DataSet.WriteXml Not Writing Rows In Correct Order?
Mar 12, 2009
I have an XML file that is being updated via ASP.NET. The user should be able to add new nodes to the XML file AT ANY LOCATION in the node tree.
The XML file is read into a DataSet using DataSet.ReadXml(filename).
A new row is added to the appropriate DataTable, using InsertAt(row, index).
I have confirmed using a DataGrid, and using a loop (For Each dRow in Table, Response.Write..) that the new Row was inserted into the table at the correct spot (in my example code, the 3rd position).
However, The WriteXml() method is writing the node to the END of the XML tree! I can't get it to see the tree with the node in the correct location.
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Dim sXML_Lesson As String = "test.xml"
[Code]......
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Sep 21, 2011
In VB.NET when I use the WriteXML of DataSet, can I customize it? That is to say; I want to make a structure like this:
[Code]...
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May 15, 2009
What I am trying to do is to output a dataset into an xml document using Dataset.WriteXML(), but one of the things that I can't figure out how to do is to have what I believe are called inner nodes.What I mean by that is I have client data, but a client can belong to many companies, which I need to show in the xml as strings, so what I was thinking it should look like is...
<ClientData>
<Client>
<ClientName>[code].....
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Jun 24, 2010
I have some code that creates a dataset from a backend server. I then use the WriteXML method to output it to an XML file. This works fine. But some folks have requested that I sort the output one way or the other (yes, it is easy for them to do so, but they are end users and want the computer to do all their work.) I know I can use .select to extract the data to an array, but I would then have to write that array out to a .XML file. It would be easier (I think) to just sort the data before I output it to XML. I had thought there might be something like dataset.table(0).sortColumn = 2 or something like that, but apparently not.There is only one table and the code will know which columns may be used for sorting.
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Feb 6, 2012
When i output my dataset to an xml file, 87 nested tables with 218 class object (system.type.object) columms i get 247,691 instances of output like this."msdata:InstanceType="LotNet.LForm+Pointer, Learing Programs, Version=1.3.0.9, Culture=neutral, PublicKeyToken=null" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">" In this case the decluration is more then twice the size of the Pointer. Is there any way to supress this kind of output the data is only used for internal consumption by other moduals.
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Feb 14, 2012
I am stack at work finishing my program.I have a piece of code to write an xml file.
Dim ds As New DataSet
Dim dt As DataTable = GetDtable()
ds.Tables.Add(dt)
[code]....
That work will write an XML file whatever I put in the datatable (or dataset). It is just a simple code and it works fine. The problem is it will replace the old file everytime the new file is created. I really don't want that to happen. I also want to include 2 variables (username, sessionID) also time of the file created in the file name. So file name will be Username_sessionID_time.xml rathen than a fixed name.
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Apr 16, 2012
I have a question about using writeXml. When I use this method, it writes to the specified xml file like this:
<safety><Incident>
<Name>Jason</Name>
<AGE>23</AGE>
</Incident>
<Incident>
<Name>Frank</Name>
<AGE>25</AGE>
</Incident></safety>
But, I would like to add these nodes to a parent node, i.e.:
<safety><SomeNode><Incident>
<Name>Jason</Name>
<AGE>23</AGE>
</Incident>
<Incident>
<Name>Frank</Name>
<AGE>25</AGE>
</Incident></someNode></safety>
I am creating the xml by first creating a dataset (connects to an SQL db and runs a query, filling the dataset) and using ds.WriteXML(myPath)
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Sep 16, 2011
I have a database application connected to a sql express datafile, i am using a datagridview and have clicked on the arrow and added a query. the query is simply sort / ascending on my date field which is a text field with auto generated when the field is focused so i know the dates are entered correctly but when i use the query they are not in their correct order. [Code]
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Oct 30, 2010
I am making use of an ASP.NET Masterpage. I have 3 tables as Columns in my Masterpage. The first table load then the second table that contains my "ContentPlaceHolder" and then table 3. How or what must I do to load table 1 and then table 3 and then lastly the table 2 that contains the "ContentPlaceHolder"?
