Wpf名称“interactiveGrid”在当前上下文中不存在

Question

我对wpf有一些疑问。 有一个我的课

using System; 
using System.Collections.Generic; 
using System.Windows.Controls; 

namespace RatesScenarios.Controls 
{ 
    class InteractiveGrid : Grid, IDisposable 
    { 
    //... 
    } 
} 

当我把它添加到XAML：

<Window x:Class="RatesScenarios.MainWindow" 
     xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
     xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
     xmlns:controls="clr-namespace:RatesScenarios.Controls" 
     Title="RatesScenarios" MinHeight="400" Width="700" Background="SteelBlue" SizeToContent="Manual"> 

及以下

<Grid Background="White"> 
<Border BorderBrush="#CCCCCC" BorderThickness="1" Margin="7,10,7,10" VerticalAlignment="Top" HorizontalAlignment="Center"> 
<controls:InteractiveGrid Name="interactiveGrid" ShowGridLines="True" VerticalAlignment="Top" HorizontalAlignment="Center"> 
</controls:InteractiveGrid> 
</Border> 
</Grid> 

当构建项目节选错误：名称 “interactiveGrid” 不存在目前的情况下

namespace RatesScenarios 
{ 
public partial class MainWindow : Window 
{ 
     private void Refresh() 
     { 
     interactiveGrid.Children.Clear(); 
     } 
    } 
} 

为什么发生？

Answer 1

如果别人得到这个错误，没有任何指示，为什么它的发生关闭和打开.XAML文件暗示如下：

Error 2 Because 'MS.Internal.Design.Metadata.ReflectionTypeNode' is 
implemented in the same assembly, you must set the x:Name 
attribute rather than the 
MS.Internal.Design.Metadata.ReflectionPropertyNode attribute. 

也有类似的问题SO：
Calling child user-control's function

Answer 2

也许这是一个愚蠢的问题，但你有没有声明InteractiveGrid的公共构造函数？ 你在MainWindow构造函数中调用InitializeComponent（）方法吗？

Answer 3

有现有的代码，不建

using System; 
using System.Collections.Generic; 
using System.Windows.Controls; 

namespace RatesScenarios.Controls 
{ 
    public class InteractiveGrid : Grid, IDisposable 
    { 
    #region IDisposable Members 
     public void Dispose() 
     { 

     } 
    #endregion 

     private DataCell selectedCell; 

     public DataCell SelectedCell 
     { 
      get { return selectedCell; } 
     } 

     public InteractiveGrid() 
     { 

     } 

     public void Build(List<string> columnsHeaders, List<string> rowsHeaders, List<DataCell> dataCells) 
     { 

     } 

     public void SelectCell(DataCell dataCell) 
     { 
      selectedCell = dataCell; 
     } 
    } 
} 

和

public partial class MainWindow : Window 
{ 
    public MainWindow() 
    { 
     InitializeComponent(); 
    } 
//.. 
}