我有一个outofmemoryexception。我试图从CRM超过7000个帐户检索并存入contratvuemodele列表。此列表将添加到contratvuemodele的observablecollection并绑定到datagrid。 但我的申请不起作用。 这是我的代码：
代码xaml：
<UserControl x:Class="GestionDeContrats_Offres_ClientsGUI.VueModele.UserControlGestionContrat"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
mc:Ignorable="d"
x:Name="GestionContrat"
xmlns:local="clr-namespace:GestionDeContrats_Offres_ClientsGUI.VueModele"
d:DesignHeight="300" >
<!-- <UserControl.DataContext>
<local:GestionDeContratVueModele />
</UserControl.DataContext>
-->
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="30"/>
<RowDefinition Height="40"/>
<RowDefinition />
<RowDefinition Height="40"/>
</Grid.RowDefinitions>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="320"/>
<ColumnDefinition Width="40" />
</Grid.ColumnDefinitions>
<TextBox Name="searchtexbox" Grid.Column="0"/>
<Image Grid.Column="1" Source="/GestionDeContrats_Offres_ClientsGUI;component/Images/16_find.gif" />
</Grid>
<ToolBar Grid.Row="1" Name="toolbarcontrat">
<Button Name="btNewContrat" Click="btNewContrat_Click">
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition/>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<Image Source="/GestionDeContrats_Offres_ClientsGUI;component/Images/plusvert.jpg" />
<Label Content="Nouveau" Grid.Column="1"/>
</Grid>
</Button>
<Button Name="btCopierContrat" >
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition/>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<Image Source="/GestionDeContrats_Offres_ClientsGUI;component/Images/editcopy.png" />
<Label Content="Copier" Grid.Column="1"/>
</Grid>
</Button>
<Button Name="btSupprimerContrat" >
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition/>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<Image Source="/GestionDeContrats_Offres_ClientsGUI;component/Images/delgreen16.jpg" />
<Label Content="Supprimer" Grid.Column="1"/>
</Grid>
</Button>
<Button Name="btModifierContrat" >
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition/>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<Image Source="/GestionDeContrats_Offres_ClientsGUI;component/Images/ico_18_4207.gif" />
<Label Content="Modifier" Grid.Column="1"/>
</Grid>
</Button>
</ToolBar>
<DataGrid Name="listViewContrat" Grid.Row="2" ScrollViewer.VerticalScrollBarVisibility="Auto" ItemsSource="{Binding Path=Lescontrats, Mode=OneWay}" IsSynchronizedWithCurrentItem="True" AutoGenerateColumns="False" CanUserReorderColumns="True" CanUserResizeColumns="True" CanUserSortColumns="True" CanUserAddRows="True" CanUserDeleteRows="True">
<DataGrid.Columns>
<DataGridTemplateColumn Header="Nom du contrat" >
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<TextBlock Text="{Binding Path=NOMDUCONTRAT, Mode=OneWay}"/>
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>
<DataGridTemplateColumn Header="Date de début" >
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<TextBlock Text="{Binding Path=DATEDEDEBUT, Mode=OneWay}"/>
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>
<DataGridTemplateColumn Header="Date de fin" >
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<TextBlock Text="{Binding Path=DATEDEFIN, Mode=OneWay}"/>
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>
<DataGridTemplateColumn Header="Statut" >
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<TextBlock Text="{Binding Path=LESTATUT,Mode=OneWay}"/>
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>
<DataGridTemplateColumn Header="Statut avant" >
<DataGridTemplateColumn.CellTemplate>
<DataTemplate>
<TextBlock Text=""/>
</DataTemplate>
</DataGridTemplateColumn.CellTemplate>
</DataGridTemplateColumn>
</DataGrid.Columns>
</DataGrid>
<StackPanel Grid.Row="3" Orientation="Horizontal">
<Label Margin="2" Content=""/>
