技巧1
有一个类似VB6的OpenFileDialog控件,不过专门用于FileOpen操作,不再跟Font等对话框混在一起。主要属性:MultiSelect,ShowReadOnly,ReadOnlyChecked,Filter, 例子:

// Open a file open dailog
     dlgFile.Filter = "XML files(*.xml)|*.xml|All files (*.*)|*.*";
     dlgFile.ShowDialog();
     strFilePath=dlgFile.FileName;
     if (strFilePath=="" ) return;

技巧2

Try
 { 
 
 Cursor.Current=Cursors.WaitCursor;
 }
 Catch
 { 
 
 }
 Finally
 { 
 
 Cursor.Current=Cursors.Default;
 } 技巧3
 // DoEvents in C#
 Application.DoEvents(); 技巧4
 // Replace method of string
 strTmp.Replace(old,new); 技巧5
 // Set Nothing in C#
 obj = null; 技巧6
 // C# Array declaration
 int[] varname;