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我的XNA遊戲有這個「流氓」System.InvalidOperationException只會發生有時似乎是隨機觸發或至少是我的控制輸入明智的觸發。在按下開始並加載第一個菜單屏幕後,(如果有幫助,我使用GameStateManagement樣本作爲遊戲基礎)遊戲有時候但並不總是在「foreach」的「in」部分拋出System.InvalidOperationException在屏幕GameScreen屏幕)」爲方法的完整代碼:Rogue異常,System.InvalidOperationException異常,XNA
/// <summary>
/// Tells each screen to draw itself.
/// </summary>
public override void Draw(GameTime gameTime)
{
foreach (GameScreen screen in screens) //exception thrown at the "in" part
{
if (screen.ScreenState == ScreenState.Hidden)
continue;
screen.Draw(gameTime);
}
}
我以什麼觸發此異常,因爲我沒有做任何事情不同,當它拋出異常老實無能,當它不。我不能完全肯定這是否會幫助你,但,這是異常的詳細信息
at System.Collections.Generic.List`1.Enumerator.MoveNext()
at GameStateManagement.ScreenManager.Draw(GameTime gameTime)
at Microsoft.Xna.Framework.Game.Draw(GameTime gameTime)
at GameStateManagement.GameStateManagementGame.Draw(GameTime gameTime)
at Microsoft.Xna.Framework.Game.DrawFrame()
at Microsoft.Xna.Framework.Game.Tick()
at Microsoft.Xna.Framework.Game.HostIdle(Object sender, EventArgs e)
at Microsoft.Xna.Framework.GameHost.OnIdle()
at Microsoft.Xna.Framework.XboxGameHost.RunOneFrame()
at Microsoft.Xna.Framework.XboxGameHost.Run()
at Microsoft.Xna.Framework.Game.RunGame(Boolean useBlockingRun)
at Microsoft.Xna.Framework.Game.Run()
at GameStateManagement.Program.Main()
} System.Exception {System.InvalidOperationException}
,這是調用堆棧:
> GameStateManagementSample.exe!GameStateManagement.ScreenManager.Draw(Microsoft.Xna.Framework.GameTime gameTime) Line 338 + 0x33 bytes C#
Microsoft.Xna.Framework.Game.dll!Microsoft.Xna.Framework.Game.Draw(Microsoft.Xna.Framework.GameTime gameTime) + 0x4d bytes
GameStateManagementSample.exe!GameStateManagement.GameStateManagementGame.Draw(Microsoft.Xna.Framework.GameTime gameTime) Line 89 + 0x7 bytes C#
Microsoft.Xna.Framework.Game.dll!Microsoft.Xna.Framework.Game.DrawFrame() + 0x6a bytes
Microsoft.Xna.Framework.Game.dll!Microsoft.Xna.Framework.Game.Tick() + 0x2a9 bytes
Microsoft.Xna.Framework.Game.dll!Microsoft.Xna.Framework.Game.HostIdle(object sender, System.EventArgs e) + 0x6 bytes
Microsoft.Xna.Framework.Game.dll!Microsoft.Xna.Framework.GameHost.OnIdle() + 0x19 bytes
Microsoft.Xna.Framework.Game.dll!Microsoft.Xna.Framework.XboxGameHost.RunOneFrame() + 0xc bytes
Microsoft.Xna.Framework.Game.dll!Microsoft.Xna.Framework.XboxGameHost.Run() + 0x1b bytes
Microsoft.Xna.Framework.Game.dll!Microsoft.Xna.Framework.Game.RunGame(bool useBlockingRun) + 0x9c bytes
Microsoft.Xna.Framework.Game.dll!Microsoft.Xna.Framework.Game.Run() + 0x7 bytes
GameStateManagementSample.exe!GameStateManagement.Program.Main() Line 108 + 0x6 bytes C#
謝謝! Ivatrix。
只是爲了澄清我在這裏找到什麼,這是否意味着「屏幕」在「屏幕」被初始化之前被修改了? – Ivatrix
哎呀我的意思是之後,而不是之前。 – Ivatrix
確定忽略我以前的評論我現在得到的是統計員,我對編程還很陌生:P我想我現在可能已經修復了它!雖然我無法確切知道,因爲這並非一貫的例外。我所做的是想想它是如何導致例外的,以便弄清楚爲什麼,並且我認爲它只發生在主菜單屏幕上,所以我必須在那裏改變某些東西。我查看了轉換主菜單屏幕和其他屏幕之間的區別,發現我只在主菜單中使用了空白播放器索引,而在其他 – Ivatrix