datetime passing to reportviewer

I got an error:

The string was not recognized as a valid DateTi开发者_如何转开发me. There is a unknown word starting at index 0

Ron, you have to parse the data since it's of type nvarchar.

For example:

DataTable dt = GetData();

DateTime startDate;

DateTime.TryParse(dt.Rows[0]["StartDate"].ToString(), out startDate);