Checking an ASP.Net textbox value

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Hi,

I am developing a web portal where I want to check a value of a textbox once the user finished typing in it and leaves it. I want something like textbox leave event. I want to check its value against the value in a SQL server database table. I have tried using the text changed event while keeping the autopostback = true. But still it is not working.
Can anyone help me please................

Posted 16-Apr-13 2:00am

Vreeti

Updated 16-Apr-13 2:01am

v2

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Ra3IDeN 16-Apr-13 8:09am

Have you tried clicking outside of the textbox when you have typed in your value?

Vreeti 16-Apr-13 9:06am

Yes.. I had tried this...

[no name] 16-Apr-13 13:42pm

kindly post your code please

3 solutions

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Praveen Kumar Chauhan (PRK) · Answer 1 · 2013-04-16T02:27:00

Solution 1

onblur event u can called by javascript, and use webservice method to retrieve value from database and compare it at client side only. for reference click here
how javascript use to call server side sql queries using webservice

Posted 16-Apr-13 2:27am

Praveen Kumar Chauhan (PRK)

Hemant761 · Answer 2 · 2013-04-16T02:58:00

dude i think you have to use jquery ajax .

JavaScript

$("#txtID").blur(function(){

    var text=$("#txtID").val();

    $.ajax({
        url:"Default.aspx/WebMethod",
        type:"POST",
        data:{value:text},
        success:function(data){
        alert('done');
        },
        error:function(msg){
          alert('error');
        }
    });
});

Rekhash · Answer 3 · 2013-04-16T06:32:00

Solution 3

http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.textbox.aspx[^]
http://www.w3schools.com/aspnet/aspnet_textbox.asp[^]

http://forums.asp.net/t/1457995.aspx/1[^]

Posted 16-Apr-13 6:32am

Rekhash