If you only want to highlight the cells with the text from the TextBox
you could make an AttatchedProperty
for the DataGrid
to accept your search value from the TextBox
and create another AttatchedProperty
for the Cell
to indicate a match that you can usee to set properties in the Cell
style. Then we create a IMultiValueConverter
to check the Cell
value for a match to the search Text
.
This way its reusable on other projects as you only need the AttachedProperties
and Converter
Bind the AttachedProperty
SearchValue
to your TextBox
Text
property.
<DataGrid local:DataGridTextSearch.SearchValue="{Binding ElementName=SearchBox, Path=Text, UpdateSourceTrigger=PropertyChanged}"
Then create a Style
for DataGridCell
and create a Setter for the AttachedProperty
IsTextMatch
using the IMultiValueConverter
to return if the cells text matches the SearchValue
<Setter Property="local:DataGridTextSearch.IsTextMatch">
<Setter.Value>
<MultiBinding Converter="{StaticResource SearchValueConverter}">
<Binding RelativeSource="{RelativeSource Self}" Path="Content.Text" />
<Binding RelativeSource="{RelativeSource Self}" Path="(local:DataGridTextSearch.SearchValue)" />
</MultiBinding>
</Setter.Value>
</Setter>
Then we can use the Cells
attached IsTextMatch
property to set a highlight using a Trigger
<Style.Triggers>
<Trigger Property="local:DataGridTextSearch.IsTextMatch" Value="True">
<Setter Property="Background" Value="Orange" />
</Trigger>
</Style.Triggers>
Here is a working example showing my rambilings :)
Code:
namespace WpfApplication17
{
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
for (int i = 0; i < 20; i++)
{
TestData.Add(new TestClass { MyProperty = GetRandomText(), MyProperty2 = GetRandomText(), MyProperty3 = GetRandomText() });
}
}
private string GetRandomText()
{
return System.IO.Path.GetFileNameWithoutExtension(System.IO.Path.GetRandomFileName());
}
private ObservableCollection<TestClass> _testData = new ObservableCollection<TestClass>();
public ObservableCollection<TestClass> TestData
{
get { return _testData; }
set { _testData = value; }
}
}
public class TestClass
{
public string MyProperty { get; set; }
public string MyProperty2 { get; set; }
public string MyProperty3 { get; set; }
}
public static class DataGridTextSearch
{
// Using a DependencyProperty as the backing store for SearchValue. This enables animation, styling, binding, etc...
public static readonly DependencyProperty SearchValueProperty =
DependencyProperty.RegisterAttached("SearchValue", typeof(string), typeof(DataGridTextSearch),
new FrameworkPropertyMetadata(string.Empty, FrameworkPropertyMetadataOptions.Inherits));
public static string GetSearchValue(DependencyObject obj)
{
return (string)obj.GetValue(SearchValueProperty);
}
public static void SetSearchValue(DependencyObject obj, string value)
{
obj.SetValue(SearchValueProperty, value);
}
// Using a DependencyProperty as the backing store for IsTextMatch. This enables animation, styling, binding, etc...
public static readonly DependencyProperty IsTextMatchProperty =
DependencyProperty.RegisterAttached("IsTextMatch", typeof(bool), typeof(DataGridTextSearch), new UIPropertyMetadata(false));
public static bool GetIsTextMatch(DependencyObject obj)
{
return (bool)obj.GetValue(IsTextMatchProperty);
}
public static void SetIsTextMatch(DependencyObject obj, bool value)
{
obj.SetValue(IsTextMatchProperty, value);
}
}
public class SearchValueConverter : IMultiValueConverter
{
public object Convert(object[] values, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
string cellText = values[0] == null ? string.Empty : values[0].ToString();
string searchText = values[1] as string;
if (!string.IsNullOrEmpty(searchText) && !string.IsNullOrEmpty(cellText))
{
return cellText.ToLower().StartsWith(searchText.ToLower());
}
return false;
}
public object[] ConvertBack(object value, Type[] targetTypes, object parameter, System.Globalization.CultureInfo culture)
{
return null;
}
}
}
Xaml:
<Window x:Class="WpfApplication17.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:WpfApplication17"
Title="MainWindow" Height="350" Width="525" Name="UI">
<StackPanel DataContext="{Binding ElementName=UI}">
<TextBox Name="SearchBox" />
<DataGrid x:Name="grid" local:DataGridTextSearch.SearchValue="{Binding ElementName=SearchBox, Path=Text, UpdateSourceTrigger=PropertyChanged}"
ItemsSource="{Binding TestData}" >
<DataGrid.Resources>
<local:SearchValueConverter x:Key="SearchValueConverter" />
<Style TargetType="{x:Type DataGridCell}">
<Setter Property="local:DataGridTextSearch.IsTextMatch">
<Setter.Value>
<MultiBinding Converter="{StaticResource SearchValueConverter}">
<Binding RelativeSource="{RelativeSource Self}" Path="Content.Text" />
<Binding RelativeSource="{RelativeSource Self}" Path="(local:DataGridTextSearch.SearchValue)" />
</MultiBinding>
</Setter.Value>
</Setter>
<Style.Triggers>
<Trigger Property="local:DataGridTextSearch.IsTextMatch" Value="True">
<Setter Property="Background" Value="Orange" />
</Trigger>
</Style.Triggers>
</Style>
</DataGrid.Resources>
</DataGrid>
</StackPanel>
</Window>
Result:
![enter image description here](https://i.stack.imgur.com/NVERO.png)
Edit:
If you just want to select the row based on a single Column you can modify quite easily :).
Override the Style of DataGridRow
instead of DataGridCell
.
<Style TargetType="{x:Type DataGridRow}">
First pass in the property you want into the IMultiValueConverter
this should be your DataContext
<MultiBinding Converter="{StaticResource SearchValueConverter}">
<Binding RelativeSource="{RelativeSource Self}" Path="DataContext.MyProperty" />
<Binding RelativeSource="{RelativeSource Self}" Path="(local:DataGridTextSearch.SearchValue)" />
</MultiBinding>
Then change the Trigger
to set IsSelected
on the Row
<Style.Triggers>
<Trigger Property="local:DataGridTextSearch.IsTextMatch" Value="True">
<Setter Property="IsSelected" Value="True" />
</Trigger>
</Style.Triggers>
Should look like this:
<DataGrid x:Name="grid" local:DataGridTextSearch.SearchValue="{Binding ElementName=SearchBox, Path=Text, UpdateSourceTrigger=PropertyChanged}"
ItemsSource="{Binding TestData}" >
<DataGrid.Resources>
<local:SearchValueConverter x:Key="SearchValueConverter" />
<Style TargetType="{x:Type DataGridRow}">
<Setter Property="local:DataGridTextSearch.IsTextMatch">
<Setter.Value>
<MultiBinding Converter="{StaticResource SearchValueConverter}">
<Binding RelativeSource="{RelativeSource Self}" Path="DataContext.MyProperty" />
<Binding RelativeSource="{RelativeSource Self}" Path="(local:DataGridTextSearch.SearchValue)" />
</MultiBinding>
</Setter.Value>
</Setter>
<Style.Triggers>
<Trigger Property="local:DataGridTextSearch.IsTextMatch" Value="True">
<Setter Property="IsSelected" Value="True" />
</Trigger>
</Style.Triggers>
</Style>
</DataGrid.Resources>
</DataGrid>
Result:
![enter image description here](https://i.stack.imgur.com/hIGZ3.png)