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pre-selecting checkboxlist items not working

Posted on 2006-11-09
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Last Modified: 2012-06-27
We have a checkboxlist control that displays a list of checkboxes.   We need to have all of these checked when the form loads.  We've written code to do this, but when the page loads, all the checkboxes remain unchecked.  Below is the relevant code, any ideas?

This is the control on our .ascx file:
<asp:CheckBoxList id="cblTypeOfDiabetes" runat="server" RepeatLayout="Flow" RepeatDirection="Vertical" DataTextField="Text" DataValueField="Value"  />


This is in the code-behind, .cs file.  Everything works, like checkboxes have proper text and values, but they are not pre-selected.

      // create DataTable to store value/text for each checkbox
      cblTable = new DataTable("Diabetes");
      cblTable.Columns.Add(new DataColumn("Value"));
      cblTable.Columns.Add(new DataColumn("Text"));

      // get data from content management system.
      Item diabetesFolder = Sitecore.Context.Database.Items["/sitecore/content/Reference/Diabetes"];
      Item[] diabetesItems = diabetesFolder.Axes.SelectItems("./*[@@templatename='Checklist Item']");

      // populate DataTable
      foreach (Item diabetesItem in diabetesItems)
      {
        DataRow row = cblTable.NewRow();
        row["Value"] = diabetesItem.ID.ToString();
        row["Text"] = diabetesItem.Fields["label"].Value;
        cblTable.Rows.Add(row);
      }

      // bind datasource to checkboxlist
      cblTypeOfDiabetes.DataSource = cblTable;
      cblTypeOfDiabetes.DataTextField = "Text";
      cblTypeOfDiabetes.DataValueField = "Value";
      cblTypeOfDiabetes.DataBind();

      // pre-select each item.  NOTE: when checkboxes are rendered on the web page, they are still not selected??
      foreach (ListItem li in cblTypeOfDiabetes.Items)
      {
        li.Selected = true;
      }
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Question by:mtadj
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2 Comments
 
LVL 28

Accepted Solution

by:
strickdd earned 2000 total points
ID: 17906018
Try this, add it under (not in) the PageLoad function


protected void Page_PreRender(object sender, EventArgs e)
    {
          / pre-select each item.  NOTE: when checkboxes are rendered on the web page, they are still not selected??
      foreach (ListItem li in cblTypeOfDiabetes.Items)
      {
        li.Selected = true;
      }                                
    }
0
 

Author Comment

by:mtadj
ID: 17906162
true genius.  Thanks so much!
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