How best to manage multiple dat files for serializable objects of the same class. If one of my data files goes past a particular size, I want to create a new file. I then loop through both files when I do processing. Is there any easier way to do this and what's the best size to do this at in terms of performance?
View 1 Replies
My VB project is large enough that it requires several files. It was originally developed as a Console App and I created each file as a MODULE. All modules could use subroutines, data structures and constants from other MODULES and everything worked fine. I needed to add basic windowing to the app and this required that the app be converted from a Console App to a Windows Forms App. The main window is Form1 which is not a MODULE but a CLASS. The problem is that some MODULE based functions cannot access subroutines, data and constants that are defined within the CLASS Form1 unless they are incorporated into the CLASS file and this makes the CLASS file very large. If I add a new Class file to the project, it also cannot interoperate with Class Form1 in the same way that multi-MODULE code interoperates.
How does one spread CLASS code across several files and still allow it to interoperate as if it were in a single file? Alternatively, how does one create several CLASS files that operate the way multiple MODULE files operate.I am sure that there are all kinds of best practices that I am violating but the goal to to get some prototype software working and interfaced to some lab equipment.
I have one class with <Serialize> attribute called Tree. And Tree class has an arraylist of TreeNode classes. Is it possible to use Soap to convert the Tree class and arraylist of TreeNode classes to one xml file or binary file? If it is possible, do i need to use <Serialize> attribute on TreeNode classes too? If not, what should i do then?
View 3 RepliesIf 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]....
My brain is fried at the moment, so here's the scenario.I have a form that adds a member to my VB.NET application.When I press submit I add their details: name and number as well as what products they want (internet and phone). Internet and Phone are their own class as is member.
I want to add that they HAVE whichever they have chosen and with the member store it.
[Code]...
As what happens is once the member is created (stored) I will go to input how much they have used, and then store that. But to do so I will need access to the internet and phone classes, which are associated with said member.
Is it possible to serialize an arraylist of objects into xml?Its damn urgent.Kindly reply.
View 1 RepliesUsing the following code:
Private Sub MakeMeSomeXmlBeforeRyanGetsAngry()
Dim db As New MyDBDataContext
Dim customer = From c In db.Customers Select c
[code]....
I am attempting to serialize my linq collection of customers. But it keeps throwing
Type 'System.Data.Linq.DataQuery`1[MyDB.Customer]' cannot be serialized. Consider marking it with the DataContractAttribute attribute, and marking all of its members you want serialized with the DataMemberAttribute attribute. See the Microsoft .NET Framework documentation for other supported types. My issue is that I have already marked the dbml Serialization Mode to UniDirectional and when I check the dbml codebehind all of the DataContract()> and DataMember()> elements are there. I have tried adding various dataloadoptions and setting deferredloading to false, but no luck.
I have an ArrayList in android that I'm trying to convert to a Base64 String, then passing that to a wcf service though JSON and the wcf service inserts the string into a database. Then I need to be able to read that from the database and deserialize it in a .NET application.
This is how I am serializing the ArrayList in android:
private String convertByteArrayToSave(byte[] b){
if(b != null){
return Base64.encodeToString(b,0,b.length,Base64.DEFAULT);
}else{
[Code]...
The ultimate goal is to be able to be able to create a list of these shapes in the .NET app or android app and be able to read the list in the .NET app and android app no matter where it was created from. I'm able to it when you create the Shape from .NET and read it into android using WCF but creating it in android.
I 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]....
I'm trying to move some Subs from my form file (Form1.vb) to a seperate class file to keep my Form1 neat. To complete my application, I plan on creating several more classes that do different things, but that will also be used by Form1.My problem is that even when I add the Inherits command to the seperate class file (Inherits Form1), the Form1 part of the inherits command is underlined in blue along with the names of all the controls I'm using on that form.When I hover my cursor over Form1 in the inherits command, I get the following error:Class 'EmailSample' cannot inherit from itself.I've never been able to get working with seperate class files right, even when I do it as shown in tutorial videos, if it's not an error like this, it's "btnSubmit is not declared" or something like that..
