動作環境
Windows 7 Pro (32bit)
Microsoft Visual Studio 2017 Community
Sublime Text 2
http://gushwell.ldblog.jp/archives/52333750.html
を参考にObjectDataProvider を用いて作成クラスの関数を使う例を勉強中。
引数を使う例を検討してみた。
- IEnumerableの関数に引数を追加
- ObjectDataProvider.MethodParametersを指定
- xmlns:system定義
- system:Boolean使用
v0.1
MainWindow.xaml.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
namespace _170606_t1333_ObjectDataProvider
{
/// <summary>
/// MainWindow.xaml の相互作用ロジック
/// </summary>
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
}
}
public class NumberUtil
{
public IEnumerable<int> GetRandomNumbers()
{
var rnd = new Random();
for (int idx=0; idx<12; idx++)
{
yield return rnd.Next(100, 1000);
}
}
public IEnumerable<int> GetIndexNumbers(bool isOdd)
{
int start = isOdd ? 1 : 0;
for (int idx = start; idx < 12 * 2; idx+=2)
{
yield return idx;
}
}
}
}
MainWindow.xaml
<Window x:Class="_170606_t1333_ObjectDataProvider.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:_170606_t1333_ObjectDataProvider"
xmlns:system="clr-namespace:System;assembly=mscorlib"
mc:Ignorable="d"
Title="MainWindow" Height="350" Width="525">
<Window.Resources>
<ObjectDataProvider ObjectType="{x:Type local:NumberUtil}"
MethodName="GetRandomNumbers" x:Key="RandomNum"/>
<ObjectDataProvider ObjectType="{x:Type local:NumberUtil}"
MethodName="GetIndexNumbers" x:Key="IndexNum_odd">
<ObjectDataProvider.MethodParameters>
<system:Boolean>True</system:Boolean>
</ObjectDataProvider.MethodParameters>
</ObjectDataProvider>
<ObjectDataProvider ObjectType="{x:Type local:NumberUtil}"
MethodName="GetIndexNumbers" x:Key="IndexNum_even">
<ObjectDataProvider.MethodParameters>
<system:Boolean>False</system:Boolean>
</ObjectDataProvider.MethodParameters>
</ObjectDataProvider>
</Window.Resources>
<Grid>
<StackPanel Orientation="Horizontal">
<ListBox Height="300" Margin="5"
ItemsSource="{Binding Mode=OneWay, Source={StaticResource IndexNum_odd}}"/>
<ListBox Height="300" Margin="5"
ItemsSource="{Binding Mode=OneWay, Source={StaticResource IndexNum_even}}"/>
<ListBox Height="300" Margin="5"
ItemsSource="{Binding Mode=OneWay, Source={StaticResource RandomNum}}"/>
</StackPanel>
</Grid>
</Window>
XAMLの方はMethodParametersをマークアップ拡張で与えることができれば、もっとコンパクトになるだろうが、今は分からない。