default.aspx.cs

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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)
    {
        if (IsPostBack)
        {
            GridViewBind();
        }
    }
    public void GridViewBind()//绑定GridIDView控件的自定义方法
    {
        SqlConnection con = new SqlConnection("Server=(Local);Uid=sa;pwd=;DataBase=fangdawei");
        con.Open();
        SqlDataAdapter ada = new SqlDataAdapter("select * from tb_Member", con);
        DataSet ds = new DataSet();
        ada.Fill(ds);
        GridView1.DataSource = ds;
        GridView1.DataBind();
        con.Close();
    }

    public int getConut()
    {

        SqlConnection con = new SqlConnection("Data Source=(local);Database=fangdawei;Uid=sa;Pwd=;");
        con.Open();
        string str = "select * from tb_Member where name='" + TextBox1.Text + "'and sex='" + TextBox2.Text + "'and nPlace='" + TextBox3.Text + "'";
        SqlCommand com = new SqlCommand(str, con);
        int intcont = Convert.ToInt32(com.ExecuteScalar());
        con.Close();
        com.Clone();
        return intcont; 
    
    }
    protected void Button1_Click(object sender, EventArgs e)
    {
        if (getConut() != 0)
        {
            Response.Write("<script language=javascript>alert('对不起!不允许填写相同记录！')</script>");
        }
        else
        {

            try
            {
                SqlConnection sqlcon = new SqlConnection("Data Source=(local);Database=fangdawei;Uid=sa;Pwd=;");
                sqlcon.Open();
                string InsertSql = "insert into tb_Member(name,sex,nPlace) values ('" + TextBox1.Text + "','" + TextBox2.Text + "','" + TextBox3.Text + "')";
                SqlCommand com = new SqlCommand(InsertSql, sqlcon);
                com.ExecuteNonQuery();
                SqlDataAdapter ada = new SqlDataAdapter("select * from tb_Member", sqlcon);
                DataSet ds = new DataSet();
                ada.Fill(ds, "tb_Member ");
                GridView1.DataSource = ds;
                GridView1.DataBind();
                sqlcon.Close();
                Response.Write("<script language=javascript>alert('添加成功!')</script>");
            }
            catch
            {
                //    Response.Write("<script language=javascript>alert('添加失败！')</script>");
            }
        }
      }
    protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
    {

        GridView1.PageIndex = e.NewPageIndex;
        GridViewBind();
    }

}