hi all, i need to create vertical scrollbar dynamically for the controls that are created dynamically in the form. (i'm not adding any controls to the panel). when the form exceeds(coz of dynamic controls creation) the default system coordinates, vertical scroll bar should be dynamic...more >>

Hello Now i have try create an click event in a form,so i doubleclick the form,but the IDE create an form_load event automatic: private void Form2_Load(object sender, System.EventArgs e) { } but the code i need is: private void Form2_Click(object sender, System.EventArgs e) { }...more >>

hi all, I have a windows application which is developed in VB.NET. I have used some bitmaps and set image property of button. Some time I load form programmaticaly.. following error pops up 1) Specified Cast is not valid it is on the following line of code. Me.Button1.Image = CType(resourc...more >>

I have to write some code to change the panel which contained in the forms, but is there anyway just design the panel without putting it in the form.Thanks forward! ...more >>

I'm developing a quite comlex form containing a user control in C# In the user control I'm trying to set a simple label to be visible: labelState.Visible = true; The debugger showns me, that the labelState.Visible is false before entering this line of code. But it is still false after thi...more >>

On my grid i'm defining what data to show, colors, etc. Now, I have one column were i need to show the time instead of seconds, I have the code to convert time to seconds, but how can I get that into my grid? i have sub GridFormat() ...more >>

Hi, I want to open up a number of child forms in my main mdi container form, but I want the processing that will happen in each child to happen in a different thread. I tried something like this: ChildForm childForm = new ChildForm(); shildForm.MdiParent = this; Thread thread = new Threa...more >>

Hi, Is it possible to retrieve the (Name) value from ColumnHeader property? I am trying to get the value through PropertyDescriptor / PropertyInfo, override it through new property but it does not seems to work or it is not available to access. How can I actually do that programmatically i...more >>

Hi, I develop .NET control which will host in IE (like applet). I want to set value of <INPUT> from this control. Is it possible. If no, is possible to change something in client-side from this control ? P.S.: I browsed .microsoft.com and also I tried to find something in google.com about...more >>

Hi, does a property UseMnemonic exist for a Button control?? I've created a button with this property: Button.Text = "&Add new record"; Button.Name = "btnMyButton"; The & should allow a easy access with the keyboards... but it doesn't work: with Label is easy thanks to the UseMnemonic pr...more >>

Hi, I want to have interactions between two forms. A will sample with next lines: 1. The program user has a main window with a Listview control on it 2. The user selects an item from the listview and selects some 'details' option. 3. The program responds showing a child window with details fo...more >>

How can i transfer information that user inputs from a textbox in one form to a label in a second form?...more >>

Hi Does anybody know of a way to fix the size of inheriting forms by setting a size in a base form. I would like to remove the ability of developers to change the size of a form (in design mode) if they inherit from a particular base form. I know you can override the SelectionRules property ...more >>

Hi, Iam new to windows forms so maybe this problem was discussed already (tho I could not find anything on google). I have added and docked to the left a ListBox, now when I resize Form, list box resizes correctly in Width, but in Height it does not change its position smoothly. I mean t...more >>

Hello, I'm implementing an undo/redo drop-down menu similar to the undo/redo menus in VS.NET 2003. The idea is that when the drop-down arrow is pressed, a floating ListBox control appears under the pressed button, and disappears when the user chooses an action to undo or clicks anywhere else ...more >>

I'm trying to find an event that will help me keep a status area updated for the grid row under the cursor. For the most part when a user clicks somewhere in the readonly grid I am responding to the cell change event, and selecting the entire row. A custom paint reverses colors. This works ...more >>

I posted this in microsoft.public.dotnet.languages.csharp with name of "Bug in Framework?" Drop a timer on the form, set it's interval to 1000 and put this in for the timer event: timer1.Enabled = false; MessageBox.Show("TEST"); Run the application and make sure to take focus away from t...more >>

Not sure how to explain this problem so here it goes... I have two forms and I want to copy data from one form to load into another. Now this seems to be working but the problem is the various controls seem to be populated before the bindingcontext is finished. Therefore erasing my preload dat...more >>

Hello, I am using the IE WebBrowser (shdocvw.dll) inside my form and use it to display an HTML background in my form. I also want to capture mouse events that occur on the browser (Mouse Down). To do so, my class implements IMessageFilter to pre filter messages and do special stuff on Mou...more >>

I have a user control on a form and when I close the form. This is the first event that fires: 'Form overrides dispose to clean up the component list. Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean) If disposing Then If Not (components Is No...more >>

How would I code a program to take information entered in a text box on a form and use it or a pointer to use the information in a different part of the program?...more >>

Hi, We are using UIP 2.0 and we encountered a problem when trying to inherit from a form that inherits from UIProcess.WindowsFormView. Our base form have an onLoad event handler that call its controller: private MyController myController { get { return (MyController)this.Contr...more >>

