C# 异常存储过程参数
我有这个密码C# 异常存储过程参数,c#,sql-server,wpf,ado.net,C#,Sql Server,Wpf,Ado.net,我有这个密码 SqlConnection conn = new SqlConnection(connstring); SqlCommand cmd = new SqlCommand(); SqlDataAdapter adapter = new SqlDataAdapter(); cmd.CommandType = CommandType.StoredProcedure; cmd = new SqlCommand("s_SCT_Composition", conn); SqlParameter
SqlConnection conn = new SqlConnection(connstring);
SqlCommand cmd = new SqlCommand();
SqlDataAdapter adapter = new SqlDataAdapter();
cmd.CommandType = CommandType.StoredProcedure;
cmd = new SqlCommand("s_SCT_Composition", conn);
SqlParameter param1 = new SqlParameter("@idServ", SqlDbType.Int);
param1.Value = 1002262;
cmd.Parameters.Add(param1);
adapter.SelectCommand = cmd;
try
{
adapter.Fill(tableCompositionNomenclature);
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
DataGridNameService.ItemsSource = tableCompositionNomenclature.DefaultView;
出现以下异常
过程或函数需要未指定的参数
存储过程:
ALTER PROCEDURE [dbo].[s_SCT_Composition]
@IdServ Integer
AS
``SELECT CAST (0 as bit) as 'chk', dbo.s_Serv.NameServ as 'NameServNomenc', dbo.rs_Serv.IdServ as 'IdServ', dbo.s_serv.IdServ as 'IdServNomenc'
FROM dbo.rs_Serv INNER JOIN
dbo.rs_ServK ON dbo.rs_Serv.IdServ = dbo.rs_ServK.IdServM INNER JOIN
dbo.s_Serv ON dbo.rs_ServK.IdServN = dbo.s_Serv.IdServ
where dbo.rs_Serv.IdServ = @IdServ;
DataColumn column;
column = new DataColumn();
column.DataType = System.Type.GetType("System.Boolean");
column.ColumnName = "chk";
column.ReadOnly = false;
tableCompositionNomenclature.Columns.Add(column);
column = new DataColumn();
column.DataType = System.Type.GetType("System.String");
column.ColumnName = "IdServNomenc";
column.ReadOnly = false;
tableCompositionNomenclature.Columns.Add(column);
column = new DataColumn();
column.DataType = System.Type.GetType("System.String");
column.ColumnName = "NameServNomenc";
column.ReadOnly = true;
tableCompositionNomenclature.Columns.Add(column);
column = new DataColumn();
column.DataType = System.Type.GetType("System.String");
column.ColumnName = "IdServ";
column.ReadOnly = true;
tableCompositionNomenclature.Columns.Add(column);
//DataGridNameService.ItemsSource = tableCompositionNomenclature.DefaultView;
DataGridNameService.CanUserAddRows = false;
有什么问题吗
此方法在我的代码中创建表:
ALTER PROCEDURE [dbo].[s_SCT_Composition]
@IdServ Integer
AS
``SELECT CAST (0 as bit) as 'chk', dbo.s_Serv.NameServ as 'NameServNomenc', dbo.rs_Serv.IdServ as 'IdServ', dbo.s_serv.IdServ as 'IdServNomenc'
FROM dbo.rs_Serv INNER JOIN
dbo.rs_ServK ON dbo.rs_Serv.IdServ = dbo.rs_ServK.IdServM INNER JOIN
dbo.s_Serv ON dbo.rs_ServK.IdServN = dbo.s_Serv.IdServ
where dbo.rs_Serv.IdServ = @IdServ;
DataColumn column;
column = new DataColumn();
column.DataType = System.Type.GetType("System.Boolean");
column.ColumnName = "chk";
column.ReadOnly = false;
tableCompositionNomenclature.Columns.Add(column);
column = new DataColumn();
column.DataType = System.Type.GetType("System.String");
column.ColumnName = "IdServNomenc";
column.ReadOnly = false;
tableCompositionNomenclature.Columns.Add(column);
column = new DataColumn();
column.DataType = System.Type.GetType("System.String");
column.ColumnName = "NameServNomenc";
column.ReadOnly = true;
tableCompositionNomenclature.Columns.Add(column);
column = new DataColumn();
column.DataType = System.Type.GetType("System.String");
column.ColumnName = "IdServ";
column.ReadOnly = true;
tableCompositionNomenclature.Columns.Add(column);
//DataGridNameService.ItemsSource = tableCompositionNomenclature.DefaultView;
DataGridNameService.CanUserAddRows = false;
这是我的代码创建表,它可能是一个问题
我调试了所有代码选项始终存在,但异常仍然发生
尝试更改参数的名称,结果相同
尝试更改传递参数的类型,结果相同
尝试设置两个参数,结果相同
可能是填充方法出错,无法接收参数
SqlParameter param1=新的SqlParameter(“@idServ”,SqlDbType.Int)
在此语句中,不应在参数前面加上@
符号
另外,确保不存在区分大小写的问题。“idServ”!=“IdServ”
这将丢失第一行的效果,因为您创建了一个完整的新对象
请尝试以下方法:
cmd = new SqlCommand("s_SCT_Composition", conn);
cmd.CommandType = CommandType.StoredProcedure;
粘贴完整的异常堆栈跟踪。另外,请添加s_SCT_组合定义SQLwhere dbo.rs_Serv.IdServ=@IdServ it无助于确保sql参数不区分大小写。您正在将idServe推入IdServeI check区分大小写,它没有帮助我检查区分大小写,它没有帮助您是否也尝试删除上述语句中的
@
?我删除前缀,它没有帮助