2024年4月3日 星期三

[研究]ASP.NET,共用GridView1_PageIndexChanging (三)

[研究]ASP.NET,共用GridView1_PageIndexChanging (三)

2024-04-02

環境：Visual Studio 2022 + ASP.NET + WebForm + Web Application + C# + SQL Server 2019 + SQL Server Management Studio (SSMS) 19

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續這篇，再處理 Button_ShowPage_Click 和 Button_ShowAll_Click

[研究]ASP.NET,共用GridView1_PageIndexChanging (二)
https://shaurong.blogspot.com/2024/04/aspnetgridview1pageindexchanging_3.html

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Common.cs

using System;
using System.Web.UI.WebControls;

namespace WebApplication1
{
    public class Common
    {
        public delegate void PageIndexChangingEventHandler(object sender, GridViewPageEventArgs e);
        public delegate void ShowAllButtonClickEventHandler(object sender, EventArgs e);
        public delegate void ShowPageButtonClickEventHandler(object sender, EventArgs e);

        public static event PageIndexChangingEventHandler PageIndexChangingEvent;
        public static event ShowAllButtonClickEventHandler ShowAllButtonClickEvent;
        public static event ShowPageButtonClickEventHandler ShowPageButtonClickEvent;

        public static void GridView_PageIndexChanging(object sender, GridViewPageEventArgs e)
        {
            GridView gvw = (GridView)sender;
            TextBox TextBox_PageSize = (TextBox)gvw.BottomPagerRow.FindControl("TextBox_PageSize");
            bool success = Int32.TryParse(TextBox_PageSize.Text, out int number);
            if (success)
            {
                gvw.PageSize = number;
            }

            if (e.NewPageIndex < 0)
            {
                TextBox pageNum = (TextBox)gvw.BottomPagerRow.FindControl("txtNewPageIndex");
                int Pa = int.Parse(pageNum.Text);
                if (Pa <= 0)
                {
                    gvw.PageIndex = 0;
                }
                else
                {
                    gvw.PageIndex = Pa - 1;
                }
            }
            else
            {
                gvw.PageIndex = e.NewPageIndex;
            }
            //Bind();
        }
        public static void Button_ShowAll_Click(GridView gridView)
        {
            gridView.AllowPaging = false;
        }

        public static void Button_ShowPage_Click(GridView gridView)
        {
            gridView.AllowPaging = true;
        }
    }
}


