Hello Varun,

Thank you for the update. The reason the igg_AddedRow CSS class gets removed from the row is when you cause a postback you are saving the row to the grid making it no longer a new row. If you add the CSS in the save button on postback this will occur after the RowAdding event and then you can use the following code to change the color of the row:

WebDataGrid1.Rows[1].Items[0].CssClass = "rowColor";

Note you will want to loop through the cells in the row. Also with background color you will want to mark it as important otherwise it will be overwritten:

.rowColor{
            color:red;
            background-color:black !important;
        }

If you want to apply the style on the client you can use the following code:

var grid = $find("<%=WebDataGrid1.ClientID %>");
grid.get_rows().get_row(0).get_cell(0).get_element().style.backgroundColor = "red";
grid.get_rows().get_row(0).get_cell(0).get_element().className = "style1";

or

var grid = $find("<%=WebDataGrid1.ClientID %>");
grid.get_rows().get_row(0).get_cellByColumnKey("DepartmentID").get_element().style.backgroundColor = "red";
grid.get_rows().get_row(0).get_cellByColumnKey("DepartmentID").get_element().className = "style1";

Please let me know if you have any further questions concerning this matter

Hi,

WebDataGrid.Rows[RowIndex].CssClass = “cssClassName”; will only work in the case where row is already binded to the grid.

Here, in this case, new rows were added via client side row adding and on RowAdding server side event, I am trying to highlight the row which is not taking place.

What I tried to do now is at the RowAddign server side event, when the process is failing the business check, I am returning the new row index via setting 

dgKeyWords.CustomAJAXResponse.Message ='1,2'

and at the client side, tried to set the background color of Tr TD by finding via row index

function WebDataGridView_AJAXResponse(webDataGrid, evntArgs) {

 $("tr [class^=igg_AddingRow]").eq(Ids[i]).find("td").css("background-color", "OrangeRed");

}

Issue is that once I do commit, it is going to server side and when coming back to AjaxResponse, the flag that a row is a new one is not there any more that is 

the newly added row is not in italics and the class is also not igg_AddingRow hence I am not able to get the same.

Please suggest