View 11 RepliesIn order to organize various methods of my MainForm class, I would like to categorize them into several files. Of course, the methods would still need to access form elements and additional variables I added in the MainForm class.
View 3 RepliesI need to look at the properties of an object and I cannot instantiate this object in the proper state on my dev machine. I need my client to run some code on her machine, serialize the object in question to disk and then I can analyze the file.[code]...
View 2 Replieswhat is the fastest way to serialize and compress a class?
what are the consideration to be made when a long list of objects(classes) have to be serialized and compressed one after the other?
I have an XML file:
<?xml version="1.0" encoding="UTF-8"?>
<MyProducts>
<Product Name="P1" />
[code].....
I'm trying to serialize this class:
<System.Serializable()> Public Class Person
Private _FirstName As String
Public Property FirstName() As String
[code]....
how to manage a class relationship I have these objects: A Layouts collection which implements a BindingList of Layout.A Parameters collection which implements a BindingList of Parameter. Each layout is to hold a set of settings, as defined in the Parameters Collection. Each layout should have a setting for every parameter, but the choices are constricted to the list of possible settings, kept in the Parameters object. For each setting there is only a single value. So it would look like this:
Layouts' Layouts; Collection [BindingList(Of Layout)]
Layout 1' Layout; Collection [BindingList(Of ...?? )]
Color Red' Parameter Key, [referene to parameter object..or..?]
Time Hour
Now, when I create a Layout object, I shall be restricted to chose one setting from each parameter, as already defined in the Parameter object, and assign to my layout object. And if I add/remove parameters, parameter settings, or the setting values, that should reflect in each layout; set to a default value, or deleted.
what type of class/object relationship shall I use for this Layouts collection in respect to the Parameters collection? I have no good understanding of the terms such as "inheritance", "implements", "interface", "abstract class" etc.. So I'm not able to see what concepts I need to study to make this come together nicely. Of course I could make a bunch of manual methods that keeps track of these things, but I have a feeling that I should make some type of relationship between these collections, which can make this somewhat easier..? I want to keep the collections as BindingLists down to the lowest level, in order to have two-way databinding with the UI controls.
CustomLineCap does not have the SerializableAttribute applied to it. I want to add a property of this type to an object graph that is currently being serialized/deserialized with a BinaryFormatter. I tried switching to XML serialization but it has a bunch of extra requirements and I don't want to fool with that esp. since it's not my code; it's some open source I downloaded. If there's a way to get BinaryFormatter to ignore the property, that might work. I'd rather subclass it; I just don't know if that will work either.
View 1 RepliesI am trying to figure out a class/struture to handle the following JSON format:
{
"ReturnData": [
{
"id": "msg2DoesNotExistName",
[Code]......
I may or may not have Data for ReturnData and SetValue (one or both at a minimum). I am trying to let the serializer handle most of the formatting without having to check for empty sections and single-item arrays.
how can i serialize a class containing a public event + withevents child classes each containing a public event?
View 3 RepliesI am trying to serialize a class that contains a generic list, and I am finding it all works with the exception of the generic list property. That is to say the other properties are serialized fine and no error is produced.
I have in the past serialized an arraylist - but I thought it was possible to do a generic list in the same way.
Am I missing something or is it not possible to serialize/deserialize a generic list - I have read mixed comments on this..
The relevant parts of the class that gets serialized is defined as..
<XmlInclude(GetType(cConfigUser)), _
Serializable(), XmlRoot(ElementName:="Config")> _
Public Class cConfig
[Code].....
I want to Serialize and Deserialize a configuration class containing a Dictionary to a XML file.Here is an exemple of what the class look like.
Imports
Public
Class
[code]....
