I have a new textbox control with a couple of added properties. The problem is when the textbox is painted there is an extra black line at the top of the box. In the designer for the control the location is missing, so I added Me.Location = New System.Drawing.Point(0, 0) In Initi...more >>

Hi All, I'm going through Microsoft Visual Basic .NET Step by Step Version 2003 by Halvorson. I have performed a Chapter 4 exercise according to the instructions exactly. Using the & character before the desired hot key character in MainMenu1 mnu????Item Text property. The hot key shows...more >>

Hi, Is it possible to remove an event handler once it's installed with AddHandler? Below is the event I added and it works fine. Later in my code I want to remove it. I tried using this statement: (AddHandler mOwner.CmdFirst.Click, Nothing) to remove it, but this does not work. Help! AddHa...more >>

Dear all, I have a question about check box in datagrid. How can set the checkbox is readonly in datagrid.?.. here is the code: Dim tGrn As DataTable Dim Colgrn As DataColumn Dim Grndataset As New DataSet Colgrn = New DataColumn Colgrn.DataType = System.Type.GetType("System.Bool...more >>

Hi, Is it possible to add a treenode to a treeview by using a string that has the PathSeparator as divider in the string? hereis a psedocode (maybe stupid format or coding but I hope you understand what I mean) treeview.pathSeparator = "." [treeview add node] = "1.2.6.1.2.2.4.4.2.1" [tre...more >>

Thanks George, this works they way I imagined it. However now I have the problem of exchanging variables in the "subforms". Here's what I have: 1 parantform (mdi) childform in the parant which is the main form and several "subforms" as controls on the childform Each subform has inputs...more >>

Hi all I am developing application which is providing compression of files. I want to know is there any method or dll in .net which is allowing me to compress file through code and to uncompress file. Microsoft has provided tool in C++ that is cabinet SDK. Is there any equivanent tool in .net. ...more >>

Hi In my form (windows from) 've several text boxes,lable controls and drop down boxes and a button. when i click on this button then the entered in all the textboxes and = data=20 presented on label and dropdown boxes must be saved into a textfile and = the textfile must be converted to the...more >>

Has anyone experienced significant slowdown in the apps the longer they run? I have a VB.Net app the runs fairly "snappy" for about 10 minutes of constant use, then a significant drop-off begins until it becomes unresponsive. Another head-scratcher is if the app is simply started and left a...more >>

How can I hide a column in the datagrid. I have to do it in runtime. Suresh. ...more >>

Where can I get or how can I make a spinner control. -Lou ...more >>

Hi All I am working on converting an application from using a listbox to a list view so that I can have multiple columns showing different parameters. With the listbox I can use listbox.SelectedIndex to set the current selected item - there does not appear to be a simple way to do this iwit h...more >>

Hi, I want to draw 3D buttons by code nice like this one: http://www.download.com/AquaButton-Control/3000-10253_4-10414398.html?tag=lst-0-1 The code may be anyone of .NET languages. Please help me out. Thanks in advance. John Lid ...more >>

I am trying to populate a combo box from a 2 dim array so that I have a displaymenber and valuemember. Creating the array and populating it is easy, but I can't seem to get the datastructure correct so that the combo box returns the slectedvalue rather than the display value. Any sample code...more >>

I have a database application where I need to give the user the ability to add fields. So I need to put up a form with controls representing fields of the database that exist, then allow the user to select a control type and then place and position the new control (field) on the form. I'm hip ...more >>

VB .NET 2003: I have TextBox controls on the pages of a TabControl, then when running the application I try to move the cursor when a TextBox has focus. The Right and Left arrow keys don't move my cursor through the text. Only the Up and Down arrows work for moving the cursor left and right. ...more >>

hi, I would like to display data fetched from database in a row that has two lines in it like for example following two rows are displayed ( the lines are just to distinguish row 1 from row 2: ---------------------------------------------------------- ID1 NAME1 ...more >>

I'm very new in the programming world. I have create a VB.Net app., but I can't see how to add a master volume control for my interface. I seen some examples but no luck so far. All I want is my code to control de volume and maybe a Mute button. All help will be gladly accepted. Jorge ...more >>

How do I get the first selected item of a listview here is what I've tried but it crashes on the item= part. i do have items in the list view and i do have 1 item selected Dim item As ListViewItem item = lvMyStuff.SelectedItems(0) Debug.WriteLine(item.SubItems(2).Text) -Lou ...more >>

How do i add a control to the container control? -Lou ...more >>

Hi Ken, Herfried, Eric and the rest who can help, thanks for your replies. They all worked, more or less. Using the parent panel was ok, but when the form has the focus the main form loses focus and the bar turns grey. works but looks wierd. The MDI from Eric seems best. This brought me to...more >>

Hi, I tried to find how to show an AVI animation sequence like a "filecopy" animation but did not find how to do that in VB. Is there a control in VB.NET or any other way of doing it?? I be very happy for a code example if possible.....feeling a little lost for the moment ;-) br / Mi...more >>

Hi, while I'm searching into a treeview to find a specific node, I find the code duplicating treeview nodes I just can't figure out what's causing this behavior, maybe some of you already encountered this problem. Can someone help please? Here is the code of the functions causing this pro...more >>

