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HomeHomeUsing DNN Platf...Using DNN Platf...Administration ...Administration ...Populate a listbox control from a database - help....pleasePopulate a listbox control from a database - help....please
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3/19/2008 2:08 AM
 
Brad Bates

Joined: 6/15/2003
Posts: 8

Hi,

I'm working on a DNN module that requires uses to select a number of options from a listbox control. Once the user makes their selections within the listbox control, the data is stored in a database. My challenge is that if a user want's to edit their listbox selections, I don't know how to populate the listbox items from a database indicating which items were selected. Here's the code that I have so far:

 

Dim objPC As New ProjectControllerDim arrPc As ArrayList = objPC.GetProjectsCategories(ProjectId)

 

Dim Item As String

 

 

 

For Each Item In arrPcDim currentCheckBox As ListItem = ChkLstProjectCategories.Items.FindByValue(Item("ProjectCategoryId").ToString())If currentCheckBox IsNot Nothing Then

currentCheckBox.Selected =

True

 

End If

 

Next

 

End Sub

Can anyone see what I'm doing wrong here? Do you have some code to share that would help me get this to work?

Many thx

Brad

 
 
New Post
12/4/2008 7:04 PM
 
Mr Anderson


Joined: 11/14/2006
Posts: 126

Hope this helps.

To select an item for a listbox do the following:

Populate the listbox as you normally would.

After populating try the following, to which you'll need to supply the listbox name as indicated by yourListBoxIDhere

yourListBoxIdHere.SelectedItem = yourListBoxIdHere.Items.IndexOf(yourListBoxIdHere.Items.FindByValue("WhatYouAreLookingFor"))

The only thing I don't know is how to get it to select multiple values, should you allow that. Also, most likely WhatYouAreLookingFor is probably going to be an int or Integer since you might have it as an index value of some sort from your database.

Hope that helps.
 
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