Identify An Xml Empty Tag Using The XmlNodeType Object?
May 22, 2012
I have a program that analyzes and processes a complex xml data source (without a schema).The initial part of the program reads the xml line by line and captures the data value, table name and field name for further processing. The data (xml file) is created using InfoPath. This worked fine until we started using InfoPath 2010, which uses the "empty tag" (<tag />) for empty values instead of the traditional tags with no value (<tag></tag>). Of course my program does not know what to do with the empty tags and just ignores them - no exception, and no error.My question is: Does anyone know how to identify the empty tag using the XmlNodeType object attributes (in blue)?
Private Sub Process_ReportData(ByVal vFilePath As String, ByVal vFileName As String)
' Create an instance of XmlTextReader and call Read method to read the(file)
Dim RecordsTableAdapter As New RecordsTableAdapter
[code].....
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Aug 27, 2011
I am a newbie using Visual Basic 10 (Visual Studio 2010) and I am having a hard time working with my database. I have a table, let's say, TableEmployee with Fields Name and Position. On the Position Field, some of the records there were empty.My table is displayed in a datagrid and what I want to do is to insert a code that will identify whether the record under the position field is blank/empty and if that condition is true then display a messagebox that says "the particular record is empty"
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Feb 2, 2009
self closing tag is not triggering XmlNodeType.EndElement case how to check for these
[Code]...
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Jul 28, 2009
I'm using FileHelper to generate object's property. Here is an example of one property:
<FieldOptional(), _
FieldTrim(TrimMode.Both)> _
<FieldNullValue(GetType(String), " ")> _
Public StoreNo As String
As you can see the StoreNo will either have a value or " ", one of the business policy is to check if the StoreNo is empty or nothing if the object's StoreNo is empty or null then the record will not create.
I though about creating an HasValue Function in the class to check the StoreNo and other properties in the object but I feel like it is a hack.
Public Function HasValue() As Boolean
Dim _HasValue As Boolean = True
If StringHelper.IsNullOrBlank(Me.StoreNo) Then
[Code]....
I don't think this approach is an ideal solution. what if the StoreNo is remove or change to something else. What's the best approach to check object's property?
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Jan 16, 2012
I am trying to save a new object to the database using petapoco.I have an object that uses a Guid for the primary key.Here is an example of the objects primary key property.
<PetaPoco.Column()> _
Public ReadOnly Property Primkey() As Guid Implements IStandardDocument.Primkey
Get
[code]....
Here is an example of the save method.
database.Save("Reservations", "Primkey", reservation)
The sql that is generated is an update with a primkey of 00000000-0000-0000-0000-000000000000 instead of an insert. So new records are never inserted.If I have an existing object with a valid guid the update and delete all work correctly.
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Feb 15, 2010
Writing an asp.net mvc app and i have something like this...
Public Class AA
'... has some variables...
End Class
Public Class BB
[code]....
So, now in my program, i just want to copy object of type AA to an empty variable of type BB?it makes sense to do this, as i expect all the fields in AA type object to be copied to the newly created BB type object, and the ExtraVariable in the BB type object i would (will) just assign a value to it later (after the copy) on my own time!!I know copying BB type to AA type would not be appropriate as there would be lost data!But im trying to copy AA to BB, I've used both DirectCast and CType to do this, and i keep getting "unable to cast" error!
Note: I'm using vb.net (but can read c#, no problems)
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May 14, 2009
I have a DataGridView that has some columns with dates. It binds to an in-memory Datatable which gets loaded from an string array of data passed back from the backend Some of the rows returned have nulls for the date columns. Solution 1: If I define the Date column in the DataTable as "string" I can easily convert those nulls to empty strings and display it in the grid as empty strings (desired results). However, if the user clicks on the date column header to sort by date, it doesn't order the rows as you want. You get a purely string sort order. Not acceptable
[Code]...
