Compter le nombre total de lignes de gridview avec pagination
J'ai un GridView avec pagination. Lorsque j'essaie de compter gridview avec rowview.rows.count, il me donne le nombre de lignes pour la page actuelle uniquement.
Comment obtenir le nombre total de lignes de GridView indépendamment de l'index de page?
// Voici le code de la page .aspx
<%@ Page Title="Search candidates based on vacancy" Language="C#" MasterPageFile="~/HR Department/hrmasterpage.master"
AutoEventWireup="true" CodeFile="searcAppForVac.aspx.cs" Inherits="HR_Department_searcAppForVac" %>
<asp:Content ID="Content1" ContentPlaceHolderID="head" runat="Server"></asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="ContentPlaceHolder1" runat="Server"> <table width="100%">
<tr>
<td>
</td>
</tr>
<tr>
<td align="center" class="tdtitle">
Search Candidates
</td>
</tr>
<tr>
<td>
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<table width="100%">
<tr>
<td class="RowHeight" width="20%">
Select Company
</td>
<td width="30%">
<asp:DropDownList ID="companyList" runat="server" AppendDataBoundItems="true" AutoPostBack="True"
OnSelectedIndexChanged="companyList_SelectedIndexChanged" Width="150px">
<asp:ListItem Text="-Select Company-" Value="-1"></asp:ListItem>
</asp:DropDownList>
</td>
<td width="20%">
Select Department
</td>
<td width="30%">
<asp:DropDownList ID="deptList" runat="server" AppendDataBoundItems="true" AutoPostBack="True"
onclick="Validate();" OnSelectedIndexChanged="deptList_SelectedIndexChanged"
Width="150px">
<asp:ListItem Value="-1">-Select Department-</asp:ListItem>
</asp:DropDownList>
</td>
</tr>
<tr>
<td class="RowHeight" width="20%">
Select Vacancy
</td>
<td colspan="3" width="*">
<asp:DropDownList ID="vacanyList" runat="server" AppendDataBoundItems="true"
Width="200px" AutoPostBack="True"
onselectedindexchanged="vacanyList_SelectedIndexChanged">
<asp:ListItem Value="-1">-Select Vacancy-</asp:ListItem>
</asp:DropDownList>
</td>
</tr>
<tr>
<td colspan="4" align="center">
<asp:Label ID="notifyLbl" runat="server" Font-Size="Large" ForeColor="Red"
Text="Label"></asp:Label>
</td>
</tr>
<tr>
<td colspan="4">
<asp:Label ID="titleLbl" runat="server" Font-Size="Large" ForeColor="Red"
Text="Label"></asp:Label>
</td>
</tr>
<tr>
<td colspan="4">
<asp:GridView ID="appForVacGrid" runat="server" AutoGenerateColumns="False"
CellPadding="4" ForeColor="#333333" AllowPaging="True"
onpageindexchanging="appForVacGrid_PageIndexChanging" GridLines="None"
PageSize="3">
<RowStyle BackColor="#EFF3FB" />
<Columns>
<asp:TemplateField>
<HeaderTemplate>
App.ID
</HeaderTemplate>
<ItemTemplate>
<asp:Label ID="appIdLbl" runat="server" Text='<%# Eval("AppId") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
First Name
</HeaderTemplate>
<ItemTemplate>
<asp:Label ID="firstNameLbl" runat="server" Text='<%# Eval("AppFirstName") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
Last Name
</HeaderTemplate>
<ItemTemplate>
<asp:Label ID="lastNameLbl" runat="server" Text='<%# Eval("AppLastName") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
Qualification
</HeaderTemplate>
<ItemTemplate>
<asp:Label ID="qualiNameLbl" runat="server" Text='<%# Eval("QualiName") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
Experience
</HeaderTemplate>
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Eval("TotalExpYear") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
EmailId
</HeaderTemplate>
<ItemTemplate>
<asp:Label ID="emailLbl" runat="server" Text='<%# Eval("AppEmailId1") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateField>
<HeaderTemplate>
Send Mail
</HeaderTemplate>
<ItemTemplate>
<asp:CheckBox ID="sendMailBox" runat="server" />
</ItemTemplate>
</asp:TemplateField>
</Columns>
<FooterStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White"
HorizontalAlign="Right" />
<PagerStyle BackColor="#2461BF" ForeColor="White" HorizontalAlign="Center"
VerticalAlign="Top" />
