# 2020 v1

## Content



### Chart

**Bug fixes**

*   Fixed the issue where data points do not have any changes when adding/ deleting points.
*   Fixed the issue where there was an issue with setting custom position for chart tooltip.
*   Fixed the issue where new chart series cannot be rendered if chart series are added at runtime.
*   Fixed the issue where Convert method of FlexChart Axis returns 0 for all data value.
*   Fixed the issue where GetValues method does not get called while creating custom series.
*   Fixed the issue where InvalidCastException occurred and chart series cannot appear properly when chart series are added in FlexChart.

**Breaking changes**

*   Removed C1.CollectionView (using C1.DataCollection instead).

### Core

**Bug fixes**

*   Fixed the issue where System.Reflection.TargetInvocation Exception occurred when starting up the controls on main page in application.
*   _[Xamarin.Forms for iOS\]_ Fixed the issue where Null Reference exception occurred on navigating controller while grid selection changed.
*   Fixed the issue where Null Reference exception occurred on navigating controller while grid cell tapped with cells of last row.

### FlexViewer

**Bug fixes**

*   Fixed the issue where System.ArgumentOutOfRange Exception occurs when closing document after searching text in FlexViewer.
*   Fixed the issue where pages are shown left-aligned in FlexViewer when setting 'Actual Size/Whole Page' zoom-mode.
*   _[Xamarin.Forms for iOS\]__[Xamarin.Forms for Android\]_ Fixed the issue where selection highlights do not match with search results starting form second page of document.
*   Fixed the issue where correct page is not navigated by entering page number in PageNumber-box when setting 'PageDisplayMode' more than one page.
*   Fixed the issue where images do not appear when setting 'RotateMode' property as 'Rotation90Clockwise' or 'Rotation90CounterClockwise'.
*   Fixed the issue where images are not rotated properly after navigating pages when setting 'RotateMode' property at design-time.
*   Fixed the issue where pages are cut off when setting '0' at 'left/right' values in 'Padding' property of FlexViewer.
*   Fixed the issue where System.ArgumentOutOfRange Exception occurs when closing document after searching text in FlexViewer.
*   Fixed the issue where pages are not applied with customized themes and background color is still not applied after navigating pages.

**Improvements**

*   Support Dark/Light theme based on Dark/Light OS mode.
*   Add RotationMode property.
*   Add ShowPrintDialog method
*   Add Printing Feature.
*   Add Export menu item.
*   Add Rotate left/right menu items

### Grid

**Bug fixes**

*   Fixed the issue where group rows were not updated correctly when the source observable collection changed.
*   Fixed the issue where there was a rendering issue when IsAnimated=false.
*   Fixed the issue where GetCellValue of column was returning null without binding instead of the whole DataItem.
*   Fixed the issue where Selection event raised incorrectly when loading grid.
*   _[Universal Windows Platform\] Fixed the issue where_ Setting IsAnimated = false has no effect.

**Breaking changes**

*   Cell editing finishes when expanding selection with Shift+Click.

### Input

**Bug fixes**

*   Fixed the issue where background issues on IOS when displaying in Darkmode.
*   _[Universal Windows Platform\]_ Fixed the issue where UnhandledException occurred when navigate to 'ComboBox' Page in C1Input101 Sample.
*   _[Universal Windows Platform\]_ Fixed the issue where UnhandledException occurred when navigate to 'AutoComplete' Page using DataCollection.