Redundant Data Are Added While Creating A XML File From DataSet?
Jan 5, 2012
This is resultant Xml File
<Drug_x0020_Type>Marijuana</Drug_x0020_Type>
<Marij_x0020_Type>Test1</Marij_x0020_Type>
<Test1_x0020_Type>Type1</Test1_x0020_Type> <Time_x0020__x002F__x0020_Date_x0020_Recv_x0027_d>11:30</Time_x0020__x002F__x0020_Date_x0020_Recv_x0027_d>
In Database these element are as follows Drug Type,Marij Type, Test1 Type,Time / Recv'd
When i write out the dataset to xml using the GetXml method of the dataset.
Its Created But some extra values are added in element tag.
Its addeding due to special characters like {' / ....etc}
How do i get the resulting xml without those values?
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Feb 26, 2012
I have added a dataset from New Item >> DataSet and configured it. I want to add new row to it using
Dim drNewRow as datarow=DataSet1.tblTest.New
but when I press . after DataSet1, IntelliSense does not catch tblTest, rather it gives tblTestRow and tblTestDataTable
How to get DataSet1.tblTest here?
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Mar 28, 2011
I've made a dataset using the dataset designer, and I'm trying to add a column to reflect changes made to the database (added a column, nothing fancy). Is there a way to 'refresh' the dataset schema from the datasource without deleting my adapter (and all the methods and queries I've created)?
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Sep 11, 2009
I'm getting this error 'column' argument cannot be null. Parameter name: column at the bold character instruction. Also I would like to know how to relate two tables with two key columns in each table
I'm getting this error 'column' argument cannot be null. Parameter name: column at the bold character instruction. Also I would like to know how to relate two tables with two key columns in each table
[Code]...
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Nov 8, 2011
I am trying to create a Form that can be filled out in it's entirety without having to bring up other forms. It is considered in access to be a subform. I have one table that includes Injuries and each injury has a specific ID well I have all the information that goes with it updating, except for the "many-to-many relationships"...I one want injury to have more than one treatment type, the problem occurs when I drag the injury table over from my dataset it automatically creates a binding source for it, which only controls the data inside that table. It does not control the data that is related to it such as "treatment type" "body part injured" . There must be a way to have a single Inj
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Jul 29, 2009
I add columns to my dataset but when start my application again columns are not there
[Code]...
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Mar 7, 2010
My background is mostly Access VBA and I am having to learn VB.NET. I am trying to recreate an Access 2007 application I wrote into VB.Net. We are looking at using a hosted SQL Server so we do not have to worry about remote offices or replication. I am using VS 2008 and SS2008.My issue is that I need to create a login form in VB that with look at SQL Server DB and return a dataset record matching the username and password. There are many tutorials on here but do not match what I am looking for.I have a stored procedure with 2 parameters (@prmUser and @prmPassword) named spLogin.I need to call the sp and pass the parameters to SQL Server DB and return the complete row of data that is matched from the button_click event on my form.
In Access, I would have a form that would have the returned data and I would reference that information throughout the application by using the 'forms!frmName!txtValue' to populate forms, reports, and fields that would capture the user that created the record. What is the best practice for this?Next when the login credentials are correct then I need another form to open, which is my MDI form, if not correct then msgbox to try again.
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Apr 29, 2011
For a WinForms VB.Net application, I use the Bindingsource's filtering capacity to filter data, which is seen in a DataGridview. The BindingSource is from a DataSet, created using the Designer, and the data comes from a Access DB, using JetEngine and .Net 3.5. So basically:
Datagridview.Datasource = xxBindingSource
xxBindingsource.Filter = "[extended filter string with multiple columns]"
This filtering works fine, however, now I included some extra columns in the DataGridView, which I'd like to filter on, too. Of course, when I feed the manually added columns to the Filter of the BindingSource, this doesn't work out.I've done some research, and was not able to find any way to use the BindingSource's filtering syntax on the DataGridview. I'd like to use this syntax though, as I designed quite a nice UserControl and class around it, to provide smooth, fast and simple filtering capabilities.