When I try to serialize it with a XmlSerializer I get an exception saying to me that it is impossible to serialise Configuration.Parametres because it implements IDictionary.
DateTime
)
Configuration
System.Collections.Generic
I have a issue in a serialization process. I'm trying to Serialize a part of a bigger class.
I've a Class named MyBigClass with contain many property and method, and some of them may not be Serializable.
And I'm trying to Serialize one property of the MyBigClass class, witch is a SortedList named SubClassXList defined as SortedList(Int32, ClassX)
My problem is when it is time to serialize the SortedList (SubClassXList) a error tell me that a Class (say Class B) could not be Serialized because it is not marked as "Serializable", but the Class B in question have nothing to do with the SubClassXList in question.
The only thing I could see, is that the Serialization method try to also Serialize the Main Class (MyBigClass).
Here is the method that I use to Clone a Object ClassX do have the attribute "Serializable()"
Public Function CloneObject(ByVal pObjectToSerialize As Object) As Object
' Create a memory stream and a formatter.
Dim ms As New IO.MemoryStream()
[Code].....
I have the following problem, a table "table1" contains 10000 telephone numbers, this table is source for 5 combo box contained in a form, I need that when I select the first tel N in the first combo, this number is not any more available for the combo 2, when I select the second number in the second combo, the first 2 numbers of the table 1 are not any more available for the combo 3 etc. Every record (in form) contains 5 combo. The Tel N selected into the combo are source for other table called "table2". I've try with all the type of query between table 1 and table 2, and use the result as source for the combo, I've try with IIf but this is works only for the first combo.
View 3 RepliesHow can I create a GUI in vb.net similar to the one above?i.e.there are "buttons" on the left which changes the main window when they are clicked.One way I thought of is create many panels overlapping and show/hide them when a certain button on the left is clicked.
View 2 RepliesI'm dealing with the dreaded <Run/> in Silverlight 3 and having to programmatically create a <TextBlock> and its inlines:
Why dreaded? Because it doesn't work, I guess, the way you'd expect. Exhibit A, below, should produce BARN (with fancy colors for each character), but instead it produces: B A R N
EXHIBIT A
<TextBlock FontFamily="Comic Sans MS" FontSize="88">
<Run Foreground="#A200FF">B</Run>
<Run Foreground="#FF0000">A</Run>
[Code].....
I tried to make a class to manage the communication with Excel, but I am having problems.
View 18 RepliesI need to be able to serialize a class into a string, and I know of 2 patterns:
1) (normal) Serialization pattern
2) Proxy Serialization pattern
I've read [URL] (the only website in google that talks about the proxy-serialization pattern) and still cant find the advantage or benefit of using this pattern. Could someone explain what exactly is the proxy serialization pattern, or rather exactly what problem does the proxy-serialization pattern solves that the normal-serialization pattern doesn't solve?
I'm trying to serialize the main class in my VB solution. I've added the Serializable attribute at the top of my class like so:
[code]...
I'm guessing this is because you can't serialize the form that is attached to the class or something, but I really don't know what I'm doing. Can I serialize all of the objects contained in my Form1 class somehow, without getting this error? I don't want to store any data about the form controls, I just need to save all the objects that I've defined at the top of the Form1 class.
How to manage multiple tables with the same structure. However, due to the craptastical nature of VB, the solution doesn't really work. It specifically doesn't work because VB.NET requires the implementation of each method/property in the interface to be explicitly declared.
As for the problem that I'm really trying to solve, here it is:
I have many lookup/domain tables in the database that all have the same structure.
The items in these tables are typically used for drop downs in the interface.
I would like to avoid a bunch of boilerplate repository methods to retrieve the contents of these tables (one method per table really sucks when you have 40 tables).
I am not using the One True Lookup Table anti-pattern and this is not an option.
What would be the best way to manage multiple Picture Boxes?I am thinking an array, but if that is so, how would I build this array, and what would be stored in it?
View 1 Replies
