我有一个由数据库填充的下拉列表,我需要获得所选名称的客户表"Id",但我得到了下拉列表的selectedIndex,它与表不对应;
这会按姓氏的字母顺序用4个名字填充下拉列表,所以Miko Alcot是第一个,下拉列表给Miko一个selectedIndex"1",但我需要Customer Table Id"4"。我该怎么做?我正在使用下拉列表。SelectedIndex.ToStrgin(),它会给我下拉列表的选定索引,而不是与名称对应的表Id。
Customer Table GenericAttribute Table
Id Username EntityId Key Value
1 foo 1 fname John
2 bar 1 lname Doe
3 flip 2 fname Greg
4 flop 2 lname Zowiski
3 fname Paula
3 lname Lindhurst
4 fname Miko
4 lname Alcot
Dim Adapter9 As New SqlDataAdapter("SELECT [firstname] + ' ' + [lastname] As Name, Id, UserName From (Select a.Id, a.UserName, b.[key], b.[Value] From Customer a INNER JOIN GenericAttribute b ON a.Id = b.EntityId Where UserName IS NOT NULL) org PIVOT (MAX([Value]) For [Key] In ([firstname], [lastname])) pvt Order by [lastname] ASC", "Data Source=myDataSource")
Dim Dataset9 As New DataSet
Adapter9.Fill(Dataset9, "Customer")
ddlUsers.DataSource = Dataset9
ddlUsers.DataTextField = "Name"
ddlUsers.DataValueField = "Id"
ddlUsers.DataBind()
ddlUsers.Items.Insert(0, New ListItem("--Select User--", "0"))
来自评论
在selected index changed even
中添加以下代码ddlUsers.selectedValue
并再次检查
您可以使用SelectedIndexChanged事件来检查ddlUsers.SelectedValue属性。