[]
DetectionScheme is a connection string property. It allows users to specify their preferred data type detection scheme when the source is a local file.
This property can be defined as a simple, case-insensitive string, for example:
string conString = @'detectionscheme=RowScan'
Or as an Enum with two possible values:
1. Means that every column will be returned as the best suitable data type for the section of the table read, which by default is 500 rows.
builder.DetectionScheme = DetectionSchemeType.RowScan;
2. Means that every column data type will be returned as the default value which is a string.
builder.DetectionScheme = DetectionSchemeType.None;