小编use*_*944的帖子

我正在开发一个ASP.NET应用程序,并将一个字符串值"1,2,3,4"传递给一个过程,以选择那些IN(1,2,3,4)的值,但它说"转换失败时转换varchar值'1,2,3,4'到数据类型int."

这是aspx代码:

private void fillRoles()
{
    /*Read in User Profile Data from database */
    Database db = DatabaseFactory.CreateDatabase();

    DbCommand cmd = db.GetStoredProcCommand("sp_getUserRoles");

    db.AddInParameter(cmd, "@pGroupIDs", System.Data.DbType.String);
    db.SetParameterValue(cmd, "@pGroupIDs", "1,2,3,4");

    IDataReader reader = db.ExecuteReader(cmd);

    DropDownListRole.DataTextField = "Group";
    DropDownListRole.DataValueField = "ID";

    while (reader.Read())
    {
        DropDownListRole.Items.Add((new ListItem(reader[1].ToString(), reader[0].ToString())));
    }

    reader.Close();
}

这是我的程序:

CREATE Procedure [dbo].[sp_getUserRoles](@pGroupIDs varchar(50))
AS BEGIN
   SELECT * FROM CheckList_Groups Where id in (@pGroupIDs)
END