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Mar 25, 2009
I am compressing a dataset converted to XML using the GZipStream class added in 2.0. There are a few things bothering me about this. Here's the code I am using to decompress the XML file:
Using inFile As New System.IO.FileStream(flnm, IO.FileMode.Open, IO.FileAccess.Read, IO.FileShare.Read)
Dim zStrm As New System.IO.Compression.GZipStream(inFile, IO.Compression.CompressionMode.Decompress)
Dim buff(999) As Byte
[CODE]...
This seems inordinately awkward, as I am taking the stream, reading it out into byte buffers, then writing those byte buffers to a memory stream that is then passed to the dataset.ReadXml() method. The reason for this seems to have to do with what is happening in the line colored red. That line is adding a closing > onto the end of the stream. Without that, ReadXml complains about an unclosed dataset. I found out that the > was missing by writing the stream into a string and pasting the string into WordPad. Without that missing >, it appears that I wouldn't need to be using that memory stream at all, and could simply pass in the GZipStream to ReadXML, but as far as I can tell, it's impossible to look at the GZipStream to be sure that the > is not there, and it may be impossible to add it (I haven't tried).
So why is the > missing? Here's the code used to create the file that is being read into the filestream in the above
VB Using ms As New System.IO.FileStream(flnm, IO.FileMode.OpenOrCreate, IO.FileAccess.Write, IO.FileShare.Write)
Dim zStrm As New System.IO.Compression.GZipStream(ms, IO.Compression.CompressionMode.Compress)
ds.WriteXml(zStrm, XmlWriteMode.WriteSchema)
End Using
The real kicker to all of this is that while I was dissecting the first chunk of code, I added a line to check for cnt<1000. My intention was to see the last buffer that was being written into the memory stream to see whether the final > was actually there, or not. To my surprise, I reached the cnt<1000 twice. That means that one read did not read a full 1000 bytes, but read only 675. The next three or four reads were a full 1000 bytes, then the final read was just a few hundred bytes. It is my understanding that Read will return a full buffer if there are that many bytes left to read, and there were, so why did it return only a partial buffer? That suggests that there might be a hole in my XML, though with a half meg file, it's a bit much to read through it looking for something missing. However, the XML that was returned was turned into a dataset that I then merged into some existing data using code that has been working with uncompressed XML files, and I got an error that I should never have received. That may indicate that the XML was, in fact, missing something, though I will have to study the matter further to figure out whether or not that is the case. My major question has to do with the missing '>' at the very end of the file.
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Jan 31, 2012
We have always used Me.Property and Me.Control in our VB projects, and have just got ReSharper. Does anyone know of a way to get it to ignore this specific type if redundant qualifier?
I still want it to complain if I use any other redundant qualifiers.
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Feb 8, 2011
I have created a User Control in VB 2005 that adds other controls dynamically. This is a fairly simple test project, with checkboxes added to the control at run-time. Here's the user control:
Public
Class UserControl1
Public x
[Code]......
Then I built the test control and tried to added it to the Toolbox. When I did this--i.e., browsed to the dll and double-clicked it, I got the errror message:
"There are no components in ... that can be placed in the toolbox."
Is it even possible to add a User Control to the Toolbox without compile-time components?
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Aug 3, 2009
I would like to know how can we know if current active windows accept an character keyboard input. For example, if a non textbox control in an active window is in focused and user press "a" key, then the current active window will not accept the "a" input.
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Feb 15, 2012
Now i am tring to make a data set by creating it in separte DLL file(using VB net) the code i used in this dll fle aready workong in my form but i tried to use it by this diffrent way ,,,but no way this is the code of the dll file. Bonjour tous les monde,,
Now i am tring to make a data set by creating it in separte DLL file(using VB net)the code i used in this dll fle aready workong in my form but i tried to use it by this diffrent way ,,,but no way this is the code of the dll file.
Public Class WAELDS2
Private _MAXROWSXX As Integer
Public Property MAXROWXX() As Integer
[code].....
it always give me 0 evenif the table contains 8 records?
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Mar 15, 2011
I'm using the following code to write the data and schema of a dataset to a XML file.
[Code]...
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Mar 14, 2011
i having trouble with exporting data from a dataset into an excel file, mainly i have included references to excel 12.0 and included the import line:Imports Microsoft.Office.Interopand i try to export a dataset to excel using a button that contains the following:
Dim row As Integer
Dim col As Integer
Dim rowCount As Integer
[code].....
