CellEditContext.OnChanged(String, Object) Method
A delegate method that handles a cell value change in the specified column.
Namespace: DevExpress.Blazor
Assembly: DevExpress.Blazor.v24.1.dll
NuGet Package: DevExpress.Blazor
Declaration
public void OnChanged(
string fieldName,
object value
)
Parameters
Name | Type | Description |
---|---|---|
fieldName | String | A data source field name. |
value | Object | A cell value. |
Remarks
When you use an edit template, the editors inside this template do not inform the grid about changes made to their values. If you have complex dependencies between editors, call the OnChanged
method to inform the editors about changes and save the new cell values to the EditedValues collection. Then, the grid passes this collection to the RowUpdating and RowInserting events.
<DxDataGrid Data="@DataSource"
RowInserting="@((newValues) => OnRowInserting(newValues))"
RowUpdating="@((updatingDataItem, newValues) => OnRowUpdating(updatingDataItem, newValues))">
...
<DxDataGridComboBoxColumn Field="@nameof(Vacancy.Region)" Data="@VacancyRepository.Regions">
<EditTemplate>
@{
var editingContext = (CellEditContext)context;
}
<DxComboBox Data="@VacancyRepository.Regions"
Value="@region"
ValueChanged="@((string newCellValue) => {
editingContext.OnChanged(newCellValue);
editingContext.OnChanged(nameof(Vacancy.City), null);
})">
</DxComboBox>
</EditTemplate>
</DxDataGridComboBoxColumn>
</DxDataGrid>
See Also