Språk

SqlException.State Egenskap

Definition

Namnområde:
System.Data.SqlClient
Sammansättning:
System.Data.SqlClient.dll
Sammansättning:
System.Data.dll
Källa:
System.Data.SqlClient.notsupported.cs

Hämtar en numerisk felkod från SQL Server som representerar ett meddelande om fel, varning eller "inga data hittades". Mer information om hur du avkodar dessa värden finns i Database Engine Händelser och fel.

public:
 property System::Byte State { System::Byte get(); };
public byte State { get; }
member this.State : byte
Public ReadOnly Property State As Byte

Egenskapsvärde

Byte

Talet som representerar felkoden.

Exempel

I följande exempel visas var och en SqlError i SqlErrorCollection samlingen.

using System;
using System.Data;
using System.Data.SqlClient;
using System.Text;

class Program
{
    static void Main()
    {
        string s = GetConnectionString();
        ShowSqlException(s);
        Console.ReadLine();
    }

    public static void ShowSqlException(string connectionString)
    {
        string queryString = "EXECUTE NonExistantStoredProcedure";
        StringBuilder errorMessages = new StringBuilder();

        using (SqlConnection connection = new SqlConnection(connectionString))
        {
            SqlCommand command = new SqlCommand(queryString, connection);
            try
            {
                command.Connection.Open();
                command.ExecuteNonQuery();
            }
            catch (SqlException ex)
            {
                for (int i = 0; i < ex.Errors.Count; i++)
                {
                    errorMessages.Append("Index #" + i + "\n" +
                        "Message: " + ex.Errors[i].Message + "\n" +
                        "Error Number: " + ex.Errors[i].Number + "\n" +
                        "LineNumber: " + ex.Errors[i].LineNumber + "\n" +
                        "Source: " + ex.Errors[i].Source + "\n" +
                        "Procedure: " + ex.Errors[i].Procedure + "\n");
                }
                Console.WriteLine(errorMessages.ToString());
            }
        }
    }

    static private string GetConnectionString()
    {
        // To avoid storing the connection string in your code,
        // you can retrieve it from a configuration file.
        return "Data Source=(local);Initial Catalog=AdventureWorks;"
            + "Integrated Security=SSPI";
    }
}

Public Sub ShowSqlException(ByVal connectionString As String)
    Dim queryString As String = "EXECUTE NonExistantStoredProcedure"
    Dim errorMessages As New StringBuilder()

    Using connection As New SqlConnection(connectionString)
        Dim command As New SqlCommand(queryString, connection)

        Try
            command.Connection.Open()
            command.ExecuteNonQuery()

        Catch ex As SqlException
            Dim i As Integer
            For i = 0 To ex.Errors.Count - 1
                errorMessages.Append("Index #" & i.ToString() & ControlChars.NewLine _
                    & "Message: " & ex.Errors(i).Message & ControlChars.NewLine _
                    & "Error Number: " & ex.Errors(i).Number & ControlChars.NewLine _
                    & "LineNumber: " & ex.Errors(i).LineNumber & ControlChars.NewLine _
                    & "Source: " & ex.Errors(i).Source & ControlChars.NewLine _
                    & "Procedure: " & ex.Errors(i).Procedure & ControlChars.NewLine)
            Next i
            Console.WriteLine(errorMessages.ToString())
        End Try
    End Using
End Sub

Kommentarer

Det här är en omslutning för egenskapen State för den första SqlError i Errors egenskapen.

Gäller för

Se även