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IDataRecord.FieldCount Property

Gets the number of columns in the current row.

Namespace:  System.Data
Assembly:  System.Data (in System.Data.dll)

int FieldCount { get; }

Property Value

Type: System.Int32
When not positioned in a valid recordset, 0; otherwise, the number of columns in the current record. The default is -1.

After executing a query that does not return rows (for example, using the ExecuteNonQuery method), FieldCount returns -1.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0, 2.0, 1.0
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