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Changing label1.text in MainForm from a thread

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Changing label1.text in MainForm from a thread, Using a thread to update a text on a label in some other thread.

martinSc#ei	10 Mar, 2008 - 06:49 AM Post #1
New D.I.C Head Joined: 10 Mar, 2008 Posts: 2	In my program i have one thread besides the main thread. This thread(not main) reads from a database;while it does that i want a label i my MainForm to display the status. When i try to compile the program it says that "Label1 is not an object in the current context" or something similar. Isn't it supposed to be possible to share data among threads? Can't objects in the mainform only be manipulated thru the main thread? I have tried the stuff i figured out myself could be wrong without success. Any suggestions?
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PsychoCoder	RE: Changing Label1.text In MainForm From A Thread 10 Mar, 2008 - 06:53 AM Post #2
using DIC.Core; Joined: 26 Jul, 2007 Posts: 9,483 Thanked: 161 times Dream Kudos: 9075 Expert In: VB, VB.Net, C#, SQL, ASP, ASP.Net, Web Development, HTML, CSS, Win32 API, Javascript, mySQL, J#, Boo.Net My Contributions	You cannot update a UI control from outside the thread which created the control. You can, however, marshal the call, using a delegate, onto the thread which did create the control and update it that way. It's explained more in this tutorial on Cross thread communication in C#. Happy reading
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martinSc#ei	RE: Changing Label1.text In MainForm From A Thread 10 Mar, 2008 - 07:22 AM Post #3
New D.I.C Head Joined: 10 Mar, 2008 Posts: 2	QUOTE(PsychoCoder @ 10 Mar, 2008 - 07:53 AM) You cannot update a UI control from outside the thread which created the control. You can, however, marshal the call, using a delegate, onto the thread which did create the control and update it that way. It's explained more in this tutorial on Cross thread communication in C#. Happy reading THANKS!
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PsychoCoder	RE: Changing Label1.text In MainForm From A Thread 10 Mar, 2008 - 07:26 AM Post #4
using DIC.Core; Joined: 26 Jul, 2007 Posts: 9,483 Thanked: 161 times Dream Kudos: 9075 Expert In: VB, VB.Net, C#, SQL, ASP, ASP.Net, Web Development, HTML, CSS, Win32 API, Javascript, mySQL, J#, Boo.Net My Contributions	Anytime, glad I could help
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