Steema Central

Posted: **Wed Mar 06, 2019 11:48 am**

Currently we are having an issue with a Gantt chart in our Xamarin.Android and Xamarin.iOS application.
We recently upgraded our TeeChart dlls from version 4.15.07.01 to 4.2018.10.3 to fix a crash occurring on newer Android and iOS versions. This is a 3 year version leap, so with it came the expected visual changes and issues.

In the 2015 version our gantt chart it looked like this:

: old_img.png (48.89 KiB) Viewed 15408 times

Using the 2018 TeeChart build it looks like this:

: new_img.PNG (21.47 KiB) Viewed 15407 times

While the marks, bottom axis looks mostly the same and works fine, the borders and grid lines are missing.

I managed to restore the grid lines using:

Code: Select all

tChart.Axes.Bottom.Grid.DrawEvery = 1;
tChart.Axes.Bottom.Grid.Visible = true;

However, I cannot seem to restore the black border around the chart. I've tried the Wall properties, the Panel.BorderPen properties etc. but to no avail.
Is there any way to re-create such a border in v2018?

I've added a test app to this post with an example chart showcasing this issue.

Posted: **Thu Mar 07, 2019 6:10 pm**

Hello,

However, I cannot seem to restore the black border around the chart. I've tried the Wall properties, the Panel.BorderPen properties etc. but to no avail.
Is there any way to re-create such a border in v2018?

sure, to bring this default look to previous versions you can use a single line:

Code: Select all

tChart.CurrentTheme = ThemeType.Opera;

Posted: **Fri Mar 08, 2019 2:05 pm**

Thank you very much for the response. While this did revert the style the right and top borders still seem to be missing.
Changing the wall/border settings on the chart doesn't seem to make them appear or change.

: newimg_teechart.PNG (72.45 KiB) Viewed 15377 times

What could be the cause of this?

Posted: **Mon Mar 11, 2019 9:11 am**

Hello,

ok, I think that back wall still invisible. Adding the following lines of code should make the change :

Code: Select all

			tChart.Walls.Back.Transparent = false;
			tChart.Walls.Back.Pen.Visible = true;
			tChart.Walls.Back.Visible = true;

Posted: **Mon Mar 11, 2019 12:40 pm**

Restoring the back wall resolved the issue. Thank you very much for your help!

Steema Central

Border in Gantt Chart

Border in Gantt Chart

Re: Border in Gantt Chart

Re: Border in Gantt Chart

Re: Border in Gantt Chart

Re: Border in Gantt Chart