OdbcDataReader.FieldCount Property

Reference

Definition

Namespace:: System.Data.Odbc

Assembly:: System.Data.Odbc.dll

Assembly:: System.Data.dll

Package:: System.Data.Odbc v10.0.0-preview.1.25080.5

Source:: OdbcDataReader.cs

Source:: OdbcDataReader.cs

Source:: OdbcDataReader.cs

Important

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Gets the number of columns in the current row.

public:
 virtual property int FieldCount { int get(); };

public:
 property int FieldCount { int get(); };

public override int FieldCount { get; }

public int FieldCount { get; }

member this.FieldCount : int

Public Overrides ReadOnly Property FieldCount As Integer

Public ReadOnly Property FieldCount As Integer

Property Value

Int32

When not positioned in a valid record set, 0; otherwise the number of columns in the current record. The default is -1.

Implements

FieldCount

Exceptions

NotSupportedException

There is no current connection to a data source.

Remarks

Includes hidden fields. Use VisibleFieldCount to exclude hidden fields.

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

Applies to

Produkt	Versiounen
.NET	8 (package-provided), 9 (package-provided), 10 (package-provided)
.NET Framework	1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard	2.0 (package-provided)

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