VS 2008 - Check If CheckBox Is Checked?
Jan 16, 2011I'm trying to see what checkbox is selected is checked
With this code.
[code]...
Unable to cast object of type 'System.String' to type 'System.Windows.Forms.CheckBox'.
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VS 2008 How To Check If Checkbox Is Checked
Feb 24, 2011I have about four columns inside my listview.I also have checkboxs that are located to the left of the listview. A checkbox is added to first column but how would I check if the checkbox is checked?
View 2 RepliesVS 2008 : Check If There Is At Least One Checkbox Checked?
Oct 31, 2010How can I check if there is at least one checkbox checked?
View 16 RepliesCheck Whether Checkbox Is Checked Or Not?
Oct 3, 2010I have a datagridview with a checkbox column.i want to check whether checkbox is checked or not.If the checkbox is selected it should output as "True" in messagebox and if checkbox is not selected it should giving me a message "False".
View 3 RepliesAsp.net - Check If A Checkbox List Item Is Checked/unchecked?
May 14, 2012I have a checkbox list which is filled with entries from my database on page load. I need to update an entry in my database when a item is checked and when an item is unchecked. Right now I am doing the following:
<asp:CheckBoxList id="check1" AutoPostBack="True" TextAlign="Right" OnSelectedIndexChanged="Check" runat="server">
</asp:CheckBoxList>
And the function:
Sub Check(ByVal sender As Object, ByVal e As EventArgs)
Dim sql As String
If check1.SelectedItem.Selected = True Then[code]....
The error is: "Object reference not set to an instance of an object." Is there a better way to check if a list item is checked or unchecked?
Check If Only The Checkbox Is Checked Without Having The User Select The Node?
Dec 30, 2010How can i check if only the checkbox is checked without having the user select the node.
This code works, but the user has to check the itm first
If TreeView1.SelectedNode.Checked = True Then
VS 2005 NetworkStream.Read - Query To Check If Chkactive Checkbox Is Checked Or Not
Jul 15, 2010I have the following update command which needs to be amended, I want before the query to check if chkactive checkbox is checked or Not, if checked then True value to be added to the tblProjects otherwise if unchecked False to be added.
[code]...
Javascript - Insert Checkbox Checked Value When Checked To Textbox As Comma Separated String
Nov 9, 2010Insert checkbox checked value when checked to textbox as comma seperated string in vb.net or javascript
suppose i have 3 checkboxes and and 1 textboxes in my webpage.aspx
when i checked checkbox1 and checkbox2 then in textbox it will appear as 1,2 only on checkboxes checked event ...
and i want its revert also :
if i set textbox de
VS 2008 : Tell If A Listview Checkbox Is Checked?
Nov 9, 2009how do i check if a listview checkbox has been checked and prompt the user on what he/she checked.
View 1 RepliesVS 2008 Better Way To Add Text To A Box After Checkbox Is Checked?
Mar 23, 2009When each check box is checked I want the textbox to be updated like in the picture. Is there a better way to do that for the rest you see there other than coding one checkbox at a time?
View 37 RepliesVS 2008 Change RTB.location When Checkbox.checked?
Jun 14, 2009Whats wrong with this code?
When a checkbox is checked, the richtextbox1 will move to a new location in form3.
If CheckBox1.Checked Then
Form3.RichTextBox1.Location = (28,08)
End If
VS 2008 Change The Order Of Checkbox.checked
May 17, 2009I'm making a program where the order of which check box is checked matters. At the moment theres a loop (as shown below.) but in which order it adds things to my list box... is... iffy. Is there a way to change the order? I tried 'Tab order' but that didn't seem to work.
[Code]...
VS 2008 Custom CheckBox Checked Image?
Oct 27, 2009Is there a better image then a check for a checkbox or would i have to create my a new control?
View 6 RepliesVS 2008 Get Checkbox Checked When Restart The Program?
Mar 9, 2011how you could let you're programme remember which checkboxes were checked the last time and which weren't. So, for example: I've checked two out three checkboxes in my form (form1) at moment x, I closed the programme and reopend it at moment y and the same checkboxes are still checked.. (doesn't care if I have to press a button first..)
View 7 RepliesVS 2008 Get Each Checked Checkbox Inside The Treeview?
Jan 27, 2011I'm trying to get each checked checkbox inside the treeview. I was thinking of looping inside the checked items, but the code just get stuck on first checked textbox and displays it over and over again.
Here is the code,
Dim Box As ListViewItem
For Each Box In ListView1.CheckedItems
MessageBox.Show(Box.Text)
Next
VS 2008 - Access Checked State Of CheckBox From BackgroundWorker?
Sep 16, 2009I am trying to access the checked state of a CheckBox from a BackGroundWorker thread. I am utilizing properties and it seemed to work just fine. However, I'm using 10-15 CheckBoxes and I think using the InvokeRequired property would probably be best. I've looked over JMC's thread that talks about how to access controls from the worker thread a bunch of different times and I can't seem to grasp the concepts. When it comes to the InvokeRequired property, I suppose I understand why it is needed. But I'm not sure if I understand it completely.
