studLeavemessage.aspx.cs

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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 Default13 : System.Web.UI.Page
{
    SqlConnection conn;
    SqlCommand cmd;
    DataSet ds;
    string str;
    
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    
    protected void Button1_Click(object sender, EventArgs e)
    {
        string studName = Session["studName"].ToString();
        string content1 = this.TextBox1.Text;
        string dt = DateTime.Now.ToString();
        string str = DropDownList1.SelectedValue + ".gif";
        conn = sqldata.createCon();
        conn.Open();
        string sql = "insert into message(studName,studFace,content1,postTime)values ('" + studName + "','" + str + "','" + content1 + "','"+ dt +"')";
        cmd = new SqlCommand(sql, conn);
        if (Convert.ToInt32(cmd.ExecuteNonQuery()) > 0)
        {
            Response.Write("<script>alert('O(∩_∩)O~ 留言成功！');location.href='studMessage.aspx'</script>");

        }
        else
        {
            Response.Write("<script>alert('~~~~(>_<)~~~~  留言失败！');location.href='studLeavemessage.aspx'</script>");
 
        }
    }
    
    protected void Button2_Click(object sender, EventArgs e)
    {
        this.TextBox1.Text = "";
    }

    protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
    {
        string str = DropDownList1.SelectedValue + ".gif";
        this.Image1.ImageUrl = ".\\images\\userface\\" + str;
    }
}