private void UpdateFieldVisibility(SPField field, BaseFieldInfo fieldInfo)
{
field.ShowInListSettings = !fieldInfo.IsHiddenInListSettings;
field.ShowInDisplayForm = !fieldInfo.IsHiddenInDisplayForm;
field.ShowInEditForm = !fieldInfo.IsHiddenInEditForm;
field.ShowInNewForm = !fieldInfo.IsHiddenInNewForm;
// Apply Hidden here again (even through it's already set through the schema XML),
// because otherwise updates to Hidden will not work.
if (!field.CanToggleHidden)
{
bool before = field.Hidden;
// Use reflection to get around the CanToggleHidden constraint. Keep in mind that
// there may be some unintended consequenced from hiding/showing and previously
// shown/hidden field (hence the logged warning).
Type type = field.GetType();
MethodInfo mi = type.GetMethod("SetFieldBoolValue", BindingFlags.NonPublic | BindingFlags.Instance);
mi.Invoke(field, new object[] { "CanToggleHidden", true });
field.Hidden = fieldInfo.IsHidden;
mi.Invoke(field, new object[] { "CanToggleHidden", false });
this.log.Warn(
string.Format(
CultureInfo.InvariantCulture,
"FieldHelper.EnsureField - Forced field (id={0}, name={1}) from Hidden={2} to Hidden={3} even though it should've been impossible because CanToggleHidden=false.",
field.Id,
field.InternalName,
before,
fieldInfo.IsHidden));
}
else
{
// No need to use reflection before being able to set the Hidden property
field.Hidden = fieldInfo.IsHidden;
}
}
private void UpdateFieldVisibility(SPField field, BaseFieldInfo fieldInfo)
{
field.ShowInListSettings = !fieldInfo.IsHiddenInListSettings;
field.ShowInDisplayForm = !fieldInfo.IsHiddenInDisplayForm;
field.ShowInEditForm = !fieldInfo.IsHiddenInEditForm;
field.ShowInNewForm = !fieldInfo.IsHiddenInNewForm;
// Apply Hidden here again (even through it's already set through the schema XML),
// because otherwise updates to Hidden will not work.
if (!field.CanToggleHidden)
{
bool before = field.Hidden;
// Use reflection to get around the CanToggleHidden constraint. Keep in mind that
// there may be some unintended consequenced from hiding/showing and previously
// shown/hidden field (hence the logged warning).
Type type = field.GetType();
MethodInfo mi = type.GetMethod("SetFieldBoolValue", BindingFlags.NonPublic | BindingFlags.Instance);
mi.Invoke(field, new object[] { "CanToggleHidden", true });
field.Hidden = fieldInfo.IsHidden;
mi.Invoke(field, new object[] { "CanToggleHidden", false });
this.log.Warn(
string.Format(
CultureInfo.InvariantCulture,
"FieldHelper.EnsureField - Forced field (id={0}, name={1}) from Hidden={2} to Hidden={3} even though it should've been impossible because CanToggleHidden=false.",
field.Id,
field.InternalName,
before,
fieldInfo.IsHidden));
}
else
{
// No need to use reflection before being able to set the Hidden property
field.Hidden = fieldInfo.IsHidden;
}
}
/// <summary>
/// Runs the specified command.
/// </summary>
/// <param name="command">The command.</param>
/// <param name="keyValues">The key values.</param>
/// <param name="output">The output.</param>
/// <returns></returns>
public override int Execute(string command, StringDictionary keyValues, out string output)
{
output = string.Empty;
SPBinaryParameterValidator.Validate("fielddisplayname", Params["fielddisplayname"].Value, "fieldinternalname", Params["fieldinternalname"].Value);
string url = Params["url"].Value;
string fieldTitle = Params["fielddisplayname"].Value;
string fieldName = Params["fieldinternalname"].Value;
bool useTitle = Params["fielddisplayname"].UserTypedIn;
bool useName = Params["fieldinternalname"].UserTypedIn;
bool force = Params["force"].UserTypedIn;
SPField field = Utilities.GetField(url, fieldName, fieldTitle, useName, useTitle);
if (field.ReadOnlyField && force)
{
field.ReadOnlyField = false;
field.Update();
}
if (!field.CanBeDeleted)
{
if (field.FromBaseType)
{
throw new Exception(
"The field is derived from a base type and cannot be deleted. You must delete the field from the base type.");
}
else if (field.Sealed)
{
if (force)
{
field.Sealed = false;
field.Update();
}
else
{
throw new Exception("This field is sealed and cannot be deleted - specify \"-force\" to ignore this setting and attempt deletion regardless.");
}
}
else if (field.AllowDeletion.HasValue && !field.AllowDeletion.Value && !force)
{
throw new Exception(
"Field is marked as not allowing deletion - specify \"-force\" to ignore this setting and attempt deletion regardless.");
}
else if (field.AllowDeletion.HasValue && !field.AllowDeletion.Value && force)
{
field.AllowDeletion = true;
field.Update();
}
else
{
throw new Exception("Field cannot be deleted.");
}
}
if (field.Hidden)
{
if (force)
{
if (field.CanToggleHidden)
{
field.Hidden = false;
field.Update();
}
else
{
MethodInfo setFieldBoolValue = field.GetType().GetMethod("SetFieldBoolValue",
BindingFlags.NonPublic | BindingFlags.Public |
BindingFlags.Instance | BindingFlags.InvokeMethod,
null, new Type[] { typeof(string), typeof(bool) }, null);
//field.SetFieldBoolValue("Hidden", false);
setFieldBoolValue.Invoke(field, new object[] { "Hidden", false });
//field.SetFieldBoolValue("CanToggleHidden", true);
setFieldBoolValue.Invoke(field, new object[] { "CanToggleHidden", true });
field.Update();
}
}
else
{
throw new Exception(
"You cannot delete hidden fields - specify \"-force\" to ignore this restriction and attempt deletion regardless.");
}
}
field.Delete();
return((int)ErrorCodes.NoError);
}