Hello there. I will start a new software development and I would like to put in it the same look and feel of Microsoft Money 2005 Edition. If you spend a few moments using it, you will that it´s nice! really nice the way the software handles the things with its interface. I will use C#, but ...more >>

I have a strongly typed dataset that I have been able to bind to a DataGrid and other associated controls such that selecting a name in the DataGrid displays the record in the associated controls using DataBinding and the CurrencyManager. Add, Update and Delete are all working great. Abov...more >>

I have a winForm and i need to display my data in this format and this format only. Is this format possible with any control supplied with .NET Windows Application? header data: BMW Porsche Lexus left column data: 1/5/05 2 car...more >>

I have a listbox who's dataSource is an array of Classes of the type Discount. and this listbox is bound to a Customer's Discount property. Customer c = CustomerFactory.GetInstance(2342); Dicsount[] d = DiscountFactory.GetAll(); ListBox1.DataSource=d; ListBox1.DisplayMember="Description"; L...more >>

Hi, Do u have any site-links for the mock test of MCP exams(C#)? Thanks and regards ...more >>

How to use oleDbConnection and oleDbDataAdapter to generate typed dataset? oleDbConnection and oleDbDataAdapter are not on the toolbox. Datasource and connection generated by Data Source Connection Wizard doesn't suit me. TIA ...more >>

Examine the following code fragment used from within the main form of a windows forms application when clicking a button: private void button1_Click(object s, System.EventArgs e) { try { Form2 f2 = new Form2(); f2.ShowDialog(); } catch (Exception ex) { MessageBox.Show (...more >>

Hello, I am working on an updater that Retrieves a file from a web page. GetRequest.Method = "POST" SW = New StreamWriter(TheRequest.GetRequestStream) SW.WriteLine(TransferName) SW.Close() TheResponse = TheRequest.GetResponse() ms = New MemoryStream() CopyData(TheResponse.GetResponse...more >>

I have a user control (uc2)which lives on another user control (uc1) on a form (a nested user control). When I open the form in design view the the load even fires in uc2 so the first line of code in the in its load event is: If Me.DesignMode = True Then Return However, it doesnt work a...more >>

Hi! Sometimes (not reproduceable) I'm getting an NullRefException from ListView.OnHandleDestroyed()-Method. Can somebody tell me, why ListViewItemCollection.get_Item() is being accessed, when the Handle of the ListView ist already destroyed? .... 3) System.NullReferenceException 2) ListVi...more >>

Is it possible to hide the "gray" column on the left side of the datagrid, and is it possible to put data in there if i can't hide it?...more >>

Hello Is it possible to create a TabControl with Alignment Left and horizontal Text for the TabPages? Thanks Edi...more >>

In VB.net How could I access variable in Form2 declared in Form1. Thanks!...more >>

I have the in famous multi combo on the form bound to the same DataSource Issue. I have a dvLookup which is used in multiple comboboxes to do the lookups. How because they are all having the same DataSource: dvLookup, they have the same currencymanager. So selecting one option makes eve...more >>

(apologies for the repost, I believe we've got our MSDN subscriber passport correctly associated with our no-spam alias this time) We are receiving error reports with NullReferenceExceptions from our users with stacks like the following: at System.Windows.Forms.UnsafeNativeMethods.CallWind...more >>

I need to make a control that behaves like a tool tip, but I need to be able to draw on it and I also need to show it on demand, not necessarily during a mousehover event. The problem with deriving from Control, is that you get the window frame when you make the control a top level control....more >>

I have an application that is in production and every so often, i am told it becomes slow and nearly unresponsive, so they have to reboot it, then it works fine. I am wondering what the problem is. i imagine the code has a memory leak somewhere. i can't confirm that a lot of memory is used up on ...more >>

Here's the problem that I'm having. Our application in debug mode doesn't link in Application.ThreadException, it only functions when in debug mode. (did this with a compile directive) so that we get errors on the right error line etc. Makes everything easier for debugging in debug mode. Ho...more >>

I am getting the following error when starting a winform app that causes the app to simply hang and I have to end up killing it from taskmgr Error loading main form : Object reference not set to an instance of an object. at System.Windows.Forms.EnableThemingInScope..ctor(Boolean enable)...more >>

I tried using the Keys enumeration: (Shortcut)(Keys.Control | Keys.Tab) but it does not work. ...more >>

I have a windows form application that works great on nearly all the machine we have tested it on. We just got a new machine. When I run the application on that machine, all the static test labels in my dialogs are blank. I also have a message box that is showing up with no text in it. It seems ...more >>

