Whats wrong in this code

Question

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hi i'm getting flowing exception while binding combo box in widows form application

"Cannot bind to the new display member."

Code

C#

 ArrayList arr1 = new ArrayList();
      Item objItem = new Item();
      objItem.Name="Vat";
      objItem.Id="2";
      arr1.Add(objItem);

      cmbLedgerType.DataSource = arr1;

      cmbLedgerType.DisplayMember = "Name";
      cmbLedgerType.ValueMember = "Id";
============================================================

Class Item
{
   public string Name;
   public string Id;
}

Posted 29-Jan-14 1:36am

Member 10296413

Updated 29-Jan-14 3:10am

bowlturner

v2

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2 solutions

Solution 1

Bind the Data at last only..

C#

cmbLedgerType.DisplayMember = "Name";
          cmbLedgerType.ValueMember = "Id";
          cmbLedgerType.DataSource = arr1;

Posted 29-Jan-14 1:40am

Karthik_Mahalingam

Comments

Member 10296413 30-Jan-14 6:33am

I chnged the code but in combo box i'm getting "WindowsFormsBilling.Item"

Karthik_Mahalingam 30-Jan-14 7:19am

try this code..
ArrayList arr1 = new ArrayList();
Item objItem = new Item();
objItem.Name = "Vat";
objItem.Id = "2";
arr1.Add(objItem);

DataTable dt = new DataTable();
dt.Columns.Add("Name", typeof(string));
dt.Columns.Add("Id", typeof(string));
arr1.OfType<item>().ToList().ForEach(k => dt.Rows.Add(k.Name, k.Id));
cmbLedgerType.DisplayMember = "Name";
cmbLedgerType.ValueMember = "Id";
cmbLedgerType.DataSource = dt;

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V5709 · Accepted Answer · 2014-01-29T19:38:00

Solution 2

Check this link

Posted 29-Jan-14 19:38pm

V5709