VB WPF到C# WPF
VB WPF到C# WPF
提问于 2016-01-17 16:47:17
我正在尝试从使用VB到C# WPF，到目前为止我尝试的是使用一个在线转换器，因为我有大量的代码。问题是，我遇到了一些麻烦，理解了一些错误，并且是C#的初学者，我有点迷路了。
下面的代码是我目前与标准VB一起使用的代码，非常好地工作，以及c#转换器将其转换成的副本。(注:我在VB和C#中都添加了必应地图WPF引用)
Private Sub Aberdeen() Handles BTNCounty.Click
If TXTCounty.Text = "Aberdeen" Then
Dim CountyLocation(2) As Microsoft.Maps.MapControl.WPF.Location
CountyLocation(0) = New Microsoft.Maps.MapControl.WPF.Location(57.143652, -2.1056584)
CountyLocation(1) = New Microsoft.Maps.MapControl.WPF.Location(57.143652, -2.1056584)
CountyLocation(2) = New Microsoft.Maps.MapControl.WPF.Location(57.124838, -2.0991633)
Dim names = New String() {"Aberdeen Central", "Aberdeen Lochnagar", "Aberdeen Kincorth"}
For index = 0 To CountyLocation.Length - 1
Dim Pin = New Microsoft.Maps.MapControl.WPF.Pushpin()
Dim CoordinateTip = New ToolTip()
CoordinateTip.Content = names(index)
Pin.Location = CountyLocation(index)
Pin.ToolTip = CoordinateTip
BingMap.Children.Add(Pin)
Next
End If
End Sub下面是将代码转换为c#的示例
private void Aberdeen()
{
if (TXTCounty.Text == "Aberdeen") {
Microsoft.Maps.MapControl.WPF.Location[] CountyLocation = new Microsoft.Maps.MapControl.WPF.Location[3];
CountyLocation(0) = new Microsoft.Maps.MapControl.WPF.Location(57.143652, -2.1056584);
CountyLocation(1) = new Microsoft.Maps.MapControl.WPF.Location(57.143652, -2.1056584);
CountyLocation(2) = new Microsoft.Maps.MapControl.WPF.Location(57.124838, -2.0991633);
dynamic names = new string[] {
"Aberdeen Central",
"Aberdeen Lochnagar",
"\tAberdeen Kincorth"
};
for (index = 0; index <= CountyLocation.Length - 1; index++) {
dynamic Pin = new Microsoft.Maps.MapControl.WPF.Pushpin();
dynamic CoordinateTip = new ToolTip();
CoordinateTip.Content = names(index);
Pin.Location = CountyLocation(index);
Pin.ToolTip = CoordinateTip;
BingMap.Children.Add(Pin);
}
}
}我收到了三个错误，我想知道你能不能告诉我它们的意思以及如何解决这个问题？
- CountyLocation是一个变量，但使用起来像一种方法？
2名称索引在当前上下文中不存在？
3 System.Windows.FrameworkElement.ToolTip是一个属性，但它被用作类型吗？
对我来说，任何帮助都将是非常感谢的，因为这是非常外国的领土。
回答 1
Stack Overflow用户
回答已采纳
发布于 2016-01-17 16:55:33
请在线查看答案。主要问题是转换器已经将所有类型推断调用(Dim variable = ...)转换为dynamics，这是不正确的。您应该使用var进行类型推断。
private void Aberdeen()
{
if (TXTCounty.Text == "Aberdeen") {
Microsoft.Maps.MapControl.WPF.Location[] CountyLocation = new Microsoft.Maps.MapControl.WPF.Location[3];
// Error 1: Setting array variables is done using square brackets, otherwise it's considered a method invocation
CountyLocation[0] = new Microsoft.Maps.MapControl.WPF.Location(57.143652, -2.1056584);
CountyLocation[1] = new Microsoft.Maps.MapControl.WPF.Location(57.143652, -2.1056584);
CountyLocation[2] = new Microsoft.Maps.MapControl.WPF.Location(57.124838, -2.0991633);
// extra: you don't need dynamic here, just var will do
var names = new string[] {
"Aberdeen Central",
"Aberdeen Lochnagar",
"\tAberdeen Kincorth"
};
// Error 2: you need to declare the index variable (added var)
for (var index = 0; index <= CountyLocation.Length - 1; index++) {
// Error 3: don't need dynamic here
var Pin = new Microsoft.Maps.MapControl.WPF.Pushpin();
// don't need dynamic here
var CoordinateTip = new ToolTip();
// Same as error 1: Array access is done with square brackets
CoordinateTip.Content = names[index];
// Same as error 1: Array access is done with square brackets
Pin.Location = CountyLocation[index];
Pin.ToolTip = CoordinateTip;
BingMap.Children.Add(Pin);
}
}
}页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/34840836
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