ASP最简单的留言板制作【新手】
在设计界面制作Txtbox,Button,GridView
建立数据库,命名随意,一列,varchar 字节随意,一个字2字节,20表示不能超过10字
cs
protected void Page_Load(object sender, EventArgs e)//网页加载触发 { SqlConnection con = DB.conn();//引用DB类里面的方法connew() con.Open(); string sqlstr = "select * from liuyan";//新建查询语句 SqlDataAdapter sda = new SqlDataAdapter(sqlstr, con); DataSet ds = new DataSet();//新建数据集合 sda.Fill(ds);//往数据库集合填充数据 this.GridView1.DataSource = ds; this.GridView1.DataBind(); con.Close(); } protected void Button1_Click(object sender, EventArgs e)//单击按钮触发 { try { SqlConnection con = DB.conn(); con.Open(); string strsql = "insert into liuyan values(\'" + this.TextBox1.Text + "\')"; SqlCommand cmd = new SqlCommand(strsql, con); cmd.ExecuteNonQuery(); con.Close(); Response.Redirect("ly.aspx"); } catch (Exception ex) { Response.Write("<script>alert(\'留言失败!连接数据库失败 或 留言字数超过10字。\');</script>"); } }
using
using System; using System.Collections; using System.Configuration; using System.Data; using System.Linq; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.HtmlControls; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Xml.Linq; using System.Data.SqlClient;