Hi Jose Antonio,

You can hide the link button for each row using WebGrid_InitializeCell server-side event. Here's the code:

if (e.Cell.Column.ColumnType == ColumnType.Template)
{
    Label lbl = (Label)e.Cell.GetTemplateContainer().FindControl("Label1");
    LinkButton lbtn2 = (LinkButton)e.Cell.GetTemplateContainer().FindControl("LinkButton1");
    if (lbl.Text == "Con firma")
    {
        lbtn2.Visible = false;
        lblMensaje.Text = "favor de contactar a su ejecutivo de cuenta";
        lblMensaje.Visible = true;
    }
    else
    {
        lbtn2.Visible = true;
    }
}

When WebGrid initialize cell, WebGrid check if the column type is template and change the content of the template. Hope this helps.

Regards,

Bernard