C# DataGrid弹出图像
我将图片路径保存到datagrid行,并希望在鼠标悬停在datagrid行上时显示弹出图像 像这样: 这是我的xaml代码:C# DataGrid弹出图像,c#,wpf,image,datagrid,C#,Wpf,Image,Datagrid,我将图片路径保存到datagrid行,并希望在鼠标悬停在datagrid行上时显示弹出图像 像这样: 这是我的xaml代码: <DataGrid Name="DG_selected_pictures" AutoGenerateColumns="False" Margin="8,74,8,-113.8" IsReadOnly="True"> <DataGrid.Columns >
<DataGrid Name="DG_selected_pictures" AutoGenerateColumns="False" Margin="8,74,8,-113.8" IsReadOnly="True">
<DataGrid.Columns >
<DataGridTextColumn Binding="{Binding Path=Picture}" MinWidth="485" />
</DataGrid.Columns>
</DataGrid>
c#代码背后:
private void BT\u选择图片\u单击(对象发送者,路由目标)
{
var picture_list=新的ObservableCollection();
Microsoft.Win32.OpenFileDialog openfile=新建Microsoft.Win32.OpenFileDialog();
//string filter=“Picture files”(*.jpg)|*.jpg |所有文件(*.*)|*.”;
openfile.Filter=“图片文件(*.jpg)|*.jpg|所有文件(*.*)|*.”;
openfile.Multiselect=true;
if(openfile.ShowDialog()==true)
{
int index=openfile.FileName.LastIndexOf(“\\”)+1;
int lastindex=openfile.FileName.Length-1;
字符串folderPath=openfile.FileName;
folderPath=folderPath.Remove(index,folderPath.Length-index);
TB_selected_files_folder.Text=folderPath;
}
foreach(openfile.filename中的字符串图片)
{
i++;
picture_list.Add(新数据对象(){picture=picture});
所选图片。添加(图片);
}
LB_selected_pictures_count.Content=Convert.ToString(i)+“db”;
this.DG_selected_pictures.ItemsSource=picture_list;//这是数据网格
}
问题是我不知道怎么做。工具提示还是弹出窗口?语法是什么
感谢并抱歉我的英语不好。当光标位于列单元格上时,DataGridCell的工具提示将可见:
<DataGridTextColumn Binding="{Binding Path=Picture}" MinWidth="485">
<DataGridTextColumn.CellStyle>
<Style TargetType="DataGridCell">
<Setter Property="ToolTip">
<Setter.Value>
<Image Source="{Binding Path=Picture}"/>
</Setter.Value>
</Setter>
</Style>
</DataGridTextColumn.CellStyle>
</DataGridTextColumn>
您可以使用
IsMouseOver
属性来确定鼠标是否在对象上,使用MultiDataTrigger
来评估多个条件
<Style TargetType="Image">
<Style.Triggers>
<MultiDataTrigger>
<MultiDataTrigger.Conditions>
<Condition Binding="{Binding IsMouseOver, RelativeSource={RelativeSource Self}}" Value="True" />
<Condition Binding="{Binding Picture, Converter={StaticResource IsImageNullConverter}}" Value="False" />
</MultiDataTrigger.Conditions>
</MultiDataTrigger>
</Style.Triggers>
</Style>
<Style TargetType="Image">
<Style.Triggers>
<MultiDataTrigger>
<MultiDataTrigger.Conditions>
<Condition Binding="{Binding IsMouseOver, RelativeSource={RelativeSource Self}}" Value="True" />
<Condition Binding="{Binding Picture, Converter={StaticResource IsImageNullConverter}}" Value="False" />
</MultiDataTrigger.Conditions>
</MultiDataTrigger>
</Style.Triggers>
</Style>