Reading access component from other thread.(thread stopped excepti

I have some unreasonable issue while reading access component
from other thread.
I have a Form class which includes TreeView, this tree view
includes some TreeNodes , lets say 2 .
In my Form class I define an arraylist which include reference
to those TreeNodes.

ArayList myTNodesPackage (define ...)
myTNodesPackage .Add….

Now I have:
myTNodesPackage[0] = treeNode1
myTNodesPackage[2] = treeNode2
I create tread and start it as following:
// ExecuteThread thread Class
m_ExecuteThread = new ExecuteThread(t his);
this.ExecuteCom mandsThread = new Thread(new
ThreadStart(m_E xecuteThread.Go _Execution_AllT ests));
this.ExecuteCom mandsThread.Sta rt();

In my thread Go_Execution_Al lTests function start running and do
something until the following line code:

rootNode = (TreeNode)this. myForm.myTNodes Package [0];
Now I can see that this access cause somtiong since my debug
start respond sloly.I see that rootNode.Text is OK but all other
properties are not available "error : cannot obtain value".

If I continue debugging the following code I will get an
exception "Thread was being stoped." .
if(rootNode.Che cked==false)

Any one can explain me why ? and what should I do ?
Why thread stopped ?

=?Utf-8?B?W1lvc2ld?= <Yo**@discussio ns.microsoft.co m> wrote in
news:40******** *************** ***********@mic rosoft.com:

I have some unreasonable issue while reading access component
from other thread.
I have a Form class which includes TreeView, this tree view
includes some TreeNodes , lets say 2 .
In my Form class I define an arraylist which include reference
to those TreeNodes.

ArayList myTNodesPackage (define ...)
myTNodesPackage .Add….

Now I have:
myTNodesPackage[0] = treeNode1
myTNodesPackage[2] = treeNode2
I create tread and start it as following:
// ExecuteThread thread Class
m_ExecuteThread = new ExecuteThread(t his);
this.ExecuteCom mandsThread = new Thread(new
ThreadStart(m_E xecuteThread.Go _Execution_AllT ests));
this.ExecuteCom mandsThread.Sta rt();

In my thread Go_Execution_Al lTests function start running and do
something until the following line code:

rootNode = (TreeNode)this. myForm.myTNodes Package [0];
Now I can see that this access cause somtiong since my debug
start respond sloly.I see that rootNode.Text is OK but all other
properties are not available "error : cannot obtain value".

If I continue debugging the following code I will get an
exception "Thread was being stoped." .
if(rootNode.Che cked==false)

Any one can explain me why ? and what should I do ?
Why thread stopped ?

Yosi,

Only the form's thread, or a thread it starts thru Invoke or BeginInvoke,
can modify a visual control.

http://msdn.microsoft.com/library/de...ms06112002.asp
--
Hope this helps.

Chris.
-------------
C.R. Timmons Consulting, Inc.
http://www.crtimmonsinc.com/

I know that read access is avialable from another threades but write is not
accessable.
And also I know that this in framewark 2 not 1.1.
thanks for helping.

"Chris R. Timmons" wrote:

=?Utf-8?B?W1lvc2ld?= <Yo**@discussio ns.microsoft.co m> wrote in
news:40******** *************** ***********@mic rosoft.com:

> I have some unreasonable issue while reading access component
> from other thread.
> I have a Form class which includes TreeView, this tree view
> includes some TreeNodes , lets say 2 .
> In my Form class I define an arraylist which include reference
> to those TreeNodes.
>
> ArayList myTNodesPackage (define ...)
> myTNodesPackage .Add….
>
> Now I have:
> myTNodesPackage[0] = treeNode1
> myTNodesPackage[2] = treeNode2
> I create tread and start it as following:
> // ExecuteThread thread Class
> m_ExecuteThread = new ExecuteThread(t his);
> this.ExecuteCom mandsThread = new Thread(new
> ThreadStart(m_E xecuteThread.Go _Execution_AllT ests));
> this.ExecuteCom mandsThread.Sta rt();
>
> In my thread Go_Execution_Al lTests function start running and do
> something until the following line code:
>
> rootNode = (TreeNode)this. myForm.myTNodes Package [0];
> Now I can see that this access cause somtiong since my debug
> start respond sloly.I see that rootNode.Text is OK but all other
> properties are not available "error : cannot obtain value".
>
> If I continue debugging the following code I will get an
> exception "Thread was being stoped." .
> if(rootNode.Che cked==false)
>
> Any one can explain me why ? and what should I do ?
> Why thread stopped ?

Yosi,

Only the form's thread, or a thread it starts thru Invoke or BeginInvoke,
can modify a visual control.
http://msdn.microsoft.com/library/de...ms06112002.asp
--
Hope this helps.

Chris.
-------------
C.R. Timmons Consulting, Inc.
http://www.crtimmonsinc.com/