I'm using the DataGridColoredTextBoxColumn class (the VB version) - http://msdn.microsoft.com/smartclient/community/wffaq/ctrlsp.aspx#4umuvlol to colour cells in a datagrid on a windows form (VS 2003) and, for the most part, it's working fine. One slight issue though... If I use backBr...more >>

How can select a node with a right mouse click? Fred Herring...more >>

Im used to using web forms and adding user control info at design time in html. The example i have for a win form is that the user control must be compiled then you add it to the toolbox then add it to the form to put it on. How do i add the control without having to compile it first and also ...more >>

I have a form which has a custom Non-client area. When the note is activated the NC area is inflated, keeping the client area at the same location on the screen. I manage the size of the NC area using the WM_NCCALCSIZE message and paint it during the WM_NCPAINT. All works well as long as I d...more >>

Any such thing as postopen event? I have a form that loads data and after loading informs user of missing information via a messagebox. My problem is that the messagebox appears before the form opens. I would like the form to finish openning then have the messagebox open on top of the form....more >>

Hi, I have a simple Windows Forms app that connects to a SQL server, extracts about 50,000 records and saves them to a file. During the query, I have a small bit of text on a status bar that increments a period (.) every second to show the user that the app is still running and not hung. I ...more >>

Hi, does anybody have an example of PrintPage event which builds a PrintDocument as a table and handles also the size of columns contents like this: Title1 |Title2 |Title3 ================================ first cell has |second cell |also third a t...more >>

Hello, How can I close one form (formA), from an event on another form (formB)? TIA...more >>

Hello, I have main form like Windows Explorer. But in the right part I want to have another form. How could I do it? How could I insert form into main form. Jan...more >>

Hi, I am trying to develop Windows Forms application (not Web.UI stuff), and I wanted to put LinkLabel in the DataColumn of DataGrid but I am not able to do so. I got this below link where the guy extended DataGridColumnStyle to have combobox but I can't figure out how to put LinkLabel inste...more >>

Hi All, I got a recent-files-list on a WinForm, that gets added from a string-array (string[]) at Form_Load, and I have difficulties assigning shortcuts to them. I want the shortcuts to be Ctrl0,Ctrl1,...etc, based on how many items I have in my list (max 10 items). Is there any elegant ...more >>

I would like to display a modal dialog after Application.Run returns. In this particular case, it is a dialog to inform the user that some cleanup code suffered catastrophic failure. I have discovered that forms cannot be shown modally once Run returns. Is there a way to alter this behavior...more >>

i have a textBox1 control and i'm handling it's double click event thru textBox_DoubleClick(object sender, System.EventArgs e). now is there a way to clone this control at runtime including it's event(s) so that when i double-click the cloned control, textBox_DoubleClick() would get called? ...more >>

Hi, friends, In my C#.net Windows MDI app, I have a Tab control. I added 12 tabPages in the desired order to it. However, when I run it, the order of tabPages was changed. I could not figure out why. Any ideas? Thanks a lot....more >>

in winxp and up, where the task bar collects multiple windows of one application under a common button, the common button for my program written in .NET has a number, instead of a number and a name Does anyone know what is going on? Thanks Sebastian...more >>

I have a HashTable which has keys and values which are defined in a Class CRoutePoint. I have [Serializable] at the beginning of the CRoutePoint class. CRoutePoint is in the NameSpace "MissionLibrarySuiteIII". For example: Hashtable m_hshPntsRoute = new Hashtable(NUM_NAV_POINTS); ...more >>

I need to genrate a text string from my application and submit the string to my client throught a website. My client ask us to generate the string with their "format". That means in side my string I need to have white space and indentation. For example, the string may look like: "A. this ...more >>

I must be missing something or there is a bug in control... GroupBox text is not painted correctly if located in another GroupBox when visual styles are enabled (Application.EnableVisualStyles()). FlatStyle was set to System and font size 8.25pt, however text is painted like font size was ~16p...more >>

The problem I am having is that under certain circumstances, text fails to draw in some controls and dialogs. The problem occurs primarily in the drawing of ListControls and any Dialogs generated via MessageBox.Show. In the ComboBox, the items are in the dropdown, and can be moused-over, h...more >>

I need a date and time picker that allows me to choose a date from a calendar and a time from some kind of clock. I need something that will allow the user to choose a time and a date without having to type anything, and I need this to be in a single control. Does this thing exist or do I h...more >>

Hi, I'm planning to do some GDI animation and came across some references to using ControlStyles in Forms to do it automatically. The ControlStyles though seems to set Double Buffering on the Form itself - so does this then mean the PictureBox on the Form will also be Double Buffered in ter...more >>

I am making a Mileage Calculator for work to keep track of mileage on my car. I think I am missing something. In the answer box I only want 2 decimal places to right to show. For some reason I get it to work. Here is my code. Private Sub btnCalculate_Click(ByVal sender As System.Object,...more >>