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Request a Feature Report a Bug
Completed
Last Updated: 25 Feb 2021 16:04 by ADMIN
Release 2021 R1 SP1
Daniel
Created on: 05 Feb 2021 12:11
Category: PivotGrid
Type: Bug Report
1
NullReferenceException is thrown if EnableConfigurationPanel is set to True and no data is bound to the PivotGrid

When the EnableConfigurationPanel is enabled for the PivotGrid and is being rendered without having data bound to it, the "System.NullReferenceException: Object reference not set to an instance of an object." exception will be thrown.

 

To replicate the problem, add the following PivotGrid declaration to the page without binding data to it:

<telerik:RadPivotGrid ID="RadPivotGrid1" runat="server" EnableConfigurationPanel="true">
</telerik:RadPivotGrid>

1 comment
ADMIN
Attila Antal
Posted on: 05 Feb 2021 13:55

Hi Daniel,

Thank you for reporting this problem.

We've looked into the source code and we found that when we're looping through the RadPivotGrid.ConfigurationPanel.RenderingControls collection is null if no data is bound to the Grid.

We will implement a condition that will first check and prevent the execution of the code when the Collection returns null.

Until the problem is fixed, you can do one of the following:

1. Make sure data is bound to the Grid prior to Rendering.

Protected Sub RadPivotGrid1_NeedDataSource(ByVal sender As Object, ByVal e As PivotGridNeedDataSourceEventArgs) Handles RadPivotGrid1.NeedDataSource
        (TryCast(sender, RadPivotGrid)).DataSource = GetDataTable()
    End If
End Sub

 

2. Keep the EnableConfigurationPanel set to false until binding, then enable it when needed.

On ButtonClick

Protected Sub RadButton1_Click(ByVal sender As Object, ByVal e As EventArgs)
    RadPivotGrid1.EnableConfigurationPanel = True 'Enable the Configuration Panel
    RadPivotGrid1.DataSource = GetDataTable() 'Assign the DataSource
    RadPivotGrid1.Rebind() 'Rebind the Grid for the changes to take effect
End Sub

 

In the NeedDataSource event:

Protected Sub RadPivotGrid1_NeedDataSource(ByVal sender As Object, ByVal e As PivotGridNeedDataSourceEventArgs) Handles RadPivotGrid1.NeedDataSource
    'Implement your condition
    If True Then
        'Only enable the Configuration Panel If datasource is assigned
        RadPivotGrid1.EnableConfigurationPanel = True
        'Assign a datasource
        (TryCast(sender, RadPivotGrid)).DataSource = GetDataTable()
    End If
End Sub

 

Regards,
Attila Antal
Progress Telerik

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