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Feb 16, 2012
I have used the TreeView and populated the list using the following code:
m_strStation = cboStation.SelectedItem
For Each strDir As IO.DirectoryInfo In New IO.DirectoryInfo(m_strPath & m_strStation).GetDirectories()
trvFolders.Nodes.Add(strDir.Name)
Next
The TreeView populates and every folder is visible, however the folder names consist of:Place #. Name the problem I am having is that the number range is 1 - 16 and the order in which the folders are being displayed is 1, 10, 11, ..., 15, 16, 2, 3, ..., 8, 9 I am looking for the folders to be listed in true numerical order e.g. 1, 2, 3, ..., 14, 15, 16
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Jul 8, 2009
Ok here goes my stab in the dark again: I would like to be able to insert a number in to a list box in the correct order, at the moment the number gets put at the end, but the list box starts negative and then gets larger and the values that will be added are within the range already there, My guess would be some sort of sort function?
listbox1.items.add"inorder"(textbox1.text)orlistbox1.items.sort.add(textbox1.text)
i have seen addrange as a function. can you also tell me if i am starting to think like a VB ((novice) programmer?
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Sep 16, 2009
I am attempting to get hiscores into the correct order but.. I am having troble with some of it.. I have this for my sort alogrithm
Code:
For i = 0 To Howmany
For j = i + 1 To 9
If ArrScore(i) < ArrScore(j) Then
temp = ArrScore(i)
[CODE]...
The hiscores text file looks like this:
Code:
Stuart:120,LoL:192,Computer:112,LoL:113,
The immediate window looks like this when its run.
Code:
0 1 , Stuart , 120
0 2 , LoL , 192
1 2 , 120 , 120
2 3 , Computer , 112
2 4 , LoL , 113
3 4 , 112 , 112
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Apr 24, 2012
I'm trying to set the tab order on my form and no matter what I do, it doesn't relearn the new tab position after I change the index. It almost seems like the form is locked.
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Jan 4, 2011
I have a problem saving a dataset which contains rows that i have imported from another dataset. i can successfully view the imported rows in a gridview but i cannot commit the rows back to the database.
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Feb 1, 2011
I'm trying to read back a string that I wrote into a binary file, but it's giving me problems and I don't know what's going on. I open and read my file using the code below:
ifstream input([filePath UTF8String], ios::in | ios::binary);
int numStringBytes;
input.read((char*)&numStringBytes, 4);
[Code]....
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Sep 24, 2010
I'm trying to read back a string that I wrote into a binary file, but it's giving me problems and I don't know what's going on. I open and read my file using the code below:
ifstream input([filePath UTF8String], ios::in | ios::binary);
int numStringBytes;
input.read((char*)&numStringBytes, 4);
[code]....
There is a lot more to the file reading code, but it's proprietary and this is the part that keeps crashing. It runs fine loading the first two files, but when I try to open a third file, it crashes with EXC_BAD_ACCESS at the input.read((char*)names, numStringBytes); line. I don't see any reason that this should crash. I'm writing the binary files in VB.NET using the below code:
Dim myFS As New FileStream(savePath, FileMode.Create)
Dim encoding As New System.Text.UTF8Encoding()
Dim stringBytes() As Byte = encoding.GetBytes("++string")
[code]....
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Oct 31, 2010
I have a filtered bindingsource bound to a datagrid. The datagrid fills and displays the data correctly based on the filter criteria.
The problem comes when I try to access the data directly from the program. It returns data, but only as if the filter wasn't there at all. [code]...
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Oct 26, 2010
Here's the issue I'm having:
I have a filtered bindingsource bound to a datagrid. The datagrid fills and displays the data correctly based on the filter criteria.
The problem comes when I try to access the data directly from the program. It returns data, but only as if the filter wasn't there at all.
The count function returns the proper number of records.
[Code]....
