我有一个项目，我可以点击设置并打开设置表单，如果我根据彩色图像检查不同的单选按钮。图像将更改为显示特定颜色的另一个表单。我不断收到错误单击更改颜色按钮程序崩溃。我只是WPF的初学者，有谁知道我如何通过检查单选按钮并单击按钮来解决这个问题，其他表单的图像源也会相应更改？
设置表单
private void btnchgcolour_Click(object sender, RoutedEventArgs e)
{
if(rdbred.IsChecked == true)
{
birdcolor = "redbird";
}
else if(rdbgreen.IsChecked == true)
{
birdcolor = "greenbird";
}
else if(rdbblack.IsChecked == true)
{
birdcolor = "blackbird";
}
this.DialogResult = true;
}
private void btnback_Click(object sender, RoutedEventArgs e)
{
MainWindow m1 = new MainWindow();
m1.Show();
this.Close();
}
}
主页 public partial class MainWindow：Window { bool isPaused = false; // bool isResume = false;
private int time = 120;
private DispatcherTimer Timer;
private DispatcherTimer countdown;
private int _angle;
public int points {get; set;}
bool boolClicked = false;
// public string selectBirdcolour { get; set; }
public MainWindow()
{
InitializeComponent();
}
void Timer_tick(object sender, EventArgs e)
{
Dispatcher.Invoke(DispatcherPriority.Background, (Action)delegate
{
// points +=1;
lblscoreamount.Content = points.ToString();
_angle += 90;
Birdie.RenderTransformOrigin = new Point(0.5, 0.5);
Birdie.RenderTransform = new RotateTransform(-_angle);
Birdie1.RenderTransformOrigin = new Point(0.5, 0.5);
Birdie1.RenderTransform = new RotateTransform(-_angle);
Birdie2.RenderTransformOrigin = new Point(0.5, 0.5);
Birdie2.RenderTransform = new RotateTransform(-_angle);
Birdie3.RenderTransformOrigin = new Point(0.5, 0.5);
Birdie3.RenderTransform = new RotateTransform(-_angle);
Birdie4.RenderTransformOrigin = new Point(0.5, 0.5);
Birdie4.RenderTransform = new RotateTransform(-_angle);
boolClicked = false;
if (_angle == 360)
{
_angle = 0;
}
});
Random r = new Random();
int rand1 = r.Next(140, 480);
int rand2 = r.Next(140, 620);
Canvas.SetTop(Birdie, rand2);
Canvas.SetLeft(Birdie, rand1 - 50);
Canvas.SetTop(Birdie1, rand2);
Canvas.SetLeft(Birdie1, rand1+20);
Canvas.SetTop(Birdie2, rand2);
Canvas.SetLeft(Birdie2, rand1 + 100);
Canvas.SetTop(Birdie3, rand2);
Canvas.SetLeft(Birdie3, rand1 - 110);
Canvas.SetTop(Birdie4, rand2);
Canvas.SetLeft(Birdie4, rand1 + 160);
if (time > 0)
{
return;
}
else if(time == 0)
{
// time--;
results sp1 = new results();
this.Close();
sp1.lblscoreresult.Content = lblscoreamount.Content;
sp1.WindowStartupLocation = System.Windows.WindowStartupLocation.CenterScreen;
sp1.Show();
Timer.Stop();
}
else if (time <= 5 )
{
// Canvas.SetTop(Birdie, rand2);
// Canvas.SetLeft(Birdie, rand1 - 50);
// Canvas.SetTop(Birdie1, rand2);
// Canvas.SetLeft(Birdie1, rand1);
// Canvas.SetTop(Birdie2, rand2);
// Canvas.SetLeft(Birdie2, rand1 + 100);
// Canvas.SetTop(Birdie3, rand2);
// Canvas.SetLeft(Birdie3, rand1 - 100);
// Canvas.SetTop(Birdie4, rand2);
// Canvas.SetLeft(Birdie4, rand1 + 150);
// boolClicked = false;
// MessageBox.Show("Hi");
}
else
{
Timer.Stop();
}
//if(isPaused)
//{
// Timer.Stop();
//}
}
private void Button_Click_Paused(object sender, RoutedEventArgs e)
{
if(isPaused != true)
{
isPaused = true;
Timer.Stop();
countdown.Stop();
}
else if(isPaused == true)
{
isPaused = false;
Timer.Start();
countdown.Start();
}
}
private void Button_Click_1(object sender, RoutedEventArgs e)
{
}
private void Window_Loaded(object sender, RoutedEventArgs e)
{
Timer = new DispatcherTimer();
Timer.Interval = new TimeSpan(0, 0, 5); //edit this part for the time interval
Timer.Tick += Timer_tick;
Timer.Start();
countdown = new DispatcherTimer();
countdown.Interval = new TimeSpan(0, 0, 1);
countdown.Tick += Countdown_tick;
countdown.Start();
_angle=0;
isPaused = false;
}
public void selectBirdcolour()
{
Settings set=new Settings();
if(set.birdcolor == "redbird")
{
Birdie1.Source = new BitmapImage(new Uri("/inlandbirdred.png"));
}
}
void Countdown_tick(object sender, EventArgs e)
{
if (time > 0)
{
time--;
tbTime.Text = "00:" + (time / 60).ToString("d2") + ":" + (time % 60).ToString("d2");
}
else
{
Timer.Stop();
}
}
private void btnup_Click(object sender, RoutedEventArgs e)
{
if (_angle == 180)
{
if (boolClicked == false)
{
boolClicked = true;
points += 1;
//boolClicked = false;
}
}
else
{
return;
}
}
private void btndown_Click(object sender, RoutedEventArgs e)
{
if (_angle == 0)
{
if (boolClicked == false)
{
boolClicked = true;
points += 1;
//boolClicked = false;
}
}
else
{
return;
}
}
private void btnleft_Click(object sender, RoutedEventArgs e)
{
if (_angle == 270)
{
if (boolClicked == false)
{
boolClicked = true;
points += 1;
//boolClicked = false;
}
}
else
{
return;
}
}
private void btnright_Click(object sender, RoutedEventArgs e)
{
if (_angle == 90)
{
if (boolClicked == false)
{
boolClicked = true;
points += 1;
//boolClicked = false;
}
}
else
{
return;
}
}
private void btnsettings_Click(object sender, RoutedEventArgs e)
{
Settings setting = new Settings();
setting.Show();
this.Close();
}
}
答案 0 :(得分：1)
我相信“设置”是您的设置形式？
您应该在主窗口中执行此操作：
public string BirdColor = "";
private void btnsettings_Click(object sender, RoutedEventArgs e)
{
Settings setting = new Settings();
setting.Show(this);
}
现在以您的设置形式
private void btnchgcolour_Click(object sender, RoutedEventArgs e)
{
MainWindow m1 = (MainWindow)this.Parent;
//if does not work use this.Owner;
if(rdbred.IsChecked == true)
{
m1.BirdColor = "redbird";
}
else if(rdbgreen.IsChecked == true)
{
m1.BirdColor = "greenbird";
}
else if(rdbblack.IsChecked == true)
{
m1.BirdColor = "blackbird";
}
}
private void btnback_Click(object sender, RoutedEventArgs e)
{
MainWindow m1 = (MainWindow)this.Parent;
//if does not work use this.Owner;
m1.Show();
this.Close();
}
然后BirdColor字符串应包含所选设置。
public void selectBirdcolour()
{
if(BirdColor == "redbird")
{
Birdie1.Source = new BitmapImage(new Uri("/inlandbirdred.png"));
}
}