我已经在wpf中编写了一个代码,通过接受这两个数字来显示指数 因为我已经创建了一个转换器功能和代码.. 但是在写完这段代码之后就显示出错误了 “Microsoft Visual Studio遇到问题,它必须关闭”..然后当我们点击不发送它关闭Vs2010。 可能是什么问题?代码附在这里......
namespace WpfTutSamples
{
public partial class Exponential : Window
{
public Exponential()
{
InitializeComponent();
}
public double GetValue(double number, double exponent)
{
double value = Math.Pow(number, exponent);
return value;
}
}
}
----- XmlCode
<Window x:Class="WpfTutSamples.Exponential"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:local="clr-namespace:WpfTutSamples"
xmlns:sys="clr-namespace:System;assembly=mscorlib"
Title="Exponential" Height="300" Width="300">
<Window.Resources>
<ObjectDataProvider x:Key="expCalculator" MethodName="GetValue" ObjectType="{x:Type local:Exponential}">
<ObjectDataProvider.MethodParameters>
<sys:Double>4</sys:Double>
<sys:Double>2</sys:Double>
</ObjectDataProvider.MethodParameters>
</ObjectDataProvider>
</Window.Resources>
<Grid>
<Label Content="Number" HorizontalAlignment="Left" VerticalAlignment="Top" Margin="2"> </Label>
<TextBox HorizontalAlignment="Left" x:Name="txtNumber" Height="30" VerticalAlignment="Top" Margin="70,1" Width="60"
Text="{Binding Source={StaticResource expCalculator}, Path=MethodParametes[0], Mode=OneWayToSource, BindsDirectlyToSource=True}"></TextBox>
<Label Content="Number" HorizontalAlignment="Left" VerticalAlignment="Top" Margin="2,40"> </Label>
<TextBox HorizontalAlignment="Left" x:Name="txtpower" Height="30" VerticalAlignment="Top" Margin="70,40" Width="60"
Text="{Binding Source={StaticResource expCalculator}, Path=MethodParametes[1], Mode=OneWayToSource, BindsDirectlyToSource=True}"></TextBox>
<Label Content="Result" HorizontalAlignment="Left" VerticalAlignment="Top" Margin="2,80"> </Label>
<TextBox HorizontalAlignment="Left" x:Name="txtResult" Height="30" VerticalAlignment="Top" Margin="70,80" Width="60"
Text="{Binding Source={StaticResource expCalculator}}"></TextBox>
</Grid>
</Window>
答案 0 :(得分:1)
<强>答案强>
也许是因为stackoverflow?您从Exponential
类Exponential
引用ObjectDataProvider
class'方法,该方法创建Exponential
类实例,实例化ObjectDataProvider
,依此类推。
<强>解释强>
ObjectDataProvider
绑定到方法需要实例化类,包含调用它的方法。这就是你无休止复发的原因。
解决方法强>
将方法放在单独的类中,并在Exponential.xaml中以ObjectDataProvider
引用