DataTableReader.GetFieldType(Int32) Method
Definition
Important
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Gets the Type that is the data type of the object.
public:
override Type ^ GetFieldType(int ordinal);
public override Type GetFieldType (int ordinal);
override this.GetFieldType : int -> Type
Public Overrides Function GetFieldType (ordinal As Integer) As Type
Parameters
- ordinal
- Int32
The zero-based column ordinal.
Returns
The Type that is the data type of the object.
Exceptions
The index passed was outside the range of 0 to FieldCount - 1.
An attempt was made to read or access a column in a closed DataTableReader .
Examples
Call the following procedure, passing in a DataTableReader instance in order to display a list of all the fields and the full name for each type in the Console window.
private void TestGetFieldType(DataTableReader reader)
{
for (int i = 0; i < reader.FieldCount; i++)
{
Console.WriteLine(reader.GetName(i) + ":" +
reader.GetFieldType(i).FullName);
}
}
Private Sub TestGetFieldType(ByVal reader As DataTableReader)
For i As Integer = 0 To reader.FieldCount - 1
Console.WriteLine(reader.GetName(i) & ":" & _
reader.GetFieldType(i).FullName)
Next
Console.WriteLine("Press Enter to finish.")
Console.ReadLine()
End Sub
Applies to
Σχόλια
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