Hi all I have problem regarding Group box in vb.net Currently i am using group box and placing option button in it. I want to set background color for group box. But the problem is after setting background color, the color appearing outside the boundary of frame control. I want the color to be...more >>

Hi All, When you add an object to a combobox, and run the application, you'll get something like this: System.Windows.Forms.Button, Text: Button1 (for example). Is it possible to have just the text/value in the object to be displayed in the combobox, yet at the same time when retrievi...more >>

Hi, I'm experimenting with the Serial Port in VB.NET 2005. Although it isn't that easy to get any feedback from my COM-port as I thought it would be... How can I read all the Data that the port sends back? I tryed with SerialPort1.ReadLine, but that blocks the application and takes a lot ...more >>

How do you act on a user control's (.ascx) button click event in the containing page (.aspx) ? Should event bubbling be considered? Does this even make sense to try and do? Should the user control's button click just 'submit' the page and then let the Page_Load event get the user control ...more >>

Hi all I would like to write a window application which allow me to perform grouping function in a datagrid, but all of the grid with grouping function requires money. May i know if there any opensource/freeware datagrid project availiable ? Thx for your kindest help Regards, Norton ...more >>

I want retrive value from specific row,column of a datagrid. In VB 6 if I write this code in DataGrid on DoubleClick, I will get the value of row,column depending on the record that I have selected. Dim ASID As Double ASID = dgPS.Columns(0) How I will achive this in VB.Net? Partha ...more >>

I am primarily a web developer, but I am branching out for this project into the world of Windows Forms. I am looking for any help, examples, samples to show me how to retrieve text from a RichEdit20a (or RichEdit20w) that exists in another application running on the same box. This is the o...more >>

Hello there Need to write strings to a file. What classes should I use, instead of using createObject("scripting.FileSystemObject") and open textfile method. Thanks in advance Sameh ...more >>

(I haven't done much OO programming, so please be understanding ...) In my user control I have a Dim statement (Dim mintAge As Int32 = 0) following the Class statement but before the first Property statement and all Subs. But when I reference mintAge within the InitializeComponent sub I get a...more >>

I've created a User Control and given it a property using the folloing code ... <Description("AgeP (in days)"), _ DefaultValue(5)> _ Property AgeP() As Int32 Get Return AgeP End Get Set(ByVal Value As Int32) AgeP = Value En...more >>

Hello Can I bind DataGrid to SQLDataReader. If some body can help me in this issue. Regards Partha ...more >>

Hello, My problem is: I got a Login form, so once the user enter vaild Username & Password another form opens. How do I close the login form? Can any body help me! ...more >>

Can anyone tell me if there is a term for the control that looks like a command button with a droplist arrow on the right side? The arrow works like a droplist that lets the user change the caption on the command button. In Outlook 2003, I believe the New Contact dialog has one for entering ad...more >>

Hi, I use firebird database in my problem, but when i update a dataset, an Exception was throwed and the message is: "Dynamic SQL generation for the UpdateCommand is not supported against a SelectCommand that does not return any key column information". I don't know why?...more >>

Hi, Is there a grid out there for WebForms where you do not bind to a DataSource? Regards Darren ...more >>

i'm writing a VB.NET component that gets called from an ASP page. i want the component to continue to process while it sent back a response to the asp page that it's ok. how do i declare that the component to conintue to process and the asp page can go on? i'm sending out emails and i don't n...more >>

I want to place a checkbox in a listview's subitem? but no way, how can i do it?...more >>

Hello all: I have a datagrid bound to a dataview. When my user enters a new row, and selects an Update option, the new row is inserted and the new ID for the row should be displayed. However, although the insert is occuring correctly, the grid is not refreshing to display the new ID (which is...more >>

I have the above problem with an inherited form, which was working previously. I have a base form, frmBase which is inherited by my user forms. When I try to 'design' either frmBase or a user form, I get either the 'Specified Cast Is Not Valid' error, or the 'Ambiguous Match' error. Both...more >>

Hi I am a beginner working with VB.net Ho to: find data in another column using the index number "ParamID", also the possibility to updata the data in "ParamVal". This is a Parameter table "tblParameter" in an access BE-database ParamID ParamDescr ParamVal 1 User xxxxxx ...more >>

Hi, how can i reference page object from a user control i am trying to use RegisterClientScriptBlock in a .ascx.vb file? Thanks ...more >>

I have a dataset whose source is a SQL 2k stored procedure that I am trying to display in a datagrid. This datasource has 4 columns that I am interested in here, a text column and 3 value columns corresponding to permissions to certain data classes. I want to put the permission values in c...more >>

I haven't got a "Windows Forms" tab in my toolbox. I think I accidentally right clicked and deleted it. How do I get it back? -Jerry ...more >>

Hello there Need to create a context menu in runtime, everything is ok except that I need to check if a menuitem called "whatever" already exists in the context menu. Below is the code I use that gives an "Object reference not set to an instance of an object" error Any ideas how I can do that....more >>

I am attempting to set up a datagrid that will 1) display a subset of data from a SQL Stored Procedure in a different order form how SQL returns it, and 2) display 3 of the columns using pulldowns. I have gotten code for both from the www.syncfusion.com site, but am having trouble making them w...more >>

Can someone point me to an article or a good source of information on how to create a custom date control? Using the datetime picker control in our app is not an option, so I'd like to create a custom control based on the text box that accepts valid dates (such as thru a mask) or whatever. ...more >>

