TChart inside LinearLayout generates "width and height must be > 0" - xamarin.android

Question

I have just started using Steema TChart on Mono for Android. I tried this simple code and it works fine:
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
var tChart1 = new Steema.TeeChart.TChart(this);
var bar1 = new Steema.TeeChart.Styles.Bar();
tChart1.Series.Add(bar1);
bar1.Add(3, "Pears", Color.Red);
bar1.Add(4, "Apples", Color.Blue);
bar1.Add(2, "Oranges", Color.Green);
var theme = new Steema.TeeChart.Themes.BlackIsBackTheme(tChart1.Chart);
theme.Apply();
SetContentView(tChart1);
}
...but as soon as I try adding the chart into another view, like a LinearLayout I get the error "width and height must be > 0". Does anyone know how to solve this?
Here is the code that I tried (it works just fine if I only have the LinearLayout and the Button):
protected override void OnCreate(Bundle bundle)
{
base.OnCreate(bundle);
var tChart1 = new Steema.TeeChart.TChart(this);
var bar1 = new Steema.TeeChart.Styles.Bar();
tChart1.Series.Add(bar1);
bar1.Add(3, "Pears", Color.Red);
bar1.Add(4, "Apples", Color.Blue);
bar1.Add(2, "Oranges", Color.Green);
var theme = new Steema.TeeChart.Themes.BlackIsBackTheme(tChart1.Chart);
theme.Apply();
var container = new LinearLayout(this);
container.Orientation = Orientation.Vertical;
var b = new Button(this);
b.Text = "Test";
container.AddView(b);
container.AddView(tChart1);
SetContentView(container);
}
And here is the CallStack:
08-29 19:39:52.489 I/MonoDroid(24907): java.lang.IllegalArgumentException: width and height must be > 0
08-29 19:39:52.489 I/MonoDroid(24907): at android.graphics.Bitmap.createBitmap(Bitmap.java:603)
08-29 19:39:52.489 I/MonoDroid(24907): at android.graphics.Bitmap.createBitmap(Bitmap.java:585)
08-29 19:39:52.489 I/MonoDroid(24907): at steema.teechart.TChart.n_onDraw(Native Method)
08-29 19:39:52.489 I/MonoDroid(24907): at steema.teechart.TChart.onDraw(TChart.java:55)
08-29 19:39:52.489 I/MonoDroid(24907): at android.view.View.draw(View.java:11025)
08-29 19:39:52.489 I/MonoDroid(24907): at android.widget.FrameLayout.draw(FrameLayout.java:450)
08-29 19:39:52.489 I/MonoDroid(24907): at android.view.ViewGroup.drawChild(ViewGroup.java:2887)
08-29 19:39:52.489 I/MonoDroid(24907): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
08-29 19:39:52.489 I/MonoDroid(24907): at android.view.ViewGroup.drawChild(ViewGroup.java:2885)
08-29 19:39:52.489 I/MonoDroid(24907): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
08-29 19:39:52.489 I/MonoDroid(24907): at android.view.ViewGroup.drawChild(ViewGroup.java:2885)
08-29 19:39:52.489 I/MonoDroid(24907): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
08-29 19:39:52.489 I/MonoDroid(24907): at android.view.ViewGroup.drawChild(ViewGroup.java:2885)
08-29 19:39:52.489 I/MonoDroid(24907): at android.view.ViewGroup.dispatchDraw(ViewGroup.java:2489)
08-29 19:39:52.489 I/MonoDroid(24907): at android.view.View.draw(View.java:11028)
08-29 19:39:52.489 I/MonoDroid(24907): at android.widget.FrameLayout.draw(FrameLayout.java:450)
08-29 19:39:52.489 I/MonoDroid(24907): at com.android.internal.policy.impl.PhoneWindow$DecorView.draw(PhoneWindow.java:2274)
08-29 19:39:52.489 I/MonoDroid(24907): at android.view.ViewRootImpl.draw(ViewRootImpl.java:2041)
08-29 19:39:52.489 I/MonoDroid(24907): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1647)
08-29 19:39:52.489 I/MonoDroid(24907): at android.view.ViewRootImpl.handleMessage(ViewRootImpl.java:2459)
08-29 19:39:52.489 I/MonoDroid(24907): at android.os.Handler.dispatchMessage(Handler.java:99)
08-29 19:39:52.489 I/MonoDroid(24907): at android.os.Looper.loop(Looper.java:137)
08-29 19:39:52.489 I/MonoDroid(24907): at android.app.ActivityThread.main(ActivityThread.java:4514)
08-29 19:39:52.489 I/MonoDroid(24907): at java.lang.reflect.Method.invokeNative(Native Method)
08-29 19:39:52.489 I/MonoDroid(24907): at java.lang.reflect.Method.invoke(Method.java:511)
08-29 19:39:52.489 I/MonoDroid(24907): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:790)
08-29 19:39:52.489 I/MonoDroid(24907): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:557)
08-29 19:39:52.489 I/MonoDroid(24907): at dalvik.system.NativeStart.main(Native Method)

Answer 1

This is because you need to provide LayoutParams when adding the chart to your View, for example:
container.AddView(tChart1, new ViewGroup.LayoutParams(300, 400));
or:
container.AddView(tChart1, new ViewGroup.LayoutParams(ViewGroup.LayoutParams.FillParent, ViewGroup.LayoutParams.FillParent));