У меня есть много TabItem в окне с Frame и загружают UserControls внутри Frame, когда TabItem нажимается, как вы можете видеть на картинке ниже: 
Проблема:
При первом нажатии TabItem и загрузке «Sale UserControl» требуется память 121Mb .
При переключении 2-го TabItem требуется 128Mb
, затем снова переключается обратно на первый TabItem, который занимает 142Mb память.Тот же сценарий будет для других TabItems, каждый переключатель занимает память и не освобождается от последнего TabItem.
- Я переключил два TabItem 10 раз, потребление памяти кажется до 308MB , что вызывает тревогу.
Это увеличенная память, я думаю, направленная на утечки памяти.но я не могу понять откуда.пожалуйста, помогите,
Результат диагностического прибора:
Код:
<Window
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:Inventory_Control"
xmlns:view="clr-namespace:Inventory_Control.UserControls"
x:Class="Inventory_Control.MainWindow"
mc:Ignorable="d"
Title="MainWindow" WindowState="Maximized" WindowStartupLocation="CenterScreen" Icon="Images/app_icon.png">
<Grid>
<Grid.Resources>
<Style TargetType="{x:Type TabItem}">
<Setter Property="Margin" Value="5"/>
</Style>
<Style TargetType="{x:Type StackPanel}">
<Setter Property="Orientation" Value="Vertical"/>
<Setter Property="MinWidth" Value="160"/>
<Setter Property="MinHeight" Value="90"/>
</Style>
<Style TargetType="{x:Type Image}">
<Setter Property="Margin" Value="10,10,5,0"/>
<Setter Property="Width" Value="40"/>
<Setter Property="Height" Value="40"/>
<Setter Property="HorizontalAlignment" Value="Left"/>
</Style>
<Style TargetType="{x:Type TextBlock}">
<Setter Property="VerticalAlignment" Value="Center"/>
<Setter Property="Margin" Value="10,3,0,5"/>
<Setter Property="Foreground" Value="White"/>
<Setter Property="FontSize" Value="18"/>
</Style>
</Grid.Resources>
<Grid.RowDefinitions>
<RowDefinition Height="0.079*" />
<RowDefinition Height="1*" />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="1*" />
<!--<ColumnDefinition Width="0.2*" />-->
</Grid.ColumnDefinitions>
<Viewbox HorizontalAlignment="Left">
<TabControl x:Name="TabControl" Padding="0" MouseUp="TabControl_MouseUp">
<TabItem MouseUp="TabItem_MouseUp">
<TabItem.Header>
<StackPanel Orientation="Vertical" Background="#3e7038">
<Image Source="Images/sale.png"/>
<TextBlock Text="Sale" />
</StackPanel>
</TabItem.Header>
</TabItem>
<TabItem x:Name="ItemsTab" MouseUp="ItemsTab_MouseUp">
<TabItem.Header>
<StackPanel Background="#0073c4">
<Image Source="Images/product.png"/>
<TextBlock Text="Items" />
</StackPanel>
</TabItem.Header>
</TabItem>
<TabItem x:Name="CategoryTab" MouseUp="CategoryTab_MouseUp">
<TabItem.Header>
<StackPanel Background="#404040">
<Image Source="Images/category.png" />
<TextBlock Text="Category" />
</StackPanel>
</TabItem.Header>
</TabItem>
<TabItem x:Name="TypeTab" MouseUp="TypeTab_MouseUp">
<TabItem.Header>
<StackPanel Background="#404040">
<Image Source="Images/type.png" />
<TextBlock Text="Type" />
</StackPanel>
</TabItem.Header>
</TabItem>
<TabItem x:Name="LocationTab" MouseUp="LocationTab_MouseUp">
<TabItem.Header>
<StackPanel Background="#404040">
<Image Source="Images/location.png" />
<TextBlock Text="Location" />
</StackPanel>
</TabItem.Header>
</TabItem>
<TabItem x:Name="CustomerTab" MouseUp="CustomerTab_MouseUp">
<TabItem.Header>
<StackPanel Background="#FF364834">
<Image Source="Images/customer.png"/>
<TextBlock Text="Customer" />
</StackPanel>
</TabItem.Header>
</TabItem>
<TabItem x:Name="SupplierTab" MouseUp="SupplierTab_MouseUp">
<TabItem.Header>
<StackPanel Background="#FF364834">
<Image Source="Images/supplier.png"/>
<TextBlock Text="Supplier" />
</StackPanel>
</TabItem.Header>
</TabItem>
<TabItem Name="LedgerTab">
<TabItem.Header>
<StackPanel Background="#FF7F7C7C">
<Image Source="Images/ledger.png" />
<TextBlock Text="Ledger" />
</StackPanel>
</TabItem.Header>
</TabItem>
<TabItem x:Name="UserTab" MouseUp="UserTab_MouseUp">
<TabItem.Header>
<StackPanel Background="#FFB17369">
<Image Source="Images/user.png" />
<TextBlock Text="User" />
</StackPanel>
</TabItem.Header>
</TabItem>
<TabItem x:Name="ExpenseTab" MouseUp="AddExpenses_MouseUp">
<TabItem.Header>
<StackPanel Background="#cc6d00">