<Button Content="Suivant" Name="btNext" Margin="2" />
<Button Content="Précédent" Name="btPrevious" Margin="2" />
</StackPanel>
</Grid>
</UserControl>
代码cs：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using GestionDeContrats_Offres_ClientsGUI.VueModele;
using System.Collections.ObjectModel;
using System.Windows.Data;
using System.ComponentModel;
using GestionDeContrats_Offres_Clients.GestionOffres;
using GestionDeContrats_Offres_Clients.GestionContrats;
using System.Windows.Input;
using GestionDeContrats_Offres_Clients.GestionModele;
using GestionDeContrats_Offres_ClientsGUI.crm;
using System.Data;
namespace GestionDeContrats_Offres_ClientsGUI.VueModele
{
/// <summary>
///
/// </summary>
public class GestionDeContratVueModele : VueModeleBase
{
private readonly ObservableCollection<ContratVueModele> contrats;
private readonly ICollectionView collectionView;
//private readonly PagingCollectionView pagingView;
private GestionDeContrat gestiondecontrat;
private ICommand activerContratCommand;
private ICommand supprimerContratCommand;
private ICommand modifierContratCommand;
private ICommand copierContratCommand;
private ICommand creerContratCommand;
private ICommand nextPageCommand;
private ICommand previousPageCommand;
private int currentpage;
/// <summary>
/// Constructeur de la classe
/// GestionDeContratVueModele
/// </summary>
public GestionDeContratVueModele() {
try
{
this.gestiondecontrat = new GestionDeContrat();
List<ContratVueModele> maliste = new List<ContratVueModele>(10000);
//maliste.Clear();
// this.contrats.Clear();
foreach (contract contrat in this.gestiondecontrat.ListeDeContrat())
{
// this.contrats.Add(new ContratVueModele());
maliste.Add(new ContratVueModele() { NOMDUCONTRAT = contrat.title, DATEDEDEBUT = contrat.activeon.Value, DATEDEFIN = contrat.expireson.Value, LESTATUT = contrat.statecode.formattedvalue, LESTATUTAVANT = contrat.access_etatavant.name });
// this.contrats.Add(new ContratVueModele() { NOMDUCONTRAT = contrat.title, DATEDEDEBUT = contrat.activeon.Value, DATEDEFIN = contrat.expireson.Value, LESTATUT = contrat.statecode.formattedvalue,LESTATUTAVANT=contrat.access_etatavant.name });
}
this.contrats = new ObservableCollection<ContratVueModele>(maliste);
this.collectionView = CollectionViewSource.GetDefaultView(this.contrats);
if (this.collectionView == null)
throw new NullReferenceException("collectionView");
// this.collectionView.CurrentChanged += new EventHandler(collectionView_CurrentChanged);
// this.pagingView = new PagingCollectionView(this.contrats, 15);
//if (this.pagingView == null)
//throw new NullReferenceException("pagingView");
//this.currentpage = this.pagingView.CurrentPage;
//this.pagingView.CurrentChanged += new EventHandler(pagingView_CurrentChanged);
}
catch (System.Web.Services.Protocols.SoapException soapEx)
{
soapEx.Detail.OuterXml.ToString();
}
catch (System.OutOfMemoryException memoryException)
{
memoryException.InnerException.ToString();
}
catch (System.Reflection.TargetInvocationException targetex) {
targetex.InnerException.ToString();
}
}
/// <summary>
///
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
//void pagingView_CurrentChanged(object sender, EventArgs e)
//{
// OnPropertyChanged("SelectedContrat");
// Dispose();
// //throw new NotImplementedException();
//}
/// <summary>
///
/// </summary>
/// <param name="gestiondecontrat"></param>
public GestionDeContratVueModele(GestionDeContrat gestiondecontrat)
{
this.gestiondecontrat = gestiondecontrat;
this.contrats = new ObservableCollection<ContratVueModele>();
foreach (contract contrat in this.gestiondecontrat.ListeDeContrat())
{
this.contrats.Add(new ContratVueModele() { NOMDUCONTRAT=contrat.title,DATEDEDEBUT=contrat.activeon.Value, DATEDEFIN=contrat.expireson.Value,LESTATUT=contrat.statecode.formattedvalue});
}
