Getting the valueMember of the checked item in the checkBoxList control

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Hi all,

I have a checkBoxList with items bound like this:

var accessories = from m_accessories in DB.Maintenance_Accessories
                  select m_accessories;

DataTable dt_Accessories = new DataTable();
dt_Accessories.Columns.Add("a_ID", typeof(int));
dt_Accessories.Columns.Add("a_Name", typeof(string));
foreach (var a in accessories)
{
    dt_Accessories.Rows.Add(a.Id, a.Name);
}
DataRow dr2 = dt_Accessories.NewRow();
dr2[0] = -1;
dr2[1] = "Other";
dt_Accessories.Rows.InsertAt(dr2, dt_Accessories.Rows.Count);
if (dt_Accessories.Rows.Count > 0)
{
    (chkList_Accessories as ListBox).DataSource = dt_Accessories;
    (chkList_Accessories as ListBox).DisplayMember = "a_Name";
    (chkList_Accessories as ListBox).ValueMember = "a_ID";
}

My problem now is that I want to Get the valueMember of the checked items in The checkBoxList, I tried this code but it didn't work:

Maintenance_Application_Accessory app_acc = new Maintenance_Application_Accessory();
for (int i = 0; i < chkList_Accessories.Items.Count - 1; i++)
{
    if (chkList_Accessories.GetItemCheckState(i) == CheckState.Checked)
    {
        //Here is my problem
        app_acc.Accessory_Id = int.Parse((chkList_Accessories as ListBox).ValueMember);
    }
}

What should I write else ?

Thanks in advance,

Best regards,
Michael Waguih
:)

Posted 21-Aug-13 0:02am

Michael Waguih

Updated 21-Aug-13 0:05am

v2

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Coder Jet · Accepted Answer · 2013-08-21T01:30:00

For every item which is checked, you'll need to treat it as a DataRow. In order to do so, you can just cast it as a DataRowView and look for the 'Column' which contains the value you want.

C#

int[] currentSelectedValue = new int[this.checkedListBox1.CheckedItems.Count];
for (int i = 0; i <= this.checkedListBox1.CheckedItems.Count - 1; i++)
{
    currentSelectedValue[i] = Convert.ToInt32((this.checkedListBox1.CheckedItems[i] as DataRowView)["ValueMember"]); ///The name of the column you use for the ValueMember property.
}

So in this case, look for the column which you've dedicated as the ValueMember column.
It's also easier to create a for loop which is only looping through checked items. :)

Hope this helps.