In a scrollable control, what if I don't want to autoscroll? Can you controll it manually? Are there scroll events that you can respond to? Thanks. Jerry ...more >>

Hi, Can anybody tell me if it's possible to implement spell checking for a RichEdit TextBox somehow? I've tried implementing a Word object and passing the text to its spell checker, but in the end, Word becomes visible and ruins the whole effect. ...more >>

Is there a way to force a scrollable to control to display the scroll bars even when there are no controls out of view? Jerry ...more >>

I have a test project. I added a new Blank user control(UserControl1.vb), then added 2 Buttons. Now from my Form1.vb I want to dynamically add this control and show it on my form. How is this done, I tried many things but can't get the UserControl to appear? Dim UC As new UserControl1 ...more >>

I'm looking through the code in a sample from MSDN - A databound = treeview... While defining the DataSource property Duncan (the author) uses this = code in the property's Set routine: If TypeOF Value Is IListSource Then Dim myListSource as IListSource myListSource =3D CType(Value, IL...more >>

How do I convert a System.Color to an OLE_COLOR I am using the FontDialog box with ShowColor=True When I get that color I am trying to set a property in an ActiveX control that takes in an OLE_COLOR value. I get an exception whe I try to do it directly Ex: MyActiveXObject.FontColor=FontDialo...more >>

Does anyone know if you can disable an individual item in the listbox. Thanks, David ...more >>

I see info all over the place about auto-resize columns for the winforms datagrid. What about for rows? I would like the current row to expand vertically enough to show all the text in a very long text field. Has anyone done anything like this? My best guess at this point is to use a grp...more >>

Hi, I have two questions about progressbar control in VB .NET 1. How to change default system color of the bars in progressbar 2. How to change style of the bars (I want progressbar to be smooth not in squares)? regards from Sinclair...more >>

I have a main group box that conatiins other sub group boxes. I want to be able to scroll the group boxes that are contained within the main group box??? -Louie ...more >>

HI, it's possible to save a windows form as XML? Thanks and regards Massimo...more >>

Greetings All... I'm creating a BaseClass that will connect to a database and retrieve the all the properties values from it. So far so good. All the inherited classes retrieve it values from the database... IF the properties are PUBLIC. I'm using Reflection GetProperties and GetMemebers ...more >>

I have this code, LoadData_2, that is triggered when the content of a textbox changes (passed to the procedure as SearchString). I want the datagrid to reflect the changes, but can't get it to work - I'm doing it wrong, but don't know where. If I use LoadData, instead of LoadData_2, it refle...more >>

I was wondering if there is a way to draw a graphic, save it to an arraylist, and then use the already drawn graphic when needed in a listview? ...more >>

I have a user control that I need to use alpha icons for with a listview..the alpha channel is lost of course and I know that in an application I can set the styles and use a minifest, but how can I set it up for a user control? ...more >>

I wist to prevent user from resizing column in winform datagrid control. Any ides / technique / clues? -- Thanks and Regards Kool Dude...more >>

How do i get a smooth trackbar(Slider) control, one without the hash marks and incremental changes. i need a smooth slider control that will have very small increment callbacks. -Lou ...more >>

Hi There, In desperation I was wondering whether anyone could cast their eye over a small problem I having. I am attempting to create a user control which basically consists of a DropDown list. Now, I wish to both retrieve values from this drop down list, and also to change the values that f...more >>

I am working on a custom listview sort of like the one from Microsofts fotovision. I can do the drawing of the items, but the item bounds are to small..how do I correct this? TIA ...more >>

I forgot which event I should use if I want to trap when a user moves = from TabPage1 to TabPage2. I know this is real easy but I forgot which one to use. Thanks, ST...more >>

Windows Forms. DataSet with several tables and relationships. Table 1 has its children in table 2. Table 2 has its children in table three. Three textboxes show info from Table 1. DataGrid 1 show the child records from Table 2 properly. DataGrid 2 is showing all records in Table 3. How do...more >>

Can someone point me to an example of creating data bound custom controls? I want to create my own customized listbox that I can bind to a custom collection of objects. Thanks. Jerry ...more >>

I am trying to set the witdth of the datagrid's 1st column so that the second column butts up next to the edge. But this doesn't work. Any ideas?? Dim colJD As New DataColumn Dim colAmt As New DataColumn 'Define Column Job Description colJD.D...more >>

Hi All, Anyone know how to change color for a 3D button like this button control does? http://www.econtechvn.com/en/aquabutton_detail.htm I see it is really cool. But, don't know how to do that. Thanks, TonyVal ...more >>

Hi, Is there any method to edit the text within the RTF control e.g. allow the user to select a text and then select from another control the size of the text Thank you Shmuel Shulman SBS Technologies LTD ...more >>

Our team has been having trouble with VB.Net dropping the TrueDBGrids off of the forms. It will be fine for weeks, then the problem will strike again. You go to compile and the grids are gone. I thought it was a problem w/ CompentOne's control until yesterday when tab pages got lost too. Is ...more >>

Hi all i am having problem in listview which i am using in vb.net applicication. I am getting following two errors. There are not freqent errors but if i run my app for nearly 30 min then these errors are coming. So i am not gettng exact scenarion for these errors. At a time of calling meth...more >>