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Apr 17, 2006
I'm having a problem when trying to identify if the CD on the drive is virgen (CD-R or CD-RW).I'm using the following code:
Public Function ExistsCDOnDrive(Drive As String) As Boolean Dim FSO As New Scripting.FileSystemObject If FSO.Drives(Drive).IsReady Then ExistsCDOnDrive = True End IfEnd Function
[code].....
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Jan 18, 2010
How to convert every key to something that i can identify.E.g. This returns the actual character "a" or "b" or "6". Not in the format i need it to be.[code]....
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Nov 8, 2009
How to my Application identify . About Windows Restart Timing And How much time Windows Restartand Thats alllogging it in Txt filei mean My application Logging Text oftime and date when Its Process Killed Like Closed
that is VB.6 code something Acording to my thread
Private Sub btnWaitForExit_Click( _
ByVal sender As System.Object, _
[code].....
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Oct 21, 2009
I've got a simple Windows Form Application that will tell you the drives on your computer, in a multi-line format using a Rich TextBox.So, If there were the C:\ and d:\ drives on my comp then It'd look like this
C:\
D:\
So, if there is an external drive (such as a USB under the "F:\" directory named "My Data" what would be the way to find the name of that drive, assuming that I do not already know the name Here's my code.
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
RichTextBox1.Text = ""
If IO.System.Directory.Exists("F:\") then RichTextBox1.Text = (TextBox1.Text + "F:\" + Environment.NewLine)
[code]...
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Sep 21, 2009
How can I uniquely identify a PC using vb.net code? Finding the PC name wil not work, as some users might use the same name. Please explain step by step, as vb.net is new to me.
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Feb 3, 2010
I am writing a search engine whose purpose it is to search all kind of blogs for specific kinds of content.I'm particularly focusing on these blogs engines:
Blogger
LiveJournal
MySpace
Open Diary
[code]....
Is there any way I can use google to find links that are from a specific type of engine, like for example wordpress?
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Jun 26, 2009
We are trying to identify the best archtecture while using a ORM like LINQ to SQL. The archture we are defining is for sort of framework that other applications will access either trough directly referencing the DLL or through a webservice. We have .NET apps and PHP apps.The possibilities are: Multiple data contexts: Separting the database into units of work and create separate contexts for each one.
Pros:
Easy of use
Classes will be broken into different namespaces
Smaller domain to maintain
Cons:
Objects have to be duplicated if
related, creating maintenance hell
Objects cannot be passed between context, creating the need for another hit on the data base Single data context: All tables, views, procedures, reside in the same huge context.
[code]....
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May 6, 2009
I have a large string in which I need to replace specific strings with other values. For example, within this string I might see the following characters: [[sub id=5]]. I am trying to replace those substrings with values, pulled from a table and based on the id. What would be the simplest way to accomplish this. My first thought was to loop through and examine each character and note their positions when they match the pattern. I would then have to identify the id. That would be fairly complicated, however, and there must be a better way.
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Jan 6, 2009
I have 2 buttons that will open the same form. but depends on which button is calling, the operation will be different. How can I identify that this form is called from button 1 or 2.Also, if we want to have a password in the vb.net stand alone application, should we use shared property?
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Sep 20, 2011
I'm retrieveing the current path with:
Dim paths As String = HttpContext.Current.Request.FilePath
Which returns something like /VHP/hmo.aspx. What I need to narrow down is the FOLDER (VHP). How do I remove the / before it and the /filename after it?
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Aug 15, 2011
I need to identify an ID number and a password. Like this,(Form1) there's a two textboxes, one is the ID number and the second one is the Password, when I enter the two it means i Log-in, the system needs to identify if the ID number and the password is registered in mySQL, then if it is registered a message box will appear "You are log-on" and a form will show (form2) in 10 to 15 seconds that is having the information of the student, then it will automatically close then it will go back to the form1 which the another user will log-in again.
(this is Form1 too) then here is my second problem, like what i said in the first problem, the program needs to identify that the student is already log-on the school and he is going to log-out, (like this, system is going to identify that the id number and the password is already declared on the first form, so it will be the log-out code, then a message box will appear "You are Log-out".
