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Once again I know Im missing something simple (I really need to stop working so many hours lol). I have a CheckBoxList that is populated from a SQL database:
csharp
/// <summary> /// method for populating our admin sections CheckBoxList /// </summary> private void PopulateAdminSections() { QmetroAdmin admin = new QmetroAdmin(); //get a populated DataSet to bind our CheckBoxList to DataSet sections = admin.GetAdminSectionLst();
//make sure we got data if (!(sections == null) && sections.Tables["SectionList"].Rows.Count > 0) { //set it's data source cblSectionAccess.DataSource = sections; //set it's display value cblSectionAccess.DataTextField = "SectionName"; //set it's value cblSectionAccess.DataValueField = "SectionCode"; //bind it cblSectionAccess.DataBind(); }
//now dispose of our object admin = null; }
This populates my CheckBoxList the way it is supposed to. What Im having trouble with is getting the values the user selects. Here is the method I am using to do this
csharp
/// <summary> /// method for retrieving the selected items in our CheckBoxList /// </summary> /// <returns></returns> private string GetSelectedSections() { string[] selected; //ArayList for holding the sections for the user ArrayList sections = new ArrayList();
//now loop through all the sections for (int i = 0; i < cblSectionAccess.Items.Count; i++) { if (cblSectionAccess.Items[i].Selected) { sections.Add(cblSectionAccess.Items[i].Value); } }
//now we convert the ArrayList to a pipe delimited string selected = (string[])sections.ToArray(typeof(string)); return string.Join("|", selected); }
But GetSelectedSections is always returning an empty string, even when I select items in the list. See anything glaring that I'm doing wrong here?
/// <summary> /// method for retrieving the selected items in our CheckBoxList /// </summary> /// <returns></returns> private string GetSelectedSections() { string[] selected; //ArayList for holding the sections for the user ArrayList sections = new ArrayList();
foreach (ListItem item in cblSectionAccess.Items) { if (item.Selected) { sections.Add(item.Text); } }
//now we convert the ArrayList to a pipe delimited string selected = (string[])sections.ToArray(typeof(string)); return string.Join("|", selected); }
That was how I tried it at first Jay, still saying nothing is selected. I cannot for the life of me figure out why it's not detecting that a CheckBox is checked?
That is very strange indeed. I just set-up a project using the code I gave you and it worked just fine.
CODE
using System; using System.Data; using System.Configuration; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Collections;
public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) {
/// <summary> /// method for retrieving the selected items in our CheckBoxList /// </summary> /// <returns></returns> private string GetSelectedSections() { string[] selected; //ArayList for holding the sections for the user ArrayList sections = new ArrayList();
foreach (ListItem item in CheckBoxList1.Items) { if (item.Selected) { sections.Add(item.Text); } }
//now we convert the ArrayList to a pipe delimited string selected = (string[])sections.ToArray(typeof(string)); return string.Join("|", selected); } }
Hmm. I am not sure. But I see what you mean. It only seems to be a problem when bound to a DataSet. If you bind the control directly to the table it also works just fine.
I seen some examples online about binding it to a SqlDataReader, so I tried that and it still isn't working. What's the method you're referring to about binding it directly to the table? To a DataTable?
30 Apr, 2008 - 05:31 PM
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