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How to change the same values in all records when the ComboBox column value is changed?

In the SfDataGrid, when a column has same value in more than one row, you can update all those values in the column at once to a newly changed cell value by handling the CurrentCellValidated event. This event has two arguments, sender and CurrentCellValidatedEventArgs.

The CurrentCellValidatedEventArgs has the following properties,

  • NewValue: Gets new value from the edited cell in the DataGrid.
  • OldValue: Gets old value from the edited cell in the DataGrid.
  • Column: Gets the Grid Column of the DataGrid.
  • ErrorMessage: Gets error message to notify the error.
  • RowData: Gets the edited row data.

C#

Here, the CurrentCellValidated event is triggered when current cell moves to another cell. When the MappingName of the Current Cell’s Column is not equal to null and MappingName is CustomerName, then all the cell values that match the old values are changed to new values by using the NewValue and OldValue properties.

The following screenshot displays the updated ComboBox column values.

F:\KB\Images\NewCombo1.png

In the above screenshot, the old value Thomas Hardy is repeated in more than one cell. Thus, Thomas Hardy in the CustomerName column is replaced with the selected value Ana Trujillo. The following screenshot displays the changed value.

F:\KB\Images\UpdatedCombo1.png

Sample Links:

WPF

WRT

SilverLight

UWP

Article ID: Published Date: Last Revised Date: Platform: Control: .NET Framework: Product Version:
2498 08/13/2014 09/30/2016 WPF SfDataGrid 4.5 12.1.0.43
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