info

<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />

string ConStr = "server=;uid=;pwd=;Initial Catalog=test;";

SqlConnection myConn = new SqlConnection(ConStr);

myConn.Open();

 

 

String ConStr = "server=kkk;Integrated Security=SSPI;Initial Catalog=NetWorkInfo;";

SqlConnection myConn = new SqlConnection(ConStr);

myConn.Open();

 

string myCommand = "INSERT INTO test(myname) values(@a)";

SqlCommand myComm = new SqlCommand(myCommand,myConn);

myComm.Parameters.Add(new SqlParameter("@a", SqlDbType.NVarChar, 10));

myComm.Parameters["@a"].Value = "Must ok!";

             

try

{

     myComm.ExecuteNonQuery();        

}

catch

{

     Test.Text="oh~~~~Error!";

}

 

<asp:requiredfieldvalidator

id=" " Runat="server" Display="None" ErrorMessage=" " ControlToValidate=" ">

</asp:requiredfieldvalidator>

 

<asp:comparevalidator id="ComPwd" runat="server" Display="None"

     ErrorMessage="两次输入的密码不一致" ControlToValidate="pwd1"

     EnableClientScript="false" Type="string" ControlToCompare="pwd2" Operator="Equal"></asp:comparevalidator>

<asp:validationsummary id=" " Runat="server"></asp:validationsummary></table>

 

类型转换

int.Parse(yourstring);

Convert.ToInt16(str);

 

验证类型

"^//d+$"　　           //非负整数（正整数 + 0）

"^[0-9]*[1-9][0-9]*$"　　 //正整数

"^((-//d+)|(0+))$"　　        //非正整数（负整数 + 0）

"^-[0-9]*[1-9][0-9]*$"　　    //负整数

"^-?//d+$"　　　　         //整数

"^[0-9]/d*[.]?/d*$"      //验证整数、小数的，

 

 

Bitmap bmp = new Bitmap(100,50);

 

Graphics g = Graphics.FromImage(bmp);

g.SmoothingMode = SmoothingMode.AntiAlias;

g.Clear(Color.LightGray);             

g.DrawString(new Random().Next().ToString(),new Font("Araial",12),

     new SolidBrush(Color.Red),new Rectangle(0,0,100,50),StringFormat.GenericDefault);

 

bmp.Save(Response.OutputStream,ImageFormat.Jpeg);

g.Dispose();

bmp.Dispose();
Response.End();