Hi everybody,

I have the simple problem - two related comboboxes. One to select Category and another to select items by Category. I can not get it to work - it seems to only work the first time.

Do you see where is my problem in this code?

#region Select Category 
        private void cboCategories_SelectedIndexChanged(object sender, EventArgs e)
        {
            string SelectedItem = this.cboCategories.Text.Trim();
            if (SelectedItem != "Select Category")
            {
                this._inventoryEntries = _inventoryBiz.GetInventoryDictionaryByCategory(SelectedItem);

                foreach (KeyValuePair<string, string> kvp in this._inventoryEntries)
                {
                    this._inventoryList.Add(kvp.Key);
                }
                this.cboItems.Enabled = true;
                this.cboItems.DataSource = this._inventoryList;
            }
            else
                this.cboItems.Enabled = false; 
        }

        #endregion