this.collectionView = CollectionViewSource.GetDefaultView(this.contrats);
if (this.collectionView == null)
throw new NullReferenceException("collectionView");
this.collectionView.CurrentChanged += new EventHandler(collectionView_CurrentChanged);
}
/// <summary>
///
/// </summary>
public ICommand ActiverContratCommand {
get
{
if (this.activerContratCommand == null)
this.activerContratCommand = new CommandeDeRelais(() => this.ActiverContrat(), () => this.CanActiverContrat());
return this.activerContratCommand;
}
}
/// <summary>
///
/// </summary>
public ICommand CopierContratCommand
{
get
{
if (this.copierContratCommand == null)
this.copierContratCommand = new CommandeDeRelais(() => this.CopierContrat(), () => this.CanCopierContrat());
return this.copierContratCommand;
}
}
/// <summary>
///
/// </summary>
/// <returns></returns>
private bool CanCopierContrat()
{
return true;
//throw new NotImplementedException();
}
/// <summary>
///
/// </summary>
private void CopierContrat()
{
this.gestiondecontrat.copier();
//throw new NotImplementedException();
}
/// <summary>
///
/// </summary>
//public ICommand NextPageCommand {
// get {
// if(this.nextPageCommand==null)
// this.nextPageCommand = new CommandeDeRelais(() => this.NextPage(), () => this.CanNextPage());
// return nextPageCommand;
// }
//}
/// <summary>
///
/// </summary>
//private void NextPage() {
// this.pagingView.MoveToNextPage();
//}
/// <summary>
///
/// </summary>
/// <returns></returns>
//private bool CanNextPage() {
// return this.pagingView.PageCount > 1;//true; //Todo à reimplementer correctement
//}
/// <summary>
/// Permet de gérer le passage à la page précedente
/// </summary>
//private void PreviousPage()
//{
// this.pagingView.MoveToPreviousPage();
//}
/// <summary>
/// Vérifie si on peut passer à la page précédente
/// </summary>
/// <returns>un booléen qui nous dit si on peut passer à la commande précédente</returns>
//private bool CanPreviousPage()
//{
// return this.pagingView.MoveCurrentToPrevious();//true; //Todo à reimplementer correctement
//}
/// <summary>
/// Lecteur qui prend en charge la commande associée au bouton
/// </summary>
//public ICommand PreviousPageCommand
//{
// get
// {
// if (this.previousPageCommand==null)
// this.previousPageCommand = new CommandeDeRelais(() => this.PreviousPage(), () => this.CanPreviousPage());
// return previousPageCommand;
// }
//}
/// <summary>
/// Lecteur de la page courante
/// </summary>
public int CURRENTPAGE {
get {
return this.currentpage;
}
}
/// <summary>
/// Lecteur qui prend en charge la Commande qui s'exécute quand on appuie sur le bouton créer
/// ce bouton sera lié à cette propriété
/// </summary>
public ICommand CreerContratCommand {
get
{
if (this.creerContratCommand == null)
this.creerContratCommand = new CommandeDeRelais(() => this.CreerContrat(), () => this.CanCreerContrat());
return this.creerContratCommand;
}
}
/// <summary>
/// Lecteur sur la commande supprimer le contrat
/// </summary>
public ICommand SupprimerContratCommand {
get {
if (this.supprimerContratCommand == null)
this.supprimerContratCommand = new CommandeDeRelais(() => this.SupprimerContrat(), () => this.CanSupprimerContrat());
return this.supprimerContratCommand;
}
}
/// <summary>
///
/// </summary>
public ICommand ModifierContratCommand {
get {
if (this.modifierContratCommand == null)
this.modifierContratCommand = new CommandeDeRelais(() => this.ModifierContrat(), () => this.CanModifierContrat());
return this.modifierContratCommand;
}
}
/// <summary>
/// Propriété permettant de manipuler la
///Vue Modèle de la liste des contrats
/// </summary>
public ObservableCollection<ContratVueModele> Lescontrats
{
get
{
return this.contrats;
}
}
/// <summary>
/// Propriété permettant de manipuler la vue modèle
/// de selection du contrat
/// </summary>