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Default.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="WebApplication1.Default" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
        <asp:Button ID="Button_ShowAll" runat="server" Text="全部顯示" OnClick="Button_ShowAll_Click" />
        <asp:Button ID="Button_ShowPage" runat="server" Text="分頁顯示" OnClick="Button_ShowPage_Click" />
        <asp:SqlDataSource ID="SqlDataSource1" runat="server" 
            ConnectionString="<%$ ConnectionStrings:MyDBConnectionString %>" 
            SelectCommand="SELECT * FROM [MyTable]"></asp:SqlDataSource>
        <asp:GridView ID="GridView1" runat="server" AllowPaging="True" AllowSorting="True" 
            AutoGenerateColumns="False" DataKeyNames="SN" DataSourceID="SqlDataSource1"
            OnPageIndexChanging="GridView1_PageIndexChanging">
            <Columns>
                <asp:BoundField DataField="SN" HeaderText="SN" InsertVisible="False" ReadOnly="True" SortExpression="SN" />
                <asp:BoundField DataField="Field1" HeaderText="Field1" SortExpression="Field1" />
                <asp:BoundField DataField="Field2" HeaderText="Field2" SortExpression="Field2" />
            </Columns>
            <PagerTemplate>
            <table>
                <tr>
                    <td style="text-align: right">第&nbsp;<asp:Label ID="lblPageIndex" runat="server" Text="<%#((GridView)Container.Parent.Parent).PageIndex + 1 %>" ForeColor="Blue"></asp:Label>&nbsp;頁，
                        共&nbsp;<asp:Label ID="lblPageCount" runat="server" Text="<%# ((GridView)Container.Parent.Parent).PageCount %>" ForeColor="Blue" ></asp:Label>&nbsp;頁，
                        <asp:LinkButton ID="btnFirst" runat="server" CausesValidation="False" CommandArgument="First" CommandName="Page" Text="第一頁" CssClass="btn btn-primary btn-xs"></asp:LinkButton>&nbsp;&nbsp;
                        <asp:LinkButton ID="btnPrev" runat="server" CausesValidation="False" CommandArgument="Prev" CommandName="Page" Text="上一頁" CssClass="btn btn-primary btn-xs"></asp:LinkButton>&nbsp;&nbsp;
                        <asp:LinkButton ID="btnNext" runat="server" CausesValidation="False" CommandArgument="Next" CommandName="Page" Text="下一頁" CssClass="btn btn-primary btn-xs"></asp:LinkButton>&nbsp;&nbsp;
                        <asp:LinkButton ID="btnLast" runat="server" CausesValidation="False" CommandArgument="Last" CommandName="Page" Text="最後一頁" CssClass="btn btn-primary btn-xs"></asp:LinkButton>&nbsp;&nbsp;
                        跳到第<asp:TextBox ID="txtNewPageIndex" runat="server" Text="<%# ((GridView)Container.Parent.Parent).PageIndex + 1%>" Width="100px"></asp:TextBox>頁&nbsp;
                        每頁顯示<asp:TextBox ID="TextBox_PageSize" runat="server"  Text="<%# ((GridView)Container.Parent.Parent).PageSize %>"  Width="100px"></asp:TextBox>筆&nbsp;
                        <asp:LinkButton ID="btnGo" runat="server" CausesValidation="False" CommandArgument="-1" CommandName="Page" Text="GO" CssClass="btn btn-primary btn-xs"></asp:LinkButton>&nbsp;
                    </td>
                </tr>
            </table>
        </PagerTemplate>
        </asp:GridView>
    </form>
</body>
</html>

Default.aspx.cs

using System;
using System.Web.UI.WebControls;

namespace WebApplication1
{
    public partial class Default : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                GridView1.PageIndexChanging += Common.GridView_PageIndexChanging;
                Common.ShowAllButtonClickEvent += Button_ShowAll_Click;
                Common.ShowPageButtonClickEvent += Button_ShowPage_Click;
            }
        }
        protected void Button_ShowAll_Click(object sender, EventArgs e)
        {
            //Common.Button_ShowAll_Click(GridView1);
        }

        protected void Button_ShowPage_Click(object sender, EventArgs e)
        {
            //Common.Button_ShowPage_Click(GridView1);
        }
    }
}


