我正在制作各种图像库,当前正在通过C#将图像动态加载到网格中。如果我不应该使用网格来显示图像,我很乐意将其更改为更适合的控件,但它必须对窗口大小调整友好。
调整窗口大小时,我希望发生以下事情:
这意味着,如果将窗口的大小调整为非常薄且非常高,则网格将包含一列(或两列,或者需要许多列)和许多行以显示图像。
如果宽度非常大但不高,那么它将只有一个(或两个,或者需要许多)行和许多列。等等
不确定是否需要,但是我显示图像的代码是:
for (int i = 0; i < ImageGrid.RowDefinitions.Count; i++)
{
for (int j = 0; j < ImageGrid.ColumnDefinitions.Count; j++)
{
Image img = new Image();
BitmapImage bitmap = new BitmapImage();
using (var fs = new FileStream(path, FileMode.Open)) // open the image
{
bitmap.BeginInit();
bitmap.StreamSource = fs;
bitmap.CacheOption = BitmapCacheOption.OnLoad;
bitmap.EndInit();
}
bitmap.Freeze(); // bitmap isn't properly cleaned up and memory leaks can occur if this isn't here
img.Source = bitmap;
img.Margin = new Thickness(10);
img.Stretch = Stretch.Uniform;
Grid.SetRow(img, i);
Grid.SetColumn(img, j);
ImageGrid.Children.Add(img);
}
}
我对表格的XAML是:
<Grid ShowGridLines="True" Background="DimGray">
<Grid.ColumnDefinitions>
<ColumnDefinition MinWidth="175" Width="0"/>
<ColumnDefinition MinWidth="755" Width="Auto"/>
</Grid.ColumnDefinitions>
<Label Name="lblWinSize" Content="Width, Height"
HorizontalAlignment="Left" VerticalAlignment="Bottom"/>
<TextBox Name="txtnbox" Style="{StaticResource CustomTxtBox}"
TextWrapping="NoWrap" Width="Auto" Height="25" VerticalAlignment="Top"
Margin="10, 20, 10, 0"/>
<Separator Style="{StaticResource VerticalSeparator}"
HorizontalAlignment="Right" Height="Auto" Width="2" Margin="0,10,0,10"/>
<CheckBox Style="{StaticResource CustomCheckBox}"
HorizontalAlignment="Left" Margin="10,50,0,0" VerticalAlignment="Top"/>
<Grid Name="ImageGrid" Grid.Column="1" Margin="10,10,0,10"
ShowGridLines="True" Background="Gray">
<!--this is the grid where the images would go-->
</Grid>
</Grid>
抱歉,该XAML的缩进格式无法正确设置。
行/列在代码的其他地方定义,但是我认为不需要替换它。
同样,如果其他控件更合适,我可以改为。
答案 0 :(得分:1)
您将要使用包装面板。
<WrapPanel Orientation="Horizontal">
<Image Width="50" Height="50" Source="bla.png" />
<Image Width="50" Height="50" Source="bla.png" />
<Image Width="50" Height="50" Source="bla.png" />
<Image Width="50" Height="50" Source="bla.png" />
</WrapPanel>
答案 1 :(得分:1)
在添加新行之前,请使用WrapPanel
使项目的布局填充窗口的宽度,在ScrollViewer
内允许垂直滚动,以使内容不会超出可见区域
<ScrollViewer>
<WrapPanel HorizontalAlignment="Center">
<!-- your items go here -->
</WrapPanel>
</ScrollViewer>
如果图像是动态添加的,则希望将它们添加到视图可以绑定的集合中,而不是直接在代码背后将其添加到视图中...使用ItemsControl并定义自己的项目模板和容器:
<ScrollViewer>
<ItemsControl ItemsSource="{Binding Images}" HorizontalAlignment="Center">
<ItemsControl.ItemTemplate>
<DataTemplate>
<Image Source="{Binding ...}" Height="150" Width="150"/>
</DataTemplate>
</ItemsControl.ItemTemplate>
<ItemsControl.ItemsPanel>
<ItemsPanelTemplate>
<WrapPanel />
</ItemsPanelTemplate>
</ItemsControl.ItemsPanel>
</ItemsControl>
</ScrollViewer>
答案 2 :(得分:0)
c#:
// here set number of images you want to parse
int qtyOfImages = 10;
for (int i = 0; i < qtyOfImages; i++) {
Image img = new Image();
BitmapImage bitmap = new BitmapImage();
using (var fs = new FileStream(path, FileMode.Open)) // open the image
{
bitmap.BeginInit();
bitmap.StreamSource = fs;
bitmap.CacheOption = BitmapCacheOption.OnLoad;
bitmap.EndInit();
}
bitmap.Freeze(); // bitmap isn't properly cleaned up and memory leaks can occur if this isn't here
img.Source = bitmap;
img.Margin = new Thickness(10);
img.Stretch = Stretch.Uniform;
//Grid.SetRow(img, i);
//Grid.SetColumn(img, j);
// set width and height so the images stay at the same size
img.Width = 300;
img.Height = 300;
ImageGrid.Children.Add(img);
}
您的xaml如下:
<Grid ShowGridLines="True" Background="DimGray">
<Grid.ColumnDefinitions>
<ColumnDefinition MinWidth="175" Width="0"/>
<ColumnDefinition MinWidth="755" Width="Auto"/>
</Grid.ColumnDefinitions>
<Label Name="lblWinSize" Content="Width, Height"
HorizontalAlignment="Left" VerticalAlignment="Bottom"/>
<TextBox Name="txtnbox" Style="{StaticResource CustomTxtBox}"
TextWrapping="NoWrap" Width="Auto" Height="25" VerticalAlignment="Top"
Margin="10, 20, 10, 0"/>
<Separator Style="{StaticResource VerticalSeparator}"
HorizontalAlignment="Right" Height="Auto" Width="2" Margin="0,10,0,10"/>
<CheckBox Style="{StaticResource CustomCheckBox}"
HorizontalAlignment="Left" Margin="10,50,0,0" VerticalAlignment="Top"/>
<!--<Grid Name="ImageGrid" Grid.Column="1" Margin="10,10,0,10"
ShowGridLines="True" Background="Gray">
--><!--this is the grid where the images would go--><!--
</Grid>-->
<!-- set size of wrap panel to your window acutal width -->
<WrapPanel Orientation="Horizontal" Name="ImageGrid" Width="{Binding ElementName=Window, Path=ActualWidth}">
</WrapPanel>
</Grid>
不要忘记将Name="Window"
放在您的窗口中,此代码才能正常工作
希望有帮助