C# - Make First And Last Column Not Clickable?

I have a table being generated in an ASP.net web app. The table has 4 columns. Currently each cell of each row can be clicked to get more detailed info. However, I do not want the first and the last cell in each row to be clickable. How can I make it so that only the first second and third cell can be clicked?

Below is some of the code (from the .cs file):

if(e.Row.RowType == DataControlRowType.DataRow)
{
e.Row.BackColor = TRADER_BACKCOLOR;
e.Row.Cells[0].Font.Bold = true;
e.Row.Attributes.Add("onmouseover", "style.backgroundColor = 'Silver'");
e.Row.Attributes.Add("onmouseout", "style.backgroundColor = '" + TRADER_HEX + "'");
e.Row.Attributes.Add("onclick", "RowClick(this, '" + e.Row.Cells[0].Text + "');");
From the .aspx file:
function RowClick(caller, id)
{
if(document.getElementById(id).style.display == "block")
{
if(last != "" && parent == id)
{
HideDetailed();
}
document.getElementById(id).style.display = "none";
}
else
{
document.getElementById(id).style.display = "block";
}
}