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Ashwani_kumar wrote: After the above code is finished, WILL Garabage collector collect objects of Class1 and Class2 or not?
Yes. It will garbage collect instances of class1 and class2.
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Yes, it will. SuppressFinalize just tells the GC to remove the object from the finalization queue. It still gets collected.
The interviewer told you you were wrong?? Doesn't sound like a company I'd want to work for then...
Dave Kreskowiak
Microsoft MVP - Visual Basic
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Hi i working at the moment with serialization and i have a simple question.
When is it necessary to implement the ISerializable Interface and when is it enought to mark an klasse as [Serializable] ? 
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Marking a class as [Serializable] means all public members will be autoomatically serialized and deserialized. Uisng the ISerializable interface allows you fine control over this process.
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What do you mean with fine control ?
Do you mean it so,that i have to implement the [ISerializeable] interface then when my class have private members ?
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I don't know where J4amieC got this from, but adding [Serializable()] to a class works perfect for private as well as public members. To exclude a member from serialization you can use [field:NonSerialized()], when you want to upgrade a class with additional members that require to be serialized and maintain backward compatibility with the previous version of your class you can use [field:OptionalField()] on the member. Frankly, I don't ever use the ISerializable interface.
Standards are great! Everybody should have one!
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When i only mark a class as [Serializeable] then i got an SerializeException when i deserialize the class wich say that the necessary constuctor of the class is missing.
So thats why i implemented the ISerializeable-Interface with its methodes...
[SecurityPermissionAttribute( SecurityAction.LinkDemand, Flags = SecurityPermissionFlag.SerializationFormatter )]
void ISerializable.GetObjectData( SerializationInfo info, StreamingContext context ) {
this.GetObjectData( info, context );
}
public override void GetObjectData( SerializationInfo info, StreamingContext context ){
info.AddValue( "member", member );
...
}
...and the necessary constructor...
public ClassName( SerializationInfo info, StreamingContext context ){
member = info.GetValue( "member", typeof( member ) );
...
}
and cause that works fine was i thinking...
"Everytime when i wanna serialize a class i have to implement the ISerializeable-interface"
...but i read somewhere that it is enough in some cases to mark a class as [Serializeable].
BTW: i use BinaryFormatter to serialize and deserialize my classes.
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Marking your class [Serializable()] is only enough if all of your class members are themselves serializable: The exception you're getting is because one of your members doesn't support serialization.
If you don't really need the member just mark it as [field:NonSerialized()] and the exception will go away.
Otherwise, make sure it supports serialization. You can do this by marking the class as [Serializable()] itself. Determine which members should be saved, mark all others as [field:NonSerialized()], repeat the operation for your member's memberclasses (and enumerations), and so on, until you reach a class with only primitive types.
This mechanism provides an easier, faster and less errorprown way to serialize, I prefer it over ISerialzable...
Standards are great! Everybody should have one!
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Can a ToolStripProgressBar/progressbar take a float value to get incremented? If so then how?
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GunaChinna wrote: Can a ToolStripProgressBar/progressbar take a float value to get incremented?
No, it can't.
"Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning." - Rick Cook www.troschuetz.de
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i need an event in datagridview that will be called for every row that is binded to the grid in windows application. is there an event?
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Why do you need the event? there is always an option to access the data that is binded to the datagrid. If you populate your grid with a dataset try
<code>
foreach (System.Data.DataRow dr in dsModApp.Tables[0].Rows)
{
myList.Add(dr.ItemArray[0].ToString());
}
</code>
here i retireve the first column that is my select statement and thus position [0] in the dataset that is returned. Then i add the information to an arraylist for other purposes. hope it helps
Riaan Booyzen
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Hi,
You can use the RowsAdded event on the grid. It is fired when you add a row to the grid... It includes when you bind a dataset, then it is fired for every row.
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how to run console application in command prompt.
the keywords to run...
like csc Program.cs...........
whats it i dont know exactly how to do it.
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After you have compiled the application, you will find the .exe file in the bin folder. That is the program that you run.
---
Year happy = new Year(2007);
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csc compiles the cs file. The exe will be generated. You then run the exe.
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You know there is a Main method like this;
static void Main(string[] args)
args is an array which contains commands of your program.exe
check this one;
static void Main(string[] args)<br />
{<br />
if (args[0] == "hello")<br />
{<br />
Console.WriteLine("args[0] = {0}", args[0]);<br />
}<br />
if (args[1] == "world")<br />
{<br />
Console.WriteLine("args[1] = {0}", args[1]);<br />
}<br />
}
in this case, write "programpath\yourprogramname.exe hello world" and viola!
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"
I have done one desktop application in visual c#, i want to give
online updations for that software .
i need full flow and coding for this "
i think given link (http://www.codeproject.com/useritems/QuickClickOnceArticle.asp)has the answer for my question...
thank u ...keep in touch with me
we are in illusionary life
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Post follow-ups as replies in the same thread instead of starting a new thread.
---
Year happy = new Year(2007);
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You are welcome.
the last thing I want to see is some pasty-faced geek with skin so pale that it's almost translucent trying to bump parts with a partner - John Simmons / outlaw programmer
Deja View - the feeling that you've seen this post before.
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its only for testing purpose
ok Developer
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doing testing
ok Developer
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Stop wasting bandwidth. There are millions of messages on these forums. If it didn't work already I think we'd know!
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Why don't you test your own message board. This one works fine.
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Congratulations! You failed the test!
Dave Kreskowiak
Microsoft MVP - Visual Basic
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