我正在寻找能够在同一列中显示不同控件（目前为文本框和组合框）的 WinForms 或 WPF 网格。它还必须具有树列表/树视图功能，以便行（节点）之间的层次结构可见。我需要能够在运行时将控件添加到单元格并以编程方式更改行高和列宽。
我一直在寻找一段时间，但到目前为止没有运气。有什么建议么？非常感谢您的帮助。
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272 次
3 回答
3
这个答案的结果。
我会使用标准的WPF DataGrid，现在不需要花钱，你可以选择一个模板列，然后在里面做一些数据绑定，下面的例子有一个非常简单的类，我绑定到网格上.
public class ListItemType
{
public int Type { get; set; }
public string Text { get; set; }
}
这个类显然可以是任何东西，但在示例中，我将类型设置为 1 或 2，绑定列表中类型为 1 的任何对象都会被赋予一个按钮来表示它，并且任何 Type=2 的对象都会被赋予一个CheckBox 来表示它。
数据网格的 XAML 如下所示。（缩进 ++）
<DataGrid ItemsSource="{Binding Items}" AutoGenerateColumns="False" Height="200" HorizontalAlignment="Left" Margin="10,10,0,0" Name="dataGrid1" VerticalAlignment="Top" Width="200" >
<DataGrid.Columns>
<!-- The template coloumn -->
<DataGridTemplateColumn>
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<!-- Each cell is put in to a content presenter so I can change it's content -->
<ContentPresenter>
<ContentPresenter.Content>
<Binding Path="Type">
<Binding.Converter>
<local:SwitchConverter>
<local:SwitchConverterCase When="1">
<Button Content="{Binding Text}"></Button>
</local:SwitchConverterCase>
<local:SwitchConverterCase When="2">
<CheckBox Content="{Binding Text}" />
</local:SwitchConverterCase>
</local:SwitchConverter>
</Binding.Converter>
</Binding>
</ContentPresenter.Content>
</ContentPresenter>
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>
</DataGrid.Columns>
</DataGrid>
上面使用的开关转换器只是一个通用转换器，它稍微简化了 XAML 代码，你可以使用任何你想要的转换器，但这里是我使用的那个的代码。
/// <summary>
/// A converter that accepts <see cref="SwitchConverterCase"/>s and converts them to the
/// Then property of the case.
/// </summary>
[ContentProperty("Cases")]
public class SwitchConverter : IValueConverter
{
// Converter instances.
List<SwitchConverterCase> _cases;
#region Public Properties.
/// <summary>
/// Gets or sets an array of <see cref="SwitchConverterCase"/>s that this converter can use to produde values from.
/// </summary>
public List<SwitchConverterCase> Cases { get { return _cases; } set { _cases = value; } }
#endregion
#region Construction.
/// <summary>
/// Initializes a new instance of the <see cref="SwitchConverter"/> class.
/// </summary>
public SwitchConverter()
{
// Create the cases array.
_cases = new List<SwitchConverterCase>();
}
#endregion
/// <summary>
/// Converts a value.
/// </summary>
/// <param name="value">The value produced by the binding source.</param>
/// <param name="targetType">The type of the binding target property.</param>
/// <param name="parameter">The converter parameter to use.</param>
/// <param name="culture">The culture to use in the converter.</param>
/// <returns>
/// A converted value. If the method returns null, the valid null value is used.
/// </returns>
public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
// This will be the results of the operation.
object results = null;
// I'm only willing to convert SwitchConverterCases in this converter and no nulls!
if (value == null) throw new ArgumentNullException("value");
// I need to find out if the case that matches this value actually exists in this converters cases collection.
if (_cases != null && _cases.Count > 0)
for (int i = 0; i < _cases.Count; i++)
{
// Get a reference to this case.
SwitchConverterCase targetCase = _cases[i];
// Check to see if the value is the cases When parameter.
if (value == targetCase || value.ToString().ToUpper() == targetCase.When.ToString().ToUpper())
{
// We've got what we want, the results can now be set to the Then property
// of the case we're on.
results = targetCase.Then;
// All done, get out of the loop.
break;
}
}
// return the results.
return results;
}
/// <summary>
/// Converts a value.
/// </summary>
/// <param name="value">The value that is produced by the binding target.</param>
/// <param name="targetType">The type to convert to.</param>
/// <param name="parameter">The converter parameter to use.</param>
/// <param name="culture">The culture to use in the converter.</param>
/// <returns>
/// A converted value. If the method returns null, the valid null value is used.
/// </returns>
public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
{
throw new NotImplementedException();
}
}
/// <summary>
/// Represents a case for a switch converter.
/// </summary>
[ContentProperty("Then")]
public class SwitchConverterCase
{
// case instances.
string _when;
object _then;
#region Public Properties.
/// <summary>
/// Gets or sets the condition of the case.
/// </summary>
public string When { get { return _when; } set { _when = value; } }
/// <summary>
/// Gets or sets the results of this case when run through a <see cref="SwitchConverter"/>
/// </summary>
public object Then { get { return _then; } set { _then = value; } }
#endregion
#region Construction.
/// <summary>
/// Switches the converter.
/// </summary>
public SwitchConverterCase()
{
}
/// <summary>
/// Initializes a new instance of the <see cref="SwitchConverterCase"/> class.
/// </summary>
/// <param name="when">The condition of the case.</param>
/// <param name="then">The results of this case when run through a <see cref="SwitchConverter"/>.</param>
public SwitchConverterCase(string when, object then)
{
// Hook up the instances.
this._then = then;
this._when = when;
}
#endregion
/// <summary>
/// Returns a <see cref="System.String"/> that represents this instance.
/// </summary>
/// <returns>
/// A <see cref="System.String"/> that represents this instance.
/// </returns>
public override string ToString()
{
return string.Format("When={0}; Then={1}", When.ToString(), Then.ToString());
}
}
最后，对于您需要的树视图组件.. 实际上，您甚至可以在每个单元格内放置另一个数据网格，以实现您需要的任何深度级别。
于 2012-06-15T14:20:39.357 回答
1
我想您会发现带有一些巧妙模板的标准 WPF TreeView 可以解决问题
于 2012-06-15T14:32:14.613 回答
0
如果为这样的组件付费是一种选择，我强烈推荐 Telerik 组件。他们有很多控件，技术支持很棒。
您可以查看一些示例，了解他们的产品是否适合您的需求：
于 2012-06-15T13:54:52.730 回答