protected void unbindCustomField()
{
targetCustomField.FieldDefinition.Label = targetCustomField.FieldDefinition.PortalPrompt = tbFieldLabel.Text;
targetCustomField.FieldDefinition.DataType =
(FieldDataType)Enum.Parse(typeof(FieldDataType), ddlDataType.SelectedValue);
targetCustomField.FieldDefinition.DisplayType =
(FieldDisplayType)Enum.Parse(typeof(FieldDisplayType), ddlDisplayType.SelectedValue);
targetCustomField.Name = string.IsNullOrWhiteSpace(tbApiName.Text)
? Formats.GetSafeFieldName(tbFieldLabel.Text)
: tbApiName.Text;
targetCustomField.FieldDefinition.IsRequired = chkRequired.Checked;
targetCustomField.FieldDefinition.DefaultValue = tbDefaultValue.Text;
targetCustomField.FieldDefinition.PickListEntries = FieldMetadata.Parse(tbAcceptableValues.Text);
targetCustomField.FieldDefinition.LookupTableID = ddlLookupTables.SelectedValue == "0" ? null : ddlLookupTables.SelectedValue;
targetCustomField.FieldDefinition.ReferenceType = ddlReferenceType.SelectedValue;
targetCustomField.DisplayOrder = int.Parse(tbDisplayOrder.Text);
targetCustomField.FieldDefinition.IsRequiredInPortal = chkRequiredInPortal.Checked;
targetCustomField.FieldDefinition.HelpText = tbHelpText.Text;
}