<SelectedRowStyle BackColor="#D1DDF1" Font-Bold="True" ForeColor="#333333" />
<HeaderStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White"
Font-Size="Medium" HorizontalAlign="Left" />
<EditRowStyle BackColor="#2461BF" />
<AlternatingRowStyle BackColor="White" />
</asp:GridView>
</td>
</tr>
<tr>
<td colspan="4" align="center">
</td>
</tr>
<tr>
<td align="center" colspan="4">
<asp:Button ID="sendMailBtn" runat="server" Height="40px" Text="SEND MAIL"
Width="100px" onclick="sendMailBtn_Click" />
</td>
</tr>
<tr>
<%--<td>
</td>--%>
</tr>
</table>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="companyList" EventName="SelectedIndexChanged" />
<asp:AsyncPostBackTrigger ControlID="deptList" EventName="SelectedIndexChanged" />
<asp:AsyncPostBackTrigger ControlID="appForVacGrid" EventName="pageindexchanged" />
</Triggers>
</asp:UpdatePanel>
</td>
</tr>
<tr>
<td>
</td>
</tr>
<tr>
<td>
</td>
</tr>
</table>
<script type="text/javascript">
function alertOnBadSelection() {
var select = document.getElementById('companyList');
if (select.options[select.selectedIndex].value == "-Select Company-") {
alert('Please Select Company!');
return false;
}
}
</script>
// Ceci est le code de ma page aspx.cs
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.Collections;
public partial class HR_Department_searcAppForVac : System.Web.UI.Page
{
DataOperation oDo = new DataOperation();
AppVacancyDetailClass objAppVacDetail = new AppVacancyDetailClass();
protected void Page_Load(object sender, EventArgs e)
{
notifyLbl.Visible = false;
titleLbl.Visible = false;
sendMailBtn.Visible = false;
try
{
if (!IsPostBack)
{
// Disable department dropdown list and vacancy dropdown list till company is not selected.
deptList.Enabled = false;
vacanyList.Enabled = false;
//Fill Company dropdown list.
DataTable objCmpnyTable = oDo.DropDownList("select * from tblCompanyMaster");
if (objCmpnyTable.Rows.Count > 0)
{
companyList.DataSource = objCmpnyTable;
companyList.DataValueField = "CompId";
companyList.DataTextField = "CompName";
companyList.DataBind();
}
else
{
notifyLbl.Visible = true;
notifyLbl.Text = "There is not any company in the list.";
}
}
else
{
if (companyList.SelectedIndex <= 0)
{
//Disable department dropdown list and vacancy dropdown list till company is not selected.
deptList.Enabled = false;
vacanyList.Enabled = false;
}
}
}
catch (Exception)
{
throw;
}
}
protected void companyList_SelectedIndexChanged(object sender, EventArgs e)
{
//Disable vacancy dropdown list till depratment list is not selected
vacanyList.Enabled = false;
appForVacGrid.DataSource = null;
appForVacGrid.DataBind();
try
{
if (companyList.SelectedIndex > 0)
{
deptList.Enabled = true;
deptList.Items.Clear();
string str = "select * from vwCompWiseList where CompId=" + companyList.SelectedValue;
DataTable objDeptTable = oDo.DropDownList("select DeptId,DeptName from vwCompWiseDept where CompId= "+companyList.SelectedValue);
if (objDeptTable.Rows.Count > 0)
{
deptList.DataSource = objDeptTable;
deptList.DataTextField = "DeptName";
deptList.DataValueField = "deptId";
deptList.DataBind();
deptList.Items.Insert(0, new ListItem("--Select Department--", "-1"));
}
else
{
deptList.Items.Insert(0, new ListItem("--No Departments--", "-1"));
notifyLbl.Visible = true;
notifyLbl.Text = "No Departments Available in " + companyList.SelectedItem.Text;
}
}
else
{
notifyLbl.Visible = true;
notifyLbl.Text = "Select Company....";
appForVacGrid.DataSource = null;
appForVacGrid.DataBind();
}
}
catch (Exception)
{
throw;
}
}
protected void deptList_SelectedIndexChanged(object sender, EventArgs e)
{
try
{
if (deptList.SelectedIndex > 0)
{
vacanyList.Enabled = true;
vacanyList.Items.Clear();
DataTable objVacancytbl = oDo.DropDownList("select VacId,VacTitle from tblVacancyMaster where DeptId =" + deptList.SelectedValue + " and CompId=" + companyList.SelectedValue);
if (objVacancytbl.Rows.Count > 0)
{
vacanyList.DataSource = objVacancytbl;
