How do I stop losing values on navigation?

[sitefinitysteve]

If I set values on the report in the codebehind (so lets say textBox1.Value = dataItem.Name)

When I navigate to a sub report, then navigate back to the master, textBox1 no longer has the value I assigned to it...

[Peter]

Hi Steve,

Are you trying to change the code serialized in the InitializeComponent method? What do you mean by "When I navigate to a sub report, then navigate back to the master"? Generally we highly recommend to avoid changing the report designer serialized code and instead use the report designer. Let us know if this is not the case.

Greetings,
Peter
the Telerik team

[sitefinitysteve]

Hey Peter,

It's in the crosstabs NeedsDataSource event...I have the dataset so I just use one of the values to set the title

[Peter]

Hello Steve,

Since Q3 2010 the NeedDataSource event is meant to be used only for providing a data source to the report and then the retrieved data is cached unless changed i.e. once cached the NeedDataSource event is not fired again and as you probably know every time when the report is previewed, paged or exported through the viewer it is processed and rendered from scratch. During this processing, the cached data is used, but the Values you have set in the NeedDataSource event are not  being set as the event is not fired second time unless refresh is invoked or a parameter value is changed. If you set a break-point within the NeedDatasource handler you should be able to observe the described behavior. That is why any other changes to report items should be moved to the ItemDataBinding event, which is fired regardless.

If you still experience any difficulties we will appreciate if you send us a report that exhibits the described behavior to debug and analyze locally.

All the best,
Peter
the Telerik team