Did you create any dynamic Control like Dropdown in Grid view cell ? Because When dynamic control is created then it errors has happen
To avoid this Create template column in grid view then you any asp control 2009/9/9 Ana <[email protected]> > > Hi, > > In my page I have a Gridview and a FormView. For each row in the > GridView, there's a linkButton *Details* that shows the FormView with > the information about the selected record in the GridView. > In the FormView, users are able to edit and delete records. However, > every time I cancel the editing of a record and try to see the > formview for this record (clicking in *Details* on the GridView), I > have the following error message: > > -- > 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. > -- > > What is happening here? Why this error message in being fired? > > Thanks in advance, > > Ana -- Regards ******************* *C.Arun Kumar * *******************
