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.NET开发中的一些小技巧(转)

Posted on 2007-12-04 10:38  笑缘  阅读(330)  评论(0编辑  收藏  举报
这篇文章来自是Mukund   Pujari的《Some   Cool   Tips   for   .NET》,本人给大家翻译总结一下,我英语水平也就那么回事,不合适的地方还是请大家提出来。  

1.   如何创建一个可改变大小没有标题栏的窗体?(How   to   create   a   form   with   resizing   borders   and   no   title   bar?)  

form1.Text   =   string.   Empty;  
form1.ControlBox   =   false;  


2.   如何在.NET的Windows窗体上启用XP主题集?(How   to   use   XP   Themes   with   Windows   Forms   using   the   .NET?)  

确认你的控件中FlatStyle属性已经修改为System,再修改Main方法。  

static   void   Main()  
{  
Application.EnableVisualStyles();  
Application.DoEvents();  
Application.   Run(new   Form1());  
}  


3.   如何为一个窗体设置一个默认按钮?(How   to   set   the   default   button   for   a   form?)  

form1.AcceptButton   =   button1;  

4.   如何为一个窗体设置一个取消按钮?(How   to   set   the   Cancel   button   for   a   form?)  

form1.CancelButton   =   button1;  

5.   如何阻止一个窗体标题显示在任务栏上?(How   to   prevent   a   form   from   being   shown   in   the   taskbar?)  

设置窗体的ShowIntaskbar属性为False  

6.   如何用现有可用字体绑定到ComboBox控件?(How   to   fill   a   ComboBox   with   the   available   fonts?)  

comboBox1.Items.AddRange   (FontFamily.Families);  

7.   如何禁止TextBox控件默认的邮件菜单?(How   to   disable   the   default   ContextMenu   of   a   TextBox?)  

textBox1.ContextMenu   =   new   ContextMenu   ();  

8.   如何获取“我的文档”等一些系统文件夹路径?(How   to   get   the   path   for   "My   Documents "   and   other   system   folders?)  

Environment.SpecialFolder中包含了一些系统文件夹信息  
MessageBox.Show(Environment.GetFolderPath(   Environment.SpecialFolder.Personal   ));  

9.   如何获取应用程序当前执行的路径?(How   to   get   the   path   to   my   running   EXE?)  

string   appPath   =   Application.ExecutablePath;  

10.   如何确定当前运行的系统?(How   to   determine   which   operating   system   is   running?)  

OperatingSystem   os   =   Environment.OSVersion;  
MessageBox.Show(os.Version.ToString());  
MessageBox.Show(os.Platform.ToString());  

11.   如何从完整的路径中获取文件名?(How   to   get   a   file 's   name   from   the   complete   path   string?)  

用System.IO.Path.GetFileName   和   System.IO.Path.GetFileNameWithoutExtension(无扩展名)的方法  

12.   如何从完整的路径中获取文件扩展名?(How   to   get   a   file 's   extension   from   the   complete   path   string?)  

用System.IO.Path.GetExtension方法  

13.   如何使没有选择日期的DateTimePicker控件为空文本?(How   to   make   the   DateTimePicker   show   empty   text   if   no   date   is   selected?)  

dateTimePicker1.CustomFormat   =   "   ";  
dateTimePicker1.Format   =   DateTimePickerFormat.Custom;  

14.   如何在Report   Viewer中隐藏Crystal   Report的状态栏?(How   to   hide   the   status   bar   of   Crystal   Report   in   Report   Viewer?)  

foreach(object   obj   in   this.crystalReportViewer1.Controls)  
{  
if(   obj.GetType()==   typeof(System.Windows.Forms.StatusBar))  
{  
StatusBar   sBar=(StatusBar)obj;  
sBar.Visible=false;  
}  
}  


15.   如何利用Crystal   Report程序来生成PDF版本?(How   to   generate   PDF   version   of   Crystal   Report   programmatically?)  

ReportDocument   O_Report=new   ReportDocument();  
ExportOptions   exportOpts   =   new   ExportOptions();  
PdfRtfWordFormatOptions   pdfFormatOpts   =   new   PdfRtfWordFormatOptions   ();  
DiskFileDestinationOptions   diskOpts   =   new   DiskFileDestinationOptions();  
exportOpts   =   O_Report.ExportOptions;  
//   设置PDF格式  
exportOpts.ExportFormatType   =   ExportFormatType.PortableDocFormat;  
exportOpts.FormatOptions   =   pdfFormatOpts;  
//   设置文件选项和导出  
exportOpts.ExportDestinationType   =   ExportDestinationType.DiskFile;  
diskOpts.DiskFileName   =   "C://Trial.pdf ";   //设置PDF导出路径  
exportOpts.DestinationOptions   =   diskOpts;  
O_Report.Export   ();  


16.通过代码如何输入多行文本?(How   to   enter   multiline   text   in   textbox   through   code?   )  

利用TextBox控件的LINES属性  
string   []   strAddress   =   { "Mukund   Pujari ", "Global   Transformation   Technologies ", "Pune,   India "};  
textBox1.MultiLine=true;  
textBox1.Lines=strAddress;  

或者  
textBox1.Text= "Line   1\r\nLine2\r\nLine3. ";  

或者  
用 "System.Environment.NewLine "来替代换行符号  

17.   如何在DataGrid中去掉CheckBox不确定状态?(How   to   remove   the   indeterminate   status   of   checkbox   in   datagrid?)  

