Devexpress lookup edit select 一项填写rest lookups

Question

我正在开发使用 xpo 集合从数据库获取和更新数据的程序。我设置了 lookupedit 以从另一个数据库（国家名称）获取数据我希望在选择国家名称后自动填写另一个 lookupedit（国家代码）。

这是 XPO 合集：

Private Countries As New XPCollection(Of clCountry)(UOW)

这是查找代码：

CountriesLookupRepo.DataSourceConnect("Name", "Name", Countries)
CountryCodeLookUp.DataSourceConnect("ISO2", "ISO2", Countries)

如何link 设置它们以便在选择名称后自动填充 ISO2？

谢谢

Answer 1

我建议您通过这个 DevExpress 线程，它描述了实现此功能的大多数情况。

How to filter a second LookUp column based on a first LookUp column's value

GridControl, TreeList, and VGridControl provide a special event that is raised when a cell editor is activated: ShownEditor. This is the best moment to replace the LookUp editor's data source with the collection filtered by an appropriate criterion.

示例：

Private Sub gridView1_ShownEditor(ByVal sender As Object, ByVal e As EventArgs)
    Dim view As ColumnView = DirectCast(sender, ColumnView)
    If view.FocusedColumn.FieldName = "CityCode" AndAlso TypeOf view.ActiveEditor Is LookUpEdit Then
        Dim edit As LookUpEdit = CType(view.ActiveEditor, LookUpEdit)
        Dim countryCode As String = CStr(view.GetFocusedRowCellValue("CountryCode"))
        edit.Properties.DataSource = GetFilteredCities(countryCode)
    End If
End Sub

有关使用 LookupEdit 绑定 XPO 对象的更多信息，请查看此知识库示例：

How to: Bind an XPCollection to a LookUp

示例：

XPCollection xpCollectionPerson = new XPCollection(typeof(Person));         
xpCollectionPerson.DisplayableProperties = "Name;Group!Key";
gridControl1.DataSource = xpCollectionPerson;

XPCollection xpCollectionGroup = new XPCollection(typeof(PersonGroup));
RepositoryItemLookUpEdit lookUpRI = new RepositoryItemLookUpEdit();
lookUpRI.DataSource = xpCollectionGroup;
lookUpRI.DisplayMember = "GroupName";
lookUpRI.ValueMember = "Oid";
gridControl1.RepositoryItems.Add(lookUpRI);
// Associate the LookUpEdit editor with the "Group!Key" column. 
(gridControl1.MainView as ColumnView).Columns["Group!Key"].ColumnEdit = lookUpRI;

希望对您有所帮助。

Answer 2

想出了怎么做。

如果有人想知道，我就是这样做的：

Dim Country As clCountry = CountriesLookupRepo.GetDataSourceRowByKeyValue(e.Value)
                Apt.CountryCode = Country.ISO2
                Apt.RegionName = Country.Region

Devexpress lookup edit select 一项填写rest lookups

Devexpress lookup edit select one fill in rest lookups

vb.net

autocomplete

devexpress

xpo

gridlookupedit