Binding LookupEdit Repository

Question

在devexpress xtragrid控件中，我有三个lookupedit存储库（用于三列）。我想根据从lookupedit1中选择的值和基于lookupedit2的lookupedit3来绑定lookupedit2。当我点击lookupedit时，我只能看到填充的元素。但是，它不会在网格上显示选定的元素。

这里是我使用的代码：

void repositoryLookupEdit1_EditValueChanged(object sender, EventArgs e) { 
    LookUpEdit edit = gridView.ActiveEditor as LookUpEdit; 
    int val = Convert.ToInt32(edit.EditValue); 
    if (!val.Equals(0)) { 
     var elements = from e in dc.Elements select e; 
     repositoryLookupEdit1.DisplayMember = "paymentType"; 
     repositoryLookupEdit1.ValueMember = "paymentTypeID"; 
     repZone.DataSource = bindData(elements); 
    } 
} 
public BindingSource bindData(object obj) { 
    BindingSource ctBinding = new BindingSource(); 
    ctBinding.DataSource = obj; 
    return ctBinding; 
} 

可能是什么可能出现的问题？

Answer 1

我相信这个例子会有所帮助： How to filter a second LookUp column based on a first LookUp column's value