failed to load viewstate

[Ariel Gimenez]

Hello,
Can someone helpme?
I have a datagrid in wich im using column templates for the edit command, with comboboxes.
The datagrid works fine for the first time i execute the edit command but the second time it gives me the following error...

Failed to load viewstate. The control tree into which viewstate is being loaded must match the control tree that was used to save viewstate during the previous request. For example, when adding controls dynamically, the controls added during a post-back must match the type and position of the controls added during the initial request.

any help will be appreciated
Thanks in adfance
Ariel Gimenez

 

[Earl Teigrob]

Ariel

By the error, it sounds like you may be dynamically adding or removing controls to/from you datagrid during a non-postback and then not rebuilding them on postback. If this was the case, then viewstate could get mixed up and generate an error. More info (or code) on what you are doing related to this may help isolate the problem.

Earl
Hello,
Can someone helpme?
I have a datagrid in wich im using column templates for the edit command, with comboboxes.
The datagrid works fine for the first time i execute the edit command but the second time it gives me the following error...

Failed to load viewstate. The control tree into which viewstate is being loaded must match the control tree that was used to save viewstate during the previous request. For example, when adding controls dynamically, the controls added during a post-back must match the type and position of the controls added during the initial request.

any help will be appreciated
Thanks in adfance
Ariel Gimenez

 

[Ariel Gimenez]

Thanks Earl !
Unfortunatelly, im not adding controls manually, i just using column templates, in these
columns i have changed for the edit command the textbox with a dropdowlist,
and in the item databound event im retrieving these selected values with
findcontrol and calling stored procedures in order to update the db...
First time all works fine, but in some cases (im doing a kind of validation
in the update command) i need to refire this update command and in this case
is when im getting the stinking message

Ariel

By the error, it sounds like you may be dynamically adding or removing controls to/from you datagrid during a non-postback and then not rebuilding them on postback. If this was the case, then viewstate could get mixed up and generate an error. More info (or code) on what you are doing related to this may help isolate the problem.

Earl
Hello,
Can someone helpme?
I have a datagrid in wich im using column templates for the edit command, with comboboxes.
The datagrid works fine for the first time i execute the edit command but the second time it gives me the following error...

Failed to load viewstate. The control tree into which viewstate is being loaded must match the control tree that was used to save viewstate during the previous request. For example, when adding controls dynamically, the controls added during a post-back must match the type and position of the controls added during the initial request.

any help will be appreciated
Thanks in adfance
Ariel Gimenez