VS 2008 Serialize Arraylist To Xml
May 12, 2011I know how to seralize my arraylist to xml using vb.net?
View 2 RepliesI know how to seralize my arraylist to xml using vb.net?
View 2 RepliesIs it possible to serialize an arraylist of objects into xml?Its damn urgent.Kindly reply.
View 1 RepliesI have a class called Tree, it has an arraylist called alTreeNodes. alTreeNodes is an arraylist of TreeNode class. Since I am using ISerializable Interface, I have to provide a specific constructor. I know how to write it for string parameters such as name_value, but how should i do with arraylist of object then? See "???" in the code blog before.
Protected Sub New(ByVal info As SerializationInfo, _
ByVal context As StreamingContext)
If info Is Nothing Then
[code]....
If a class is serialized and has events fired from it that are handled on a form you get the error "Form1 cannot be serialized" in c# you can use (to work around this):
[Code]....
What I need to do is read an ArrayList in My.Settings and add another ArrayList to it. The first think I'm trying to do is load My.Settings.Records into myArrayList. I'm not quite sure on the proper way to do this. I've tried things such as Dim myArrayList As ArrayList = My.Settings.Records, I'm not sure if I need New and I'm not sure if I need .Clone or .CopyTo.
Then I have another ArrayList myArrayList2. To get this into myArrayList I've done: [Code] Then to save it back to My.Settings I've done. My.Settings.Records = myArrayList. The problem is I keep on getting Object reference not set to an instance of an object error on the AddRange line. My.Settings.Records is definitely an ArrayList and it will sometimes = Nothing. The objects will only ever be strings.
I'm trying to serialize this class:
<System.Serializable()> Public Class Person
Private _FirstName As String
Public Property FirstName() As String
[code]....
I desperately seek for a code sample to serialize an array of structure elements to a XML. To serialize a simple object of a structure I used:
Private Sub saveEntries()
Dim FS As New FileStream(path, FileMode.Create)
Dim XS As New XmlSerializer(GetType(personEntry))
XS.Serialize(FS, entries(0)) 'serialize first entry of an array - success
FS.Close()
End Sub
Structure looks like this:
<Serializable()> Public Structure personEntry
Dim name As String
Dim d, m, y As Integer
End Structure
Private path As String = "data_file.xml"
Public entries(2) As personEntry
But how to apply this to an array?
i made an assembly that contains a class DownloadJob / I load the assembly into another project (the download manager) and i am trying to serialize the downloadjob into a XML file as such:
Public Sub Save()
Dim objStreamWriter As New IO.StreamWriter("C:Product.xml")
Dim x As New System.Xml.Serialization.XmlSerializer(Me.GetType)
x.Serialize(objStreamWriter, Me)
objStreamWriter.Close()
End Sub
I put the save function in the assembly in the class downloadjob itself so ME refers to the DownloadJob class object that i want to serialize I get this huge exception:
The assembly with display name 'Download Client.XmlSerializers' failed to load in the 'LoadFrom' binding context of the AppDomain with ID 1. The cause of the failure was: System.IO.FileNotFoundException: Could not load file or assembly 'Download Client.XmlSerializers, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null' or one of its dependencies. The system cannot find the file specified.
[code]....
however when i turn off exceptions serioalization works and i dont have a problem.
Basically I have created an object that has a graphicspath as one of its properties... and i want to serialize it...
I was basically wondering if i could somehow automate the serializing of the GraphicsPath to another object (for the purposes of serializing since the graphicspath cannot be natively serialized)
eg serialize it to a list of the following class:
vb
<Serializable()> _
Public Class sPath
Public PathPoints() As PointF
[Code].....
how can i serialize 2 lists(of classes) into 1 file?
View 5 RepliesWhat I am doing is iterating through all the groups that belong to the top group (Generic reports). Then I take advantage of the GroupPrincipal.GetMembers(True) which will recurse through a given group name. I test to see if the user exits under that group and if true I put the group name in an arraylist.
I use the for each principal in GroupPrincipal.GetMembers to loop through each returned user to see if they exist.
Is there a way to put all the returned users Principal.Name from a given group in GroupPrincipal.GetMembers into an ArrayList? This would allow me to to use Arraylist1.IndexOf to search for user. Which would be much faster then iterating through a returned list using the for each construct.
Sub RetAllMbrs(strUser As String)
Dim oPC As PrincipalContext = GetPrincipalContext() '<- this is function somewhere else in the code
[Code].....
I have a problem in Treading.I have a code like this;[code].....
I want to change ListBox1 with ArrayList. But I couldn't find how to use adding a string to ArrayList in tread.
I have an arraylist (arrFirstArry) which I use to populate another arraylist (arrNoDuplicates) preventing any duplicates from being added. This works fine. What I would also like my code to do is prevent adding any partial values which may exist from being added. i.e. my array is like this
[Code]...
I have two structures Public Structure myResearchData
Public batchName As String
Public arraylistRData As ArrayList
End Structure
Public Structure myResearchSubData
Public researchDescription As String
[Code]...
