public void OnSaveChange(SPField field, bool isNewField) { EnsureChildControls(); _lookupFieldEditor.OnSaveChange(field, isNewField); field.SetFieldAttribute("Filter", filterTextBox.Text); field.SetFieldAttribute("MaxHeight", maxHeightTextBox.Text); field.SetFieldAttribute("MaxRows", maxRowsTextBox.Text); field.SetFieldAttribute("MinLength", minLengthTextBox.Text); field.SetFieldAttribute("TitleField", titleFieldTextBox.Text); field.SetFieldAttribute("ValueField", valueFieldTextBox.Text); field.SetFieldAttribute("DescriptionFields", descriptionFieldsTextBox.Text); }