How do I specify CSS classes for specific rows in a GridView?

Question

I am creating a SharePoint web part in C# and part of it outputs a GridView control to the page. While I can get fairly extensive control over the way it is displayed by set

Answer 1

Optional! you can also add bootstrap class in code behind like...

protected void gvEmpContactsHistory_SelectedIndexChanged(object sender, EventArgs e)
    {
        string val = Convert.ToDateTime(gvEmpContactsHistory.SelectedDataKey.Value).ToString("dd-MM-yyyy hh:mm:ss", new System.Globalization.CultureInfo("en-US"));
        GetEmployeeDetail(val);

        foreach (GridViewRow row in gvEmpContactsHistory.Rows)
        {
            if (row.RowIndex == gvEmpContactsHistory.SelectedIndex)
            {
                row.ToolTip = string.Empty;
                row.Attributes.Add("class", "btn-success");
            }
            else
            {
                row.ToolTip = "Click to select this row.";
                row.Attributes.Add("class", "btn-outline-success");
            }
        }
    }