如何将ID和字段值分配给隐藏字段

Question

I have a gridview with few rows and columns , with ListBox Controls in columns.

Markup :

    <asp:GridView ID="gvDataEntry" runat="server" AutoGenerateColumns="False"
    <Columns>
<ItemTemplate>
     <asp:ListBox ID="lstBox1" ondblclick="ListBox1_DoubleClick()" runat="server" CssClass="listBox"></asp:ListBox>
</ItemTemplate>
<ItemTemplate>
     <asp:ListBox ID="lstBox2" ondblclick="ListBox1_DoubleClick()" runat="server" CssClass="listBox"></asp:ListBox>
</ItemTemplate>
<ItemTemplate>
     <asp:ListBox ID="lstBox3" ondblclick="ListBox1_DoubleClick()" runat="server" CssClass="listBox"></asp:ListBox>
</ItemTemplate>
    </Columns>
    </asp:GridView>

Displayed as

-----------------------------------------------------
Name         |  Column1  |  Column2   | Column3
-----------------------------------------------------
FieldName    |  LB1      |   LB2      |   LB3      
----------------------------------------------------
FieldName 1  |  LB1      |   LB2      |   LB3
-----------------------------------------------------     

When I double click the Listbox I want to do some functionalities, so I have added the hidden field outside the gridview as

<asp:HiddenField ID="ListBox1Hidden"
            runat="server" />

Javascript

<script lang="javascript">
        function ListBox1_DoubleClick() {
            document.forms[0].submit();
        }
    </script>

On Page Load

       if (Request.Params["ListBox1Hidden"] != null)
        {          
            //This means It was double click            
        }

Now when I double click the ListBox this event fires. Now I want o get the Name , RowIndex and Id of the ListBox Clicked

For Ex:

If I double clicked the LB1 of firs row I want to get Name : FieldName , Id: lstBox1 and RowIndex.

My doubt is, Can it can be achieved by the only one hidden field as I did. If so how to do it?

Else, should I have to include every HiddenField in the ItemTemplate to achieve this.

Which one helps me to achieve this, and provide me code to do this?

Answer 1

Try to pass the columns value in your javascript function. Like this:

'<%# Eval("ColumnName") %>'

For exmaple we have this double click event:

ondblclick="ListBox1_DoubleClick()"

Try to change this to:

ondblclick="ListBox1_DoubleClick('<%# Eval(\"ColumnName\") %>')"

So in this way you can pass any column's value as a parameter to javascript function.

Note: Within the double quotes "ColumnName" we have to use the proper escape character.