vacanyList.DataValueField = "VacId";
vacanyList.DataTextField = "VacTitle";
vacanyList.DataBind();
vacanyList.Items.Insert(0, new ListItem("--Select Vacancy--", "-1"));
appForVacGrid.DataSource = null;
appForVacGrid.DataBind();
}
else
{
notifyLbl.Visible = true;
notifyLbl.Text = "ALL VACANCIES ARE CLOSED IN "+" "+deptList.SelectedItem.Text.ToUpper();
vacanyList.Enabled = false;
appForVacGrid.DataSource = null;
appForVacGrid.DataBind();
}
}
else
{
notifyLbl.Visible = true;
notifyLbl.Text = "Select Department...";
appForVacGrid.DataSource = null;
appForVacGrid.DataBind();
vacanyList.Enabled = false;
}
}
catch (Exception)
{
throw;
}
}
protected void vacanyList_SelectedIndexChanged(object sender, EventArgs e)
{
try
{
DataTable AppListTbl = objAppVacDetail.GetValue("CompId=" + companyList.SelectedValue + " and DeptId=" + deptList.SelectedValue + " and VacId=" + vacanyList.SelectedValue);
if (AppListTbl.Rows.Count > 0)
{
appForVacGrid.DataSource = AppListTbl;
appForVacGrid.DataBind();
appForVacGrid.Columns[5].Visible = false;
Session.Add("snAppListTbl", AppListTbl);
titleLbl.Visible = true;
titleLbl.Text = AppListTbl.Rows.Count.ToString() + " " + "CANDIDATE(S) ARE ELIGIBLE FOR THE POST OF" + " " + vacanyList.SelectedItem.Text.ToUpper() + ".";
sendMailBtn.Visible = true;
}
else
{
notifyLbl.Visible = true;
notifyLbl.Text = "ALL VACANCIES ARE CLOSED IN " + " " + deptList.SelectedItem.Text.ToUpper();
appForVacGrid.DataSource = null;
appForVacGrid.DataBind();
}
}
catch (Exception)
{
throw;
}
}
protected void appForVacGrid_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
//DataTable AppListTbl = (DataTable)Session["snAppListTbl"];
titleLbl.Visible = true;
titleLbl.Text = ((DataTable)Session["snAppListTbl"]).Rows.Count.ToString() + " " + "CANDIDATE(S) ARE ELIGIBLE FOR THE POST OF" + " " + vacanyList.SelectedItem.Text.ToUpper() + ".";
appForVacGrid.PageIndex = e.NewPageIndex;
appForVacGrid.DataSource = (DataTable)Session["snAppListTbl"];
appForVacGrid.DataBind();
sendMailBtn.Visible = true;
}
protected void sendMailBtn_Click(object sender, EventArgs e)
{
DataTable AppListTable = ((DataTable)Session["snAppListTbl"]);
int intTotalRows = AppListTable.Rows.Count;
string strFromId="",strToId="",strCcId="",strBccId="";
string strVacTitle="",strCompName="",strMailBody="";
string strSubject = "Rgarding Selection of Your Resume";
Label EmailLbl;
//for (int intRow = 0; intRow < intTotalRows; intRow++)
foreach (GridViewRow Row in appForVacGrid.Rows)
{
CheckBox objSendMail = (CheckBox)Row.FindControl("sendMailBox");
//CheckBox objSendMail = (CheckBox)appForVacGrid.Rows[Row].FindControl("sendMailBox");
if (objSendMail.Checked)
{
if (strToId == "")
{
//strToId = AppListTable.Rows[Row]["AppEmailId1"].ToString();
EmailLbl = (Label)Row.FindControl("emailLbl");
strToId = EmailLbl.Text;
}
else
{
//strToId += "," + AppListTable.Rows[Row]["AppEmailId1"].ToString();
EmailLbl = (Label)Row.FindControl("emailLbl");
strToId +=","+ EmailLbl.Text;
}
}
}
strVacTitle = AppListTable.Rows[intTotalRows]["VacTitle"].ToString();
strCompName = AppListTable.Rows[intTotalRows]["CompName"].ToString();
strMailBody = CommonProcedures.GetMailBody(strVacTitle, strCompName);
//CommonProcedures.SendMail(strFromId, strToId, strCcId, strBccId, strSubject, null, strMailBody, false);
}
}
Maintenant, je veux envoyer un courrier électronique à tous les candidats dont la case est cochée. J'ai tant de choses à traiter mais je n'ai pas trouvé de solution
oui, c'est vrai, il ne renverra que les lignes de la page en cours. Si vous voulez vraiment obtenir le nombre total de lignes, vous devez plutôt utiliser votre source de données.
Comme ... si vous avez DataTable, ce sera comme ...
DataTable.Rows.Count
si vous utilisez sqldatasource ou objectdatasource Vous devez utiliser la propriété ReturnValue de ObjectDataSourceStatusEventArgs ou SqlDataSourceStatusEventArgs pour gérer l'événement Selected de la source de données.
