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Label lbsingle = new Label();
            if (ds.Tables[0].Rows.Count == 0)
                  Label.Visible = false;
            else
                Label.Visible = true;
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C# code:

Label lbsingle = new Label();
if (ds.Tables[0].Rows.Count == 0)
{
lbsingle.Visible = false;
}
else
{
lbsingle.Visible = true;
}


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