querystring.cs

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using System;
using System.Data;
using System.Configuration;
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;

/// <summary>
/// 此类主要接受QueryString对象，返回结果
/// </summary>
public class QueryString
{
	public QueryString()
	{
		//
		// TODO: 在此处添加构造函数逻辑
		//
	}

    /// <summary>
    /// 获取ID
    /// </summary>
    static public string GetId { get { return (HttpContext.Current.Request.QueryString["id"] == null) ? null : vldInput(System.Web.HttpContext.Current.Request.QueryString["id"]); } }

    /// <summary>
    /// 获取短信ID
    /// </summary>
    static public string GetMid { get { return (HttpContext.Current.Request.QueryString["mid"] == null) ? null : vldInput(System.Web.HttpContext.Current.Request.QueryString["mid"]); } }

    /// <summary>
    /// 获取大类ID
    /// </summary>
    static public string GetBigId { get { return (HttpContext.Current.Request.QueryString["bigid"] == null) ? null : vldInput(System.Web.HttpContext.Current.Request.QueryString["bigid"]); } }

    /// <summary>
    /// 获取小类ID
    /// </summary>
    static public string GetSmallId { get { return (HttpContext.Current.Request.QueryString["smallid"] == null) ? null : vldInput(System.Web.HttpContext.Current.Request.QueryString["smallid"]); } }
        
    /// <summary>
    /// 获取主题ID
    /// </summary>
    static public string GetThemeId { get { return (HttpContext.Current.Request.QueryString["themeid"] == null) ? null : vldInput(System.Web.HttpContext.Current.Request.QueryString["themeid"]); } }


    /// <summary>
    /// 获取回复ID
    /// </summary>
    static public string GetBackId { get { return (HttpContext.Current.Request.QueryString["backid"] == null) ? null : vldInput(System.Web.HttpContext.Current.Request.QueryString["backid"]); } }
    

    /// <summary>
    /// 获取分页ID
    /// </summary>
    static public string GetPageId { get { return (HttpContext.Current.Request.QueryString["page"] == null) ? "1" : vldInput(System.Web.HttpContext.Current.Request.QueryString["page"]); } }


    static private string vldInput(string strId)
    {
        try
        {
            int.Parse(strId);
            return strId;
        }
        catch { HttpContext.Current.Response.Redirect("Default.aspx"); return ""; }
    }
}