Solved

FAIL READING XML INTO DATATABLE

Posted on 2011-03-09
11
492 Views
Last Modified: 2012-06-27
Hi All,

I have a xml table and I want to load it into datatable, but failed to do so.

What's wrong ?

Thank you.
Imports System
Imports System.Data
Imports System.Data.SqlClient

Imports System.IO

Public Class frmReadXML

    Private Sub Form_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load

        Try

            Dim strSourceFromClientFolder As String = System.AppDomain.CurrentDomain.BaseDirectory()
            Dim strXMLFileName As String = "121110110334.xml"

            ' Read in XML from file
            Dim dtTable As DataTable = Me.Read_XML_To_DataTable(strSourceFromClientFolder, strXMLFileName)

            ' Bind DataSet to Data Grid
            dgvData.DataMember = "Data"
            dgvData.DataSource = dtTable

        Catch ex As Exception
            MsgBox("Gagal Buka XML File ...!", MsgBoxStyle.Information, Me.Text)
        End Try

    End Sub

    Private Function Read_XML_To_DataTable(ByVal strFolderFile As String, _
                                                 ByVal strXMLFileName As String) As DataTable

        Try

            Dim dsTable As New DataSet
            Dim fs As FileStream

            fs = New FileStream(strFolderFile & strXMLFileName, FileMode.Open)

            dsTable.ReadXml(fs)

            Return dsTable.Tables(0)

        Catch ex As Exception

            MsgBox(ex.Message)

        End Try

        Return Nothing

    End Function

Open in new window

121110110334.xml
0
Comment
Question by:emi_sastra
  • 7
  • 4
11 Comments
 
LVL 53

Expert Comment

by:Dhaest
ID: 35093218
>> I have a xml table and I want to load it into datatable, but failed to do so.

Do you have any error ? I just tried it here, and it loads into several tables...
0
 
LVL 1

Author Comment

by:emi_sastra
ID: 35099955
Hi Dhaest,

Please see the result.

Thank you.
READ-XML.PNG
0
 
LVL 1

Author Comment

by:emi_sastra
ID: 35099962
How could load those tables to datagridview?

Thank you.
0
 
LVL 53

Expert Comment

by:Dhaest
ID: 35107248
That's very hard, because you have a multilevel xml-file. It will be split into several datatables.

What would you like to see in your datagrid ?
From where does your xml come from ? Is it coming from a database, why don't you query the database ?

0
 
LVL 1

Author Comment

by:emi_sastra
ID: 35107300
- That's very hard, because you have a multilevel xml-file. It will be split into several datatables.
Could we use 2 datagridview, one for tables and one for its table data.

- What would you like to see in your datagrid ?
The data there. We want to construct it.

- From where does your xml come from ? Is it coming from a database, why don't you query the database ?
It is exported from firebird, we can not direct access to it, since the vendor not allowed it.

Thank you.
0
What Should I Do With This Threat Intelligence?

Are you wondering if you actually need threat intelligence? The answer is yes. We explain the basics for creating useful threat intelligence.

 
LVL 53

Expert Comment

by:Dhaest
ID: 35107347
>>  Could we use 2 datagridview, one for tables and one for its table data.

Yes you can fe load all the tablenames into a combobox and depending of what's selected, show this into the datagrid. But it all has keys (foreign keys), so I'm afraid that it's not very usefull information (in some tables)
0
 
LVL 1

Author Comment

by:emi_sastra
ID: 35107359
-Yes you can fe load all the tablenames into a combobox and depending of what's selected, show this into the datagrid. But it all has keys (foreign keys), so I'm afraid that it's not very usefull information (in some tables)
Never mind. If it is the case, I just curious how to load it.

Thank you.
0
 
LVL 53

Accepted Solution

by:
Dhaest earned 500 total points
ID: 35107409
What you also can do is to create a linq-query to retrieve all the information back into one structure.

A small example below
Dim InvoiceAdd As DataTable = dsTable.Tables("InvoiceAdd")
            Dim CustomerRef As DataTable = dsTable.Tables("CustomerRef")

            Dim query = _
                InvoiceAdd.AsEnumerable().Join(CustomerRef.AsEnumerable(), _
                Function(Invoice) Invoice.Field(Of Int32?)("InvoiceAdd_ID"), _
                Function(Customer) Customer.Field(Of Int32?)("InvoiceAdd_ID"), _
                    Function(InvoiceA, CustomerR) New With _
                    { _
                        .InvoiceAdd_ID = InvoiceA.Field(Of Int32?)("InvoiceAdd_ID"), _
                        .SequenceNo = InvoiceA.Field(Of String)("SequenceNo"), _
                        .TxnDate = InvoiceA.Field(Of String)("TxnDate"), _
                        .FiscalRate = InvoiceA.Field(Of String)("FiscalRate"), _
                        .Rate = InvoiceA.Field(Of String)("Rate"), _
                        .Description = InvoiceA.Field(Of String)("Description"), _
                        .CustomerRef_ListNo = CustomerR.Field(Of String)("ListNo"), _
                        .CustomerRef_FullName = CustomerR.Field(Of String)("FullName") _
                    })

            For Each group In query

            Next

Open in new window

0
 
LVL 1

Author Comment

by:emi_sastra
ID: 35107473
Thank you for the code above.

What I am struggling now is how to load the xml file to dataset.

Thank you.
0
 
LVL 1

Author Comment

by:emi_sastra
ID: 35142684
Hi Dhaest,

Any solution ?

Thank you.
0
 
LVL 1

Author Comment

by:emi_sastra
ID: 35157248
Hi Dhaest,

I have succeed read xml to dataset and field dataset table names to datagridview (dgvTables).

How I could load data to datagridview (dgvData) when user click dgvTables using the xml data ?

Thank you.
         

dsTables.ReadXml(strXMLFileName)

            dgvTables.Columns.Add("Table", "Table")

            For Each tbl As DataTable In dsTables.Tables
                Dim dgvRow As New DataGridViewRow
                Dim dgvCell As DataGridViewCell

                dgvCell = New DataGridViewTextBoxCell()
                dgvCell.Value = tbl.TableName
                dgvRow.Cells.Add(dgvCell)

                dgvTables.Rows.Add(dgvRow)
            Next

Open in new window

0

Featured Post

Find Ransomware Secrets With All-Source Analysis

Ransomware has become a major concern for organizations; its prevalence has grown due to past successes achieved by threat actors. While each ransomware variant is different, we’ve seen some common tactics and trends used among the authors of the malware.

Join & Write a Comment

Introduction As chip makers focus on adding processor cores over increasing clock speed, developers need to utilize the features of modern CPUs.  One of the ways we can do this is by implementing parallel algorithms in our software.   One recent…
The ECB site provides FX rates for major currencies since its inception in 1999 in the form of an XML feed. The files have the following format (reducted for brevity) (CODE) There are three files available HERE (http://www.ecb.europa.eu/stats/exch…
Access reports are powerful and flexible. Learn how to create a query and then a grouped report using the wizard. Modify the report design after the wizard is done to make it look better. There will be another video to explain how to put the final p…
In this tutorial you'll learn about bandwidth monitoring with flows and packet sniffing with our network monitoring solution PRTG Network Monitor (https://www.paessler.com/prtg). If you're interested in additional methods for monitoring bandwidt…

706 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

14 Experts available now in Live!

Get 1:1 Help Now