addleibie.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;

public partial class addleibie : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            order bindleibie = new order();
            DataSet ds = bindleibie.leibieBind();
            dropleibie.DataSource = ds.Tables[0].DefaultView;
            dropleibie.DataTextField = "leibie_name";
            dropleibie.DataBind();
            ds.Dispose();
        }
    }
    protected void btnenter_Click(object sender, EventArgs e)
    {
        if (txtleibie.Text != "")
        {
            order add = new order();
            add.leibieadd(this.txtleibie.Text.Trim());

            order bindleibie = new order();
            DataSet ds = bindleibie.leibieBind();
            dropleibie.DataSource = ds.Tables[0].DefaultView;
            dropleibie.DataTextField = "leibie_name";
            dropleibie.DataBind();
            ds.Dispose();
        }
    }
    protected void txtleibie_TextChanged(object sender, EventArgs e)
    {
        if (txtleibie.Text.Trim() != "")
        {
            order check = new order();
            int i = check.leibiecheck(this.txtleibie.Text);
            if (i == 0)
            {
                this.lblcheck.Text = "类别已存在";
                this.btnenter.Visible = false;
            }
            else
            {
                this.lblcheck.Text = "可以填加";
                this.btnenter.Visible = true;
            }
        }
        else
        {
            this.lblcheck.Text = "";
            this.btnenter.Visible = false;
        }
    }
    protected void btndelete_Click(object sender, EventArgs e)
    {
        if (dropleibie.SelectedItem.Text != "")
        {
            order deleteleibie = new order();
            deleteleibie.leibiedelete(this.dropleibie.SelectedItem.Text);

            order bindleibie = new order();
            DataSet ds = bindleibie.leibieBind();
            dropleibie.DataSource = ds.Tables[0].DefaultView;
            dropleibie.DataTextField = "leibie_name";
            dropleibie.DataBind();
            ds.Dispose();
        }
    }
    protected void dropleibie_SelectedIndexChanged(object sender, EventArgs e)
    {

    }
}