DbDataReader.GetDataTypeName(Int32) Method

Reference

Definition

Namespace:: System.Data.Common

Assembly:: System.Data.Common.dll

Assembly:: System.Data.dll

Assembly:: netstandard.dll

Source:: DbDataReader.cs

Source:: DbDataReader.cs

Source:: DbDataReader.cs

Important

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When overridden in a derived class, gets name of the data type of the specified column.

public:
 abstract System::String ^ GetDataTypeName(int ordinal);

public abstract string GetDataTypeName (int ordinal);

abstract member GetDataTypeName : int -> string

Public MustOverride Function GetDataTypeName (ordinal As Integer) As String

Parameters

ordinal: Int32

The zero-based column ordinal.

Returns

String

The name of the data type.

Implements

GetDataTypeName(Int32)

Exceptions

IndexOutOfRangeException

The column index is out of range.

Remarks

private static void GetDataTypes(String connectionString)
{
    using (SqlConnection conn = new SqlConnection(connectionString))
    {
        String queryString = "Select [CourseID],[Title],[Credits] from [MySchool].[dbo].[Course]";
        using (DbCommand command = new SqlCommand(queryString, conn))
        {
            conn.Open();
            using (DbDataReader reader = command.ExecuteReader())
            {
                for (Int32 i = 0; i < reader.FieldCount; i++)
                {
                    Console.WriteLine("ColumnName:{0,-15}DataType:{1,-15}",reader.GetName(i),reader.GetDataTypeName(i));
                }
            }
        }
    }
}

Applies to

Dela via