RURagavee U S Syncfusion Team February 7, 2017 06:38 AM UTC
Thanks for contacting Syncfusion support.
We are able to reproduce the reported issue at our end in the following scenario i.e., if the column value is null for the first record of the Grid dataSource.
The Grid can get the column’s data type from the first record of data source by default. When you bind the empty data source, Grid cannot find the actual data type of a column. In this case, you have to set the data type of the column explicitly.
We have already discussed the same in following knowledge base document.