asp.net label value change in postback

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hi all

i have web application, in my web application i used to get data using javascript and assign that value
to asp.net label control. but when the page postback the label value is getting reset.

how shall i persist the value in my asp.net label control

below is my javascript code

XML

function RowSelected(sender, args) {
           
           
             document.getElementById("<%= my_label.ClientID%>").innerHTML = args.getDataKeyValue("MODULE_ID");


            


         }

Posted 17-Sep-13 8:21am

sameertm

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Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) · Answer 1 · 2013-09-17T08:28:00

Solution 1

Assign the value in Page_Load or window.onload Event.

Else it will always refresh as page posts back.

Posted 17-Sep-13 8:28am

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

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sameertm 17-Sep-13 14:33pm

can u post sample code ?

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 18-Sep-13 2:10am

As per your code, you are taking value from the argument (args.getDataKeyValue("MODULE_ID")).

So, how will you get this value in Page_Load()? Do you have any idea in your mind?

I think, you can store this in Session or View State, so that you will able to access it in Page_Load.

Got the idea? Please proceed.

Any questions, let me know.

sameertm 18-Sep-13 13:51pm

can u post sample code for store value in session or viewstate. it will be great helpful for me

Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ) 19-Sep-13 3:03am

Session["VariableName"] = "yourValue";

Refer -

1. How to: Save Values in Session State[^]
2. How to: Read Values from Session State[^]

Dholakiya Ankit · Answer 2 · 2013-09-17T18:00:00

This is the re-bind method each time page is postback then value will be added to your label

C#

string sb1 = "function RowSelected(sender, args) {document.getElementById('<%= my_label.ClientID%>').innerHTML = args.getDataKeyValue('MODULE_ID');}";
            ScriptManager.RegisterClientScriptBlock(this.Page, this.Page.GetType(), "script", sb1, true);

if you put this code in your page load what ever postback method you are using then it will work ...:)