GetFrame(someIndex) to determine how, but i am looking for a more definitive way since it looks like these frame orders arent guaranteed. Is there a better way to make the distinction? This is a .NET 3.5 WinForm, and Im writing in C#.

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  • Install Dll in the GAC for .Net

    - by tkg
    Hi all, I am a beginner in .Net development. I need to ask about .Net winform deployment. If i have 1 exe file, some class libraries, and 3rd party components (DevExpress). Should i install these Dlls (class library and 3rd party component) in the GAC (Global Assembly Cache) in client computers ? Thank you for the explanations.

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  • Is there a way to remove Alt-character shortcuts from controls at runtime?

    - by Dan Neely
    I have a dialog with a number of Alt-Letter shortcuts on labels for textboxes/etc. This dialog can present data in either an editable or a read-only mode. I've received a request to hide the underlines for the shortcuts if the dialog is in read only mode. Other than editing the label text at runtime (ugh) is there any way to remove them? If you don't know what I'm referring to by alt-Letter shortcuts see this question.

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  • New records added to DataGridView aren't displayed

    - by Ross
    I have a custom Order class, groups of which are stored in List<Order> and a DataGridView. I think the problem is in my implementation so here's how I'm using it: In the form enclosing DataGridView (as OrdersDataGrid): public partial class MainForm : Form { public static List<Order> Orders; public MainForm() { // code to populate Orders with values, otherwise sets Orders to new List<Order>(); OrdersDataGrid.DataSource = Orders; } Then in another form that adds an Order: // Save event public void Save(object sender, EventArgs e) { Order order = BuildOrder(); // method that constructs an order object from form data MainForm.Orders.Add(order); } From what I can tell from the console this is added successfully. I thought the DataGrid would be updated automatically after this since Orders has changed - is there something I'm missing? The DataGrid accepts the class since it generates columns from the members.

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  • What is a way to access .accdb files for reading and writing?

    - by JPJedi
    I have an Microsoft Access Database (.accdb) that stores information needed in an application. Is there a way to distribute my application with the access database without having the user have access installed or get the user to go and download and install the office runtime? The windows form application that uses the access database is developed in VB.net in Visual Studio 2008.

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  • Adding a Design time Panel to a TabPage at run time

    - by BDotA
    Hi, I wish to have a Panel with the controls on it at design time but I want to add this panel to a desired tabPage of my TabControl at run time. I wrote something like this, did not work : the panel does not show up in the tab page. please help me. panel2.Parent = tabGuy.TabPages[0]; tabGuy.SuspendLayout(); tabGuy.TabPages[0].Controls.Add(panel2); tabGuy.ResumeLayout(); panel2.Show();

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