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問題是，如果IAM排序與員工領域assend或取消它正在排序完美，如果IAM按下一個或上一個按鈕它是排序暫停順序和只顯示在暫停順序可以任何身體幫助TP如何在GridView1_PageIndexChanging（）綁定的GridView數據事件的工作完全asp.net gridview排序和分頁
這是我default3.aspx頁
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
</div>
<asp:GridView ID="GridView1" runat="server" AllowSorting="true"
AutoGenerateColumns="False" onsorting="GridView1_Sorting"
CurrentSortField="employeeid" CurrentSortDirection="ASC"
onrowcreated="GridView1_RowCreated" AllowPaging="true"
CaptionAlign="Bottom" onpageindexchanging="GridView1_PageIndexChanging"
onprerender="GridView1_PreRender"
PageSize="2">
<Columns>
<asp:BoundField DataField="EmployeeId" HeaderText="Last Name"
ItemStyle-Width="15%" SortExpression="EmployeeId" >
<ItemStyle Width="15%"></ItemStyle>
</asp:BoundField>
<asp:BoundField DataField="Name" HeaderText="First Name" ItemStyle-Width="15%"
SortExpression="Name" >
<ItemStyle Width="15%"></ItemStyle>
</asp:BoundField>
<asp:BoundField DataField="gender" HeaderText="Email" ItemStyle-Width="15%" >
<ItemStyle Width="15%"></ItemStyle>
</asp:BoundField>
<asp:TemplateField HeaderText="Change Password" ItemStyle-Width="15%">
<ItemTemplate>
<asp:LinkButton ID="imgbtn1" runat="server">change password</asp:LinkButton>
</ItemTemplate>
<ItemStyle Width="15%"></ItemStyle>
</asp:TemplateField>
<asp:BoundField DataField="city" HeaderText="Date created" ItemStyle-Width="15%">
<ItemStyle Width="15%"></ItemStyle>
</asp:BoundField>
</Columns>
<PagerSettings Mode="NextPreviousFirstLast" />
</asp:GridView>
<asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
<br />
<asp:ImageButton ID="ImageButton1" runat="server"
ImageUrl="~/images/up_arrow.png" Width="10px" />
</form>
</body>
</html>
這是我default.aspx.cs代碼
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;
public partial class Default3 : System.Web.UI.Page
{
public class Employee
{
public int EmployeeId { get; set; }
public string Name { get; set; }
public string gender { get; set; }
public string city { get; set; }
}
public static DataSet getallemployees()
{
String cs = "Data Source=.;database=users;Integrated Security=SSPI";
using (SqlConnection con = new SqlConnection(cs))
{
SqlCommand cmd = new SqlCommand("select * from tblEmployees", con);
SqlDataAdapter da = new SqlDataAdapter("select * from tblEmployees", con);
DataSet ds = new DataSet();
da.Fill(ds);
return ds;
}
}
public static List<Employee> GetAllEmployees1(string sortColumn)
{
List<Employee> listEmployees = new List<Employee>();
String cs = "Data Source=.;database=users;Integrated Security=SSPI";
using (SqlConnection con = new SqlConnection(cs))
{
string sqlQuery = "select * from tblEmployees";
if (!string.IsNullOrEmpty(sortColumn))
{
sqlQuery += " order by " + sortColumn;
}
con.Open();
SqlCommand cmd = new SqlCommand(sqlQuery, con);
SqlDataReader rdr = cmd.ExecuteReader();
while (rdr.Read())
{
Employee employee = new Employee();
employee.EmployeeId = Convert.ToInt32(rdr["Employeeid"]);
employee.Name = rdr["name"].ToString();
employee.Name = rdr["gender"].ToString();
employee.Name = rdr["city"].ToString();
listEmployees.Add(employee);
}
rdr.Close();
}
return listEmployees;
}
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
GridView1.DataSource= GetAllEmployees1("employeeid");
GridView1.DataBind();
}
}
protected void GridView1_Sorting(object sender, GridViewSortEventArgs e)
{
SortDirection sortDirection = SortDirection.Ascending;
string sortField = string.Empty;
SortGridview(GridView1, e, out sortDirection, out sortField);
string strsortDirection = sortDirection == SortDirection.Ascending ? "ASC" : "DESC";
GridView1.DataSource = GetAllEmployees1(e.SortExpression + " " + strsortDirection);
GridView1.DataBind();
}
private void SortGridview(GridView gridview, GridViewSortEventArgs e, out SortDirection sortDirection, out string sortField)
{
sortField = e.SortExpression;
sortDirection = e.SortDirection;
if (gridview.Attributes["CurrentSortField"] != null && gridview.Attributes["CurrentSortDirection"] != null)
{
if (sortField == gridview.Attributes["CurrentSortField"])
{
if (gridview.Attributes["CurrentSortDirection"] == "ASC")
{
sortDirection = SortDirection.Descending;
}
else
{
sortDirection = SortDirection.Ascending;
}
}
gridview.Attributes["CurrentSortField"] = sortField;
