I have a repeater with a dropdownlist in it. When a user changes its index, I would like a label to change its value. (the ddlSizes values come from a MySQL DB)
Sizes.aspx
<asp:DropDownList ID="ddlSizes" runat="server" AutoPostBack="True" DataSourceID="objdsSizes" DataTextField="SizeName" DataValueField="SizeID" />
<asp:Label ID="lbldummy" runat="server" Text=""></asp:Label>
Sizes.aspx.vb
Protected Sub ddlSizes_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles ddlSizes.SelectedIndexChanged
lbldummy = ddlSizes.value
End Sub
But the ddlSizes.SelectedIndexChanged isn't recognized. So the value of lbldummy
won't change.
Any suggestions? Thank you.
You will want to create the handler for the DropDownList
, within this you need to have code which will convert the sender into a DropDownList
then get the parent control and convert it into the RepeaterItem
. From this you can then reference any other controls within the RepeaterItem
Public Sub ddlSizes_SelectedIndexChanged(sender As Object, e As EventArgs)
Dim ddlSizes As DropDownList = DirectCast(sender, DropDownList)
Dim ri As RepeaterItem = DirectCast(ddlSizes.Parent, RepeaterItem)
Dim lbldummy As Label = DirectCast(ri.FindControl("lbldummy"), Label)
lbldummy.Text = ddlSizes.SelectedValue
End Sub
Then on your ddlSizes DropDownList add OnSelectedIndexChanged="ddlSizes_SelectedIndexChanged"
and make sure it has AutoPostBack="True" set