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Unplanned
Last Updated: 20 Mar 2026 10:21 by ADMIN
Becky
Created on: 20 Mar 2026 10:13
Category: ExpressionEditor
Type: Bug Report
0
ExpressionEditor: Binding erros appears when clicking on the Operator/Constants option in the left tree
Binding erros appears when clicking on the Operator/Constants option in the left tree:

System.Windows.Data Error: 40 : BindingExpression path error: 'Children' property not found on 'object' ''ConstantEditorItemModel' (HashCode=24850331)'. BindingExpression:Path=Children; DataItem='ConstantEditorItemModel' (HashCode=24850331); target element is 'RadTreeViewItem' (Name=''); target property is 'ItemsSource' (type 'IEnumerable')

System.Windows.Data Error: 40 : BindingExpression path error: 'Children' property not found on 'object' ''OperatorEditorItemModel' (HashCode=64577580)'. BindingExpression:Path=Children; DataItem='OperatorEditorItemModel' (HashCode=64577580); target element is 'RadTreeViewItem' (Name=''); target property is 'ItemsSource' (type 'IEnumerable')
1 comment
ADMIN
Dinko | Tech Support Engineer
Posted on: 20 Mar 2026 10:21

Hi Becky,

Thank you for reporting this behavior.

Regards,
Dinko | Tech Support Engineer
Progress Telerik

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