[英]system.data.sqlclient.sqlException on ExecuteNonQuery()
我正在嘗試使用此方法在我的診所管理項目中將新患者添加到我的數據庫中:
public void create_Patient()
{
SqlCommand c = new SqlCommand();
c.CommandText = "EXECUTE SP_add_patient @ownerID, @ownername, @petname, @animaltype, @animalbirthyear, @owneradress, @ownerphone";
c.Parameters.AddWithValue("@ownerID", this.ownerID.ToString());
c.Parameters.AddWithValue("@ownername", this.ownername.ToString());
c.Parameters.AddWithValue("@petname", this.petname.ToString());
c.Parameters.AddWithValue("@animaltype", this.animalType.ToString());
c.Parameters.AddWithValue("@animalbirthyear", this.animalBirthYear.ToString());
c.Parameters.AddWithValue("@owneradress", this.ownerAddress.ToString());
c.Parameters.AddWithValue("@ownerphone", this.ownerPhone.ToString());
c.Parameters.AddWithValue("@owneremail", this.ownerEmail.ToString());
SQL_CON SC = new SQL_CON();
SC.execute_non_query(c);
}
我正在使用存儲過程:
CREATE PROCEDURE dbo.SP_add_patient
@ownerID varchar(100)
, @ownername varchar(100)
, @petname varchar(100)
, @animaltype varchar(100)
, @animalbirthyear int
, @owneradress varchar(100)
, @ownerphone varchar(100)
, @owneremail varchar(100) AS
INSERT INTO dbo.patientValues (@ownerID
,@ownername
,@petname
,@animaltype
,@animalbirthyear
,@owneradress
,@ownerphone
,@owneremail);
在execute_non_query(c)
我使用ExecuteNonQuery()
:
public void execute_non_query(SqlCommand cmd)
{
try
{
// open a connection object
this.conn.Open();
cmd.Connection = conn;
cmd.ExecuteNonQuery();
}
catch (Exception ex)
{
MessageBox.Show("error", MessageBoxButtons.OK);
}
finally
{
if (conn != null)
{
conn.Close();
}
}
}
當我到達ExecuteNonQuery()
時,出現異常:
system.data.sqlclient.sqlException 異常。
我尋找解決方案並嘗試更改身份規范,但主鍵類型是varchar
,我無法將其更改為數字類型(主鍵必須是名稱)。
我該如何解決?
你這里有一個錯誤:
catch (Exception ex)
{
MessageBox.Show("error", MessageBoxButtons.OK);
}
應該是這樣的:
catch (Exception ex)
{
MessageBox.Show(ex.Message, MessageBoxButtons.OK);
}
您可以嘗試如下,
try
{
SqlTransaction trx = null;
connection = new SqlConnection(connectionString);
connection.Open();
trx = connection.BeginTransaction();
SqlCommand c = new SqlCommand("[dbo].[SP_add_patient]", connection, trx);
c.CommandType = CommandType.StoredProcedure;
c.Parameters.AddWithValue(""@ownerID", this.ownerID.ToString());
c.ExecuteNonQuery();
trx.Commit();
connection.Close();
}
catch (SqlException e)
{
}
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