ASP.NET CheckboxList checked values not stored

Question

I'm having a bit of trouble with my CheckBoxList control in ASP.NET - it seems to not store the values that I have checked (?)

This is the test-code I have at the moment:

for (int i = 0; i < cbMemberTypes.Items.Count; i++)
{
   if (cbMemberTypes.Items[i].Selected)
   {
      // do stuff
   }
}

I have tried to output the amount of checked items, but it is always returning 0. I'm rather lost here, because in my other usercontrol, it works perfectly! Any hints on this will be greatly appreciated! :-)

Brad · Accepted Answer · 2010-11-30 13:33:09Z

3

Ditto @Shiraz: check to see if you are binding or setting values in the Page_Load.

Since Page_Load fires before the button click event handler, the control is being rebound each time you click and the users' selection is wiped out. Try wrap it in a if(!IsPostBack) { /* bind CBLlist */ }.

edited Nov 30, 2010 at 13:33

answered Nov 30, 2010 at 13:26

Brad

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4 Comments

bomortensen Over a year ago

Hey Brad, yes i'm binding in the Page_Load event :) Else the values of the checkboxlist wouldn't show up. I'm binding like this: cbMemberTypes.DataSource = foedeVareNode.Children; cbMemberTypes.DataTextField = "Name"; cbMemberTypes.DataBind();

bomortensen Over a year ago

Sadly I can't debug it because it's a usercontrol i'm using in Umbraco CMS :(

Brad Over a year ago

@bomortensen, it's definitely a life-cycle issue; check my edits.

bomortensen Over a year ago

Brad, thanks a lot! I honestly don't know why I didn't see that! That was one those "facepalm" moments ;)

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