How to access the check box control dynamically to the content place holder of content page?

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I m binding the checkbox control to the grid view dynamically. Multiple columns and rows in my grid view. I have to refer the checkbox which is placed in grid view columns and rows that if it is checked or not in code behind. I m using Master pages too. Any Idea?????????

Posted 16-May-14 0:56am

R@M-ITcian

Updated 16-May-14 19:26pm

v2

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j snooze 16-May-14 16:50pm

Your question and explanation are unclear. You are trying to add a checkbox to a placeholder or you are trying to access a checkbox inside a gridview? Which is it?

R@M-ITcian 17-May-14 1:26am

I have added check box control dynamically. But now my problem access it

karthik Udhayakumar 17-May-14 1:29am

post your code dear:)

R@M-ITcian 17-May-14 1:34am

Public Sub AddCheckBox() 
For Each row As GridViewRow In gv.Rows 
For i = 0 To dtop.Rows.Count - 1 
If row.RowType = DataControlRowType.DataRow Then 
Dim cb As New CheckBox 
 
row.Cells(i + 2).Controls.Add(cb) 
End If 
Next 
Next 
End Sub 
 
Protected Sub Page_PreLoad(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.PreLoad 
If (Not IsPostBack) Then 
Dim dtop As DataTable = BOLayer.GetDTable("") 
For j = 0 To dtop.Rows.Count - 1 
Dim tf As New TemplateField() 
Dim cb As New CheckBox 
tf.HeaderText = "" & dtop.Rows(j)(0) & "" 
gv.Columns.Add(tf) 
Next 
End If 
End Sub.

For this in click event i want to check the checkbox state by access t

j snooze 19-May-14 9:02am

What I've done in the past (right or wrong, I don't know) is when I add a dynamic control I store the control id in delimited list hidden field so in your case. 
Add a hidden field and 
HiddenControl1.value += cb.ClientId + "|" 
or whatever your preferred delimiter is just so you know its client id, put this right after you add it to your placeholder.
Then to get the control on postback you should be able to reference the control per the 

Dim CheckboxIds() as string = HiddenControl1.Value.Split("|") 
Then loop through and get the checkboxes 
Request.Form(CheckboxIds(i)). 
 
Sorry this is not a full code sample, but to give you an idea of how to get at the dynamic controls on postback.

R@M-ITcian 27-May-14 8:30am

Thank you snooze for your idea..

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