Adding first blank row to combobox

Hi
I am populating the combobox with following code. I would like to ADD AND display a blank row as first row while loading the combobox and want to get rid of -1.
 private void Fillcmbmenusubgroupid()
        {
            try
            {
               

                bucketmenusubgroup.PredicateExpression.Add(MenusubgroupFields.Flag ==
                                                           StandardFlag.recordvalidflag);
                adaptermenusubgroup.FetchEntityCollection(datasourcemenusubgroup, bucketmenusubgroup,
                                                          0,
                                                          new SortExpression(
                                                              MenusubgroupFields.Description |
                                                              SortOperator.Ascending));

                cmbmenusubgroupid.DataSource = datasourcemenusubgroup;
                cmbmenusubgroupid.ValueMember = "MENUSUBGROUPID";
                cmbmenusubgroupid.DisplayMember = "DECRIPTION";
                cmbmenusubgroupid.SelectedIndex = -1;
               
               
            }
            catch (Exception ex)
            {
                GlobalErrorHandler.LogMessage(ex.StackTrace);
            }
            finally
            {
                adaptermenusubgroup.CloseConnection();
            }
        }
GRChandrashekarAsked:
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joriszwaenepoelConnect With a Mentor Commented:
You can insert a new object into the "datasourcemenusubgroup" collection (at index 0) with an ID that you can recognize, and an empty description.

var emptyItem = New Xxxxx();
emptyItem.MENUSUBGROUPID = "0"
emptyItem.DECRIPTION = string.Empty;
datasourcemenusubgroup.Insert(0, emptyItem);
cmbmenusubgroupid.DataSource = datasourcemenusubgroup;
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nipunuCommented:
<asp:DropDownList ID="DropDownListID" AppendDataBoundItems="true" runat="server">
     <asp:ListItem Text="Default text" Value="Default value" />
</asp:DropDownList>

Append data bound items  = true make sure that it will not remove your default item
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GRChandrashekarAuthor Commented:
Sorry This is winforms
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nipunuCommented:
Try Create a object of ListItem specify value and text and then set the selected property of the listitem object to true and add listItem object to dropdownlist items collection. If the default that you want to set is already in your dropdown list then you can iterate over dropdownlist Items collection and set the selected property of the desired item in the collection.



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GRChandrashekarAuthor Commented:
Can I have code example to match my code ?
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GRChandrashekarAuthor Commented:
Can I have code example to match my code ?
0
 
GRChandrashekarAuthor Commented:
Not getting first line

 var emptyItem = new myitem();

"myitem" cannot resolve symbol
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