Cleared MyResearchData.arraylistRData for new data to be put in but it also clears the arraylist inside MyResearchDataAList and didn't old the contents of the arraylist
I would like to know if there is anyway to save arraylist to xml. Below are my code,
vb
Public Class Video
Public vName As String
Public vFile As String
Public vType As String
Public xTL As Integer
[Code] .....
I am new to arraylist. I have used standard 2 dimension or single dimension arrays which is there is .net & legacy VB.What I want is removing & searching in arrays to be easy ? VB.net does provide something called arraylist whereby we can remove items easily like X.removeat (index) or x.remove (search) etc.[code]Now I have a array person. To add i do redim person(10) or using preserve if I need to dynamically add etc. To remove is a pain as I need to copy contents and remove manually.Anyways in .net you have option called ArrayList.How can I use this to make life easier? If I want an arraywhereby I can do person.removeat (2) or person.add person.name="XYZ" & so on.Just wanna ease up on searching & removing.
View 6 RepliesI'm trying to use my own structure as a dynamic array (ArrayList?) but can't find the right syntax.
Public Structure BLsCompsRootDir
Public BL As String
Public Component As String
[code].....
I want to create an arraylist from MDI childforms and I did it like this:
vb.net
Dim sl As New SortedList(Of Integer, Form)
Dim i As Integer
Dim form As Form
For Each form In Me.MdiChildren
[Code] .....
It's working great, that means that if I delete a childform for example number 2 from all 3 then it creats first number 2 again and then number 4. Now the problem is that It only shows the childformnumber in the parentformtext instead of the name and number of that childform,like this: parentform - childform 1
I can do this with a for loop, but I was just curious if an arraylist can be updated using a for each loop. ie
For Each arrItem As String In myArrayList
arrItem = "My Stuff"
Next
If I loop through the arraylist again the values remain unchanged.
I have a windows app and I'm trying to cache images in memory. I have:-
[code]...
I think I have to sort the array to be able to use binarysearch.So I need to sort the arraylist on TileDetails.TileURL(if possible) and then binarysearch on it.
I have a access db that contains logs in it from a project of mine. I have set up a total of 10 columns per row for log ids to be inserted ex: Log_1, Log_2, Log_3, etc...
The logs are pulled from an XML file that I downloaded and extracted from in an array list: log_id_1, log_id_2, log_id_3, etc...The db columns are a fixed number, 10. While the log id in the array list are variable, from either none upwards to about 20 of them.
If my arraylist has more entries in it than db has positions, I dont get an error, but if my array list has fewer than the 10 fixed columns in the db, I get an index error.What should I do to fix the error, capture the error and ignore it or is there another, better method?
may i have an simple example to create,initialize an multidimensional arraylist some thing like
Dim i As ArrayList()()() and add / retrieve the values from specified indices
how do I do the code if I wanna delete a selected item from the array list and not all the items store in the array list? [Code]
View 2 RepliesI need to know how to save listbox items into ArrayList And restoring these items back from Arraylist into Listbox I tried this code but it returns Null Error Exception
[Code]...
the vars outside the procedure
Dim rentalRecords As New ArrayList() ' The arraylist containing the records
Dim carRecords As New ArrayList()
Dim currentRecordIndex As Integer ' The index of the current record
[code]....
I want to have multiple threads input data into the same arraylist, so they would need to share it. If this is possible how can I do this task?
View 1 RepliesI am working with an ArrayList of ArrayLists. Every time I add a new ArrayList to the main AL, it replaces all previously added ALs with the new one.Here's an example
Dim al As New ArrayList
Dim al2 As New ArrayList
Dim list() As String = {"one", "two", "three"}
[code].....
I would expect the Final line should be "Final: one, two, three" but that is not the case. And if I pause and check my ArrayList (al), it shows 3 items, that all have "three" in every spot which is what the last AL I added looked like.
I have a arraylist with plenty of lines. The array is populated from documents that have all kind of stuff in them, I got no control over what they contain. There's blank lines and double linebreaks so when I want everything in a textbox I clean it using this
[Code]...
My application reuses the same data returned from the database throughout the application. For example, a list of airport codes retrieved from the dataabase could be used on 5 different forms. In VB6 I placed the information into a Public Array. I'm looking for the best way to load and make available without hitting the database 5 times. After researching I found arraylist might be the way to go. My problem...I'm not sure I'm doing this correctly and not sure how to make the call to get the data out of the list.
[Code]...
I have an arraylist of a "Doctor" class containing Firstname, Lastname,etc. Some elements in this arraylist may be duplicates of others. I am trying to iterate through the arraylist and search for duplicates. Once i find a duplicate i want BOTH duplicates put into another array and removed from the original array.
here is my function
Public Function createArrayOfDuplicatesAndRemove(ByVal st As ArrayList)
Dim duplicates As New ArrayList()
Dim i, j As Integer
[code]....
How could something be out of range if i start at the end and work to the front?