You can get variable from javascript and use it in code behind code in dotnet variable it means server side variable.
Dim strMessage2 As String = “”
Response.Write(“var str1 =
prompt(‘Please Enter Password:’,”);”)
strMessage2 = “document.write(str1);”
Response.Write(strMessage2)
Source : http://forums.asp.net/p/839953/840084.aspx
This example shows how to validate the LastName textbox but only if the FirstName textbox contains a value. The first part is simply HTML tags with the form controls, the second part is simply the code for “onblur” even in the Page_Load event handler.
FIRST HTML
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<%@ Page Language=”vb” AutoEventWireup=”false” Codebehind=”WebForm1.aspx.vb” Inherits=”ValidationChange.WebForm1″%>
<!DOCTYPE HTML PUBLIC “-//W3C//DTD [...]
I will try to explain the difference between RegisterClientScriptBlock and RegisterStartupScript . I have experienced the difference while I was doing some stuffs yesterday. Here is what I was doing. I had a hidden field called txtHiddenField, an update button and some tabs in my page. I also have a javascript function called DisplayTab.
function DisplayTab(tabId)
{
var [...]
I recently came accross javascript date features and i find it very interesting. You can compare dates, set date on client side only and it increases user friendlyness..Few examples are here…
Set date , by adding one day in mm/dd/yyyy format
var d = new Date(fromDate);d.setDate(d.getDate()+1);//alert((d.getMonth()+1)+”/”+d.getDate()+”/”+d.getYear());
——————————oneMinute = 1000 * 60;oneHour = oneMinute * 60;
oneDay = oneHour * 24;
GapTimeSpan = Date.parse(tCallOutDateTime) [...]
