Comments by Nagendra Singh Kushwah (Top 3 by date)

This is useful but my requirement is different.
Please check my code as mentioned above
public void calculationA()
{
TextBox txt_BCICU = (TextBox)grdlist.FindControl("txt_BCICU");
}

Here in txt_BCICU getting null value. I want to show old value here as I bind data in gridview.
Do you have any idea, how can I get value of textbox inside user defined function.