CODEWITHSUNDEEP
c#wpf
Ehsan Akbar
Ehsan Akbar

Reputation: 7299

Draw lines using wpf doesn't work using codebehind

I am so new in WPF ,i am trying to draw a map using WPF so i fetch the points from database as you can see here :

   lstSensorLeft = objSensorRepository.FindBy(i => i.Path.LineId == 1 && i.Direction == "Left").OrderBy(i => i.Order).ToList();
            PointCollection obj = new PointCollection();

            foreach (Sensor point in lstSensorLeft)
            {
                Point aaa=new Point();
                aaa.X = point.XLocation;
                aaa.Y = point.YLocation;
            }
            Lines.Points = obj;

In Xaml part i have this code :

 <Grid>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="500*"/>
            <ColumnDefinition Width="93*"/>
        </Grid.ColumnDefinitions>
        <Polyline  Stroke="Blue" StrokeThickness="2" Name="Lines" Grid.ColumnSpan="2"/>
        <Button Content="Button" HorizontalAlignment="Left" Margin="74,283,0,0" VerticalAlignment="Top" Width="75" Click="Button_Click_2"/>
    </Grid>

But the lines don't appear.

Upvotes: 0

Views: 186

Answers (1)

user128300
user128300

Reputation:

Inside your foreach loop, you do not add the new point to the collection. E.g. something like this is missing:

obj.Add(aaa);

Upvotes: 1

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