how to use autocomplete textbox in Datagridview in Wpf application?

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C#

WPF

hi every one,


here i am new to wpf coding, now i am using a wpf application., here i want to implement a autocomplete option in datagridview control, i am already using this coding in my window application.....now i want to use in wpf application...and one more thing i am using Datagridview windowHost instead of Datagrid.....

here i am showing a Itemname from aDatabase.

if (this.grd_stock.CurrentCell.ColumnIndex == this.grd_stock.Columns["I_Name"].Index) //Item_name
               {

                   string[] postSource = autofind.AsEnumerable().Select<System.Data.DataRow, String>(x => x.Field<String>("Item_name")).ToArray();

                   TextBox te = e.Control as TextBox;
                   te.AutoCompleteMode = AutoCompleteMode.SuggestAppend;
                   //te.AutoCompleteCustomSource.AddRange(new string[] { "one", "two", "three" });
                   te.AutoCompleteCustomSource.AddRange(postSource);
                   te.AutoCompleteSource = AutoCompleteSource.CustomSource;
               }

now i am similar to datagridview autocomplete in Datagridview in WPF Application....