以编程方式将项添加到asp.net下拉列表 [英] Programmatically add items to asp.net dropdownlist

问题描述

我有一个下拉列表控件，我正在尝试在运行时从数据库中添加项目。但物品没有加载。这是我写的代码

 私有  Sub  Load_customer（）
 
 
  Dim  objdatas 作为 DataSet 
 
  Dim  retrieve  As  新 GenBizData.Customer_Class 
 
 
 objdatas = retrievas.CUSTFILE_SHOWALL2 
 
 我 .cmd_Customer.DataSource = objdatas.Tables（  CUSTFILE）
 < span class =code-keyword> Me  .cmd_Customer.DataTextField =   CUST_NAME 
 我 .cmd_Customer.DataValueField =   CUST_NUMBER  
 我 .cmd_Customer.Items.Add（  CUST_NUMBER）
 
 结束  Sub  

解决方案

检查一下： populatedropdown-vb [ ^ ]

< blockquote>试试这个

 我 .cmd_Customer.DataValueField =   CUST_NUMBER 
  我 .cmd_Customer.Databind（） 
 我 .cmd_Customer.Items.Add（  CUST_NUMBER）

谢谢，我找到了答案。



me.combobox.databind应该是最后一个声明并且有效

Hi,

I have a dropdownlist control and i am trying to add items from a database at runtime. but the items are not loading. this is the code I wrote

Private Sub Load_customer()


       Dim objdatas As DataSet

       Dim retrievas As New GenBizData.Customer_Class


       objdatas = retrievas.CUSTFILE_SHOWALL2

       Me.cmd_Customer.DataSource = objdatas.Tables("CUSTFILE")
       Me.cmd_Customer.DataTextField = "CUST_NAME"
       Me.cmd_Customer.DataValueField = "CUST_NUMBER"
       Me.cmd_Customer.Items.Add("CUST_NUMBER")

   End Sub

解决方案

Check this out: populatedropdown-vb[^]

Try this

Me.cmd_Customer.DataValueField = "CUST_NUMBER"
      Me.cmd_Customer.Databind()
      Me.cmd_Customer.Items.Add("CUST_NUMBER")

Thanks I found the answer.

me.combobox.databind should be the last statement and it worked

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