ASP 用GridView控件连接SQL Server数据库

1 在新建的网站中添加一个Web窗体（默认窗体为default.aspx）；

2 双击“对象资源管理器”中的Web.config对象，在该对象的设计代码窗口中添加如下代码，实现设置连接SQL Server数据库字符串的功能。

<connectionStrings><!--连接数据库-->
<add name="connection" connectionString="data source=.;integrated security=SSPI;initial catalog=newsfabu"></add>
</connectionStrings>  

3 双击Default.aspx在设计的界面中添加一个GridView控件。

4 双击Default.aspx.cs在代码区添加如下代码。

    protected void Page_Load(object sender, EventArgs e)

    {

        if (!IsPostBack)

        {

            GridViewBind();      //调用绑定数据信息函数

        }

    }

     public void GridViewBind()

    {

        this.Title = "新闻发布中心";

        SqlConnection sqlcon = new SqlConnection(ConfigurationManager.

                               ConnectionStrings["connection"].ConnectionString);

        sqlcon.Open();

        SqlDataAdapter adsa = new SqlDataAdapter("select * from news", sqlcon);

        DataSet ds = new DataSet();

        adsa.Fill(ds);

        if (ds.Tables[0].Rows.Count > 0)

        {

            GridView1.DataSource = ds;

            GridView1.DataBind();

        }

        sqlcon.Close();

    }

附：ASP连接数据库，并实现增删改的功能：

    protected void Page_Load(object sender, EventArgs e)

    {

        if (!IsPostBack)

        {

            GridViewBind();      //调用绑定数据信息函数www.2cto.com

        }

    }

 

    public void GridViewBind()

    {

        this.Title = "新闻发布中心";

        SqlConnection sqlcon = new SqlConnection(ConfigurationManager.

                               ConnectionStrings["connection"].ConnectionString);

        sqlcon.Open();

        SqlDataAdapter adsa = new SqlDataAdapter("select * from news", sqlcon);

        DataSet ds = new DataSet();

        adsa.Fill(ds);

        if (ds.Tables[0].Rows.Count > 0)

        {

            GridView1.DataSource = ds;

            GridView1.DataBind();

        }

        sqlcon.Close();

    }

 

    protected void 添加新闻_Click(object sender, EventArgs e)

    {

        if (TextBox1.Text == "" || TextBox2.Text == "")

        {

            this.Page.RegisterStartupScript("ss", "<script>alert('请输入编号')</script>");

        }

        else

        {

            SqlConnection con = new SqlConnection(ConfigurationManager.

                                ConnectionStrings["connection"].ConnectionString);

 

            string insert = "insert into news(新闻编号,新闻类别,新闻题目,新闻内容)

                            values(@_id,@_leibie,@_timu,@_neirong)";

 

            SqlCommand cmd=new SqlCommand (insert,con);

            cmd.Parameters.Add("@_id", SqlDbType.Int);

            cmd.Parameters["@_id"].Value = TextBox1.Text.Trim();

            cmd.Parameters.Add("@_leibie", SqlDbType.VarChar);

            cmd.Parameters["@_leibie"].Value = TextBox2.Text.Trim();

            cmd.Parameters.Add("@_timu", SqlDbType.VarChar);

            cmd.Parameters["@_timu"].Value = TextBox3.Text.Trim();

            cmd.Parameters.Add("@_neirong", SqlDbType.VarChar);

            cmd.Parameters["@_neirong"].Value = TextBox4.Text.Trim();

            con.Open();

            cmd.ExecuteNonQuery();

            GridViewBind();

 

        }

    }

 

    protected void 删除新闻_Click(object sender, EventArgs e)

    {

        if (TextBox1.Text == "")

        {

            this.Page.RegisterStartupScript("ss", "<script>alert('请输入你想删除的编号')</script>");

        }

        else

        {

            SqlConnection con = new SqlConnection(ConfigurationManager.

                               ConnectionStrings["connection"].ConnectionString);

            string delete = "delete news from news where 新闻编号='" + TextBox1.Text + "'";

            SqlCommand com = new SqlCommand(delete, con);

            con.Open();

            com.ExecuteNonQuery();

            con.Close();

            GridViewBind();

        }

    }

    protected void 修改新闻_Click(object sender, EventArgs e)

    {

        if (TextBox1.Text == "")

        {

            this.Page.RegisterStartupScript("ss", "<script>alert('请输入你要删除的编号')</script>");

        }

        else

        {

            SqlConnection con = new SqlConnection(ConfigurationManager.

                                ConnectionStrings["connection"].ConnectionString);

            string update = "update news set 新闻类别='" + TextBox2.Text + "',

                           新闻题目='" + TextBox3.Text + "',新闻内容='" +

                           TextBox4.Text + "' where 新闻编号='" + TextBox1.Text + "'";

            SqlCommand cmd = new SqlCommand(update, con);

            con.Open();

            cmd.ExecuteNonQuery();

            con.Close();

            GridViewBind();

        }

    }
 

摘自 net小伙