addpinmin.aspx.cs

一个较小的采购系统,一些比较实际的代码,可以用来参考

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 addpinmin : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            order bindleibie = new order();
            this.dropleibie.DataSource =  bindleibie.leibieBind();
            dropleibie.DataTextField = "leibie_name";
            this.dropleibie.DataBind();

           
            order supply = new order();
            dropsupply.DataSource = supply.selectsupply();
            dropsupply.DataTextField = "supply_Name";
            dropsupply.DataBind();
            supply.selectsupply().Dispose();
            dropsupply.Items.Insert(0, new ListItem("无", "无"));
        }
     
    }
    protected void txtleibie_TextChanged(object sender, EventArgs e)
    {
    }
    protected void txtpinmin_TextChanged(object sender, EventArgs e)
    {
        if (txtpinmin.Text.Trim() != "")
        {
            order checkpinmin = new order();
            int i = checkpinmin.pinmincheck(txtpinmin.Text.Trim());
            if (i == 0)
            {
                this.add.Visible = false;
                this.lblcheck.Text = "品名存在";
            }
            else
            {
                this.add.Visible = true;
                this.lblcheck.Text = "品名可以添加";
            }
        }
        else
        {
            this.add.Visible = false;
            this.lblcheck.Text = "";
        }
    }
    protected void dropnature_SelectedIndexChanged(object sender, EventArgs e)
    {
        if (this.dropnature.SelectedItem.Text == "配送")
        {
            this.dropsupply.Visible = true;
        }
        else
        {
            this.dropsupply.Visible = false;
        }
    }
    public static string GetUniqueString()//定义时间格试，以后改图片名用 
    {
        //得到的文件名形如：20050922101010 
        return DateTime.Now.ToString("yyyyMMddhhmmss");
    }
    public void upimg()
    {
        string strname = File1.PostedFile.FileName;//获取上传文件服务器上的路径 

        try
        {

            if (strname != "")//判断是否为空 
            {
                string filename = strname.Substring(strname.LastIndexOf("\\") + 1);//获取文件名 
                string fullname = strname.Substring(strname.LastIndexOf("."));
                string filenewname = GetUniqueString() + fullname;//上传后图片命名 
                string type = filename.Substring(filename.LastIndexOf(".") + 1);//获取文件后缀 

                if (type == "gif" || type == "jpg" || type == "png" || type == "jpeg")//判断图片类型 
                {
                    if (File1.PostedFile.ContentLength < 1024 * 1024)//判断图片大小 
                    {

                        File1.PostedFile.SaveAs(Server.MapPath("picture") + "\\" + filenewname);//保存图片 

                        this.Image1.ImageUrl = "picture/" + filenewname;//显示图片 

                       // Response.Write(dt);

                        //Response.Write(filenewname); 
                 //插入数据库 
                string strpath = "picture/" + filenewname;
                order add = new order();
                add.addpinmin(txtpinmin.Text, dropsupply.SelectedItem.Text, txtGG.Text, dropleibie.SelectedItem.Text, dropnature.SelectedItem.Text, txtprice.Text, txtsuoxie.Text, strpath);
                this.txtpinmin.Text = "";
                this.txtprice.Text = "";
                this.txtsuoxie.Text = "";
                this.txtGG.Text = "";
                this.add.Visible = false;


                    }
                    else
                    {
                        Response.Write("<script>alert('图片太大(350kb以下)，请修改后在上传!');</script>");
                    }
                    //Response.Write(fullname); 
                }
                else
                {
                    Response.Write("<script>alert('类型错误！请选择gif/jpg/png/jpeg格试的图片!');</script>");
                }
               
            }
            else
            {
                Response.Write("<script>alert('请选择要上传的图片!');</script>");
            }

        }
        catch (Exception ex)
        {
            Response.Write("<script>alert('无法预料的错误');</script>" + ex.Message);
        }
    }


    protected void btnenter_Click(object sender, EventArgs e)
    {
        if (this.txtpinmin.Text != "" && this.txtGG.Text != "" && txtsuoxie.Text != "")
        {
            upimg();
        }
        else
        {
            Response.Redirect("<script>alert('请填写完整!')</script>");
        }
    }
}