Selecting Value from Dynamic DropDownList

[ralphiooo]

Hi i have a FormView control with a DropDownList in like so:

<aspropDownList ID="lstCategoryID" DataTextField="Text" DataValueField="Value" runat="server">
</aspropDownList>

And in the Page_Load event handler i have the following:

Dim lstCategoryID As DropDownList = CType(FormView1.FindControl("lstCategoryID"), DropDownList)

lstCategoryID.DataSource = Utilities.GetCategoriesList(_sectionID, 0, "")
lstCategoryID.DataBind()

Which populates the DropDownList fine but i need to select the appropriate value based on the CategoryID for the item i am editing.

I tried putting SelectedValue='<%# Eval("CategoryID") %>' on the dropdownlist but it returned the following error.

"'lstCategoryID' has a SelectedValue which is invalid because it does not exist in the list of items"

The trouble is the value for CategoryID is the item i am editing is in the DropDownList. I have had no problem in the past when the DropDownList was statically populated. Therefore i think the problem might be that i am binding the data in the code behind file but i don't know how to solve it.

Appreciate your help. Thanks

 

[tperri]

Is your drop down inside your formview or outside

 

[ralphiooo]

Inside the FormView that's why i had to put:

Dim lstCategoryID As DropDownList = CType(FormView1.FindControl("lstCategoryID"), DropDownList)

 

[ca8msm]

Once you have a reference to the DropDownList, try using:

myDropDownList.Items.FindByValue("myValue").Selected = True

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