olep/WPF Entity Examole/MainWindow.xaml

<Window x:Class="WPF_Entity_Examole.MainWindow"
        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:WPF_Entity_Examole"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800">
    <Grid>
        <DataGrid x:Name="dgogrenci" HorizontalAlignment="Left" Height="235" Margin="41,49,0,0"  AutoGenerateColumns="False"  VerticalAlignment="Top" Width="423" Loaded="Dgogrenci_Loaded" >
            <DataGrid.Columns>
                <DataGridTextColumn Binding="{Binding IdCall}" Header="ID" Width="*"/>
                <DataGridTextColumn Binding="{Binding DateCall}" Header="DateCall" Width="3*"/>
                <DataGridTextColumn Binding="{Binding LongCall}" Header="LongCall" Width="3*"/>
                <DataGridTextColumn Binding="{Binding IdUser}" Header="IdUser" Width="3*"/>
                <DataGridTextColumn Binding="{Binding IdLead}" Header="IdLead" Width="3*"/>
            </DataGrid.Columns>
        </DataGrid>
        <TextBox x:Name="txtId" HorizontalAlignment="Left" Height="23" Margin="577,59,0,0" TextWrapping="Wrap"  VerticalAlignment="Top" Width="120" Foreground="White" BorderBrush="White" SelectionBrush="{x:Null}">
            <TextBox.Background>
                <RadialGradientBrush>
                    <GradientStop Color="Black"/>
                    <GradientStop Color="White" Offset="1"/>
                </RadialGradientBrush>
            </TextBox.Background>
        </TextBox>
        <TextBox x:Name="txtFirst" HorizontalAlignment="Left" Height="23" Margin="577,91,0,0" TextWrapping="Wrap"  VerticalAlignment="Top" Width="120">
            <TextBox.Background>
                <RadialGradientBrush>
                    <GradientStop Color="Black"/>
                    <GradientStop Color="White" Offset="1"/>
                </RadialGradientBrush>
            </TextBox.Background>
        </TextBox>
        <TextBox x:Name="txtLast" HorizontalAlignment="Left" Height="23" Margin="577,125,0,0" TextWrapping="Wrap"  VerticalAlignment="Top" Width="120">
            <TextBox.Background>
                <RadialGradientBrush>
                    <GradientStop Color="Black" Offset="0"/>
                    <GradientStop Color="White" Offset="1"/>
                </RadialGradientBrush>
            </TextBox.Background>
        </TextBox>
        <Button x:Name="InsertClick" Content="Insert" HorizontalAlignment="Left" Margin="594,214,0,0" VerticalAlignment="Top" Width="75" Click="InsertClick_Click" >
            <Button.Background>
                <RadialGradientBrush>
                    <GradientStop Color="Black" Offset="1"/>
                    <GradientStop Color="White"/>
                </RadialGradientBrush>
            </Button.Background>
        </Button>
        <Button x:Name="DeleteClick" Content="Delete" HorizontalAlignment="Left" Margin="594,239,0,0" VerticalAlignment="Top" Width="75" Click="DeleteClick_Click" >
            <Button.Background>
                <RadialGradientBrush>
                    <GradientStop Color="Black" Offset="1"/>
                    <GradientStop Color="White"/>
                </RadialGradientBrush>
            </Button.Background>
        </Button>
        <Button x:Name="UpdateClick" Content="Update" HorizontalAlignment="Left" Margin="594,264,0,0" VerticalAlignment="Top" Width="75" Click="UpdateClick_Click" >
            <Button.Background>
                <RadialGradientBrush>
                    <GradientStop Color="Black" Offset="1"/>
                    <GradientStop Color="White"/>
                </RadialGradientBrush>
            </Button.Background>
        </Button>
        <Label x:Name="label" Content="ID" HorizontalAlignment="Left" Margin="496,57,0,0" VerticalAlignment="Top"/>
        <Label x:Name="label1" Content="DataCall" HorizontalAlignment="Left" Margin="496,93,0,0" VerticalAlignment="Top"/>
        <Label x:Name="label2" Content="LongCall" HorizontalAlignment="Left" Margin="496,126,0,0" VerticalAlignment="Top"/>
        <TextBox x:Name="txtUser" HorizontalAlignment="Left" Height="23" Margin="577,153,0,0" TextWrapping="Wrap"  VerticalAlignment="Top" Width="120">
            <TextBox.Background>
                <RadialGradientBrush>
                    <GradientStop Color="Black" Offset="0"/>
                    <GradientStop Color="White" Offset="1"/>
                </RadialGradientBrush>
            </TextBox.Background>
        </TextBox>
        <TextBox x:Name="txtLead" HorizontalAlignment="Left" Height="23" Margin="577,186,0,0" TextWrapping="Wrap"  VerticalAlignment="Top" Width="120">
            <TextBox.Background>
                <RadialGradientBrush>
                    <GradientStop Color="Black" Offset="0"/>
                    <GradientStop Color="White" Offset="1"/>
                </RadialGradientBrush>
            </TextBox.Background>
        </TextBox>
        <Label x:Name="label2_Copy" Content="IdUser" HorizontalAlignment="Left" Margin="496,150,0,0" VerticalAlignment="Top" RenderTransformOrigin="1.126,0.785"/>
        <Label x:Name="label2_Copy1" Content="IdLead" HorizontalAlignment="Left" Margin="496,181,0,0" VerticalAlignment="Top"/>

    </Grid>
</Window>