类型的数据集验证(c# .NET)

Im working with dataSets validation in my project. I'm doing validation when DataTable_ColumnChanged event fires in partial class of dataTable, and its doing its job, but i would like to also validate datatype mismach on dataSet level, not UI, to provide custom error message. If [someID] expects number, but someone enters string in textbox for instance.Im working with dataSets validation in my proje