Hello, I have a text box with custom border, I am attaching the code for my control below. Basically my derived control draws custom border in WM_NCPAINT message. This control works fine when placed on a .net form. But when i change the opacity of the form to anything other than 100...more >>

Hi All , I would like to use define a short cut for my menu item like "&File" (like the steps illustrated in http://www.developerfusion.com/show/1770/5/) I set the showshortcut property to "True" but i wanna want the underscore "F" shown whenever the user load the form, instead of pressing "A...more >>

Hi, can anyone convert this C# code to vb.net? private void Page_Load(object sender, System.EventArgs e) { Control c = this.FindControl ("myBody"); c.Attributes["onresize"]="resizeHeights()"; c.Attributes["onfocus"]="IsAlertNeeded()"; ...more >>

hi all i have one problem at a time of using foldernameeditor.folderbrowser in vb.net 1.0. At a time of opening browseforfolder dialog i have to set default path to some folder say "C:\\test". but i haven't found any property or method to set directory path at a time of opening browseforfolder...more >>

Hi all, When I copy the web content from a browser (IE) and then paste it to a RichTextBox control, the content pasted is totally a messy. All images disappeared and formatting is gone! However, if I paste it to a Microsoft Word document, the outcome is very good. Image and formatting ar...more >>

Hi All, How can I select multiple rows in a DBGrid? I have the grid set up so that the entire row is selected when clicked on, and the cells are not editable. I am only able to Select Multiple rows if I click on the Left Column Boarder; but, I have that hidden and it's not practicle. Any...more >>

Hi, I'm putting together an app that has the COM Microsoft Web Browser embedded into it. The point is I have to download and parse through a few webpages that contain data that needs to be extracted, there are several of these pages and the users don't want to have to save each one then open ...more >>

Hi All, I need some help. I have a form that is called, and can be called in multiple instances. For instance, I have the following procedure: Private Sub OpenForm() DIM NewForm as New frmTest NewForm.Show End Sub From this form "NewForm", I can open another form "FRM2" that all...more >>

Hi I wrote a vb.net program which basically works as an internet browser. I have two last things i need to do but i almost tried and searched for everything did not have a good answer. My browser works as a live web chat client that keeps refreshing itself from the internet page assigned. I...more >>

Hi, Is ther anyway I can present a html file on a win form? I have tried richtextbox. However, it can only accept text or richtext file format. I would like to use this feature to, for example, present a html email in a form, may allow user to some editing as well. Any help is higly app...more >>

Cound anyone provide me with some URLs for the use of treeview control (with checkboxes)? Specially on how to dump the tree to an xml file. Thanks, Shenc -- ...more >>

I have written a couple of applications that use the Crystal Reports that comes with my Visual Studio Ent Arch 2003. The applications work beautifully on the development machine. I made install programs and tried to install the applications on a few different machines. The applications all c...more >>

I am experimenting with binding collections of custom objects to a DataGrid. I am having problems with the DataGridBoolColumn style that I am mapping to my boolean properties: I cannot turn off the tri-state behavior. Setting AllowNulls = false does not work. I also get an error "Cannot Winen fr...more >>

Greetings! I am trying to figure out how to work with the DataGrid control. I am able to bind it to a SQL Server view by loading the view into a DataTable and setting the grid's DataSource property to that DataTable. The grid shows the contents of the view and sorts them very nicely. But wh...more >>

is there an equivilant to the Limit To List property in VB.net 2003? I can't seem to find it, but I do not want users to be able to type in my comboboxes and try to choose something that isn't in the list. any help would be appreciated. ...more >>

Hi I know there a way of detecting which control has focus on a form in vb.net but I cannot remember it. Can someone jog my memory please. Thanks --- Outgoing mail is certified Virus Free, so am I. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.745 / Virus Da...more >>

I am using MS Visual Studio 2002 and I am experiencing this issue with one of my VB.NET applications. This is a complex form and I don't understand why this error message pops up. The program compiles fine but when I try to run it, I get this error message. The strange problem is that on another ...more >>

Dim CurrentTabPage As Control CurrentTabPage = DirectCast("tcontrol.SelectedTab.Name", Control) MessageBox.Show(CurrentTabPage.Name) I get a SPECIFIED CAST IS NOT VALID Simply described: I want to determine the name of the tabpage that I am on (it is created dynamically) and then ...more >>

Hi, all, I have a VB .NET (VS 2003) application that has a dropdown list or dropdown combo with checkboxes as a "3rd party control" linked to a ComponentOne TrueDBGrid cell button click event. When the user clicks on the grid cell, a list (either standard list or check combo) drops down wit...more >>

I use in my code: ConstLeftMargin = PrintDocument1.PrinterSettings.DefaultPageSettings.PaperSize.height\40 to set left margin for my document. However, when printer is uninstalled,it crashes. How do I check if printer exists before accessing PrinterSettings object? Thank you...more >>

I am building an app in VB.NET. I have code that dynamically creates a textbox control and populates it based on some values in a dataset. The textbox is disabled upon creation. I am also creating a command button, that when clicked should enable the textbox. However, since I created ...more >>

Is there a .Net newsgroup comparable to m.p.vb.3rdparty dealing with third-party (ie non-MS) controls, both commercial and shareware/freeware? Or would this be the place to ask about such controls? JGD...more >>

I'm working with a COMM app that receives data from a serial= port=2E I display this data into a listbox control using VB =2Enet=2E= Hence, data is "flying" into the listbox for display=2E My= question: Is there a limit on the # of entries for a listbox= control? I believe the limit is ...more >>