Update the .NET version to latest for trackball synchronize KB in WPF SfChart.#4

SaiyathAliFathima merged 1 commit intomasterSyncfusionExamples/How-to-synchronize-the-trackball-with-different-chart-area-in-WPF-Chart:masterfrom

Improve-trackball-synchronize-KBSyncfusionExamples/How-to-synchronize-the-trackball-with-different-chart-area-in-WPF-Chart:Improve-trackball-synchronize-KBCopy head branch name to clipboard