个人理财系统C#密码修改

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1、代码：usingSystem;usingSystem.Collections.Generic;usingSystem.ComponentModel;usingSystem.Data;usingSystem.Drawing;usingSystem.Text;usingSystem.Windows.Forms;usingSystem.Data.SqlClient;namespaceFamilyFinance{   publicpartialclassxg:Form   {       publicxg(stringyh)       {    

2、       InitializeComponent();           txtName.Text=yh;       }       privatevoidqxg_Click(objectsender,EventArgse)       {           stringconnection="server=.;database=FamilyFinace;IntegratedSecurity=SSPI";           stringoldpwd=txtoldpwd.Text.Trim();           stringn

3、ewpwd=txtnewpwd.Text.Trim();           stringvertifypwd=txtqnewpwd.Text.Trim();           SqlCommandcmd;           SqlDataReadersr;           if(newpwd!=vertifypwd)           {               MessageBox.Show("两次密码输入不一致！");               clearPwd();           }           els

4、e           {               SqlConnectionconn=newSqlConnection(connection);               try               {                   conn.Open();                   cmd=newSqlCommand("select*fromFamilyUserwhereUserName='"+txtName.Text+"'andUserPassword='"+oldpwd+"'",conn);      

5、                                sr=cmd.ExecuteReader();                   boolsuccess=sr.HasRows;                   sr.Close();                   if(!success)                   {                       MessageBox.Show("旧密码不正确，请重新输入！");                       clearPwd();     

6、              }                   else                   {                       cmd.CommandText="updateFamilyUsersetUserPassword='"+newpwd+"'whereUserName='"+txtName.Text+"'";                                             cmd.ExecuteNonQuery();                       Message

7、Box.Show("密码修改成功！");                       LoginFormm=newLoginForm();                       m.Show();                       this.Hide();                   }               }               catch(SqlExceptionex)               {                   MessageBox.Show(ex.Message);  

8、             }               finally               {                   conn.Close();