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Default2.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default2.aspx.cs" Inherits="WebApplication1.Default2" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
        <asp:Button ID="Button_ShowAll" runat="server" Text="全部顯示" OnClick="Button_ShowAll_Click" />
        <asp:Button ID="Button_ShowPage" runat="server" Text="分頁顯示" OnClick="Button_ShowPage_Click" />
        <asp:SqlDataSource ID="SqlDataSource1" runat="server" 
            ConnectionString="<%$ ConnectionStrings:MyDBConnectionString %>" 
            SelectCommand="SELECT * FROM [MyTable]"></asp:SqlDataSource>
        <asp:GridView ID="GridView1" runat="server" AllowPaging="True" AllowSorting="True" 
            AutoGenerateColumns="False" DataKeyNames="SN" DataSourceID="SqlDataSource1"
            OnPageIndexChanging="GridView1_PageIndexChanging">
            <Columns>
                <asp:BoundField DataField="SN" HeaderText="SN" InsertVisible="False" ReadOnly="True" SortExpression="SN" />
                <asp:BoundField DataField="Field1" HeaderText="Field1" SortExpression="Field1" />
                <asp:BoundField DataField="Field2" HeaderText="Field2" SortExpression="Field2" />
            </Columns>
            <PagerTemplate>
            <table>
                <tr>
                    <td style="text-align: right">第&nbsp;<asp:Label ID="lblPageIndex" runat="server" Text="<%#((GridView)Container.Parent.Parent).PageIndex + 1 %>" ForeColor="Blue"></asp:Label>&nbsp;頁，
                        共&nbsp;<asp:Label ID="lblPageCount" runat="server" Text="<%# ((GridView)Container.Parent.Parent).PageCount %>" ForeColor="Blue" ></asp:Label>&nbsp;頁，
                        <asp:LinkButton ID="btnFirst" runat="server" CausesValidation="False" CommandArgument="First" CommandName="Page" Text="第一頁" CssClass="btn btn-primary btn-xs"></asp:LinkButton>&nbsp;&nbsp;
                        <asp:LinkButton ID="btnPrev" runat="server" CausesValidation="False" CommandArgument="Prev" CommandName="Page" Text="上一頁" CssClass="btn btn-primary btn-xs"></asp:LinkButton>&nbsp;&nbsp;
                        <asp:LinkButton ID="btnNext" runat="server" CausesValidation="False" CommandArgument="Next" CommandName="Page" Text="下一頁" CssClass="btn btn-primary btn-xs"></asp:LinkButton>&nbsp;&nbsp;
                        <asp:LinkButton ID="btnLast" runat="server" CausesValidation="False" CommandArgument="Last" CommandName="Page" Text="最後一頁" CssClass="btn btn-primary btn-xs"></asp:LinkButton>&nbsp;&nbsp;
                        跳到第<asp:TextBox ID="txtNewPageIndex" runat="server" Text="<%# ((GridView)Container.Parent.Parent).PageIndex + 1%>" Width="100px"></asp:TextBox>頁&nbsp;
                        每頁顯示<asp:TextBox ID="TextBox_PageSize" runat="server"  Text="<%# ((GridView)Container.Parent.Parent).PageSize %>"  Width="100px"></asp:TextBox>筆&nbsp;
                        <asp:LinkButton ID="btnGo" runat="server" CausesValidation="False" CommandArgument="-1" CommandName="Page" Text="GO" CssClass="btn btn-primary btn-xs"></asp:LinkButton>&nbsp;
                    </td>
                </tr>
            </table>
        </PagerTemplate>
        </asp:GridView>
    </form>
</body>
</html>

Default.aspx2.cs

using System;
using System.Web.UI.WebControls;

namespace WebApplication1
{
    public partial class Default2 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                GridView1.PageIndexChanging += Common.GridView_PageIndexChanging;
                Common.ShowAllButtonClickEvent += Button_ShowAll_Click;
                Common.ShowPageButtonClickEvent += Button_ShowPage_Click;
            }
        }
        protected void Button_ShowAll_Click(object sender, EventArgs e)
        {
            //Common.Button_ShowAll_Click(GridView1);
        }

        protected void Button_ShowPage_Click(object sender, EventArgs e)
        {
            //Common.Button_ShowPage_Click(GridView1);
        }
    }
}


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(完)

相關

[研究]ASP.NET,共用GridView1_PageIndexChanging (三)
https://shaurong.blogspot.com/2024/04/aspnetgridview1pageindexchanging_23.html

[研究]ASP.NET,共用GridView1_PageIndexChanging (二)
https://shaurong.blogspot.com/2024/04/aspnetgridview1pageindexchanging_3.html

[研究]ASP.NET,共用GridView1_PageIndexChanging (一)
https://shaurong.blogspot.com/2024/04/aspnetgridview1pageindexchanging.html

[研究][ASP.NET]設定 Gridview 分頁樣式為：第X頁，共X頁，第一頁 上一頁 下一頁 最後一頁 跳到第X頁 每頁顯示X筆
https://shaurong.blogspot.com/2020/04/aspnet-gridview-xx-x-x.html

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