如何使用字符串和值填充DropDownList [英] How Do I Populate A DropDownList with Strings and Values

问题描述

我正在尝试使用Array填充DropDownList，其中包含List，A及其值B中显示的内容。

I am trying to populate a DropDownList with an Array with what is shown in the List, A, and its value, B.

<asp:DropDownList ID="DropDownList1" runat="server" />

Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim A(10), B(10) As String
        A(0) = "this"
        A(1) = "that"
        A(2) = "something else"
        A(3) = "this else"
        A(4) = "that else"
        A(5) = "something something else"
        B(0) = "1"
        B(1) = "2"
        B(2) = "3"
        B(4) = "4"
        B(5) = "5"
        'populate DropDownList1 with A
        DropDownList1.DataSource = A
        DropDownList1.DataTextField = A
        DropDownList1.DataValueField = B
        DropDownList1.DataBind()
    End Sub

推荐答案

您可以填充DropDownList这样。

You can populate a DropDownList like this way.

Protected Sub Button1_Click(sender As Object, e As EventArgs)

    Dim ItemList As IList(Of Object) = New List(Of Object)
    ItemList.Add(New With {.A = "this", .B = "1"})
    ItemList.Add(New With {.A = "that", .B = "2"})
    ItemList.Add(New With {.A = "something else", .B = "3"})
    ItemList.Add(New With {.A = "this else", .B = "4"})        
    ItemList.Add(New With {.A = "something something else", .B = "5"})

    'populate DropDownList1 with A
    DropDownList1.DataSource = ItemList
    DropDownList1.DataTextField = "A"
    DropDownList1.DataValueField = "B"
    DropDownList1.DataBind()

End Sub

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