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 以下是引用片段: 
其主要代码实现如下: protected void Page_Load(object sender, EventArgs e)     {         if (!Page.IsPostBack)         {             if (Request.QueryString["ID"] != null)             {                 //显示当前的公司货运车辆信息                 DataTable tmprs = new DataTable();                 tmprs = DataBase.Get_Table("select * from 公司货运车辆 where 车辆编号 ='" + Request.QueryString["ID"] + "'");                 if (tmprs.Rows.Count > 0)                 {                     this.txtID.Text = tmprs.Rows[0]["车辆名称"].ToString();                     this.txtXm.Text = tmprs.Rows[0]["车辆牌照"].ToString();                     this.TextBox5.Text = tmprs.Rows[0]["车辆主要用途"].ToString();                     this.TextBox2.Text = tmprs.Rows[0]["驾驶人员"].ToString();                     this.TextBox1.Text = tmprs.Rows[0]["车辆承载"].ToString();                     this.txtID.Enabled = false;                     this.TextBox4.Text = tmprs.Rows[0]["备注"].ToString();                 }             }         }     }     protected void Button1_Click(object sender, EventArgs e)     {         //跳转页面         Response.");     }     protected void Button2_Click(object sender, EventArgs e)     {         if (Request.QueryString["ID"] == null)         {             //判断信息是否正确             if (this.txtID.Text == "")             {                 this.Terr.>";                 return;             }             //添加公司货运车辆信息             DataBase.ExecSql("insert into 公司货运车辆(车辆名称,车辆牌照,车辆主要用途,驾驶人员,车辆承载,备注) values('" + this.txtID.Text + "','" + this.txtXm.Text + "','" + TextBox5.Text + "','" + TextBox2.Text + "','" + TextBox1.Text + "','" + TextBox4.Text + "')");         }         else         {             //修改货运车辆信息             DataBase.ExecSql("update 公司货运车辆 set 车辆名称='" + txtID.Text + "',车辆牌照='" + this.txtXm.Text + "',车辆主要用途='" + TextBox5.Text + "',驾驶人员='" + TextBox2.Text + "',车辆承载='" + TextBox1.Text + "',备注='" + TextBox4.Text + "' where 车辆编号='" + Request.QueryString["ID"] + "'");         }         Response.");     } }
 
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