c# winform 窗体 form 背景自动变换

 要操作步骤如下：

1：首先添加图片源

 

2：往窗体添加定时器timer1

在 timer1事件写上如下代码:

private void timer1_Tick(object sender, EventArgs e)<br /> {<br /> string num = null;<br /> for (int i = 1; i < 3; i++)<br /> {<br /> num += i.ToString() + ",";<br /> }<br /> num = num.Substring(0, num.Length - 1);<br /> string strSep = ",";<br /> string[] aryChar = num.Split(strSep.ToCharArray(), num.Length);<br /> Random Rnd = new Random(unchecked((int)DateTime.Now.Ticks));<br /> int hx = Convert.ToInt32(aryChar[Rnd.Next(aryChar.Length)]);<br /> Resources rs = new Resources();<br /> object obj = ResourceManager.GetObject(hx.ToString(), resourceCulture);<br /> this.BackgroundImage = ((System.Drawing.Bitmap)(obj));<br /> }

 

用到属性和方法如下：

private static global::System.Globalization.CultureInfo resourceCulture;<br /> private static global::System.Resources.ResourceManager resourceMan;<br /><br /> internal static global::System.Resources.ResourceManager ResourceManager<br /> {<br /> get<br /> {<br /> if (object.ReferenceEquals(resourceMan, null))<br /> {<br /> global::System.Resources.ResourceManager temp = new global::System.Resources.ResourceManager("loveyou.Properties.Resources", typeof(Resources).Assembly);<br /> resourceMan = temp;<br /> }<br /> return resourceMan;<br /> }<br /> }

 

到此已经结束！