DataGridTableStyle   ts1   =   new   DataGridTableStyle();   //创建Table样式  
ts1.MappingName   =   "Items ";   //分配要应用样式的Data   Table  
DataGridColumnStyle   boolCol   =   new   DataGridBoolColumn();   //   创建CheckBox列  
boolCol.MappingName   =   "ch ";   //分配数据列名称  
boolCol.AllowNull=false;   //   修改AllowNull属性  

18.   如何在用一个数据源DataTable绑定两个控件,确保变化不反映在两个控件中?(   How   to   bind   two   controls   to   the   same   DataTable   without   having   changes   in   one   control   also   change   the   other   control?)  

我们在一个Form中放置一个ListBox和一个ComboBox控件,当数据源是一个DataTable而且绑定的ValueMember一致的时候我们选择ListBox中的一个Item时,ComboBox控件中的相同的Item也会被自动选中,我们可以采取建立新的上下文绑定对象来拒绝这样的同步操作  
comboBox1.DataSource   =   dataset.Tables[   "Items "   ];  
comboBox1.ValueMember   =   "CustomerID ";  
comboBox1.DisplayMember   =   "CustomerID ";  

listBox1.BindingContext   =   new   BindingContext();   //   设置新的上下文绑定对象  
listBox1.DataSource   =   dataset.Tables[   "Items "   ];  
listBox1.ValueMember   =   "CustomerID ";  
listBox1.DisplayMember   =   "CustomerID ";  

19.   一个简单的创建链接字符串的方法。(An   easy   way   to   build   connection   string.)  

记事本创建一个New.udl的文件,一个Microsoft   数据链接文件  
双击打开,熟悉吧  
按照向导创建完成一个数据库链接,测试成功  
确定后,链接字符串写入这个文件,用记事本打开就看到了  

20.   如何打开客户端E-Mail程序,Windows应用和Web应用?(   How   to   open   default   E-mail   client   on   your   system   with   all   parameters   entered   in   it,like   Outlook   Express   or   Eudora,   from   your   .NET   windows   or   Web   Application?   )  

Web   Application:  
A   href= "mailto:email@address1.com,email@address2.com?cc=email@address3.com&Subject=Hello&body=Happy   New   Year "  

Windows   Application:  
引用System.Diagnostics.Process   命名空间  
Process   process   =   new   Process();  
process.StartInfo.FileName   =   "mailto:email@address1.com,email@address2.com?subject=Hello&cc=email@address3.com  
&bcc=email@address4.com&body=Happy   New   Year "   ;  
process.Start();  

21.   VB.NET和C#有什么不同?(   What   is   difference   beween   VB.NET   and   C#.NET?   )  

去微软下载一个文档吧,http://download.microsoft.com/download/6/3/5/6354bf47-c597-4029-89e9-2495e7539ab9/vbcsharpwp.exe  

22.   How   to   find   whether   your   system   has   mouse   or   the   number   of   buttons,   whether   it   has   wheel,   or   whether   the   mouse   buttons   are   swapped   or   size   of   your   monitor   and   many   such   information?  

23.   如何使Windows   Form上的Panel或者Label控件半透明?(How   to   make   a   Panel   or   Label   semi-transparent   on   a   Windows   Form?   )  

通过设置控件背景色的alpha值  
panel1.BackColor   =   Color.FromArgb(65,   204,   212,   230);  
注意:在设计时手动输入这些值,不要用颜色选取  

24.   C#程序的主函数写[STA   Thread]   属性是什么目的?(What   is   the   purpose   of   the   [STA   Thread]   attribute   for   the   Main   method   of   a   C#   program?   )  

http://community.csdn.net/Expert/topic/4132/4132313.xml?temp=.2285272  


25.   如何触发Button的Click事件?(How   to   trigger   a   button   click   event?   )  

button1.PerformClick();  

http://bbs.csai.cn/bbs/view.asp?Id={7BD6E2EF-98E8-4367-8AE6-0A31904F50C2

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asp.net c# Design Pattern WebService Windows Report Control Mobile Windows Phone Visual Studio
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