Hello,

I'm new to dotnet Slackers and relatively new to ASP.Net/AJAX Web application development so please bear with me.

Ok, here is my scenario. I have a Gridview and it contains approx. 10 columns. In 2 of the columns, I'm dynamically displaying a checkbox; one for "Send" and the other "Delete". I want for each gridview row, to be able to check or uncheck the checkbox but make it mutually exclusive to the other checkbox column. For instance, If the user selects the "Send" checkbox and the "Delete" checkbox is not selected, then if the user selects the "Delete" checkbox, it deselects the "Send" checkbox. 

I have included the Ajax Mutually Exclusive checkbox extender to accomplish this and it works for each gridview row great, however,
here's the problem I'm having:
When I select a checkbox on a different Gridview row, it deselects the other selected checkbox in the different Gridview Rows.

I need the mutually exclusive checkbox extender to be mutually exclusive for each Gridview Row too.

Here's what I currently have for the existing code:

<

ItemTemplate>
<asp:CheckBox ID="chkSend" runat="server" Font-Size="small" OnCheckedChanged="tosend_CheckedChanged" Checked="<%# GetChkBoxSendValue(Container) %>" AutoPostBack="True" />
<cc1:MutuallyExclusiveCheckBoxExtender ID="chkSendExtender" runat="server" TargetControlID="chkSend" Key="SendOrDelete"/>
</ItemTemplate>

<ItemTemplate>
<asp:CheckBox ID="chkDelete" runat="server" Font-Size="small" OnCheckedChanged="todelete_CheckedChanged"Checked="<%# GetChkBoxDeleteValue(Container) %>" AutoPostBack="True" />
<cc1:MutuallyExclusiveCheckBoxExtender ID="chkDeleteExtender" runat="server" TargetControlID="chkDelete" Key="SendOrDelete"/>
</ItemTemplate>

Any assistance with this matter would be greatly appreciated.

Jeff O'Connell

Can you show me tosend_CheckedChanged and todelete_CheckedChanged?

 Sonu,

Thanks for responding, I did a work around and actually used those 2 events to make the checkboxes mutually exclusive for each gridview row without using the Ajax Mutually Exclusive Checkbox Extender.

Here's the code for anyone else who needs a solution to the same problem;

protected void tosend_CheckedChanged(object sender, EventArgs e)
{
   CheckBox checkbox1 =  (CheckBox)sender;
   GridRow gridrow1 = (GridRow)checkbox1.Parent.Parent.Parent;
   gridrow1.Record.SetValue("tosend", (checkbox1.Checked?1:0));
   CheckBox delcheck = (CheckBox)gridrow1.FindControl(gridrow1.ID.ToString()+"Cell2").Controls[0].Controls[1];
   
   if (checkbox1.Checked)
   {
       gridrow1.Record.SetValue("todelete", 0);
        delcheck.Checked =false;
   }

 }

protected void todelete_CheckedChanged(object sender, EventArgs e)
{
     CheckBox checkbox1 = (CheckBox)sender;
     GridRow gridrow1 = (GridRow)checkbox1.Parent.Parent.Parent;
      gridrow1.Record.SetValue("todelete", (checkbox1.Checked ? 1 : 0));
     CheckBox Sndcheck = (CheckBox)gridrow1.FindControl(gridrow1.ID.ToString() + "Cell1").Controls[0].Controls[1];
    
     if (checkbox1.Checked)
     {
        gridrow1.Record.SetValue("tosend", 0);
        Sndcheck.Checked = false;
      }
}

Very good. However I think you could have solved that with a single function:

protected void oncheck(object sender, EventArgs e)
{
   string oppositeCheckboxId = "chkSend";
   string action = "tosend";

   CheckBox checkbox1 =  (CheckBox) sender;
   if (checkbox1.Id == "chkSend")
   {
       oppositeCheckboxId = "chkDelete";
       action = "todelete";
   }
 
   GridRow gridrow1 = (GridRow)checkbox1.Parent.Parent.Parent;
   gridrow1.Record.SetValue(action, (checkbox1.Checked ? 1:0));  
 
   if (checkbox1.Checked)
   {
       CheckBox oppositeCheckbox = (CheckBox)gridrow1.FindControl(otherCheckboxId);     
       gridrow1.Record.SetValue((checkbox1.Id == "chkSend" ? "todelete" : "tosend"), 0);
       oppositeCheckbox.Checked =false;
   }
}

In the above code, I simply check the sender.Id. If the sender is the "chkSend" checkbox, then we need to change the opposite checkbox which is "chkDelete". Then I simply save the id in a variable and use that to get the checkbox, which I can simply then uncheck. Based on the variables I can also use the SetValue.

This code may contain compiler errors - I wrote it in notepad :)

 Sonu,

Thank you very much for the suggestion and your help regarding this matter. I will try this in my code.

Thanks

Jeff

Jeff,

  Are you ok with the postback though?  If you are doing it without Ajax you'll be getting a postback which might not be very good for the user experience.  If the asp.net Ajax control isn't working like you want, you could still do what you need using pure Javascript.

Mark.

 Thanks Mark.

I should clarify. I'm still using AJAX (update panel) for the page postbacks, I'm just not using the Mutually Exclusive Checkbox extender from the Ajax toolkit to handle the mutual exclusivity of two checkboxes in the same gridview row. I need to save the state of the checkbox (checked or not) when the user is using paging with the Gridview so I built the mutual exclusive checkbox functionalty into the same server-side event that does that.

Thanks again for your interest and follow-up.
Jeff