<Image Source="Images/expense.png" />
<TextBlock Text="Expense" />
</StackPanel>
</TabItem.Header>
</TabItem>
<TabItem Name="ReportTab" MouseUp="TabItem_MouseUp_2">
<TabItem.Header>
<StackPanel Background="#00879c">
<Image Source="Images/report.png" />
<TextBlock Text="Report" />
</StackPanel>
</TabItem.Header>
</TabItem>
<TabItem x:Name="HistoryTab" MouseUp="HistoryTab_MouseUp">
<TabItem.Header>
<StackPanel Background="#FF324F54">
<Image Source="Images/history.png" />
<TextBlock Text="History" />
</StackPanel>
</TabItem.Header>
</TabItem>
<TabItem x:Name="InventoryTrailTab" MouseUp="InventoryTrailTab_MouseUp">
<TabItem.Header>
<StackPanel Background="Tomato">
<Image Source="Images/history.png" />
<TextBlock Text="Inventory Trail" />
</StackPanel>
</TabItem.Header>
</TabItem>
</TabControl>
</Viewbox>
<!--<Button Name="LogoutBtn" Height="auto" MinWidth="50" Width="50" Content="Logout" Grid.Column="1"/>-->
<Frame Grid.Row="1" Grid.ColumnSpan="2" x:Name="mainFrame" NavigationUIVisibility="Hidden"/>
</Grid>
</Window>
cs:
using Inventory_Control.Classes;
namespace Inventory_Control
{
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window
{
int selectedTab = 0;
string userType = Util.GetUserType();
public MainWindow()
{
InitializeComponent();
mainFrame.Content = new FileTab();
if (userType.Equals(Util.editor))
{
EditorPrivilidges();
}
if (userType.Equals(Util.salesman))
{
SalesmanPrevilidges();
}
}
void SalesmanPrevilidges()
{
EditorPrivilidges();
ItemsTab.Visibility = Visibility.Collapsed;
CategoryTab.Visibility = Visibility.Collapsed;
TypeTab.Visibility = Visibility.Collapsed;
LocationTab.Visibility = Visibility.Collapsed;
CustomerTab.Visibility = Visibility.Collapsed;
SupplierTab.Visibility = Visibility.Collapsed;
}
void EditorPrivilidges()
{
ReportTab.Visibility = Visibility.Collapsed;
HistoryTab.Visibility = Visibility.Collapsed;
UserTab.Visibility = Visibility.Collapsed;
ExpenseTab.Visibility = Visibility.Collapsed;
LedgerTab.Visibility = Visibility.Collapsed;
}
private void TabItem_MouseUp(object sender, MouseButtonEventArgs e)
{
if (selectedTab != 0)
{
mainFrame.Content = new FileTab();
}
}
private void SaleTab_MouseUp(object sender, MouseButtonEventArgs e)
{
}
private void ItemsTab_MouseUp(object sender, MouseButtonEventArgs e)
{
if (selectedTab != 1)
{
mainFrame.Content = new ItemsTab();
}
}
private void TabItem_MouseUp_1(object sender, MouseButtonEventArgs e)
{
}
private void CategoryTab_MouseUp(object sender, MouseButtonEventArgs e)
{
if (selectedTab != 2)
{
mainFrame.Content = null;
mainFrame.Content = new CategoryTab();
}
}
private void TypeTab_MouseUp(object sender, MouseButtonEventArgs e)
{
if (selectedTab != 3)
{
mainFrame.Content = new TypeTab();
}
}
private void LocationTab_MouseUp(object sender, MouseButtonEventArgs e)
{
if (selectedTab != 4)
{
mainFrame.Content = new LocationTab();
}
}
private void CustomerTab_MouseUp(object sender, MouseButtonEventArgs e)
{
if (selectedTab != 5)
{
mainFrame.Content = new CustomerTab();
}
}
private void SupplierTab_MouseUp(object sender, MouseButtonEventArgs e)
{
if (selectedTab != 6)
{
mainFrame.Content = new SupplierTab();
}
}
private void UserTab_MouseUp(object sender, MouseButtonEventArgs e)
{
if (selectedTab != 8)
{
mainFrame.Content = new UserTab();
}
}
private void TabItem_MouseUp_2(object sender, MouseButtonEventArgs e)
{
if (selectedTab != 10)
{
mainFrame.Content = new ReportTab();
}
}
private void HistoryTab_MouseUp(object sender, MouseButtonEventArgs e)
{
if (selectedTab != 11)
{
mainFrame.Content = new HistoryTab();
}
}
private void InventoryTrailTab_MouseUp(object sender, MouseButtonEventArgs e)
{
if (selectedTab != 12)
{
mainFrame.Content = new InventoryTrail();
}
}
private void SalesmanTab_MouseUp(object sender, MouseButtonEventArgs e)
{
if (mainFrame.Content != new SalesmanTab())
{
mainFrame.Content = new SalesmanTab();
}
}
private void AddExpenses_MouseUp(object sender, MouseButtonEventArgs e)
{
if (mainFrame.Content != new AddExpenses())
{
mainFrame.Content = new AddExpenses();
}
}
private void TabControl_MouseUp(object sender, MouseButtonEventArgs e)
{
selectedTab = TabControl.SelectedIndex;
}
}
}