SqlDataReader.FieldCount Property

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Friday, January 10, 2025

System.Data.SqlClient Namespace SqlDataReader Class

Returns the number of columns in the current row.

Script	[ integer variable = ] SqlDataReader.FieldCount

variable	When not positioned in a valid recordset, 0; otherwise returns the number of columns in the current row.

The property is read only with a default value of -1.

Exception Type	Condition
NotSupportedException	Occurs when there is no current connection to an instance of SQL Server.

After executing a query that does not return rows, FieldCount returns 0.

SqlDataReader Members

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