WPF GetValue

Site Index





<Canvas  Height="500" Width="780">

    <Grid  Height="500" Width="780">

        <Grid.RowDefinitions>

            <RowDefinition Height="10" />

            <RowDefinition Height="50" />

            <RowDefinition Height="*" />

        </Grid.RowDefinitions>

        <Grid.ColumnDefinitions>

            <ColumnDefinition Width="10" />

            <ColumnDefinition Width="4*" />

            <ColumnDefinition Width="1*" />

        </Grid.ColumnDefinitions>

        <DataGrid AutoGenerateColumns="True" Grid.Column="2" Grid.Row="2" Margin="3" Name="dataGrid1" />

        <Button Content="Set" Grid.Column="2" Grid.Row="1" Margin="3" Name="button_Set" Click="button_Set_Click" />

        <Canvas Grid.Column="1" Grid.Row="2" Margin="3" Name="xaml_canvas1" Background="Black">

            <Button Canvas.Left="275" Canvas.Top="182" Content="999" Height="25" Name="button999" Width="30" Background="Yellow"/>

        </Canvas>

    </Grid>

</Canvas>









private void proc_set_button()

{

    for (int idx = 0; idx < 4; idx++)

    {

        z_tag_Button[idx] = new Button();

        z_tag_Button[idx].Width = 30;

        z_tag_Button[idx].Height = 25;

        z_tag_Button[idx].Content = idx;

        xaml_canvas1.Children.Add(z_tag_Button[idx]);

    }

    //***********************************

    //  ボタン位置取得 (canvas内)

    //***********************************

    double w_left_999 = Convert.ToDouble(button999.GetValue(Canvas.LeftProperty));

    double w_top_999 = Convert.ToDouble(button999.GetValue(Canvas.TopProperty));
    z_tag_Button[0].SetValue(Canvas.LeftProperty, w_left_999);

    z_tag_Button[0].SetValue(Canvas.TopProperty, 100.0);
    z_tag_Button[1].SetValue(Canvas.LeftProperty, 100.0);

    z_tag_Button[1].SetValue(Canvas.TopProperty, w_top_999);

    //***********************************

    //  暗黙値は普通には取得不能

    //***********************************

    double w_canvas_height = Convert.ToDouble(xaml_canvas1.GetValue(HeightProperty));

    double w_canvas_width = Convert.ToDouble(xaml_canvas1.GetValue(WidthProperty));

    z_tag_Button[2].SetValue(Canvas.LeftProperty, w_canvas_width / 2);

    z_tag_Button[2].SetValue(Canvas.TopProperty, w_canvas_height / 2);

    //***********************************

    //  ボトムからの位置指定  

    //***********************************

    z_tag_Button[3].SetValue(Canvas.LeftProperty, 450.0);

    z_tag_Button[3].SetValue(Canvas.BottomProperty, 150.0);

}




AX