qwerty/Cafe11/workers.xaml

<Window x:Class="Cafe11.workers"
        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:Cafe11"
        mc:Ignorable="d"
        Title="workers" Height="450" Width="800" Loaded="Window_Loaded">
    <Grid>
        <DataGrid x:Name="tabl" HorizontalAlignment="Left" Width="564" Margin="0,0,0,68">
        </DataGrid>
        <Button x:Name="btninsert" Content="insert" HorizontalAlignment="Left" VerticalAlignment="Top" Width="75" Margin="581,287,0,0" Click="btninsert_Click"/>
        <Button x:Name="btndel" Content="delete" HorizontalAlignment="Left" VerticalAlignment="Top" Width="75" Margin="581,333,0,0" Click="btndel_Click"/>
        <Button x:Name="btnupdate" Content="update" HorizontalAlignment="Left" VerticalAlignment="Top" Width="75" Margin="581,374,0,0" Click="btnupdate_Click"/>
        <TextBox x:Name="txtid" HorizontalAlignment="Left" Height="23" TextWrapping="Wrap" Text="TextBox" VerticalAlignment="Top" Width="120" Margin="613,39,0,0"/>
        <TextBox x:Name="txtlogin" HorizontalAlignment="Left" Height="23" TextWrapping="Wrap" Text="TextBox" VerticalAlignment="Top" Width="120" Margin="613,67,0,0"/>
        <TextBox x:Name="txtlast" HorizontalAlignment="Left" Height="23" TextWrapping="Wrap" Text="TextBox" VerticalAlignment="Top" Width="120" Margin="613,95,0,0"/>
        <TextBox x:Name="txtfirst" HorizontalAlignment="Left" Height="23" TextWrapping="Wrap" Text="TextBox" VerticalAlignment="Top" Width="120" Margin="613,123,0,0"/>
        <TextBox x:Name="txtmiddle" HorizontalAlignment="Left" Height="23" TextWrapping="Wrap" Text="TextBox" VerticalAlignment="Top" Width="120" Margin="613,151,0,0"/>
        <ComboBox x:Name="txtrole" HorizontalAlignment="Left" VerticalAlignment="Top" Width="120" Margin="613,179,0,0">
            <ComboBoxItem Content="1" HorizontalAlignment="Left" Width="118.4"/>
            <ComboBoxItem Content="2" HorizontalAlignment="Left" Width="118.4"/>
            <ComboBoxItem Content="3" HorizontalAlignment="Left" Width="118.4"/>
        </ComboBox>
        <TextBox x:Name="txtpassword" HorizontalAlignment="Left" Height="23" TextWrapping="Wrap" Text="TextBox" VerticalAlignment="Top" Width="120" Margin="613,206,0,0"/>
        <ComboBox x:Name="txtstatus" HorizontalAlignment="Left" VerticalAlignment="Top" Width="120" Margin="613,234,0,0">
            <ComboBoxItem Content="1" HorizontalAlignment="Left" Width="118.4"/>
            <ComboBoxItem Content="2" HorizontalAlignment="Left" Width="118.4"/>
        </ComboBox>

    </Grid>
</Window>