“WPF ComboBox Filter saat Anda mengetik” Kode Jawaban

WPF ComboBox Filter saat Anda mengetik

<ComboBox x:Name="comboBox" HorizontalAlignment="Left" SelectedValuePath="Content" SelectedValue="{Binding RelativeSource={RelativeSource Mode=Self}, Path=Text}" VerticalAlignment="Top" Width="120" Margin="121,100,0,0"  IsEditable="True" KeyUp="comboBox_KeyUp" IsTextSearchEnabled="False">
    <ComboBoxItem Content="apple"/>
    <ComboBoxItem Content="banana"/>
    <ComboBoxItem Content="grape"/>
    <ComboBoxItem Content="lemon"/>
    <ComboBoxItem Content="strawberry"/>
</ComboBox>
Precious Petrel

WPF ComboBox Filter saat Anda mengetik

private void comboBox_KeyUp(object sender, KeyEventArgs e)
{
    var combobox = (ComboBox)sender;
    var ctb = combobox.Template.FindName("PART_EditableTextBox", combobox) as TextBox;
    if (ctb == null) return;
    if (Keyboard.Modifiers.HasFlag(ModifierKeys.Shift) || Keyboard.Modifiers.HasFlag(ModifierKeys.Control) || Keyboard.Modifiers.HasFlag(ModifierKeys.Alt))
    return;
    var caretPos = ctb.CaretIndex;
    combobox.IsDropDownOpen = true;

    CollectionView itemsViewOriginal = (CollectionView)CollectionViewSource.GetDefaultView(combobox.Items);
    itemsViewOriginal.Filter = ((o) =>
    {
        if (String.IsNullOrEmpty(combobox.Text))
        {
            return true;
        }
        else
        {
            if (((ComboBoxItem)o).Content.ToString().StartsWith(combobox.Text, true, null))
            {
                return true;
            }
            else
            {
                return false;
            }
        }
    });

    itemsViewOriginal.Refresh();
    ctb.CaretIndex = caretPos;
}
Precious Petrel

Jawaban yang mirip dengan “WPF ComboBox Filter saat Anda mengetik”

Pertanyaan yang mirip dengan “WPF ComboBox Filter saat Anda mengetik”

Lebih banyak jawaban terkait untuk “WPF ComboBox Filter saat Anda mengetik” di C#

Jelajahi jawaban kode populer menurut bahasa

Jelajahi bahasa kode lainnya

Shell/Bash
C#
C++
C
CSS
HTML
Java
JavaScript
Objective-C
PHP
Python
Sql
Swift
Ruby
TypeScript
Go
Kotlin
Assembly
R
VBA
Scala
Rust
Dart
Elixir
Clojure
Haskell
Matlab
Erlang
Cobol
Fortran
Scheme
Perl
Groovy
Lua
Julia
Delphi
Abap
Lisp
Prolog
Pascal
ActionScript
Basic
Solidity
PowerShell
GDScript
Excel