DataGridViewCheckBoxColumn Not Showing Up?
Jun 2, 2011
It's been a while since I've had to add a CheckBoxCol to a DataGridView, so I copied and pasted the code directly from the example shown in the MSDN library page here: [url]Anyway -- the column is added as expected however, there is no checkbox! (see the column "Accept" in the image I've posted). I was hoping I am missing something easy/obvious, and I've had success with this before in other apps so this is becoming frustrating.DGV's Datasource is set to a datatable found in a Dataset. Everything loads just fine. No errors.
[code]...
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Apr 21, 2012
I'm trying to define a column in my DGV that has a DataGridViewCheckBoxColumn. I've set the "FalseValue" to 0 and the "TrueValue" to 1. When I run my app, the column just shows 1's and 0's which were retrieved from the Database. NO CHECKBOX appears!
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Feb 7, 2012
I have a datagridview that is bound to an access database. The first column is a checkbox, the second is first name, the third is last name, the fourth is start time, and the fifth is end time. Is there a simple way that can either be explained to me, or demonstrated with some example code to have the data copied from the first name, last name, start time, end time when the checkbox is checked in the corresponding row? (there are other columns in the datagridview, but i only want the first four cells copied that are in the same row as the checkbox to be transferred to the second datagridview. This would also have to be able to work for each checkbox in each row)
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Apr 12, 2009
DataGridViewCheckBoxColumn - Only 1 checkbox can be checked at a time?????????????//
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Oct 13, 2009
I have a DataGridViewCheckBoxColumn and I am trying not to allow more than one checked boxes in the column. So after one is checked, when user tries to check another one, i want to prevent that and not have more than one checked box in entire column. I used whole bunch of events but nothing is helping me... Some time it seems working but if i double click the checkbox, it puts the checkbox... sometime it puts the check mark on my third click (not on first, not on second but on third...) What i want is only one checked box and if use tries to click another one don't let it happen.
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Jan 9, 2012
For some reason, I can't change the checkbox from True to False when I click the checkbox in my DataGridViewCheckBoxColumn called "Select". I setup my DataGridView (dgvWBFOrphans) with 5 TextBox columns that are Read-Only and 1 CheckBox column that is not Read-Only. I use a stored procedure and data reader to load the DataTable which is used as the DataSource for dgvWBFOrphans. I want all the checkboxes to default to True and allow the users to uncheck certain rows in the "Select" column.
Dim dtOrphans As New DataTable
Using cnn As New SqlClient.SqlConnection(clsDBConn.clsDBConnections.prpConnString)
cnn.Open()
[code]....
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Sep 9, 2010
How can I handle aCheckedChanged event for a cell in a DataGridViewCheckBoxColumn? If applicable, I prefer VB.NET answers over C#, but I'll accept either.
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Apr 12, 2010
I want to be able to only set one record in my tables as a default value. So when I check the checkboxcolumn of one row in my datagridview all the other checboxes in the other rows must be set to false. How can I do this?
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Jan 10, 2010
i have added 5 datagridviewcheckboxcolumns to my datagridview programmatically. say i have 20 rows, that equals 100 checkboxes. how can I set each one to checked when I click a button.also i have a comboboxcolumn and only if an item is selected in the combobox for a row, then the rows checkboxes must get ticked.
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Mar 31, 2011
I have a problem with the combox its only displaying the first item in the list its being populated by a webserice call the drop down in question is comboboxmodel now the manufacture one is fine and sets as it should any reason as to why the comboboxmodel would not. [code]
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Apr 21, 2009
I have added a dll to the gac by using the following line of
C:WINDOWSMicrosoft.NETFrameworkv1.1.4322Gacutil.exe /i TARGETDIR "c:mydll"
When I open vb 2003 and try to add a reference to a project, I dont see the DLL. what I must do to be able to add it as a reference?
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Jan 2, 2010
I have built an application where there is a MDI parent form and other forms which i have not declared as Child forms but have set these forms not to show in Taskbar. While the application is running, if i have any of these forms open and i switch over to any other application other than this and when i come back to it, all these forms hide. I cannot reopen it or see it anymore.. Why is this happening?? how can i sustain these forms as it is even when i leave the application.LuxCoder
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Oct 31, 2009
Now I not had much use with VB.All I want to know is if there is any way you can have a ruler and grid showing while you put together a GUI?
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Nov 23, 2009
How would I go about showing Album Art in visual basic.I use the windows media component and I would like to show the art in a picture box.
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Apr 20, 2012
I saved image in sql server database.Now I am getting image from sql server database, by the following code but my image is showing in image control.But in this code i am saving this image in project directory. I want this image without saving, direct from my sql server database[cod]e...
