DataTable dt = new DataTable(); dt.Columns.Add(new DataColumn(gridColumn1, typeof(bool))); I was expecting the result of

Question

Asked: May 31, 20262026-05-31T03:42:48+00:00 2026-05-31T03:42:48+00:00

DataTable dt = new DataTable();  
dt.Columns.Add(new DataColumn(gridColumn1, typeof(bool)));

I was expecting the result of the below line to include info about the DataColumns Type (bool):

?dt.Columns[0].GetType()

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Editorial Team · Answer 1 · 2026-05-31T03:42:50+00:00

Editorial Team

What you want to use is this property:

dt.Columns[0].DataType

The DataType property will set to one of the following:

Boolean
Byte
Char
DateTime
Decimal
Double
Int16
Int32
Int64
SByte
Single
String
TimeSpan
UInt16
UInt32
UInt64

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