How to handle key press events in asp.net c#

Question

How to handle key press events in asp.net c# i knoe this to handle in windows applications there are events to use directly but how in asp.net website Any urls to reffer plsss tell me thanks pramod

Niradhip Chakraborty · Answer

Along with thatyou can refer the following URL: 1. http://www.dotnetspider.com/forum/47359-Keypress-event-ASP-Net.aspx 2. http://www.dotnetspider.com/forum/ViewForum.aspx?ForumId=3606 3. http://forums.devshed.com/net-development-87/how-to-code-for-key-press-event-in-asp-net-365822.html

Vijaya Kadiyala · Answer

You should use cliend side script to restrict user to enter some value. Here is the code: Enter the filter condition and on code bvehind page load add the keypress event to the element by: TextBox1.Attributes.Add(keypressreturn PrecessKeyAlfaNumeric(thisevent); function PrecessKeyAlfaNumeric( textBox textEvent ) Paste this code in aspx file within scriipt tag. /*------------------------------------------------------------------------ Purpose: Restricts the text field to Alpha numeric Inputs : Text field object event object Returns: Bool -------------------------------------------------------------------------*/ { var code = textEvent.which; // Netscape Method if (code == null) { //alert(Null code); code = textEvent.keyCode;//IE 4 Method } //alert(Got It data= + code + value=+textBox.value); if(!( (code >= 48 && code (code >= 65 && code (code >= 97 && code { return false; } return true; } Thanks -- Vijaya Kadiyala www.DotNetVJ.com

vivek kulkarni · Answer

Hi You need to handle it on the client side. here is a sample. protected void Page_Load(object sender EventArgs e) { if (!Page.IsPostBack) { Label1.Text = Start; } TextBox1.Attributes.Add(onkeyup rewriteLabel()); } function rewriteLabel(){ TextBox1.Text = Label1.text; } test Thank you