WPF

sunilkpv wrote:

Well this is what I have implemented. Can you tell me whether this code will also lead to memory leaks.

<UserControl x:Class="SilverlightApplication5.MainPage"
    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"
    mc:Ignorable="d"
    d:DesignHeight="300" d:DesignWidth="400" xmlns:dataInput="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls.Data.Input">
    <UserControl.Resources >
        <Style x:Key="TitleBaseStyle" TargetType="dataInput:Label">
            <Setter Property="Width" Value="60" />
            <Setter Property="Height" Value="30" />
            <Setter Property="Background" Value="Black" />
            <Setter Property="Foreground" Value="White" />
            <Setter Property="FontSize" Value="17" />
            <Setter Property="Padding" Value="0" />
            <Setter Property="HorizontalAlignment" Value="Center" />
            <Setter Property="HorizontalContentAlignment" Value="Center" />
            <Setter Property="VerticalAlignment" Value="Center" />
            <Setter Property="VerticalContentAlignment" Value="Center" />
            <Setter Property="RenderTransformOrigin" Value="0.5,0.5" />
        </Style>

    </UserControl.Resources>

        <Grid x:Name="LayoutRoot" Background="White">
        <Button Content="Button" Height="23" HorizontalAlignment="Left" Margin="156,190,0,0" Name="button1" VerticalAlignment="Top" Width="75" Click="button1_Click" />
        <dataInput:Label Style="{StaticResource TitleBaseStyle}" Height="23" HorizontalAlignment="Left" Margin="81,190,0,0" Name="label1" VerticalAlignment="Top" Width="57"/>
        <Image Height="91" HorizontalAlignment="Left" Margin="137,93,0,0" Name="image1" Stretch="Fill" VerticalAlignment="Top" Width="110" />
    </Grid>
</UserControl>

using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using System.Windows.Media.Imaging;

namespace SilverlightApplication5
{
    public partial class MainPage : UserControl
    {
        public MainPage()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, RoutedEventArgs e)
        {
            label1.Content = "WHMC";
            WriteableBitmap bmp = new WriteableBitmap(60, 60);
            bmp.Render(label1, new RotateTransform() { Angle = 0 });
            bmp.Invalidate();

            image1.HorizontalAlignment = HorizontalAlignment.Center;
            image1.VerticalAlignment = VerticalAlignment.Center;
            image1.Width = bmp.PixelWidth;
            image1.Height = bmp.PixelHeight;
            image1.Source = bmp;
        }
    }
}