Memory Leak

Grids for WPF Forum

Posted 11 years ago by Aleksander Brzozowski
Version: 4.5.0470
Platform: .NET 3.5
Environment: Windows Vista (32-bit)
Avatar
Hello
I`ve noticed memory leak in property grid.
Every time I change "SelectedObject" memory using grows up ( 1-7 MB !!!) (look in windows task manager).
Any ideas?

Best regards

Sample is below.

class TestObject
    {
        int a;
        decimal b;
        string c;
        [Category("Something"), DisplayName("Int property")]
        public int A
        {
            set
            {
                this.a = value;
            }
            get
            {
                return this.a;
            }
        }
        [Category("Something"), DisplayName("Decimal property")]
        public decimal B
        {
            set
            {
                this.b = value;
            }
            get
            {
                return this.b;
            }
        }
        [Category("Something"), DisplayName("String property")]
        public string C
        {
            set { this.c = value; }
            get { return this.c; }
        }

        public TestObject(int a, decimal b, string c)
        {
            this.a = a;
            this.b = b;
            this.c = c;
        }
    }
MyWindowConstructor and treeViewSelectedItemChanged event handle

            public Window1()
        {
            InitializeComponent();
            List<TestObject> list = new List<TestObject>();
            for (int i = 0; i < 10; i++)
            {
                list.Add(new TestObject(i, (decimal)i*100, "Object " + i.ToString()));
            }
            treeView1.ItemsSource = list;
            treeView1.SelectedItemChanged += new      RoutedPropertyChangedEventHandler<object>(treeView1_SelectedItemChanged);
        }

void treeView1_SelectedItemChanged(object sender, RoutedPropertyChangedEventArgs<object> e)
        {
            propertyGrid1.SelectedObject = treeView1.SelectedValue;
        }

MyWindow [XAML]

<Window x:Class="MemLeakPropGrid.Window1"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    Title="Window1" Height="300" Width="398" xmlns:propgrid="http://schemas.actiprosoftware.com/winfx/xaml/propgrid">
    <Grid>
        <propgrid:PropertyGrid Margin="0,0,0,62" Name="propertyGrid1" HorizontalAlignment="Right" Width="159" />
        <TreeView Margin="0,0,0,62" Name="treeView1" HorizontalAlignment="Left" Width="143" >
            <TreeView.ItemTemplate>
                <DataTemplate>
                    <Grid>
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition Width="10"/>
                            <ColumnDefinition Width="30"/>
                            <ColumnDefinition Width="60"/>
                        </Grid.ColumnDefinitions>
                        <TextBlock Text="{Binding Path=A}" Padding="2,0,0,0" Grid.Column="0" />
                        <TextBlock Text="{Binding Path=B}" Padding="2,0,0,0" Grid.Column="1" />
                        <TextBlock Text="{Binding Path=C}" Padding="2,0,0,0" Grid.Column="2" />
                    </Grid>
                </DataTemplate>
            </TreeView.ItemTemplate>
        </TreeView>
    </Grid>
</Window>

Comments (2)

Posted 11 years ago by Actipro Software Support - Cleveland, OH, USA
Avatar
Hi Aleksander,

We have recently fixed an issue where certain items were being rooted in memory. I believe this is what you are seeing. This fix will be in the next maintenance release scheduled for this week.


Actipro Software Support

Posted 11 years ago by Aleksander Brzozowski
Avatar
fine:-)

Best regards
The latest build of this product (v2019.1 build 0682) was released 4 days ago, which was after the last post in this thread.

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