Developer Forum

I am trying to use code to create a dropdownlist box that has different
values than text for instance:

<asp:DropDownList id="someID" runat="server">
<asp:listitem value="12345">ABCDE</asp:listitem>
<asp:listitem value="98765">FGHIJ</asp:listitem>
</asp:DropDownList>

I am using code similar to the following:
----------------------------------------------------
dim ddListItemCollection as New ListItemCollection
dim i as integer
dim strI as string

for i = 0 to 3
strI = "Some string based on i"
ddListItemCollection.Add(New ListItem(strI,i))
next
------------------------------------------------------------
This should render HTML something like

<select name="SomeName" id="SomeID">
<option value="0">Some string based on 0</option>
<option value="1">Some string based on 1</option>
<option value="2">Some string based on 2</option>
<option value="3">Some string based on 3</option>
</select>

But it is coming out like this:

<select name="SomeName" id="SomeID">
<option value="Some string based on 0">Some string based on 0</option>
<option value="Some string based on 1">Some string based on 1</option>
<option value="Some string based on 2">Some string based on 2</option>
<option value="Some string based on 3">Some string based on 3</option>
</select>

where the Value attribute is taking it's value from the text property.

I need to set the value as something different than the text. Any help you
all can offer will be appreciated.

Thanks,

Ron

Hi Ron,

As for the DropDownList adding items problem, I've also done some tests ,it
seems that the ListItem's
[Visual Basic]
Public Sub New( _
ByVal text As String, _
ByVal value As String _
)

constructor can works as long as we set the text and value with the correct
string. Here is the test code I used:
#phMain is a placeholder on the page
====================
Dim lst As New System.Web.UI.WebControls.DropDownList

lst.ID = "lstValues"

Dim item As ListItem
For i = 1 To 5

lst.Items.Add(New ListItem("text_" + i.ToString(), i))

Next

phMain.Controls.Add(lst)
===========================

In addition, we can also use databinding to add items into dropdownlist,
for example:
#listMain is a dropdownlist on the page
==========================
Private Sub Bind_Data()

Dim items As New ListItemCollection

Dim i As Int32

For i = 1 To 10

Dim item As New ListItem
item.Text = "Text" + i.ToString()
item.Value = "Value" + i.ToString()

items.Add(item)
Next

lstMain.DataSource = items
lstMain.DataTextField = "Text"
lstMain.DataValueField = "Value"
lstMain.DataBind()

End Sub
======================

You may have a try on both. If there is still anything unclear, please feel
free to post here. Thanks.

Regards,

Steven Cheng
Microsoft Online Support

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