Question

我试图在其他数据旁边的DataGrid-Column中显示图像。我的模型看起来像这样：

public class Person 
{
    public string Name { get; set; }
    public string Address { get; set; }
    public Bitmap Image { get; set; }
}

ViewModel：

public ObservableCollection<Person> Persons
    {
        get
        {
           return this.persons;
        }

        set
        {
            this.persons = value;
        }
    }

我的DataGrid是这样的：

<DataGrid Name="Persons"
              Grid.Row="1"
              Grid.Column="0"
              Margin="10"
              AutoGenerateColumns="False"
              IsReadOnly="True"
              ItemsSource="{Binding Path=Persons}">
        <DataGrid.Columns>
            <DataGridTemplateColumn Width="80">
                <DataGridTemplateColumn.CellTemplate>
                    <DataTemplate>
                        <Image Source="{Binding}" />
                    </DataTemplate>
                </DataGridTemplateColumn.CellTemplate>
            </DataGridTemplateColumn>
            <DataGridTextColumn Width="120"
                                Binding="{Binding Path=Name}"
                                Header="Name" />
            <DataGridTextColumn Width="120"
                                Binding="{Binding Path=Address}"
                                Header="Address" />
        </DataGrid.Columns>
    </DataGrid>

名称和地址显示正确，但图片为空... 你知道我做错了吗？

提前致谢并度过愉快的一天

Answer 1

如果您的Image属于System.Drawing.Bitmap，则应将其更改为System.Windows.Media.Imaging.BitmapImage，然后同时更改Image.Source绑定，此绑定此时绑定到整个Person对象为Image属性

<Image Source="{Binding Image}" />

Answer 2

尝试使用该代码显示图片：

 <DataGridTemplateColumn Width="80">
        <DataGridTemplateColumn.CellTemplate>
            <DataTemplate>
                <Image Source="{Binding Image}" />
            </DataTemplate>
       </DataGridTemplateColumn.CellTemplate>
     </DataGridTemplateColumn>

Answer 3

在项目中添加图像文件夹，并将图像添加到同一文件夹中。使用以下代码访问

<Columns> 
<ItemTemplate >
<asp:ImageButton ID="ImageButton1" runat ="server" CommandName="Preview" ImageUrl="~/images/MSWord_Icon.jpg"/>
</ItemTemplate>
</Columns>

Answer 4

您需要为图像设置一些高度和宽度，如

<Image Source="{Binding}" Height="200" Width="200"/>

Answer 5

xmlns:converter="clr-namespace:ProjectName.Converters"
<Window.Resource>
 <converter:BindableConverter x:Key="bindableConverter"/>
</Window.Resource>    
<DataGridTemplateColumn Header="HeaderName">
                                <DataGridTemplateColumn.CellTemplate>
                                    <DataTemplate>
                                        <Image x:Name="BindImg" Height="35" Width="35" Source="{Binding IsBindable,Converter={StaticResource bindableConverter}}" VerticalAlignment="Center" HorizontalAlignment="Center"/>
                                    </DataTemplate>
                                </DataGridTemplateColumn.CellTemplate>                             
                            </DataGridTemplateColumn> 


 public class BindableConverter : IValueConverter
    {
        public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
        {
            string imageSource = string.Empty;
            bool isBinded;
            if (value == null || string.IsNullOrWhiteSpace(value.ToString()))
            {
                imageSource = "../../Resource/Images/unbinded.jpg";
            }
            if (Boolean.TryParse(value.ToString(), out isBinded))
            {
                if (isBinded)
                {
                    imageSource = "../../Resource/Images/binded.jpg";
                }
                else
                {
                    imageSource = "../../Resource/Images/unbinded.jpg";
                }
            }
            return imageSource;
        }

        public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
        {
            throw new NotImplementedException();
        }
    }

在DataGrid-Column中显示图像

5 个答案: