Επεξεργασία

Κοινή χρήση μέσω

SqlException.State Property

  • Reference

Definition

Namespace:
System.Data.SqlClient
Assembly:
System.Data.SqlClient.dll
Assembly:
System.Data.dll
Package:
System.Data.SqlClient v4.9.0
Source:
System.Data.SqlClient.notsupported.cs

Gets a numeric error code from SQL Server that represents an error, warning or "no data found" message. For more information about how to decode these values, see Database Engine Events and Errors.

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

Property Value

Byte

The number representing the error code.

Examples

The following example displays each SqlError within the SqlErrorCollection collection.

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

Remarks

This is a wrapper for the State property of the first SqlError in the Errors property.

Applies to

See also