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            飛天
            

            快樂的生活......
            

             
            
			
            
				
					
	
            
		
            
			.net分頁控件
		
            
		
              public class CPager2 : WebControl
                            {
                    [Bindable(            true)]
                    [Category(            "Appearance")]
                    [DefaultValue(            "")]
                    [Localizable(            true)]
                    public CPager2()
                                {
                        FirstImage             = "../image/backward24.gif";
                        PreviousImage             = "../image/back24.gif";
                        NextImage             = "../image/next24.gif";
                        EndImage             = "../image/forward24.gif";

                        FirstImage2             = "../image/backward24-gray.gif";
                        PreviousImage2             = "../image/back24-gray.gif";
                        NextImage2             = "../image/next24-gray.gif";
                        EndImage2             = "../image/forward24-gray.gif";
                        CreatePage();
                    }



                    #region 創(chuàng)始
                    private             void CreatePage()
                                {
                                    this.CssClass = "Page2";

                        
                                    //第一頁
                        ImageButton FirstBtn = new ImageButton();
                        FirstBtn.ID             = "First";
                        FirstBtn.CommandName             = "First";
                        FirstBtn.CssClass             = "PageButton";
                        FirstBtn.ImageUrl             = FirstImage;
                                    this.Controls.Add(FirstBtn);
                        FirstBtn.Enabled             = false;
                        FirstBtn.Command             += new CommandEventHandler(Button_Command);

                        ImageButton preBtn             = new ImageButton();
                        preBtn.ID             = "Previous";
                        preBtn.CommandName             = "Previous";
                        preBtn.CssClass             = "PageButton";
                        preBtn.ImageUrl             = PreviousImage;
                                    this.Controls.Add(preBtn);
                        preBtn.Enabled             = false;
                        preBtn.Command             += new CommandEventHandler(Button_Command);

                                    //----------------------------------------------------------------------------------------------------------------
                        //下一頁
                        ImageButton nextBtn = new ImageButton();
                        nextBtn.ID             = "Next";
                        nextBtn.CommandName             = "Next";
                        nextBtn.CssClass             = "PageButton";
                                    this.Controls.Add(nextBtn);
                        nextBtn.ImageUrl             = NextImage;
                        nextBtn.Command             += new CommandEventHandler(Button_Command);

                        ImageButton EndBtn             = new ImageButton();
                        EndBtn.ID             = "End";
                        EndBtn.CommandName             = "End";
                        EndBtn.CssClass             = "PageButton";
                        EndBtn.ImageUrl             = EndImage;
                                    this.Controls.Add(EndBtn);
                        EndBtn.Command             += new CommandEventHandler(Button_Command);

                        DropDownList drp             = new DropDownList();
                        drp.AutoPostBack             = true;
                        drp.ID             = "ddlGo";
                        drp.CssClass             = "PageGo";
                                    this.Controls.Add(drp);
                        drp.SelectedIndexChanged             += new EventHandler(drp_SelectedIndexChanged);


                    }

                    #region Command
                                void Button_Command(object sender, CommandEventArgs e)
                                {
                        PageChangedEventArgs ex             = new PageChangedEventArgs();
                        ex.OldPageIndex             = PageIndex;

                                    switch (e.CommandName)
                                    {
                                        case "First":
                                PageIndex             = 0;
                                            break;
                                        case "Next":
                                PageIndex             = PageIndex + 1;
                                            break;
                                        case "Previous":
                                PageIndex             = PageIndex - 1;
                                            break;
                                        case "End":
                                PageIndex             = PageTotal - 1;
                                            break;
                        }

                        PageButtonStatus();

                        ex.NewPageIndex             = PageIndex;
                        OnPageIndexChange(ex);

                    }
                    #endregion
                    #region 設(shè)置狀態(tài)
                    private             void PageButtonStatus()
                                {
                                    if (PageIndex <= 0)
                                    {
                            ((ImageButton)            this.FindControl("First")).Enabled = false;
                            ((ImageButton)            this.FindControl("Previous")).Enabled = false;

                            ((ImageButton)            this.FindControl("First")).ImageUrl = FirstImage2;
                            ((ImageButton)            this.FindControl("Previous")).ImageUrl = PreviousImage2;
                        }
                                    else
                                    {
                            ((ImageButton)            this.FindControl("First")).Enabled = true;
                            ((ImageButton)            this.FindControl("Previous")).Enabled = true;

                            ((ImageButton)            this.FindControl("First")).ImageUrl = FirstImage;
                            ((ImageButton)            this.FindControl("Previous")).ImageUrl = PreviousImage;
                        }
                                    if (PageIndex >= PageTotal - 1)
                                    {
                            ((ImageButton)            this.FindControl("Next")).Enabled = false;
                            ((ImageButton)            this.FindControl("End")).Enabled = false;

                            ((ImageButton)            this.FindControl("Next")).ImageUrl = NextImage2;
                            ((ImageButton)            this.FindControl("End")).ImageUrl = EndImage2;
                        }
                                    else
                                    {
                            ((ImageButton)            this.FindControl("Next")).Enabled = true;
                            ((ImageButton)            this.FindControl("End")).Enabled = true;

                            ((ImageButton)            this.FindControl("End")).ImageUrl = EndImage;
                            ((ImageButton)            this.FindControl("Next")).ImageUrl = NextImage;
                        }

                        DropDownList ddlGo             = (DropDownList)FindControl("ddlGo");
                        ddlGo.Items.Clear();
                                    for (int i = 1; i <=PageTotal; i++)
                                    {
                            ddlGo.Items.Add(i.ToString());
                        }
                                    if(PageTotal>0)
                            ddlGo.SelectedIndex             = PageIndex;
                    }
                    #endregion

