Hi Chin,
Thank you for your interest in Syncfusion Products.
To display the panel to AutoHide mode when the form is loaded we need to call SetAutoHideMode() method in NewDockStateEndLoad event. Please refer to the below code snippets given:
[C#]
private void dockingManager1_NewDockStateEndLoad(object sender, EventArgs e)
{
this.dockingManager1.SetAutoHideMode(this.panel1, true);
}
private void button1_Click(object sender, EventArgs e)
{
if (this.dockingManager1.GetAutoHideMode(this.panel1))
this.dockingManager1.SetAutoHideMode(this.panel1, false);
else
this.dockingManager1.SetAutoHideMode(this.panel1, true);
}
Please refer to the below sample that demonstrates the same.
http://websamples.syncfusion.com/samples/F77889/main.htmPlease let me know if this helps you.
Regards,
Hema