(Form3) then here is my third problem, i need to identify how many people is inside the campus and not going out on the campus. The person or student that is not logging-out on the program or the system will be count when i click the Button 'Count' and the number of student inside the campus will be display in a 'Label'(it will be inserted also or having record on mySQL tableInside).
('Form4') then my fourth problem is the system needs to identify how many students did log-in on the campus. Or the system will identify how many person input their ID Number and Password on the first form ('Form1', it will be inserted or having record on mySQL tableLog).
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Dec 22, 2007
Let's say i create 3 different process like this:
For i = 1 To 3
im pr As New Process
pr.StartInfo.UseShellExecute = True
[code].....
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Jul 25, 2011
Does anyone know how I could get my app to show the ISP of the machine it is running on, I can get internal and external IP addresses, just need to know if possible and how to look up ISP from this information[url]...
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Apr 2, 2010
I am working with the Richtextbox for the first time. Currently I can Bold the text from the textbox (shown below) but I want to alter this so that I can do the same thing regardless of what Richtextbox I am in. How do I do this without naming the Richtextbox specifically?
VB
' Sample
Private Sub tslBold_Click( _
ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles tslBold.Click
StyleItalic(rtxtGoals)
[Code] .....
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Aug 31, 2010
Can Attributes be used to identify what property from a class is required?
For example:
Class Test
<Attribute ??????>
Public Property A as string
[Code]......
I want to be able to select a or b property by referencing an Attribute value.
For example test.PropertyWithAttribute(blah) = "something"
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Jul 27, 2010
on a network how can i identify a computer uniqulyof course not by system IP , why because IP can be changed easily or else other person on a network can change his system IP to another system IP while that IP in shut down status.hence i want to identify a system duly keeping any text file + some id written in it at any said address
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Jun 28, 2010
This must've have been asked before but I couldn't locate it. In a mixed code project (VB and C#) we were debugging some old Visual Basic code where a statement as follows could be found:
If Request.Params("xxx") <> "" Then
'do something
I considered this a bug as Request.Params could be null, in which case the statement would've become false which wasn't the idea. So I thought. I just found out, -- probably for the tenth time and I will keep forgetting -- that the following two statements are not equal, while Nothing in VB should be equal to null in C# (thought I):
if(String.Empty == null) // always false
If String.Empty = Nothing Then ' always true
Should I dismiss this as a typical Microsoft backward compatibility effort, or should I consider this a huge error in the VB.NET compiler? Does anybody know the Microsoftean opinion on this oddity?
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Dec 31, 2010
I have an asp button which I am using in 2 different places (appending to a new place and adding a class using jquery under certain conditions). I need to slightly alter the function that runs when this button is clicked depending on whether or not this button has a given class. Is this possible? So something like this...[code].....
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Mar 13, 2009
how to detect/identify the system login, System screen lock, unlocking the system screen & finally the system Logoff event.Basically I want to capture the system time when these events occur by creating a windows service which runs in the background.
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Sep 22, 2010
We have several programs that run during off hours and I want to write a program to monitor them. I have defined a list of priority programs and have written code to verify that they are running using 'Dim instance As Process'. The problem is that I can't figure out how to determine if the program has a pop-up error window like "unhandled exception" or similar window. The instance.responding still shows 'true'. How can I identify a process that is executing but has an error?
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Sep 26, 2009
I need a way to identify which cell of a datagridview (row and column) is beneath the mouse when Mousehover event fires for the datagridview control.ebassador
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Mar 18, 2009
I am doing an interactive voice response (IVR) project in vb.net, for that i am using E1/T1 network interface card to identify the phone calls.. A network cable is connected to the card from pbx...how to get the incoming call number using vb.net, how can i identify the e1/t1 card port. which component is using in vb.net
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Oct 15, 2011
i want to Identify filled rectangles in picture given picture in vb .net.
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