Exception creating relation

[daniele.parisi]

Hi,
I have a problem. When I try to create a relation between a data source and an other one from the previuos.
I have detailed this particular situation in a power point (see attachments).
Thanks in advance
Daniele

System.NullReferenceException: Object reference not set to an instance of an object.
at Stimulsoft.Base.StiExceptionForm..ctor(Exception exception)
at Stimulsoft.Base.StiExceptionProvider.Show(Exception exception)
at Stimulsoft.Report.Design.Controls.StiDesignerPreviewControl.btRefresh_Click(Object sender, EventArgs e)
at Stimulsoft.Report.Design.StiDesignerControl.UpdateDesignerPreviewControl2(Object sender, EventArgs e)
at Stimulsoft.Report.Design.StiDesignerControl.TabControl_SelectedTabChanged(Object sender, TabStripTabChangedEventArgs e)
at Stimulsoft.Controls.Win.DotNetBar.TabControl.InvokeSelectedTabChanged(TabStripTabChangedEventArgs e)
at Stimulsoft.Controls.Win.DotNetBar.TabControl.tabStrip1_SelectedTabChanged(Object sender, TabStripTabChangedEventArgs e)
at Stimulsoft.Controls.Win.DotNetBar.TabStrip.InternalOnMouseDown(MouseEventArgs e)
at Stimulsoft.Controls.Win.DotNetBar.TabStrip.OnMouseDown(MouseEventArgs e)
at System.Windows.Forms.Control.WmMouseDown(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at Stimulsoft.Controls.Win.DotNetBar.TabStrip.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)

[Alex K.]

Hello,

Please check the last prerelease build.
If the issue still present please send us a sample report which reproduce the issue for analysis.

Thank you.

[daniele.parisi]

I replaced the dll with the latest version (Stimulsoft Reports.Ultimate 2013.08.30 ), but the error still occurs.
I attach to this mail a sample report as example.
Thanks
Daniele

[Alex K.]

Hello,

We couldn't reproduce this bug.
Please send us a test data for your report.

Thank you.

[daniele.parisi]

Hello,
my information was incomplete. Our software creates the two datasource via code. Looking for a solution on your forum I read that it is necessary to set the parameter report.CacheAllData = true; in cases where there is a relationship between two different datasource http://admin.stimulsoft.com/Documentati ... tasets.htm
In fact in this way the problem seems to be solved.
However, since the datasource are dynamically created by our users, how can I verify, via code, in wich cases I have to set this property to true?
This solution (report.CacheAllData = true) may cause decreased of performance or memory problems?
Thanks in advance
Daniele

[Alex K.]

Hello,

There is no need to set this property for the stadard DataSet. It is necessary in your report because you have added our additional data source - "Data from Other DataSource" and created a link between them.

Thank you.