Si vous utilisez sqldatasource, vous pouvez compter le nombre total de lignes à l'aide de l'événement "Sélectionné" qui est déclenché à la fin de l'opération de sélection.
protected void SqlDataSource1_Selected(object sender, SqlDataSourceStatusEventArgs e)
{
int rowCount = e.AffectedRows;
}
Si vous utilisez une source de données objet, il est important de noter que l'événement Selected sur l'ODS est appelé deux fois, une fois le jeu de données renvoyé et la méthode que vous avez spécifiée dans la propriété SelectCountMethod. Testez simplement pour voir si le retour est un Int32 dans l'événement.
protected void ObjectDataSource1_Selected(object sender, ObjectDataSourceStatusEventArgs e)
{
if (e.ReturnValue.GetType() == typeof(System.Int32))
int rowCount = (Int32)e.ReturnValue;
}
Vous pouvez trouver un exemple de travail sur: http://www.webswapp.com/codesamples/aspnet20/dropdownlist_gridview/default.aspx
si votre GridView est rempli par un DataSet ou DataTable:
int rowCount=((DataTable)Customer).Rows.Count;
Si vous liez la liste ou le tableau d'objets, vous pouvez procéder comme suit:
int rowCount = ((Customer[])gv.DataSource).Count;
Oui, je pense que PagedDataSource est une meilleure option. Je l'utilise.
PagedDataSource pds = new PagedDataSource();
pds.DataSource = dt_main.DefaultView;
pds.AllowPaging = true;
pds.PageSize = 8;
int currentPage;
if (Request.QueryString["page"] != null)
{
currentPage = Int32.Parse(Request.QueryString["page"]);
}
else
{
currentPage = 1;
}
pds.CurrentPageIndex = currentPage - 1;
Label1.Text = "Page " + currentPage + " of " + pds.PageCount;
if (!pds.IsFirstPage)
{
linkPrev.NavigateUrl = Request.CurrentExecutionFilePath + "?page=" + (currentPage - 1);
}
if (!pds.IsLastPage)
{
linkNext.NavigateUrl = Request.CurrentExecutionFilePath + "?page=" + (currentPage + 1);
}
gridMain.DataSource = pds;
gridMain.DataBind();
Essayez ci-dessous le code
int _TotalRecs = ((System.Data.DataView)GridView.DataSource).Count;
int _CurrentRecStart = GridView.PageIndex * GridView.PageSize + 1;
int _CurrentRecEnd = GridView.PageIndex * GridView.PageSize + GridView.Rows.Count;
lblTitle.Text = string.Format("Displaying {0} to {1} of {2} records found", _CurrentRecStart, _CurrentRecEnd, _TotalRecs);
Par exemple La sortie sera comme ci-dessous ....
Afficher 1 à 15 de 67 résultats trouvés.
if (Grid.DataSource == null)
return 0;
else if (Grid.DataSource.GetType() == typeof(DataTable))
return (Grid.DataSource as DataTable).Rows.Count;
else if (Grid.DataSource.GetType().IsGenericType)
return (Grid.DataSource as IList).Count;
Vous pouvez utiliser une source de données paginée pour lier le gridview. Ce sera très facile pour la pagination personnalisée et obtenir le nombre de pages.
Comme ça
(gridview1.DataSource as DataTable).Rows.Count();
int a = grdvw.PageIndex;
int rowcount=0;
for (int i = 0; i < grdvw.PageCount; i++)
{
grdvw.SetPageIndex(i);
foreach (GridViewRow row in grdvw.Rows)
{
if (row.RowType == DataControlRowType.DataRow)
{
rowcount++;
}
}
}
grdvw.SetPageIndex(a);
<font-color='red'><b>dim dt as datatable<Br>
dt=gridview1.datasource<br>
msgbox (dt.rows.count)<b></font>
Si vous avez un gridview qui sera rempli en utilisant un datatable ou un dataset, comptez le datatable ou dataset (ds.table(0).rows.count) Par exemple
For cnt1 = 0 To Total_batchRecords - 1
dgchgsdtl1.Rows.Item(cnt1).FindControl("ControlName"), Label)
Next
Si vous utilisez une source de données ou une autre source de données, vous pouvez afficher le nombre total d'enregistrements de la source de données. Par exemple
if (dtLog != null && dtLog .Rows.Count >= 0)
{
lblTotal.Text = "Total " + Convert.ToString(dtLog .Rows.Count) + " records.";
}
try (gridView.DataSource comme IEnumerable <objet>). Count () pour la collection principale