// Sets the text of the edit part of the Combo
void IValueProvider.SetValue(string str)
{
// Ensure that the window and all its parents are enabled.
Misc.CheckEnabled(_hwnd);
// piggy-back on win32editbox proxy
NativeMethods.COMBOBOXINFO cbInfo = new NativeMethods.COMBOBOXINFO(NativeMethods.comboboxInfoSize);
if (GetComboInfo(_hwnd, ref cbInfo) && SafeNativeMethods.IsWindowVisible(cbInfo.hwndItem))
{
WindowsEditBox editBox = new WindowsEditBox(cbInfo.hwndItem, null, -1);
IValueProvider valueProvider = (IValueProvider)editBox.GetPatternProvider(ValuePattern.Pattern);
// try to set user-provided text
valueProvider.SetValue(str);
// Let the parent know that the value has change, to allow the parent to do any processing it needs
// to do on value change.
IntPtr hwndParent = Misc.GetParent(_hwnd);
if (hwndParent != IntPtr.Zero)
{
int id = Misc.GetWindowId(_hwnd);
IntPtr wParam = new IntPtr(NativeMethods.Util.MAKELONG(id, NativeMethods.CBN_EDITUPDATE));
Misc.ProxySendMessage(hwndParent, NativeMethods.WM_COMMAND, wParam, _hwnd);
}
return;
}
throw new InvalidOperationException(SR.Get(SRID.OperationCannotBePerformed));
}
internal static void SetValue(string val, IntPtr hwnd, int item)
{
// PerSharp/PreFast will flag this as warning 6507/56507: Prefer 'string.IsNullOrEmpty(val)' over checks for null and/or emptiness.
// An empty strings is valued here, while a null string is not.
// Therefore we can not use IsNullOrEmpty() here, suppress the warning.
#pragma warning suppress 6507
if (val == null)
{
throw new ArgumentNullException("val");
}
if (!WindowsListView.ListViewEditable(hwnd))
{
throw new InvalidOperationException(SR.Get(SRID.ValueReadonly));
}
Misc.SetFocus(hwnd);
// set focus to the item
WindowsListView.SetItemFocused(hwnd, item);
// retrieve edit window
IntPtr hwndEdit = WindowsListView.ListViewEditLabel(hwnd, item);
if (IntPtr.Zero == hwndEdit)
{
throw new InvalidOperationException(SR.Get(SRID.OperationCannotBePerformed));
}
// re-use editbox proxy to do the job
// Note: we will pass null and -1 for some of the parameters
// this is ok, since the only thing that matters to us is an ability to set the text
// and these parameters irrelevant for our task
WindowsEditBox editBox = new WindowsEditBox(hwndEdit, null, -1);
// get value pattern
IValueProvider valueProvider = editBox.GetPatternProvider(ValuePattern.Pattern) as IValueProvider;
// try to set user-provided text
bool setValueSucceeded = false;
try
{
valueProvider.SetValue(val);
setValueSucceeded = true;
}
finally
{
// even if there is a problem doing SetValue need to exit
// editing mode (e.g. cleanup from editing mode).
FinishEditing(setValueSucceeded, hwnd, hwndEdit);
}
// Need to give some time for the control to do all its processing.
bool wasTextSet = false;
for (int i = 0; i < 10; i++)
{
System.Threading.Thread.Sleep(1);
// Now see if the item really got set.
if (val.Equals(ListViewItem.GetText(hwnd, item, 0)))
{
wasTextSet = true;
break;
}
}
if (!wasTextSet)
{
throw new InvalidOperationException(SR.Get(SRID.OperationCannotBePerformed));
}
}
internal static void SetValue (string val, IntPtr hwnd, int item)
{
// PerSharp/PreFast will flag this as warning 6507/56507: Prefer 'string.IsNullOrEmpty(val)' over checks for null and/or emptiness.
// An empty strings is valued here, while a null string is not.
// Therefore we can not use IsNullOrEmpty() here, suppress the warning.
#pragma warning suppress 6507
if (val == null)
{
throw new ArgumentNullException ("val");
}
if (!WindowsListView.ListViewEditable (hwnd))
{
throw new InvalidOperationException(SR.Get(SRID.ValueReadonly));
}
Misc.SetFocus(hwnd);
// set focus to the item
WindowsListView.SetItemFocused (hwnd, item);
// retrieve edit window
IntPtr hwndEdit = WindowsListView.ListViewEditLabel (hwnd, item);
if (IntPtr.Zero == hwndEdit)
{
throw new InvalidOperationException(SR.Get(SRID.OperationCannotBePerformed));
}
// re-use editbox proxy to do the job
// Note: we will pass null and -1 for some of the parameters
// this is ok, since the only thing that matters to us is an ability to set the text
// and these parameters irrelevant for our task
WindowsEditBox editBox = new WindowsEditBox (hwndEdit, null, -1);
// get value pattern
IValueProvider valueProvider = editBox.GetPatternProvider (ValuePattern.Pattern) as IValueProvider;
// try to set user-provided text
bool setValueSucceeded = false;
try
{
valueProvider.SetValue (val);
setValueSucceeded = true;
}
finally
{
// even if there is a problem doing SetValue need to exit
// editing mode (e.g. cleanup from editing mode).
FinishEditing(setValueSucceeded, hwnd, hwndEdit);
}
// Need to give some time for the control to do all its processing.
bool wasTextSet = false;
for (int i = 0; i < 10; i++)
{
System.Threading.Thread.Sleep(1);
// Now see if the item really got set.
if (val.Equals(ListViewItem.GetText(hwnd, item, 0)))
{
wasTextSet = true;
break;
}
}
if (!wasTextSet)
{
throw new InvalidOperationException(SR.Get(SRID.OperationCannotBePerformed));
}
}
// Sets the text of the edit part of the Combo
void IValueProvider.SetValue (string str)
{
// Ensure that the window and all its parents are enabled.
Misc.CheckEnabled(_hwnd);
// piggy-back on win32editbox proxy
NativeMethods.COMBOBOXINFO cbInfo = new NativeMethods.COMBOBOXINFO(NativeMethods.comboboxInfoSize);
if (GetComboInfo(_hwnd, ref cbInfo) && SafeNativeMethods.IsWindowVisible(cbInfo.hwndItem))
{
WindowsEditBox editBox = new WindowsEditBox(cbInfo.hwndItem, null, -1);
IValueProvider valueProvider = (IValueProvider) editBox.GetPatternProvider (ValuePattern.Pattern);
// try to set user-provided text
valueProvider.SetValue (str);
// Let the parent know that the value has change, to allow the parent to do any processing it needs
// to do on value change.
IntPtr hwndParent = Misc.GetParent(_hwnd);
if (hwndParent != IntPtr.Zero)
{
int id = Misc.GetWindowId(_hwnd);
IntPtr wParam = new IntPtr(NativeMethods.Util.MAKELONG(id, NativeMethods.CBN_EDITUPDATE));
Misc.ProxySendMessage(hwndParent, NativeMethods.WM_COMMAND, wParam, _hwnd);
}
return;
}
throw new InvalidOperationException(SR.Get(SRID.OperationCannotBePerformed));
}