private void DepersistControl()
{
this.Freeze(true);
if (this.ocxState == null)
{
if (this.instance is System.Windows.Forms.UnsafeNativeMethods.IPersistStreamInit)
{
this.iPersistStreamInit = (System.Windows.Forms.UnsafeNativeMethods.IPersistStreamInit) this.instance;
try
{
this.storageType = 1;
this.iPersistStreamInit.InitNew();
}
catch (Exception)
{
}
return;
}
if (this.instance is System.Windows.Forms.UnsafeNativeMethods.IPersistStream)
{
this.storageType = 0;
this.iPersistStream = (System.Windows.Forms.UnsafeNativeMethods.IPersistStream) this.instance;
return;
}
if (this.instance is System.Windows.Forms.UnsafeNativeMethods.IPersistStorage)
{
this.storageType = 2;
this.ocxState = new State(this);
this.iPersistStorage = (System.Windows.Forms.UnsafeNativeMethods.IPersistStorage) this.instance;
try
{
this.iPersistStorage.InitNew(this.ocxState.GetStorage());
}
catch (Exception)
{
}
return;
}
if (this.instance is System.Windows.Forms.UnsafeNativeMethods.IPersistPropertyBag)
{
this.iPersistPropBag = (System.Windows.Forms.UnsafeNativeMethods.IPersistPropertyBag) this.instance;
try
{
this.iPersistPropBag.InitNew();
}
catch (Exception)
{
}
}
throw new InvalidOperationException(System.Windows.Forms.SR.GetString("UnableToInitComponent"));
}
switch (this.ocxState.Type)
{
case 0:
try
{
this.iPersistStream = (System.Windows.Forms.UnsafeNativeMethods.IPersistStream) this.instance;
this.DepersistFromIStream(this.ocxState.GetStream());
}
catch (Exception)
{
}
break;
case 1:
if (this.instance is System.Windows.Forms.UnsafeNativeMethods.IPersistStreamInit)
{
try
{
this.iPersistStreamInit = (System.Windows.Forms.UnsafeNativeMethods.IPersistStreamInit) this.instance;
this.DepersistFromIStreamInit(this.ocxState.GetStream());
}
catch (Exception)
{
}
this.GetControlEnabled();
break;
}
this.ocxState.Type = 0;
this.DepersistControl();
return;
case 2:
try
{
this.iPersistStorage = (System.Windows.Forms.UnsafeNativeMethods.IPersistStorage) this.instance;
this.DepersistFromIStorage(this.ocxState.GetStorage());
}
catch (Exception)
{
}
break;
default:
throw new InvalidOperationException(System.Windows.Forms.SR.GetString("UnableToInitComponent"));
}
if (this.ocxState.GetPropBag() != null)
{
try
{
this.iPersistPropBag = (System.Windows.Forms.UnsafeNativeMethods.IPersistPropertyBag) this.instance;
this.DepersistFromIPropertyBag(this.ocxState.GetPropBag());
}
catch (Exception)
{
}
}
}
private void ReleaseAxControl()
{
this.NoComponentChangeEvents++;
ContainerControl containingControl = this.ContainingControl;
if (containingControl != null)
{
containingControl.VisibleChanged -= this.onContainerVisibleChanged;
}
try
{
if (this.instance != null)
{
Marshal.FinalReleaseComObject(this.instance);
this.instance = null;
this.iOleInPlaceObject = null;
this.iOleObject = null;
this.iOleControl = null;
this.iOleInPlaceActiveObject = null;
this.iOleInPlaceActiveObjectExternal = null;
this.iPerPropertyBrowsing = null;
this.iCategorizeProperties = null;
this.iPersistStream = null;
this.iPersistStreamInit = null;
this.iPersistStorage = null;
}
this.axState[checkedIppb] = false;
this.axState[checkedCP] = false;
this.axState[disposed] = true;
this.freezeCount = 0;
this.axState[sinkAttached] = false;
this.wndprocAddr = IntPtr.Zero;
this.SetOcState(0);
}
finally
{
this.NoComponentChangeEvents--;
}
}
