Comments by satsri46 (Top 7 by date)

I didn't use any javascript. I used RegularExpression validator control which is in asp.net

<asp:TextBox ID="txtEmailid" runat="server" Width="180px" BorderColor="Black"
BorderStyle="Solid" BorderWidth="1px" >
<asp:RegularExpressionValidator ID="RegularExpressionValidator1" runat="server" ControlToValidate="txtEmailid" ErrorMessage="Invalid" ForeColor="#F04E23"
ValidationExpression="\w+([-+.']\w+)*@\w+([-.]\w+)*\.\w+([-.]\w+)*">


Code Behind

protected void btnsave_Click(object sender, EventArgs e)
{
Page.Validate();


if (txtMobileNo.Text == "")
{
lblErr.Text = "Enter the Mobile No";
txtMobileNo.Focus();
return;

}
else if (txtPhoneNo.Text == "")
{
lblErr.Text = "Enter the Phone No";
txtPhoneNo.Focus();
return;
}
else if (txtFax.Text == "")
{
lblErr.Text = "Enter the Fax No";
txtFax.Focus();
return;
}
else if (txtEmailid.Text == "")
{
lblErr.Text = "Enter the Email Id";
txtEmailid.Focus();
return;
}

else if (txtAddress.Text == "")
{
lblErr.Text = "Enter the Address ";
txtAddress.Focus();
return;
}


else
{

sales.Save();
lblErr.Text = "Details Saved Successfully";
GridBindData();
Clear();

}


}