Hi Dario,
Thanks for using Syncfusion products.
Resizing of controls are based on Anchor property of a control. The controls can be resized evenly only when Anchor property is set to all AnchorStyles. Please make use of the below code.
Code Snippet
this.scheduleControl1.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
| System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
Sample Link
Please let us know, If we have misunderstood your query.
Regards,
Amal Raj U.