GridView Row Selection In ASP.NET

Here we are going to see how to select a row in datagrid when we have mlutiple rows in a GridView. We will be using JavaScript to validate the row selection.

 

Enter the datakeys for the GridView to select the row.

 

Example

 

Datakeys are important,

<asp:GridView ID="GridView1" runat="server" OnRowCreated="GridView1_RowCreated" OnRowDataBound="GridView1_RowDataBound" DataKeyNames="InventoryCode,GidQty" ShowHeaderWhenEmpty="True"></asp:GridView>

Make the unique column as DatakeyNames.  

 

RowCreated event is used to hold the selected values from the datagrid.

protected void GridView1_RowCreated(object sender, GridViewRowEventArgs e)
      {
          if (e.Row.RowType == DataControlRowType.DataRow)
          {
              string code= GridView1.DataKeys[e.Row.RowIndex].Values[0].ToString();/
              int rowid = Convert.ToInt32(e.Row.RowIndex) + 1;
              string code1= GridView1.DataKeys[e.Row.RowIndex].Values[1].ToString(); ;
              e.Row.Attributes.Add("onclick", "onGridViewRowClick1('" + rowid.ToString() + "','" + codce.ToString() + "','" + code1.ToString() + "')");
          }
      }

Here is the JavaScript to validate the selection

function onGridViewRowClick1(rowIndex, code, code1) {
            var table = document.getElementById("<%=GridView1.ClientID%>");
             for (var i = 0; i < table.rows.length; i++) {
                 if (i % 2 != 1) {
                     table.rows[i].style.backgroundColor = '#F2FFFF'; //#E1F4F4
                 }
                 else {
                     table.rows[i].style.backgroundColor = '#E1F4F4';
                 }
             }
             RowIndex_GID = rowIndex;
             var invcode = document.getElementById("<%=gridviewselection.ClientID%>");
            code.value = code;  ;

            var selRow = getClickedRow1(rowIndex);

            if (null != selRow) {
                table.rows[rowIndex].style.backgroundColor = '#add8e6';

            }
        }

Thanks for reading