UpdateCategory.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 ASPNETAJAXWeb.AjaxAlbum;
using System.Data.SqlClient;

public partial class UpdateCategory : System.Web.UI.Page
{
	int categoryID = -1;
    protected void Page_Load(object sender, EventArgs e)
    {   ///获取被修改数据的ID
		if(Request.Params["CategoryID"] != null)
		{
			categoryID = Int32.Parse(Request.Params["CategoryID"].ToString());
		}
		///显示被修改的数据
		if(!Page.IsPostBack && categoryID > 0)
		{
			BindPageData(categoryID);
		}
		///设置按钮是否可用
		btnCommit.Enabled = categoryID > 0 ? true : false;
    }

	private void BindPageData(int categoryID)
	{   ///读取数据
		Album album = new Album();
		SqlDataReader dr = album.GetSingleCategory(categoryID);
		if(dr == null) return;
		if(dr.Read())
		{   ///显示数据
			tbName.Text = dr["Name"].ToString();
			AjaxAlbumSystem.ListSelectedItemByValue(ddlStatus,dr["Status"].ToString());
		}
		dr.Close();
	}

	protected void btnCommit_Click(object sender,EventArgs e)
	{
		Album album = new Album();
		///修改图片分类的属性
		if(album.UpdateCategory(categoryID,tbName.Text,byte.Parse(ddlStatus.SelectedValue)) > 0)
		{	///重定向到管理页面		
			Response.Redirect("~/CategoryManage.aspx");
		}
	}
	protected void btnClear_Click(object sender,EventArgs e)
	{
		tbName.Text = string.Empty;
	}
    protected void Button1_Click(object sender, EventArgs e)
    {
        Response.Redirect("~/Default.aspx");