private void fname_TextChanged(object sender, EventArgs e)
{
string fnam = fname.Text;
if (BookRegValidation.isNumber(fnam))
{
errorProvider1.SetError(fname, "can contain only letters");
RegStd.Enabled = false;
}
else
{
errorProvider1.Clear();
RegStd.Enabled = true;
}
}
private void author_TextChanged(object sender, EventArgs e)
{
string autho = author.Text;
if (BookRegValidation.isNumber(autho))
{
errorProvider1.SetError(author, "can contain only letters");
btregbk.Enabled = false;
}
else
{
errorProvider1.Clear();
btregbk.Enabled = true;
}
}
private void admisNum_TextChanged(object sender, EventArgs e)
{
string str = admisNum.Text;
string let = new string(str.Take(2).ToArray());
// string result = new string(str.Take(5).ToArray());
// string let = str.Substring(0,2);
// string result = str.Substring(2,5);
if (BookRegValidation.isNumber(let)) //|| BookRegValidation.isNumber(result) )
{
errorProvider1.SetError(admisNum, "Enter a Valid Admission Number starts with WS");
RegStd.Enabled = false;
}
else
{
errorProvider1.Clear();
RegStd.Enabled = true;
}
}