如何在索引绑定路径中使用自定义枚举值 [英] How to use custom enum values in indexed binding path

问题描述

大家好！



WPF对我来说是新手，我暂时停滞不前。

我有一个枚举：

Hi All!

WPF is new to me, and I am stalled at a point.
I have an enum:

[Flags]
public enum Toners
{
        black = 1,
        cyan = 2,
        magenta = 4,
        yellow = 8
}

和一个类，它具有基于此枚举的索引器属性：

and a class, that has an indexer property based on this enum:

public string this[Toners toner]
{
  get
  {
    return this.TonerLevels.ContainsKey(toner) ? this.TonerLevels[toner].ToString() : String.Empty;
  }
}

太棒了，但是当绑定一个文本列时我得不到任何结果：

Great, but I can''t get any result when binding a textcolumn to it:

<DataGridTextColumn Header="Black" Binding="{Binding [Toners.blank]}" Width="100" CellStyle="{StaticResource CenterCellStyle}"/>

同样的sni当索引的类型为int时，ppet正在工作，我将其引用为 {Binding [1]}



请指导我，如果可能的话，如何让它以enum方式工作。



[更新]

我也试过导入包含枚举的命名空间直接进入xaml，并使用。引用枚举值。和：符号，但仍然没有结果。



最糟糕的是，没有错误信息:(，只有空的结果。我想它会布里格我更接近，如果我能以某种方式增加xaml编译的冗长，但我不知道如何。



谢谢。

The same snippet is working when the index is of type int, and I am referencing it as {Binding [1]}

Please guide me, how to make it work in the enum way if possible.

[Update]
I have also tried importing the namespace containing the enum directly into the xaml, and referencing the enum value both with "." and ":" notation, but still no result.

The worst is, that there is no error message either :(, only empty result. I suppose it would brig me closer, if I could increase somehow the verbosity of the xaml compilation, but I have no idea how.

Thank you.

推荐答案

试试这个，



Binding ={Binding [（int）Toners.blank]}



希望这对你有用。

try this,

Binding="{Binding [(int)Toners.blank]}"

hopes this work for you.

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