本文實(shí)例講述了asp.net實(shí)現(xiàn)調(diào)用存儲(chǔ)過程并帶返回值的方法。分享給大家供大家參考，具體如下：
/// summary>
/// DataBase 的摘要說明
/// /summary>
public class DataBase
{
/// summary>
///DataBase 的摘要說明
/// /summary>
protected static SqlConnection BaseSqlConnection = new SqlConnection();//連接對象
protected SqlCommand BaseSqlCommand = new SqlCommand(); //命令對象
public DataBase()
{
//
// TODO: 在此處添加構(gòu)造函數(shù)邏輯
//
}
protected void OpenConnection()
{
if (BaseSqlConnection.State == ConnectionState.Closed) //連接是否關(guān)閉
try
{
BaseSqlConnection.ConnectionString = ConfigurationManager.ConnectionStrings["productsunion"].ToString();
BaseSqlCommand.Connection = BaseSqlConnection;
BaseSqlConnection.Open();
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
}
public void CloseConnection()
{
if (BaseSqlConnection.State == ConnectionState.Open)
{
BaseSqlConnection.Close();
BaseSqlConnection.Dispose();
BaseSqlCommand.Dispose();
}
}
public bool Proc_Return_Int(string proc_name, params SqlParameter[] cmdParms)
{
try
{
OpenConnection();
if (cmdParms != null)
{
foreach (SqlParameter parameter in cmdParms)
{
if ((parameter.Direction == ParameterDirection.InputOutput || parameter.Direction == ParameterDirection.Input)
(parameter.Value == null))
{
parameter.Value = DBNull.Value;
}
BaseSqlCommand.Parameters.Add(parameter);
}
BaseSqlCommand.CommandType = CommandType.StoredProcedure;
BaseSqlCommand.CommandText = proc_name;
BaseSqlCommand.ExecuteNonQuery();
if (BaseSqlCommand.Parameters["Return"].Value.ToString()== "0")
{
return true;
}
else
{
return false;
}
}
else
{
return false;
}
}
catch
{
return false;
}
finally
{
BaseSqlCommand.Parameters.Clear();
CloseConnection();
}
}
}
加入了一個(gè)組合類
public class SqlModel:ISqlModel
{
#region ISqlModel 成員
public bool Proc_Return_Int(string proc_name, string[,] sArray)
{
try
{
if (sArray.GetLength(0) >= 1)
{
DataBase db = new DataBase();
SqlParameter[] sqlpar = new SqlParameter[sArray.GetLength(0)+1];//加入返回值
for (int i = 0; i sArray.GetLength(0); i++)
{
sqlpar[i] = new SqlParameter(sArray[i,0], sArray[i,1]);
}
sqlpar[sArray.GetLength(0)] = new SqlParameter("Return", SqlDbType.Int);
sqlpar[sArray.GetLength(0)].Direction = ParameterDirection.ReturnValue;
if (db.Proc_Return_Int(proc_name, sqlpar))
{
return true;
}
else
{
return false;
}
}
else
{
return false;
}
}
catch
{
return false;
}
}
#endregion
}
前臺(tái)調(diào)用
string[,] sArray = new string[3,2];
sArray[0,0]="@parent_id";
sArray[1,0]="@cn_name";
sArray[2,0]="@en_name";
sArray[0,1]="5";
sArray[1,1]="aaaab";
sArray[2,1]="cccccc";
Factory.SqlModel sm = new Factory.SqlModel();
sm.Proc_Return_Int("Product_Category_Insert", sArray);
存儲(chǔ)過程內(nèi)容
ALTER PROCEDURE [dbo].[Product_Category_Insert]
@parent_id int,
@cn_Name nvarchar(50),
@en_Name nvarchar(50)
AS
BEGIN
SET NOCOUNT ON;
DECLARE @ERR int
SET @ERR=0
BEGIN TRAN
IF @parent_id0 OR ISNULL(@cn_Name,'')=''
BEGIN
SET @ERR=1
GOTO theEnd
END
IF(NOT EXISTS(SELECT Id FROM Product_Category WHERE Id=@parent_id))
BEGIN
SET @ERR=2
GOTO theEnd
END
DECLARE @Id int,@Depth int,@ordering int
SELECT @Id=ISNULL(MAX(Id)+1,1) FROM Product_Category--計(jì)算@Id
IF @Parent_Id=0
BEGIN
SET @Depth=1--計(jì)算@Depth
SELECT @Ordering=ISNULL(MAX(Ordering)+1,1) FROM Product_Category--計(jì)算@OrderId
END
ELSE
BEGIN
SELECT @Depth=Depth+1 FROM Product_Category WHERE Id=@Parent_Id--計(jì)算@Depth,計(jì)算@Ordering時(shí)需要用到
SELECT @Ordering=MAX(Ordering)+1 FROM Product_Category--計(jì)算@Ordering
WHERE Id=@Parent_Id
UPDATE Product_Category SET Ordering=Ordering+1 WHERE Ordering>=@Ordering--向后移動(dòng)插入位置后面的所有節(jié)點(diǎn)
END
INSERT INTO Product_Category(Id,Parent_Id,cn_Name,en_name,Depth,Ordering) VALUES (@Id,@Parent_Id,@cn_Name,@en_name,@Depth,@Ordering)
IF @@ERROR>0
SET @ERR=-1
theEnd:
IF @ERR=0
BEGIN
COMMIT TRAN
RETURN 0
END
ELSE
BEGIN
ROLLBACK TRAN
RETURN @ERR
END
END
希望本文所述對大家asp.net程序設(shè)計(jì)有所幫助。
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