default.aspx.cs

这是asp.net^和Visual C++Sharp编写的串并口通讯的书籍 源代码

using System;
using System.Data;
using System.Configuration;
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 _Default : System.Web.UI.Page
{

    protected void Page_Load(object sender, EventArgs e)
    {
        SqlConnection con = new SqlConnection("Server=(local);database=mrdb;Uid=sa;Pwd=");
        SqlDataAdapter dap = new SqlDataAdapter("select * from tb_Book1 order by BookID desc", con);
        DataSet ds = new DataSet();
        dap.Fill(ds, "tb_BookInfo");
        GridView1.DataSource = ds;
        GridView1.DataKeyNames = new string[] { "BookID" };
        GridView1.DataBind();
    }
    protected void GridView1_RowDeleting(object sender, GridViewDeleteEventArgs e)
    {
        try
        {
        SqlConnection con = new SqlConnection("Server=(local);database=mrdb;Uid=sa;Pwd=");
        con.Open();
        SqlCommand cmd = new SqlCommand("procDeletebook", con);
        cmd.CommandType = CommandType.StoredProcedure;
        SqlParameter pares = new SqlParameter("@BookID", SqlDbType.Int, 4);
        cmd.Parameters.Add(pares);
        cmd.Parameters["@BookID"].Value = GridView1.DataKeys[e.RowIndex].Value.ToString();
        cmd.ExecuteNonQuery();
        con.Close();
        this.Page_Load(sender, e);
        Response.Write("<script>alert('删除成功！！！')</script>");
        }
        catch(Exception ex)
        {
            Response.Write(ex.Message.ToString());
            Response.Write("<script>alert('删除成功！！！')</script>");
        }

    }
    protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
    {
        GridView1.PageIndex = e.NewPageIndex;
        GridView1.DataBind();
    }
}