Solved

datagrid losing controls on postback

Posted on 2007-11-16
1
551 Views
Last Modified: 2012-06-27
I have a datagrid that auto generates columns set to TRUE.  The general layout of this grid is as follows:

Company 1  |   Company 2 |  Company 3 | Company 4 ....
textbox                 DDL             DDL                 DDL
textbox                 DDL             DDL                 DDL
textbox                 DDL             DDL                 DDL
etc..

the reason im using auto generate is because the column headers are names of companies, and depending on the data that i get back, there will be a variable amount of columns(companies).

so i simply generate a datatable with the correct formating, bind it to the datagrid's datasource,
then on ItemDataBound, i dynamically add controls to the cells which will container either a dropdownlist with data in it, or a textbox (each cell will depend on conditions)

all of this works, however, when i postback on anything, the columns stay, but i lose all my controls.  even if i have it re add those controls on every postback, then i still lose the state of their selected values.
the dropdownlists in the grid do not have autopostback set, so we are posting back on other parts of the page.

is there anything that can be done thats relatively simple?
0
Comment
Question by:mocaiv
1 Comment
 
LVL 37

Accepted Solution

by:
samtran0331 earned 500 total points
ID: 20301298
because of the page lifecyle and when thing like controls and their values get put into viewstate...dynamic controls can get tricky....when you add the controls in ItemDataBound, try wrapping that in an ispostback check...make sure you don't re-add or re-bind the dynamic controls when it is a postback....it might still not be in the correct part of the page lifecycle...but see if it changes your results...
0

Featured Post

Problems using Powershell and Active Directory?

Managing Active Directory does not always have to be complicated.  If you are spending more time trying instead of doing, then it's time to look at something else. For nearly 20 years, AD admins around the world have used one tool for day-to-day AD management: Hyena. Discover why

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
ASP.NET Core index.html  LOCALHOST page cannot be found 2 53
Turn on intranet settings 1 57
ASP.NET 5 Templates 2 78
IIS issues - Convert to Application - APS.NET v4.0 3 36
This article discusses the ASP.NET AJAX ModalPopupExtender control. In this article we will show how to use the ModalPopupExtender control, how to display/show/call the ASP.NET AJAX ModalPopupExtender control from javascript, how to show/display/cal…
International Data Corporation (IDC) prognosticates that before the current the year gets over disbursing on IT framework products to be sent in cloud environs will be $37.1B.
Along with being a a promotional video for my three-day Annielytics Dashboard Seminor, this Micro Tutorial is an intro to Google Analytics API data.
With Secure Portal Encryption, the recipient is sent a link to their email address directing them to the email laundry delivery page. From there, the recipient will be required to enter a user name and password to enter the page. Once the recipient …

778 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question