<html xmlns="http://www.w3.org/1999/xhtml"><head runat="server"> <title>Javascript Validations</title> <script language="javascript" type="text/javascript"> //Allow only alpha charecter a-z A-Z Space Delete BackSpace function Alpha(evt) { var charCode = (evt.which) ? evt.which : event.keyCode if ((charCode > 64 && charCode < 91) || (charCode > 96 && charCode < 123) || charCode > 47 && charCode < 58 || charCode == 127 || charCode == 8 || charCode == 32) { return true; } else { return false; } } </script></head><body> <form id="form1" runat="server"> Enter Emp Name<asp:TextBox ID="TextBox2" runat="server" onkeyPress="return Alpha(event);"></asp:TextBox> </form></body></html>
<asp:TextBox ID="txtqty" runat="server" TabIndex="6" AutoPostBack="true" ontextchanged="txtqty_TextChanged"> </asp:TextBox> <asp:RequiredFieldValidator ID="Rfvquty" runat="server" ControlToValidate="txtqty" ErrorMessage="Enter the Material Quantity" ForeColor="Red" SetFocusOnError="True" InitialValue="0" ValidationGroup="valnewmaterial">*</asp:RequiredFieldValidator> <asp:RegularExpressionValidator ID="RegularExpressionValidator2" runat="server" ControlToValidate="txtqty" ErrorMessage="Please Enter Only Numbers" ValidationExpression="^\d+$" ValidationGroup="valnewmaterial">*</asp:RegularExpressionValidator>
protected void txtqty_TextChanged(object sender, EventArgs e) { int age= int.Parse(txtqty.Text.Trim ()); txtspec.Text = DateTime.Now.AddYears(-age).Date.ToShortDateString(); }
<script language="Javascript">fucntion getKeycode(){ if(event.keyCode == 13) { alert("You have pressed enter key"); return false; } }<asp:TextBox id="txtKeypress" Runat="Server" onkeypress="return getKeycode()" /></script>