Hi,

Document attributes with type decimal or integer with 'allow nulls' checked, still raise an error if they're left empty in a document, for example the sort order of menuitems.

[ArgumentException: System.FormatException: Input string was not in a correct format.
at System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info)
at System.String.System.IConvertible.ToInt32(IFormatProvider provider)
at System.Convert.ToInt32(Object value)
at System.Data.Common.Int32Storage.Set(Int32 record, Object value)
at System.Data.DataColumn.set_Item(Int32 record, Object value)Couldn't store <> in DescriptionOrder Column. Expected type is Int32.]
System.Data.DataColumn.set_Item(Int32 record, Object value) +100
System.Data.DataRow.set_Item(DataColumn column, Object value) +278
System.Data.DataRow.set_Item(String columnName, Object value) +72
Kentico.CMS.Form.BasicForm.SetDataRow(String columnName, Object value)
Kentico.CMS.Form.BasicForm.SaveData(Object sender, EventArgs e)
System.Web.UI.WebControls.Button.OnClick(EventArgs e) +108
System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +57
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +18
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +33
System.Web.UI.Page.ProcessRequestMain() +1292