这段代码有什么不对 [英] Whats wrong in this code

问题描述

hi
我在寡妇形式的应用程序中绑定组合框时会出现流动异常









无法绑定到新的显示成员。





代码

 ArrayList arr1 =  new  ArrayList（）; 
 Item objItem =  new  Item（）; 
 objItem.Name =  增值税; 
 objItem.Id =   2; 
 arr1.Add（objItem）; 
 
 cmbLedgerType.DataSource = arr1; 
 
 cmbLedgerType.DisplayMember =  名称; 
 cmbLedgerType.ValueMember =   Id; 
 ============================================== ============== 
 
类别项目
 {
  public   string 名称; 
  public   string  Id; 
} 

解决方案

最后只绑定数据..

 cmbLedgerType.DisplayMember =  名称; 
 cmbLedgerType.ValueMember =   Id; 
 cmbLedgerType.DataSource = arr1; 

检查这个链接

hi i'm getting flowing exception while binding combo box in widows form application




"Cannot bind to the new display member."


Code

 ArrayList arr1 = new ArrayList();
      Item objItem = new Item();
      objItem.Name="Vat";
      objItem.Id="2";
      arr1.Add(objItem);

      cmbLedgerType.DataSource = arr1;

      cmbLedgerType.DisplayMember = "Name";
      cmbLedgerType.ValueMember = "Id";
============================================================

Class Item
{
   public string Name;
   public string Id;
}

解决方案

Bind the Data at last only..

cmbLedgerType.DisplayMember = "Name";
          cmbLedgerType.ValueMember = "Id";
          cmbLedgerType.DataSource = arr1;

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