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Feb 25, 2010
If a node belongs to a namespace, it's children by default belong to the same namespace. So there's no need to provide an xmlns attribute on each child, which is good. However. If I create two nodes like this:
[Code]...
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Jan 26, 2011
I've done some research into this using the MSD website; I have found that my applicaiton saves the Customer Details to the Customer File, but only as (spaces). No data is present in the file.
I'm creating an application that saves Customer data to a file. Once the Data is saved into the file, how would i then get it from the file into a ListView?
[Code]...
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May 14, 2012
I have tried everything I can to get beyond this error which shows below as <<<<< error here. It is trying to fill a dataset from a data adapter. If I change the SELECT statement to just SELECT * FROM xTable I get the correct number of records in each table. But anytime I try with a more complex statement I get the error message shown below which indicates System.Data.Common.DbDataAdapter.Fill(DataSet dataSet. I've completely erased all data and entered a new set of test data so I know there is no problem with relationships. Each table has primary key which is foreign key in other table. IS there something wrong with the Imports section: Imports System
[Code]...
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Aug 24, 2010
i am trying to copy data from a standard Dataset to a Type Dataset (XSD) of same table structure. i want to use Automapper to do that one. So how can i do that using automapper?
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Jun 22, 2010
I have two Datagrids, One grid has all the customers garments on it with style number and contact length. The other grid has the users who have garment issued to them. the style number is in both grids. I need to loop through the users grid and say if the contract number is 1 from the first grid then the contract date on the second grid will be todays date + 365 days (year contract) I have looked at using a stored procedure and also a for each command but I am just getting stuck with it all. [Code]
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Apr 16, 2009
Basically this will be all I need to survive this flatform.
Public Function NoWork(DateDue As Date) As Boolean
Dim strSQL As String, rsHoliday As Recordset
Dim dHoliday As Date, nDay As Long, x As Date
Dim DDate As Date, dNewDue As Date, dOrigDueDate As Date
[code]....
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Apr 25, 2009
I am using reportview to set up my report pages. I used the existing datasets(configure -->add table -->save) but every time I clicked save, I got a few errors. So I decided to create new datasets for the tables that I want to have reports. Is that the right thing to do?
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Nov 14, 2009
I create the form, click on 'Add New Data Source', etc, and am fine till I select the database object and hit 'Finish'. At this point i get the error: "An error occurred while creating the new data source: Could not get type information for ... " and my dataset names.
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Jan 11, 2011
I have a XSD file and I must create an XML file with data,I read schema but dataset doesnt have any table(I debug code ),how do I get XSD file into dataset,I use this code :
vb.code
Dim wds As New DataSet
wds.ReadXmlSchema("C:myXMLschema.xsd")
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Mar 10, 2011
I have a function class in which I have created a function that connects to an Access database and runs a query and returns a dataset.
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Dec 15, 2011
I have connected my sql db with vb and I m trying to make a UI. My question is that when I write code in order to create datatables and I fill them with the results of queries I've created, where do these datatables belong? I'm wondering if I have to define a new dataset or do they belong to the existed dataset which is created by the dataset configuration wizard??
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Nov 20, 2010
what is wrong with my code? Data could not be added into database.
[Code]...
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May 25, 2009
I new to vb.net. I used following code to add new row in my "customer" table. Following code does not give me any error. Still data is not added to database.
[Code]...
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Feb 14, 2011
Can you please explain me and/or show some good tutorials how to do it?It seems pretty complicated because visual studio usually does it all for you and that made me stupid and not to do anything about it.Things I don't know to do in code but I know VS does it for me:
[Code]...
I'm sure there is a good tutorial somewhere on the internet. I'm okay with doing it with designer, but now when I have a situation where I can't use MDI container but tabcontrol.Other solution would be to make a MDI container out of tabcontrol. Is it posible or only other form can be MDI container.
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Feb 1, 2010
I have a dataset (WW1Dataset) with one data table(WW1).(database used in an access database) I'm trying to filter the dataset e.g a user wants to filter by a chosen surname (SurnameTextBox.text) so the datset is filtered to display only those records wherethe surname column in the dataset matches SurnameTextBox.text.
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