excutescalar.aspx.cs

比较可以的源码

using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Data.SqlClient;
public partial class ExcuteScalar : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        //获取要执行的命令
        string sql = txtsql.Text;
        SqlCommand cmd = new SqlCommand();
        //定义对象资源保存的范围，一旦using范围结束，将释放对方所占的资源
        using (SqlConnection conn = new SqlConnection(SqlHelper.ConnectionStringLocalTransaction))
        {
            //打开连接
            conn.Open();
            //调用执行方法，因为没有参数，所以最后一项直接设置为null
            //注意返回结果是object类型
            object myobj = SqlHelper.ExecuteScalar(conn, CommandType.Text, sql, null);
            //显示返回的结果
            txtscalar.Text = myobj.ToString();
            
            //5_1_a_s_p_x.c_o_m
			Response.Write("<font color=red>操作完成！请检查数据库！</font>");
        }
    }
}