                                void drp_SelectedIndexChanged(object sender, EventArgs e)
                                {
                        PageChangedEventArgs ex             = new PageChangedEventArgs();
                        ex.OldPageIndex             = PageIndex;
                        DropDownList ddlGo             = (DropDownList)FindControl("ddlGo");
                        PageIndex             = ddlGo.SelectedIndex;
                        PageButtonStatus();

                        ex.NewPageIndex             = PageIndex;
                        OnPageIndexChange(ex);

                    }
                    #endregion

                    #region 屬性

                    [Description(            "當(dāng)前頁")]
                    public             int PageIndex
                                {
                        get
                                    {
                                        int temp = 0;
                                        if (ViewState["PageIndex"] != null)
                                temp             = Convert.ToInt32(ViewState["PageIndex"]);
                                        return temp;
                        }
                        set
                                    {
                            ViewState[            "PageIndex"] = value;
                        }
                    }

                                /// <summary>
                    /// 設(shè)置總頁數(shù)
                    /// </summary>
                    [Description("總頁數(shù)")]
                    public             int PageTotal
                                {
                        get
                                    {
                                        if (ViewState["PageTotal"] != null)
                                            return Convert.ToInt32((ViewState["PageTotal"]));
                                        else
                                            return 0;
                        }
                        set
                                    {
                            ViewState[            "PageTotal"] = value;
                            
                                        this.PageButtonStatus();

                        }
                    }
                    [Category(            "設(shè)置圖片")]
                    [Description(            "第一頁圖片")]
                    public string FirstImage
                                {
                        get
                                    {
                            string temp             = "";
                                        if (ViewState["FirstImage"] != null)
                                temp             = Convert.ToString(ViewState["FirstImage"]);
                                        return temp;
                        }
                        set
                                    {
                            ViewState[            "FirstImage"] = value;
                        }
                    }
                    [Category(            "設(shè)置圖片")]
                    [Description(            "上一頁圖片")]
                    public string PreviousImage
                                {
                        get
                                    {
                            string temp             = "";
                                        if (ViewState["PriviousImage"] != null)
                                temp             = Convert.ToString(ViewState["PriviousImage"]);
                                        return temp;
                        }
                        set
                                    {
                            ViewState[            "PriviousImage"] = value;
                        }
                    }
                    [Category(            "設(shè)置圖片")]
                    [Description(            "下一頁圖片")]
                    public string NextImage
                                {
                        get
                                    {
                            string temp             = "";
                                        if (ViewState["NextImage"] != null)
                                temp             = Convert.ToString(ViewState["NextImage"]);
                                        return temp;
                        }
                        set
                                    {
                            ViewState[            "NextImage"] = value;
                        }
                    }
                    [Category(            "設(shè)置圖片")]
                    [Description(            "末頁圖片")]
                    public string EndImage
                                {
                        get
                                    {
                            string temp             = "";
                                        if (ViewState["EndImage"] != null)
                                temp             = Convert.ToString(ViewState["EndImage"]);
                                        return temp;
                        }
                        set
                                    {
                            ViewState[            "EndImage"] = value;
                        }
                    }

                    [Category(            "設(shè)置圖片")]
                    [Description(            "第一頁圖片")]
                    public string FirstImage2
                                {
                        get
                                    {
                            string temp             = "";
                                        if (ViewState["FirstImage2"] != null)
                                temp             = Convert.ToString(ViewState["FirstImage2"]);
                                        return temp;
                        }
                        set
                                    {
                            ViewState[            "FirstImage2"] = value;
                        }
                    }
                    [Category(            "設(shè)置圖片")]
                    [Description(            "上一頁圖片")]
                    public string PreviousImage2
                                {
                        get
                                    {
                            string temp             = "";
                                        if (ViewState["PriviousImage2"] != null)
                                temp             = Convert.ToString(ViewState["PriviousImage2"]);
                                        return temp;
                        }
                        set
                                    {
                            ViewState[            "PriviousImage2"] = value;
                        }
                    }
                    [Category(            "設(shè)置圖片")]
                    [Description(            "下一頁圖片")]
                    public string NextImage2
                                {
                        get
                                    {
                            string temp             = "";
                                        if (ViewState["NextImage2"] != null)
                                temp             = Convert.ToString(ViewState["NextImage2"]);
                                        return temp;
                        }
                        set
                                    {
                            ViewState[            "NextImage2"] = value;
                        }
                    }
                    [Category(            "設(shè)置圖片")]
                    [Description(            "末頁圖片")]
                    public string EndImage2
                                {
                        get
                                    {
                            string temp             = "";
                                        if (ViewState["EndImage2"] != null)
                                temp             = Convert.ToString(ViewState["EndImage2"]);
                                        return temp;
                        }
                        set
                                    {
                            ViewState[            "EndImage2"] = value;
                        }
                    }

                    #endregion

                    #region 事件
                    public delegate             void PageChangedEventHandler(object sender, PageChangedEventArgs e);
                    public event PageChangedEventHandler PageIndexChanged;
                    protected virtual             void OnPageIndexChange(PageChangedEventArgs e)
                                {
                                    if (PageIndexChanged != null)
                            PageIndexChanged(            this, e);
                    }



                   #endregion

                }
            

		
            
			posted on 2008-03-23 14:58 飛天 閱讀(342) 評論(0)  編輯 收藏 引用  所屬分類: Web 
		
            
	
            
	
	


	


            
	    
    




            






            

				
			
            
			
            
				
					

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