gridview.Attributes["CurrentSortDirection"] = (sortDirection == SortDirection.Ascending ? "ASC" : "DESC");
}
}
protected void GridView1_RowCreated(object sender, GridViewRowEventArgs e)
{
if (GridView1.Attributes["CurrentSortField"] != null && GridView1.Attributes["CurrentSortDirection"] != null)
{
if (e.Row.RowType == DataControlRowType.Header)
{
foreach (TableCell tableCell in e.Row.Cells)
{
if (tableCell.HasControls())
{
LinkButton sortLinkButton = null;
if (tableCell.Controls[0] is LinkButton)
{
sortLinkButton = (LinkButton)tableCell.Controls[0];
}
if (sortLinkButton != null && GridView1.Attributes["CurrentSortField"] == sortLinkButton.CommandArgument)
{
Image image = new Image();
if (GridView1.Attributes["CurrentSortDirection"] == "ASC")
{
image.ImageUrl = "~/images/down_arrow.png";
image.Width = 10;
image.Height = 10;
}
else
{
image.ImageUrl = "~/images/~/images/up_arrow.png";
image.Width = 10;
image.Height = 10;
}
tableCell.Controls.Add(new LiteralControl(" "));
tableCell.Controls.Add(image);
}
}
}
}
}
}
protected void GridView1_PreRender(object sender, EventArgs e)
{
Label1.Text = "Displaying Page " + (GridView1.PageIndex + 1).ToString() + " of " + GridView1.PageCount.ToString();
}
protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
GridView1.PageIndex = e.NewPageIndex;
GridView1.DataSource = getallemployees();
GridView1.DataBind();
}
}
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;
public partial class viewstate_dataset : System.Web.UI.Page
{
public DataSet getallemployees
{
get{
if (ViewState["Empdetails"] == null)
{
String cs = "Data Source=.;database=users;Integrated Security=SSPI";
using (SqlConnection con = new SqlConnection(cs))
{
SqlCommand cmd = new SqlCommand("select * from tblEmployees", con);
SqlDataAdapter da = new SqlDataAdapter("select EmployeeId,Name,gender+','+Name as gender,city from tblEmployees", con);
DataSet ds = new DataSet();
da.Fill(ds);
ViewState["Empdetails"] = ds;
}
} return (DataSet)ViewState["Empdetails"];
}
set
{
ViewState["Empdetails"] = value;
}
}
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
GridView1.DataSource = getallemployees;
GridView1.DataBind();
Session["sortDirection"] = SortDirection.Descending;
}
}
protected void GridView1_Sorting(object sender, GridViewSortEventArgs e)
{
string sortexp=e.SortExpression;
Session["sortexp"] = sortexp;
if (Session["sortDirection"] != null && Session["sortDirection"].ToString() == SortDirection.Descending.ToString())
{
Session["sortDirection"] = SortDirection.Ascending;
sort (sortexp, "ASC");
}
else
{
Session["sortDirection"] = SortDirection.Descending;
sort(sortexp, "DESC");
}
}
private void sort(string soreExpression, string p)
{
DataView dv = null;
dv = new DataView(getallemployees.Tables[0]);
dv.Sort = soreExpression + " " + p;
GridView1.DataSource = dv;
GridView1.DataBind();
}
protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
string sortExp = string.Empty;
string NewSortDirection = string.Empty;
GridView1.PageIndex = e.NewPageIndex;
if (Session["sortexp"] != null)
{
sortExp = (string)Session["sortexp"];
if (Session["sortDirection"] != null && Session["sortDirection"].ToString() == SortDirection.Ascending.ToString())
{
NewSortDirection = "ASC";
}
else
{
NewSortDirection = "DESC";
}
sort(sortExp, NewSortDirection);
}
else
{
GridView1.DataSource = getallemployees;
GridView1.DataBind();
}
}
protected void GridView1_RowCreated(object sender, GridViewRowEventArgs e)
{
if (GridView1.Attributes["sortexp"] != null && Session["sortDirection"] != null)
{
if (e.Row.RowType == DataControlRowType.Header)
{
foreach (TableCell tableCell in e.Row.Cells)
{
if (tableCell.HasControls())
{
LinkButton sortLinkButton = null;
if (tableCell.Controls[0] is LinkButton)
{
sortLinkButton = (LinkButton)tableCell.Controls[0];
}
if (sortLinkButton != null && Session["sortexp"].ToString() == sortLinkButton.CommandArgument)
{
Image image = new Image();
if (Session["sortDirection"].ToString() == "ASC")
{
image.ImageUrl = "~/images/down_arrow.png";
image.Width = 10;
image.Height = 10;
}
else
{
image.ImageUrl = "~/images/up_arrow.png";
image.Width = 10;
image.Height = 10;
}
tableCell.Controls.Add(new LiteralControl(" "));
tableCell.Controls.Add(image);
}
}
}
}
}
}
}
但在排序數據UPARROW和向下箭頭是不是標題欄來請任何機構幫助我