DxDocumentViewerCallbacksBase<TModel, TEvents>.CustomizeParameterLookUpSource Property
Specifies the handler for the CustomizeParameterLookUpSource client-side event that allows you to specify look-up values for the parameter editor.
Namespace: DevExpress.Blazor.Reporting
Assembly: DevExpress.Blazor.Reporting.v25.1.JSBasedControls.Common.dll
NuGet Package: DevExpress.Blazor.Reporting.JSBasedControls.Common
Declaration
Property Value
| Type | Description |
|---|---|
| String | The name of a JavaScript function used to handle the CustomizeParameterLookUpSource event. |
Remarks
The CustomizeParameterLookUpSource event occurs each time a look-up editor is created for a report parameter.
The handler function receives two parameters - the first parameter is the client-side Document Viewer (the event sender) and the second parameter is an object with the following properties and methods:
parameter
An object that stores information about a parameter.items
A collection of look-up parameter values.dataSource
The data source that supplies look-up values to the parameter editor.
The following example reverses the order of look-up values in the parameter editor:
window.ReportingViewerCustomization = {
onCustomizeParameterLookupSource: function (s, e) {
if (e.parameter.name == 'parameter1') {
e.items.reverse();
e.dataSource = new s.previewModel.dx.data.DataSource({ store: e.items });
}
},
}