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This is a Datagrid that i need to search or filter name or family of people by text box. how can i write code for TextChanged event. what's its method simply?

       <DataGrid Margin="3,33,145,43" AutoGenerateColumns="False" EnableRowVirtualization="True" ItemsSource="{Binding}" HeadersVisibility="All" HorizontalGridLinesBrush="DarkGray"
                 Name="grdPersonnel1" AlternatingRowremoved="LightGray" VerticalGridLinesBrush="DarkGray" HorizontalScrollBarVisibility="Auto" FontFamily="Courier New" FontSize="12"
                 FontWeight="Black" IsTextSearchEnabled="True" BorderBrush="DarkGray" VerticalContentAlignment="Center" IsReadOnly="True" >

               <DataGridTextColumn Binding="{Binding Path=ID}" Header="ID" Width="Auto"></DataGridTextColumn>
               <DataGridTextColumn Binding="{Binding Path=Name}" Header="Name" Width="Auto" ></DataGridTextColumn>
               <DataGridTextColumn Binding="{Binding Path=Family}" Header="Family" Width="Auto"></DataGridTextColumn>

    <TextBox Grid.Row="7" Height="23" HorizontalAlignment="Left" Margin="75,13,0,0" Name="txtFilter" VerticalAlignment="Top" Width="120" TextChanged="txtFilter_TextChanged" />
[no name] 6-Jul-12 14:57pm    
Perhaps you should explain what you mean by "how can i write code for TextChanged event. what's its method simply"
M.H. Shojaei 7-Jul-12 12:44pm    
I need a code or guidance for filtering datagrid.

You should look at the ICollectionView.

This is great for filtering data used in WPF!

However, a little more detail would have been nice. i.e what are you trying to do? what have you tried etc, are you using MVVM / Code behind!!

ICollectionView view = CollectionViewSource.GetDefaultView(newValue);
IEqualityComparer<string> comparer = StringComparer.InvariantCultureIgnoreCase;
view.Filter = o => { 
                     Person p = o as Person; 
                     return p.FirstName.Contains(SearchedText, comparer) 
                            || p.LastName.Contains(SearchedText, comparer); 
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M.H. Shojaei 7-Jul-12 12:59pm    
I want to filter datagrid column by textBox.
I resolved it:

<pre lang="c#"> private void textBox1_TextChanged(object sender, TextChangedEventArgs e)
                SqlConnection con = new SqlConnection(@"Data Source=.\SQLEXPRESS;AttachDbFilename=E:\Personel.mdf;Integrated Security=True;User Instance=True");
                SqlDataAdapter adapter = new SqlDataAdapter();
                adapter.SelectCommand = new SqlCommand();
                adapter.SelectCommand.Connection = con;
                adapter.SelectCommand.CommandText = "SELECT * FROM Personnels where Name like  N'%" + textBox1.Text + "%'";
                DataTable dt = new DataTable();
                grdPersonnel1.DataContext = dt;
            catch (Exception) { }
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Mr.VJ 19-Mar-14 0:42am    
great work mohammad hossein .... it helps me a lot ,thank u :)

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