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我正在为我的 wpf 应用程序使用 telrik RadGridView。我想将网格绑定到我在 SQL 数据库中的表。我认为这会很简单，但我运气不好。我正在获取 SQL 数据并将其存储在正确填充的 DataSet 中。不过，我在屏幕上看到的唯一内容是没有填写数据的表格列。我的 RadGridView 的 XAML 是：

 <telerik:RadGridView Name="Grid" Grid.Row="2" Grid.ColumnSpan="3"  HorizontalAlignment="Center" VerticalAlignment="Bottom" 
                         AlternateRowBackground="AliceBlue" SelectionMode="Multiple" 
                         AutoGenerateColumns="False" MinHeight="300" MinWidth="800"  CanUserResizeColumns="True" CanUserResizeRows="True"
                         FilteringMode="FilterRow"  IsFilteringAllowed="True"  CanUserSortColumns="True" GridLinesVisibility="Both" 
                         DataLoadMode="Asynchronous"  >
        <telerik:StyleManager.Theme>
            <telerik:Windows8Theme/>
        </telerik:StyleManager.Theme>
        <telerik:RadGridView.Columns>
            <telerik:GridViewDataColumn Width="40" Header="Add" DataMemberBinding="{Binding Add}" IsGroupable="False" IsFilterable="True" >
</telerik:GridViewDataColumn>
            <telerik:GridViewDataColumn Width="75" Header="Qty"  IsGroupable="False" IsFilterable="True">
</telerik:GridViewDataColumn>
            <telerik:GridViewDataColumn Width="75" Header="ID" DataMemberBinding="{Binding ID}" IsGroupable="False" IsFilterable="True"/>
            <telerik:GridViewDataColumn Width="200" Header="Description" DataMemberBinding="{Binding Description}" IsGroupable="False" IsFilterable="True"/>
            <telerik:GridViewDataColumn Width="75" Header="Price" DataMemberBinding="{Binding Price}" IsGroupable="False" IsFilterable="True"/>
            <telerik:GridViewDataColumn Width="75" Header="Min" DataMemberBinding="{Binding Min}" IsGroupable="False" IsFilterable="True"/>
        </telerik:RadGridView.Columns>

    </telerik:RadGridView>

在cs代码中，我正在填充数据集并将datacontext设置为网格

      Grid.DataContext = ds.Tables[0].DefaultView;

我还是 WPF 编程的新手，所以我不确定我是否在这里遗漏了一些小东西，或者我正在尝试做一些根本不可能的事情。感谢你们提供的任何帮助。

编辑：这是加载网格时即时窗口的一些输出。

A first chance exception of type 'System.ArgumentException' occurred in System.Data.dll A first chance exception of type 'System.Reflection.TargetInvocationException' occurred in mscorlib.dll System.Windows.Data Error: 17 : Cannot get 'Item[]' value (type 'Object') from '' (type 'DataRowView'). BindingExpression:Path=[]; DataItem='DataRowView' (HashCode=30892613); target element is 'ValueSetter' (Name=''); target property is 'Value' (type 'Object') TargetInvocationException:'System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.ArgumentException: is neither a DataColumn nor a DataRelation for table Catalog. at System.Data.DataRowView.get_Item(String property) --- End of inner exception stack trace --- at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor) at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments) at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) at System.Reflection.RuntimePropertyInfo.GetValue(Object obj, BindingFlags invokeAttr, Binder binder, Object[] index, CultureInfo culture) at MS.Internal.Data.PropertyPathWorker.GetValue(Object item, Int32 level) at MS.Internal.Data.PropertyPathWorker.RawValue(Int32 k)' A first chance exception of type 'System.ArgumentException' occurred in System.ComponentModel.DataAnnotations.dll A first chance exception of type 'System.ArgumentException' occurred in System.Data.dll A first chance exception of type 'System.Reflection.TargetInvocationException' occurred in mscorlib.dll System.Windows.Data Error: 17 : Cannot get 'Item[]' value (type 'Object') from '' (type 'DataRowView'). BindingExpression:Path=[]; DataItem='DataRowView' (HashCode=37343064); target element is 'ValueSetter' (Name=''); target property is 'Value' (type 'Object') TargetInvocationException:'System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.ArgumentException: is neither a DataColumn nor a DataRelation for table Catalog. at System.Data.DataRowView.get_Item(String property) --- End of inner exception stack trace --- at System.RuntimeMethodHandle.InvokeMethod(Object target, Object[] arguments, Signature sig, Boolean constructor) at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(Object obj, Object[] parameters, Object[] arguments) at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture) at System.Reflection.RuntimePropertyInfo.GetValue(Object obj, BindingFlags invokeAttr, Binder binder, Object[] index, CultureInfo culture) at MS.Internal.Data.PropertyPathWorker.GetValue(Object item, Int32 level) at MS.Internal.Data.PropertyPathWorker.RawValue(Int32 k)' A first chance exception of type 'System.ArgumentException' occurred in System.ComponentModel.DataAnnotations.dll A first chance exception of type 'System.ArgumentException' occurred in System.Data.dll A first chance exception of type 'System.Reflection.TargetInvocationException' occurred in mscorlib.dll System.Windows.Data Error: 17 : Cannot get 'Item[]' value (type 'Object') from '' (type 'DataRowView'). BindingExpression:Path=[]; DataItem='DataRowView' (HashCode=17870819); target element is 'ValueSetter' (Name=''); target property is 'Value' (type 'Object') TargetInvocationException:'System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.ArgumentException: is neither a DataColumn nor a DataRelation for table Catalog. at System.Data.DataRowView.get_Item(String property) --- End of inner exception stack trace ---

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3 回答 3

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在与 Telerik 客户支持就此事进行了一番交谈后，问题是它
DataLoadMode = Asynchronous
不起作用并且必须被取出。此外，由于我使用的是行虚拟化，因此我需要在网格上设置一个高度。

于 2013-03-11T19:58:52.417 回答
0

代替
Grid.DataContext = ds.Tables[0].DefaultView;

做它喜欢
Grid.ItemsSource = ds.Tables[0].DefaultView;

我的意思是它应该是ItemsSource网格的属性，而不是DataContext. 我不确定这一点，但我认为是的。

于 2013-02-10T06:25:08.457 回答
-1

为我工作：

RadGridView.ValidatesOnDataErrors = "InEditMode"

另请参阅http://www.telerik.com/forums/argumentexception-when-using-icustomtypedescriptor

于 2015-03-18T15:28:41.373 回答