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How to send GridViewRowEventArgs to OnCheckedChanged

Posted on 2006-06-29
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Last Modified: 2010-05-18
How to send GridViewRowEventArgs to OnCheckedChanged? It's not possible to just replace EventArgs with GridViewRowEventArgs.

    protected void Velg_CheckedChanged(object sender, EventArgs e)
    {
        Label2.Text = "asdasdasd";
    }
0
Comment
Question by:m-jansen
15 Comments
 
LVL 9

Expert Comment

by:Hamed Zaghaghi
ID: 17009260
It's not possible to replace these types
0
 

Author Comment

by:m-jansen
ID: 17009309
how to deal with it?
0
 
LVL 10

Expert Comment

by:aki4u
ID: 17012418
what are you trying to do?
0
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Author Comment

by:m-jansen
ID: 17012469
>what are you trying to do?
when a checkbox is clicked another c# method should be run
0
 

Author Comment

by:m-jansen
ID: 17012483
I have actuallt almost figured out how to deal with it like this.

   protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            CheckBox Velg = (CheckBox)e.Row.FindControl("Velg");
            Velg.Attributes.Add("onclick", ""+ list.Add(32) +"");
        }
    }

but the value 32 does not add to my list when I click the select button
0
 

Author Comment

by:m-jansen
ID: 17012495
ops I mean the checkbox
0
 
LVL 10

Expert Comment

by:aki4u
ID: 17012739
list.Add(32) is a codebehind(server side) what will not work with "onclick" event (client side).
0
 

Author Comment

by:m-jansen
ID: 17012773
If I can't use onclick and not use OnCheckedChanged. What to do then? There have to be a someway to handle this?
0
 
LVL 10

Expert Comment

by:aki4u
ID: 17012853
you could use OnCheckedChanged, I don't see why not.                                      
0
 

Author Comment

by:m-jansen
ID: 17012907
Good. How would you suggest to it?
0
 

Author Comment

by:m-jansen
ID: 17016315
I need to send a GridViewRowEventArgs to the OnCheckedChanged method. How to do it? It sounds difficult to me.
0
 
LVL 10

Expert Comment

by:orbulat
ID: 17016431
..
CheckBox Velg = (CheckBox)e.Row.FindControl("Velg");
Velg.CheckedChanged +=new EventHandler(Velg_CheckedChanged);

....

private void Velg_CheckedChanged(object sender, EventArgs e)
{
    ...
    //do your stuff
    ..
}
0
 

Author Comment

by:m-jansen
ID: 17016475
protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e) {
CheckBox Velg = (CheckBox)e.Row.FindControl("Velg");
Velg.CheckedChanged += new EventHandler(Velg_CheckedChanged);
}

protected void Velg_CheckedChanged(object sender, EventArgs e) {
string s = e.Row.Cells[0].Text;
}


This code does not work.
0
 
LVL 10

Accepted Solution

by:
aki4u earned 400 total points
ID: 17017794
"I need to send a GridViewRowEventArgs to the OnCheckedChanged method. How to do it? It sounds difficult to me."
-you can't do this

To respond to a checkbox CheckedChanged event in DataGrid, you need to specify in html code of the CheckBox: OnCheckedChanged="Velg_CheckedChanged" and AutoPostBack="True".
Now, if you want to get some information about the cell where checkbox is copy this code:

protected void Velg_CheckedChanged(object sender, EventArgs e)
{
      CheckBox chk = (CheckBox)sender;
      TableCell cell= (TableCell)chk.NamingContainer.Controls[1];//assuming your checkbox is first column in DataGrid
      string cellText = cell.Text;
}
0
 

Author Comment

by:m-jansen
ID: 17018902
Thanks for good help
0

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