FieldCount Property (SQLiteDataReader)
On this page
Gets the number of columns in the current row.
Syntax
|
|---|
'Declaration
Public Overrides ReadOnly Property FieldCount As Integer |
|
|---|
public override int FieldCount {get;} |
Property Value
When not positioned in a valid record set, 0; otherwise the number of columns in the current record. The default value is -1.
Example
This sample demonstrates how to iterate through fields in a row using
FieldCount property.
|
|---|
public void FetchResults(SQLiteConnection sqConnection)
{
SQLiteCommand cmd = new SQLiteCommand("SELECT * FROM Dept");
cmd.FetchSize = 100;
cmd.Connection = sqConnection;
sqConnection.Open();
try
{
SQLiteDataReader reader = cmd.ExecuteReader();
while (reader.Read())
{
for (int i=0;i<reader.FieldCount;i++)
{
Console.Write("\t"+reader[i]);
}
Console.WriteLine();
}
}
finally
{
sqConnection.Close();
}
} |
|
|---|
Public Sub FetchResults(ByVal sqConnection As SQLiteConnection)
Dim cmd As SQLiteCommand = New SQLiteCommand("SELECT * FROM Dept")
cmd.FetchSize = 100
cmd.Connection = sqConnection
sqConnection.Open()
Try
Dim reader As SQLiteDataReader = cmd.ExecuteReader()
While reader.Read()
Dim i
For i = 0 To reader.FieldCount - 1
Console.Write(String.Concat(" ", reader(i)))
Next i
Console.WriteLine()
End While
Finally
sqConnection.Close()
End Try
End Sub |
See Also
