Check Box Select in GridView

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Hi Friends,
I've checkbox in my gridview. My gridview page size=10,
i've selected one checkbox in page 1 and selected another checkbox
in page 2 but during this process my checkbox in page 1 was unselect.

It may be because of page index changing but hw can solve this problem??

Any solution???

Posted 9-Jun-13 19:02pm

VIP Venkatesan

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_Amy · Accepted Answer · 2013-06-09T19:18:00

Solution 1

It's quite simple really, all you have to do is:

Quote:
1. Loop through the grid view rows in your PageIndexChanging event
2. Find the check box in each row and see whether it's checked
3. Update the checked value in session

Refer the link for similar article:
Maintaining State of CheckBoxes While Paging in a GridView Control[^]

--Amit

Posted 9-Jun-13 19:18pm

_Amy

Comments

Thanks7872 10-Jun-13 1:53am

yes...its the good one....↑voted..!

_Amy 10-Jun-13 1:56am

Thank you Rohan. :)

Thanks7872 10-Jun-13 1:58am

you are welcome..!

VIP Venkatesan 10-Jun-13 5:30am

facing error like "Specified cast is not valid" at
index = (int)GridView1.DataKeys[gvrow.RowIndex].Value;

how to solve this?

_Amy 10-Jun-13 5:33am

Check for following:
1. Are you setting DataKeys to GridView?
2. GridView1.DataKeys[gvrow.RowIndex].Value should not be Empty String("").
--Amit

VIP Venkatesan 10-Jun-13 5:59am

ya i've given datakeynames in my gridview. the datatype of my datakeyname is nvarcahr(50). is this an issue??

VIP Venkatesan 10-Jun-13 6:01am

GridView1.DataKeys[gvrow.RowIndex].Value has my datakeyname's value but facing the same error.. y??

_Amy 10-Jun-13 6:04am

Check a similar example:
Get RowIndex In GridView RowCommand Event Using DataKey[^]

VIP Venkatesan 10-Jun-13 7:37am

thank u sir.. i think our datakeyname should be int. after changed my datakeyname's datatype into int it works fine. thank u..

_Amy 10-Jun-13 7:47am

Welcome. :0

VIP Venkatesan 10-Jun-13 7:57am

i've selected one checkbox in page 1 and selected another checkbox in page2. i've one button for delete the selected values. but the code delete only the current page's selected checkbox value.. not all the values.. any solution?

ridoy · Accepted Answer · 2013-06-09T22:23:00

Solution 2

I think this article will solve your problem..
http://www.aspdotnet-suresh.com/2010/04/maintaining-state-of-checkboxes-while.html[^]
Also can see..
Maintaining States of Selected CheckBoxes in Different Pages inside the GridView[^]

Posted 9-Jun-13 22:23pm

ridoy

Updated 9-Jun-13 22:25pm

v2

Comments

VIP Venkatesan 10-Jun-13 5:30am

facing an error "Specified cast is not valid" at
index = (int)GridView1.DataKeys[gvrow.RowIndex].Value;

how to solve this?

ridoy 10-Jun-13 6:38am

Try..
int index = Convert.ToInt32(GridView1.DataKeys[gvrow.RowIndex].Value);

VIP Venkatesan 10-Jun-13 7:40am

ya i've tried this one. but got the same error. after changed my datatype into int it works fine.. thanks for sharing the above links.. it really helpful..

**Check Box Select in GridView**