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Feb 23, 2012
I have added a MDI parent to my application and assigned all new forms to it (i.e. Form1.MDIparent = myMDI). When i hide and then show a form, it loses all of the data previously typed in the textboxes.
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Jun 23, 2011
I've done everything. Deleted the code and dragged new controls from the toolbox, renamed, tried from javascript -- I just can't get this freakin' modalpopupextender to show. Wasted 3 days.I'm trying to show it via VB code-behind in the on-click even of the login button. Everything else executes in the button's code, just not this line:[code]
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Nov 10, 2010
I'm trying to finish up this project for a class and I can't figure out why its not putting in the lstbox the depreciation of the items life,
[Code]...
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Dec 11, 2011
For counter As Integer = 0 To gamecontrol.unitlist.Count - 1
If gamecontrol.unitlist(counter).isAlive = True Then
'create picturebox if not already existing
[Code].....
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Oct 22, 2010
i found that sometimes i do not get any replies in my thread.
well that's normal. but the weird thing is.
sometimes when i check back in a days after that. it still has no replies. so i didn't think much until suddenly a few minutes later i had more than 3 replies. so happy i was.
i checked it and the replies were maybe a few hours after i posted my thread. and some were a few hours ago! i don't know if something is wrong with me or the computer.
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Jun 22, 2011
i am trying to show if the computer is connected to the internet and showing the network name at the same time.example (when connected) "Connected To NetworkName"
[Code]...
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Jan 26, 2012
I have been dynamically adding user controls to my panel. This user control has a height of 105. If I have my FlowLayoutPanelwidth to only show 1 "column" of controls, it will only display 296 of them. The rest of the controls are grayed out at the bottom of the flowlayoutpanel. If I widen the flp to allow 2 "columns" of controls, I can see 592 of them, with the remainder grayed out at the bottom. I have gone in and resized the user control to make it shorter in height, which works in some respects (i.e. it works when I have two columns, but not just 1), and can go forward with this work-around.
So, I guess my question is, why does the FlowLayoutPanel behave in this fashion? It seems (based on what I saw) that there is a limit to how much data the FLP will show at one time.
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Jun 2, 2011
I have developed a small application to call several powerpoint presentations. The user will enter the powerpoint number and the powerpoint will be shown in Viewshow form. However this is not the case. The powerpoints are showing in the normal powerpoint form where the users can edit the texts in the presentation even though the powerpoint presentation are saved as viewshow. Please help with the code to display powerpoint in VIEWSHOW form:(;(If this is displayed in a form is fine, part my working code is as shown below;
Imports PowerPoint = Microsoft.Office.Interop.PowerPoint
Imports Office = Microsoft.Office.Core
Imports Graph = Microsoft.Office.Interop.Graph
[code].....
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Apr 19, 2011
In a Winform application, I'd like to animate the showing of a form a bit like when an email comes in and the notification window raises slowly from the bottom of the task bar.
I've got a few ideas involving timers and resize but they all seem complicated and/or clumsy so I wonder if anybody could suggest a simple way to do this or some magic function I could use to do it automatically.
I'm using VS 2005 and .NET framework 2
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Apr 10, 2012
In my application i wrote below code for 404.
Sub Application_Error(ByVal sender As Object, ByVal e As EventArgs)
Dim exc As Exception
Dim readdInfo As New NameValueCollection
[Code]....
But when i try to run above program i am getting Context.CurrentHandler is null exception. If i keep Response.Redirect in place of Server.Transfer I am getting 301 header. I've used [URL] for header checking
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Oct 13, 2011
I have a form that has two buttons and a lable on it. The first button shows up and works fine (it opens a file). But the second button does not show up on the form at all. Yes, the Visible property = TRUE. I also have a second label on the screen, but it is not showing up either.
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Sep 24, 2009
I changed a resource image and in my design view I see the changed image. I build it but when I run the exe I see the old image.
What do I have to do to refresh the exe? I though building refreshed it.
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May 12, 2012
I want to make a wordpad i want to put a combobox with all the fonts the user have but i google it and didn't found anything (maybe i wrote a bad keyword)
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Jun 23, 2010
when i call my Form2.Show() i need to make a combobox in Form2 show its "drop down". in other words i do not wish for the user to have to press the combobox before it shows its "drop down" and would like to do it automatically.is this possible?
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Jun 5, 2011
I m using visual studio 2010, I am trying to show the week days in Combo box but its not showing when i run it.
Class MainWindow
Private Sub ComboBox1_SelectionChanged(sender As System.Object, e As System.Windows.Controls.SelectionChangedEventArgs) Handles
[Code]....
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