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Jan 23, 2011
i have a button and 2 text boxes to insert datai have a button and 2 text boxes to read the datait seems that when i insert a row, it is not being inserted as the very next row. or at least it is not reading it in order1st. I add rws with the values (2 columns in table) 1 and 1, then 2 and 2, then 3 and 32nd. I read the rows, the do not come up in order 1 and 1, then 2 and 2, then 3 and 3. I will get somethign like 1 and 1, then 3 and 3, then 2 and 2,it does read it the same way each time i read it.
vb.net
Private Sub btnInsert_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnInsert.Click
[code].....
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Jun 24, 2010
I am creating an information access system. Here the notifications created by the admin will be visible to the user through a visual basic form and sql database. I need a maximum of 20 notifications and the last created notification should appear at the top in the form. Also when the 21st notification is created it should automatically delete the 1st and so on.
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Feb 8, 2010
Well, i was thinking of making a Tetravex solving program in order to practice my code writing skills (language will propably be Visual Basic) and I need help finding an algorithm for solving it. For those that don't know what tetravex is see this http:[url]... . The only algorithm I can come up with is the brute force way, place a tile randomly in one corner and try every possible tile next to it and continue the same process, if it reaches a dead end revert to a previous state and place a different tile.
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Oct 28, 2008
When I click on the Columnheader of DataGridView it change the order of rows. How do I stop this?
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Feb 7, 2012
I have following code that creates Linq query.
I've never used Linq until today and having problem with "Order By Clause"[code..]
If I run the code, I get following error.Name 'p' is either not declared or not in the current scope. How come p!Weight in "Select Clause" works but not in "Order By Clause"?
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Jan 16, 2011
why this does not output any data to the xml file?
'this displays all records
Me.SQLString = New OleDbCommand("SELECT * FROM FlightDetails", DBConnection) ' WHERE FlightDetails.ReportNumber=BeforePushback.ReportNumber", DBConnection)
'establish data adapter/data table
[code]....
There is no exception or error thrown, the debugger just skips over it.The FlightDetailsTable contains data as it is bound to text boxes on my form. I just don't know why the data is not written as xml to the file.The file created contains this line '<?xml version="1.0" standalone="yes"?>' and that is all.
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Nov 17, 2011
writing to multiple rows in the database using VB 2010?
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Aug 11, 2010
When you change a dataset schema (example you add a new table) in Visual Studio 2010 (Visual Basic), you must rebuild your project in order to use the new table in a control, is that a new thing or is this a bug?
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Jul 20, 2010
I am writing an application that is doing a file conversion.I created a new process in order to run an exe and pass it some arguments in order to do the file conversion. I ran this in the Submit button click event.I added an event handler for when the Process had exited and then continued my code, since I had to wait for the file conversion to complete before continuing.
Everything is running fine now up until the point where I am trying to call a FillBy for one of my datasets. My fill by is accepting a parameter UserID and filling it based on the user id, which is selected in a combo box in the program itself.I keep getting exceptions and it immediately exits the program whenever I try and use this fillby method, if I take it out it completes successfully; however, the new row I just inserted was not added.
I tried adding a tryparse for the value selected from the UserID combobox but I get this cross-thread exception, so I have a feeling the 2 are related.
[Code]...
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May 10, 2011
I am trying to write data back to my database in my project, but it keeps disappering when I make any changes to code. I can build the project, add data, close the project and build it again and the data is still there. But as soon as I make any changes to anything, on the next build, all of the data is gone.
The table will not be bound to any controls in the final project, but for testing purposes I have a datagrid control that it is bound to. My code started as follows:
[Code]...
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Apr 26, 2011
Public Class Form1
Dim ds As New DataSet
Dim xd As XDocument
Dim Qual1, Qual2 As String
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code] .....
How do I make it so when I click the button it saves to the selected element that is selected in cb
My question is my code for populating employee information based on the name selected in the combobox cb works, However I need to be able to write QUAL1 and QUAL2 to the employees whose name is in the combo box.
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Sep 3, 2009
How can I set the column width and leave the top 10 rows empty in order to insert an image into my Excel report?
Here is my code:
If ComDset.Tables(0).Rows.Count > 0 Then
Try
With Excel
[code]....
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