public ContratVueModele SelectedContrat
{
get
{
return this.collectionView.CurrentItem as ContratVueModele;
}
}
/// <summary>
/// Propriété permettant manipuler la vue modèle qui vérifie si
/// que la vue est vide
/// </summary>
public bool SearchContainsNoMatch
{
get
{
return this.collectionView.IsEmpty;
}
}
/// <summary>
/// Propriété permettant manipuler la vue modèle
/// de recherche du contrat en fonction du nom ou du statut
/// </summary>
public string RechercheText
{
set
{
this.collectionView.Filter = (item) =>
{
if (item as ContratVueModele == null)
return false;
ContratVueModele contratvueModele = (ContratVueModele)item;
if (contratvueModele.NOMDUCONTRAT.Contains(value) || contratvueModele.LESTATUT.Contains(value))
return true;
return false;
};
this.OnPropertyChanged("SearchContainsNoMatch");
}
}
/// <summary>
/// Handler pour la sélection du contrat
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
public void collectionView_CurrentChanged(object sender, EventArgs e)
{
OnPropertyChanged("SelectedContrat");
//Dispose();
//throw new NotImplementedException();
}
/// <summary>
///
/// </summary>
private void CreerContrat() {
try
{
this.gestiondecontrat.creer();
foreach (contract contrat in this.gestiondecontrat.ListeDeContrat())
{
this.contrats.Add(new ContratVueModele() { NOMDUCONTRAT=contrat.title, DATEDEDEBUT=contrat.activeon.Value, DATEDEFIN=contrat.expireson.Value, ADRESSE=contrat.serviceaddress.name, NET=contrat.netprice.Value});
}
}
catch(Exception creerEx){
creerEx.Message.ToString();
}
}
/// <summary>
///
/// </summary>
/// <returns></returns>
private bool CanCreerContrat() {
return true;
}
/// <summary>
///
/// </summary>
private void ActiverContrat()
{
try
{
this.gestiondecontrat.ActiverContrat(this.SelectedContrat.CONTRAT);
}
catch (Exception activerEx)
{
activerEx.Message.ToString();
}
}
/// <summary>
///
/// </summary>
/// <returns></returns>
private bool CanActiverContrat()
{
return this.SelectedContrat.LESTATUT != "Annulé";
}
/// <summary>
///
/// </summary>
private void SupprimerContrat()
{
try
{
this.gestiondecontrat.supprimer();
this.contrats.Remove(new ContratVueModele(this.SelectedContrat.CONTRAT));
}
catch (Exception supprimerEx)
{
supprimerEx.Message.ToString();
}
}
/// <summary>
///
/// </summary>
/// <returns></returns>
private bool CanSupprimerContrat()
{
return this.contrats.Count>0;//true;
}
/// <summary>
///
/// </summary>
private void ModifierContrat() {
this.gestiondecontrat.modifier();
}
/// <summary>
///
/// </summary>
/// <returns></returns>
private bool CanModifierContrat() {
return this.SelectedContrat != null;
}
/// <summary>
///
/// </summary>
private void OuvrirDocumentContrat()
{
try
{
// Contrat newContrat = this.gestiondecontrat.CreerContrat(new Contrat(new ModeleDeContrat()));
//this.contrats.Add(new ContratVueModele(newContrat));
}
catch (Exception OuvrirDocumentContratEx)
{
OuvrirDocumentContratEx.Message.ToString();
}
}
/// <summary>
///
/// </summary>
/// <returns></returns>
private bool CanOuvrirDocumentContrat()
{
return true;
}
}
}
背后的代码
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
namespace GestionDeContrats_Offres_ClientsGUI.VueModele
{
/// <summary>
/// Logique d'interaction pour UserControlGestionContrat.xaml
/// </summary>
public partial class UserControlGestionContrat : UserControl
{
private readonly GestionDeContratVueModele vuemodelecontrat;
/// <summary>
///
/// </summary>
public UserControlGestionContrat()
{
InitializeComponent();
this.vuemodelecontrat = new GestionDeContratVueModele();
this.DataContext = this.vuemodelecontrat;
}
}
}
在我的MainWindow.xaml中，我只是集成了所有usercontrol
由于
祝你好运
答案 0 :(得分：0)
我通过使用listview解决了这个问题的一部分，对设计进行了一些更改。我做了一些方法，并在我的构造函数中调用它，现在添加列表正在进入这些方法。我也改变了绑定模式。
现在我有另一个问题。 当我在visual studio上运行我的解决方案时，需要花费大量时间超过半小时。它消耗了许多资源。它没有正确完成。