From the example that JMC provides:
vb.net
Private Sub ResetTextBoxText()
If Me.TextBox1.InvokeRequired Then
Me.TextBox1.Invoke(New MethodInvoker(AddressOf ResetTextBoxText))
Else
Me.TextBox1.ResetText()
End If
End Sub
If I'm not mistaken, this tells us that if invocation is required to access the control, then we access via the MethodInvoker if not, then we just access to directly? So, if I need to check the checked state of a check box, I know I can just put a conditional statement after the Else line if I can access it directly. But, if I can't how would I use MethodInvoker to check the checked state? And then, when calling it from the worker thread, would I just call the sub?
Create A Checkbox In Form2 That Says If Checkbox 1 Is Checked Then Show Picture 1 In Form 1?
Apr 15, 2011I have a question, I can't really find the answer...Basically I have 2 FormsIn form number 1 I have 2 pictureboxes. I want to create a checkbox in form2 that says if checkbox 1 is checked then show picture 1 in form 1
View 1 RepliesVS 2008 Add Multiple TextBoxes Values Depending If Corresponding CheckBox Is Checked?
Aug 2, 2009I have four textboxes that only accepts numeric data.On each box is a corresponding checkbox.I want to have a button that will get the total sum of all textboxes wherein their checkboxes are on checked state.
View 1 RepliesVS 2008 Override The Method ToString() For The Property CheckBox.Checked?
Mar 13, 2011How would I override the method ToString() for the property CheckBox.Checked?
View 2 RepliesHow To Check And Uncheck All Asp.net Checkbox On Single Checkbox Check
Mar 7, 2011how to check and uncheck all asp.net checkbox on single checkbox check ?I have 5 asp.net checkbox on webform i want when 1 single checkbox checked then all checkbox will be cchecked and if checkbox is unchecked then all checkb ox will be unchecked ..
View 2 RepliesVS 2008 - Check A CheckBox / RadioButton In A Webbrowser?
Oct 4, 2009How do I check a CheckBox/RadioButton in a webbrowser?
View 2 RepliesGet Checked CheckBox Tag Value?
Aug 8, 2010I have grouped some checkbox in GroupBox1, 2, 3 respectively. Now I want to know the tag value ( I am using a TAG property to assign a some value to radio button ) of check box which is checked in either of the groupboxes.
View 1 RepliesHow To Checkbox Checked
Apr 24, 2012i have one checkbox that is not header checkbox of gridview and one gridview i want to click on check box gridview all row selected
View 1 RepliesIf Checkbox Is Checked Run 'something'
May 14, 2009I've got a simple Visual Basic 2008 Express Edition form which looks like this:[link Screenshot of simple form][1]I need some help with a skeleton script, which checks to see if each checkbox is checked or not. I've got a set of Word templates which all contain a macro.And I want to run the macro of each template, if the template exists.[code] know this pseudocode isn't correct at all, because I'm kind of a beginner, and designer over a programmer. But I've just started learning and I know this is pretty basic.it's just getting an overview of the logics in programming. And I think that getting to learn how to do this will help me with other things as well.
View 2 RepliesSet Several Checkbox To Checked?
Dec 27, 2010i'm trying to set several checkbox to be checked based on retrieved value from database.So when i load the data,if the value is the same with checkbox name,then it will be checked.Is it possible to do that?
View 2 RepliesCheckbox Selection - When Click On A Checkbox You May Not Beable To Check Another
Feb 15, 2010I've wondered if i can make it so when i click on a checkbox you may not beable to check another. And i do not want to use radio buttons
View 9 RepliesVS 2005 Check Grid Items If Checked ListBox Items Checked?
Aug 21, 2009Why is this code having the opposite effect? If It's checked in the checkedlistbox it's not check in my view, if it's not check in my checkedlistbox it is checked in the grid.
EDIT: More specifically. The CheckState.Checked is always the opposite. .Checked means it's not checked.
Private Sub CheckedListBox1_ItemCheck(ByVal sender As Object, ByVal e As System.Windows.Forms.ItemCheckEventArgs) Handles CheckedListBox1.ItemCheck
Try
[Code]....
Checkbox Checked If True
Apr 30, 2010I have the function below which I call onload, I want to be able to check the checkbox (chkactive) if the ProjectStatus is set to True, how can I do that please.[code]
View 4 RepliesCheckbox In Datagrid Not Able To Be Checked
May 17, 2011I have the following code:
[Code]...
and when a user clicks on cell4, it's supposed to add the value of "Holiday" to my database and all of the data from that line. What's happening is that I can't even click on the checkbox.
Checkbox In Datagrid Not Able To Be Checked?
May 17, 2011I have the following Private Sub holidaysaveButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles holidaysaveButton.Click For Each dr As DataGridViewRow In DataGridView1.Rows
[Code]...
and when a user clicks on cell4, it's supposed to add the value of "Holiday" to my database and all of the data from that line. What's happening is that I can't even click on the checkbox.