[英]Getting data from xml and inserting into existing table using stored procedure and c#
public int UpdatePlantContacts(int PlantID, List<string> PlantContacts)
{
int i = 0;
DataTable dt = new DataTable("PlantAreaContact");
dt.Columns.Add("PlantAreaID",System.Type.GetType("System.Int"));
dt.Columns.Add("PlantAreaContact", System.Type.GetType("System.String"));
dt.Columns.Add("IsAreaHead", Type.GetType("System.Boolean"));
dt.Columns.Add("AreaEmailID", Type.GetType("System.String"));
dt.Columns.Add("LoginPassword", Type.GetType("System.String"));
dt.Columns.Add("SystemPermission", Type.GetType("System.String"));
foreach (DataRow dr in dt.Rows )
{
DataRow newRow = dt.NewRow();
dt.Rows.Add("~/XmlData/PlantAreaContacts");
}
StringWriter XMLWriter = new StringWriter();
dt.WriteXml(XMLWriter);
System.Xml.Linq.XElement XMLUncertanity = System.Xml.Linq.XElement.Parse(XMLWriter.ToString());
try
{
i = plcon.UpdatePlantContacts(PlantID, dt);
}
catch
{
throw new System.NotImplementedException();
}
if (i <= 0)
{
return 0;
}
else
{
return i;
}
}
這是我的BAL代碼,我在vs2010中的文件夾中有xmldata,我想在其中插入數據,然后使用存儲的proc插入xml數據,以下是我的DAL
public int UpdatePlantContacts(int PlantID, DataTable PlantContacts)
{
try
{
int result = -1;
sqlcmd = fnProcedure("sp_UpdatePlantAreaContacts");
SqlParameter par1 = sqlcmd.Parameters.Add("@PlantAreaID", SqlDbType.Int);
par1.Value = PlantID;
SqlParameter par2 = sqlcmd.Parameters.Add("@EmployeeID", SqlDbType.Int);
par2.Value = 1015;
//SqlParameter par3 = sqlcmd.Parameters.Add("@FilePath", SqlDbType.VarChar);
//par3.Value = "E:/QONE/P218/ENG/PlantAreaContactsXML.xml";
SqlParameter par4 = sqlcmd.Parameters.Add("@Return", SqlDbType.Int);
par4.Direction = ParameterDirection.Output;
try
{
fnOpen();
sqlcmd.ExecuteNonQuery();
result = Convert.ToInt32(sqlcmd.Parameters["@Return"].Value);
fnClose();
}
catch (Exception)
{
fnClose();
result = -1; ;
}
return result;
//Conn.Close();
//Conn.Dispose();
}
catch (Exception Ex)
{
CreateErrorLog Err = new CreateErrorLog();
Err.ErrorLog(HttpContext.Current.Server.MapPath("Logs/ErrorLog"), Ex.Message);
throw new System.NotImplementedException();
}
finally
{
}
}
而且我存儲的過程在ALTER PROCEDURE [dbo]下。[SP_PlantcontactUpdate] @PlantAreaID int,@ Doc XML
AS
BEGIN
IF OBJECT_ID('tempdb..##temp') IS NOT NULL
DROP TABLE ##temp
select *
into ##temp from dbo.PlantAreaContact where PlantAreaID= @PlantAreaID
begin try
delete from dbo.PlantAreaContact where PlantAreaID= @PlantAreaID
DECLARE @idoc int
EXEC sp_xml_preparedocument @idoc OUTPUT, @doc
-- Execute a SELECT statement that uses the OPENXML rowset provider.
insert into dbo.PlantAreaContact
SELECT @PlantAreaID, *
FROM OPENXML (@idoc, '/DocumentElement/PlantAreaContacts',2)
WITH (PlantAreaContact varchar(50),IsAreaHead int,AreaEmailID varchar(50),
AreaMobileNumber varchar(25),LoginPassword varbinary(10),SystemPermission varchar(25))
end try
begin catch
delete from dbo.PlantAreaContact where PlantAreaID= @PlantAreaID
insert into dbo.PlantAreaContact select * from ##temp
drop table ##temp
RAISERROR ('Failed PlantAreaContact',16,1);
end catch
END
您正在嘗試為對象dt(這是一個空對象: DataTable dt = new DataTable()
)操作WriteXml。
你需要寫
PlantContacts.WriteXml("filepath");
明確要求是否與我的理解不同
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