在数据库中：
Alter Procedure Update_MaterialTransactionsto2ForWithdrawal
@materialName varchar(50),
@staffNumber varchar(10),
@description varchar(50),
@transactionID int
As
Begin
Update Table_MaterialTransactions
set Status=2
where StaffNumber = @staffNumber
and CrossSection = @description
and SubSubCategory = @materialName
and Status = 1
and TransactionID = @transactionID
End
在数据访问层：
public static void UpdateMaterial(string staffNumber,string materialName,string description,int transaction)
{
SqlConnection connection = new SqlConnection(ConnectDatabase.ReturnConnectionString());
//I am passing connection string as the parameter
try
{
connection.Open();
SqlCommand cmd = new SqlCommand("Update_MaterialTransactionsto2ForWithdrawal", connection);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Clear();
cmd.Parameters.Add("@materialName", SqlDbType.Varchar, 50).Value = materialName;
cmd.Parameters.Add("@staffNumber", SqlDbType.Varchar, 50).Value = staffNumber;
cmd.Parameters.Add("@description", SqlDbType.Varchar, 50).Value = description;
cmd.Parameters.Add("@transactionID", SqlDbTypeInt).Value = transactionID;
int i = cmd.ExecuteNonQuery();
connection.Close();
}
catch(Exception ex)
{
connection.Close();
}
在客户端：
void btnSubmit_Click(Object sender,EventArgs e)
{
int j=0,k=0;
for(int i=0;i<transactions.Count;i++)
{
string id = "ctl00$ContentPlaceHolder1$" + i.ToString();
CheckBox chk=(CheckBox)Page.FindControl(id);
if(chk.Checked == true)
{
Objects.UpdateMaterial(staffNumbers[i].ToString(), materials[i].ToString(), descriptions[i].ToString(), Convert.ToInt32(transactions[i]));
j++;
}
else
{
Objects.DeleteTheSelectedRowOfMaterialTransaction(staffNumbers[i].ToString(), materials[i].ToString(), descriptions[i].ToString(), Convert.ToInt32(transactions[i]));
k++;
}
}
我在表中有复选框，当用户选中复选框并单击提交时，选中的框将更新数据库。
但是cmd.ExecuteNonQuery()没有执行，它返回 0 行。它没有抛出任何错误。但是，如果我在数据库中手动执行此操作，则存储过程可以正常工作。
请告诉我哪里出错了。