C#

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Executin Plugins CWIZO17-Jan-04 6:54 CWIZO 17-Jan-04 6:54  Hi all, I have this code that loads-up some plugins(dll files), and I'm having trouble executing them. Every plugin has a ExecutePlugin(string Commands) method defined. So when I wan't to execute all of my plugins from my main program I have this code: foreach ( Type DllType in Plugins ) { ICowPlugin Plugin = (ICowPlugin) Activator.CreateInstance ( DllType ); Plugin.ExecutePlugin ( "Plugins rox" ); MessageBox.Show ( Plugin.PluginName ); } and strange is that the MessageBox.Show(Plugin.PluginName); indeed shows the name of the plugin, but code inside of ExecutePlugin() is aparently not executed. I have a simple MessageBox.Show() inside the plugin's ExecutePlugin and the message box is not shown Q:What does the derived class in C# tell to it's parent? A:All your base are belong to us! Re: Executin Plugins Heath Stewart17-Jan-04 10:21 Heath Stewart 17-Jan-04 10:21  Try debugging your application. Put a breakpoint on the Plugin.ExecutePlugin statement, as well as on the first statement in the implementation of ICowPlugin.ExecutePlugin. As long as all your assemblies are compiled with the DEBUG preproc def (i.e., a Debug build) and loaded into your solution, you should have no problem determining if the method is actually executed (and it should be if no exception is being thrown, which doesn't seem to be the case since the next statement is executed) and if something is going wrong inside the method. An exception might be thrown in the implementation that you're also catching and returning from, so maybe you're not getting the results you want. Debugging this method will help determine the cause of the problem.   -----BEGIN GEEK CODE BLOCK----- Version: 3.21 GCS/G/MU d- s: a- C++++ UL@ P++(+++) L+(--) E--- W+++ N++ o+ K? w++++ O- M(+) V? PS-- PE Y++ PGP++ t++@ 5 X+++ R+@ tv+ b(-)>b++ DI++++ D+ G e++>+++ h---* r+++ y+++ -----END GEEK CODE BLOCK----- Re: Executin Plugins CWIZO17-Jan-04 22:13 CWIZO 17-Jan-04 22:13  Hi, Im relativlly new to C#, so I dont really know what to look for. THe method aparently works just fine and is "error-less" becouse when I compiled the plugin the compiller didn't return me any warnings or errors. THe ExecutePlugin inside the plugin looksliek this: public void ExecutePlugin ( string Commands ) { MessageBox.Show ( Commands, PluginName ); } and liek I said I cen get the PluginName property inside my main programm, but the messagebox dosen't show ... Q:What does the derived class in C# tell to it's parent? A:All your base are belong to us! what kind of project gordingin17-Jan-04 6:38 gordingin 17-Jan-04 6:38  I am just starting out with C# and want to know how can I tell what kinda of project the code was started from by looking at the code. and by project I mean when you create a new project, from the wizard.... Thanks Ralph Re: what kind of project Heath Stewart17-Jan-04 10:16 Heath Stewart 17-Jan-04 10:16  Mostly, look at the class that's generated. If it extends System.Windows.Forms.Form, is most likely a Windows Forms property. If it inherits from System.Windows.Forms.UserControl is a user control project. If it just includes a static Main method and not much else, it's probably a console application. If you have a bunch of web forms (.aspx files) then you've got a web project. The best thing you can do is just start playing around with the different types and see what's generated, as well as read some of the articles in the .NET Framework SDK. There's also samples and tutorials out there. Also, don't forget that CodeProject is a great resource and has many articles that often go in-depth into the technologies they target such as Windows Forms or ASP.NET.   -----BEGIN GEEK CODE BLOCK----- Version: 3.21 GCS/G/MU d- s: a- C++++ UL@ P++(+++) L+(--) E--- W+++ N++ o+ K? w++++ O- M(+) V? PS-- PE Y++ PGP++ t++@ 5 X+++ R+@ tv+ b(-)>b++ DI++++ D+ G e++>+++ h---* r+++ y+++ -----END GEEK CODE BLOCK----- changing report at runtime H r M17-Jan-04 4:17 H r M 17-Jan-04 4:17  I have to change my report at runtime how to I can do it? (I use CrystalReport 9) please help me. Re: changing report at runtime Heath Stewart17-Jan-04 10:13 Heath Stewart 17-Jan-04 10:13  Define "change". If you mean change the layout, the ReportDocument has a property, ReportDefinition, that gets you the collection of sections, etc. I'm not sure how much of this you can change at runtime, but you might be better off asking in the Crystal Reports forums at http://support.businessobjects.com/forums/default.asp?ref=devzone_main[^]. If you mean to change the data source on which to report, see the ReportDocument.SetDataSource method. Designing your reports to use disconnected DataSet objects (especially strongly-typed ones that you can build report defintions from) makes reusing your reports on different systems and with different database easy!   -----BEGIN GEEK CODE BLOCK----- Version: 3.21 GCS/G/MU d- s: a- C++++ UL@ P++(+++) L+(--) E--- W+++ N++ o+ K? w++++ O- M(+) V? PS-- PE Y++ PGP++ t++@ 5 X+++ R+@ tv+ b(-)>b++ DI++++ D+ G e++>+++ h---* r+++ y+++ -----END GEEK CODE BLOCK----- Limiting MDI child location phimix17-Jan-04 3:00 phimix 17-Jan-04 3:00  Hi We have an MDI application, where we would like to limit the possible locations of the MDI child forms. Is it possible to set up some kind of borders that limit child location to some part of the client area? Currently we simply move the form back inside the borders if it dragged outside of the borders. Unfortunately, this has some sideeffects (e.g. client form can be moved far outside the borders before the moved event is raised) BTW: Is it possible to disable the scroll bars that appears on a MDI parent? Thanks, Mads Re: Limiting MDI child location Amalorpavanathan Yagulasamy(AMAL)17-Jan-04 9:28 Amalorpavanathan Yagulasamy(AMAL) 17-Jan-04 9:28  Yes, you can fix the Child form location MDI form. You have to set the following properties in Child form Form Location Form Border = none Control box= false MaxBotton=false MinBotton=false Window Startup position=normal Regards, Amal amal_forum@hotmail.com Re: Limiting MDI child location phimix18-Jan-04 19:52 phimix 18-Jan-04 19:52  Thanks for your reply - but wouldn't that make the form unmoveable? What we want is to be able to move the form around within a limited area. Re: Limiting MDI child location Amalorpavanathan Yagulasamy(AMAL)20-Jan-04 8:17 Amalorpavanathan Yagulasamy(AMAL) 20-Jan-04 8:17  You can set the child form boundry in Child form MOVE event. Regards, Amal amal_forum@hotmail.com Java Applet/Servlet vs. .NET blue_angel17-Jan-04 2:42 blue_angel 17-Jan-04 2:42  Hi, I want to ask if there is in .NET an similar technology to the Java Applet/Servlet. And if such a thing exists pls help me with some documentation resources. Thanks a lot. Re: Java Applet/Servlet vs. .NET Amalorpavanathan Yagulasamy(AMAL)17-Jan-04 9:44 Amalorpavanathan Yagulasamy(AMAL) 17-Jan-04 9:44  refer the following URLs www.gotdotnet.com/team/compare http://java.oreilly.com/news/farley_0800.html Regards, Amal amal_forum@hotmail.com Re: Java Applet/Servlet vs. .NET Heath Stewart17-Jan-04 10:03 Heath Stewart 17-Jan-04 10:03  I wrote an article a long time back on another site that I'm working on porting to CodeProject as a new series. See http://www.devhood.com/Tutorials/tutorial_details.aspx?tutorial_id=388[^] for more information about hosting .NET controls in a web page. If exposed as COM control correctly (which the articles covers), you can even script them and handle events.   -----BEGIN GEEK CODE BLOCK----- Version: 3.21 GCS/G/MU d- s: a- C++++ UL@ P++(+++) L+(--) E--- W+++ N++ o+ K? w++++ O- M(+) V? PS-- PE Y++ PGP++ t++@ 5 X+++ R+@ tv+ b(-)>b++ DI++++ D+ G e++>+++ h---* r+++ y+++ -----END GEEK CODE BLOCK----- Re: Java Applet/Servlet vs. .NET Dmitriy Kostovetskiy17-Jan-04 12:44 Dmitriy Kostovetskiy 17-Jan-04 12:44  Here is an article that shows how to write an applet in C#: http://www.csharphelp.com/archives/archive109.html[^] Select Grid Cell value Ashraf Alsadiq17-Jan-04 2:23 Ashraf Alsadiq 17-Jan-04 2:23  How to read the current selected or clicked grid cell value as well as the whole row to which that cell belongs ? Appreciate your help. MSG: Life is whole learning experience. Re: Select Grid Cell value Mazdak17-Jan-04 2:28 Mazdak 17-Jan-04 2:28  Overriden CurentCellChanged event or : dg[dg.CurrentCell.RowNumber,dg.CurrentCell.ColumnNumber] Mazy No sig. available now. Re: Select Grid Cell value Ashraf Alsadiq17-Jan-04 2:42 Ashraf Alsadiq 17-Jan-04 2:42  Thanks, Got it .. Here it's: . . MessageBox.Show((datagridBrowse[i,j])ToString()); . . Many Thanks 44. Life is whole learning experience.. how can i save this? Peter Reiter16-Jan-04 23:03 Peter Reiter 16-Jan-04 23:03  hi i am currently writing an application where the user can save as much as he wants those are splitted in A[] and B[] (String[]) a contains A name and B contains a path related to the name of A i want that A will be shown in a listbox (all A's) and when you click on it i want a messagebox showing A and B together (the right one, e.g. A[5] and B[5]; not A[4] and B[2] or so) i am open for all ways of saving, but i do not have an own idea how i can make this thx Re: how can i save this? Mazdak17-Jan-04 0:29 Mazdak 17-Jan-04 0:29  You can create a serialize class and encapsualte your class there and store your data in a XML file,for working with XML there are lots of projects in this site. Or if you do not want to store it in a XML,you can store that class in dat file. Mazy No sig. available now. Re: how can i save this? Corinna John17-Jan-04 6:34 Corinna John 17-Jan-04 6:34  1) You can use a ListView instead of the ListBox, and store the path (B) in the .Tag property of each ListViewEntry. When you click a name (A), you can read the path from the Tag property: for(int n=0; n Windows Application Screen Resolution problem koosala16-Jan-04 18:13 koosala 16-Jan-04 18:13  I have a windows application which has a lot of controls placed all over the screen. I have developed it in screen resolution of 1024 X 768. The problem is that when the resolution becomes more, the controls occupy lesser space on the screen with lot of free area. If the resolution decreases, each control requires more space on the screen and many controls go out of the screen with scroll bars being displayed. Is there a way of dynamically resizing the form controls based on the resolution of Windows? Koos Re: Windows Application Screen Resolution problem Mazdak16-Jan-04 19:27 Mazdak 16-Jan-04 19:27  First: There are many applications that they fir for one resolution and warn it before run. But beyond that after your InitializeComponent() add a method that set the methods based on this resolution. You can get the resolution with SystemInformation.VirtualScreen property,and every control has its own Size property. Mazy No sig. available now. Re: Windows Application Screen Resolution problem Heath Stewart16-Jan-04 19:40 Heath Stewart 16-Jan-04 19:40  In addition to what Mazdak was talking about, you can also make use of the Dock property that most of the controls expose. Effective docking can help decrease those problems. If you're not starting with a clean surface, though, pay close attention to the order in which controls are added to the container's (ex: Form) Controls collectoin. They must be added in reverse order. For instance, if you have the "explorer layout" like so: +-+---+ | | | | | | +-+---+ , you'll want a TreeView, Panel (to further dock additional controls), or some other control set to <cod>DockStyle.Left, then a splitter, then another control with DockStyle.Fill. The order in which these are added are in reverse of how I mentioned them: Controls.AddRange(new Control[] { panel2, splitter1, panel1 }); When you add these controls to the designer for the first time (i.e., on a "clean surface"), add them in the order that I first mentioned above. VS.NET automatically adds the most recently added control as the first control in the array above. Just play around with docking a little bit. Anchoring to opposing sides is also helpful but while docking and anchoring share some behavior in common, they are also used to solve distinct problems (they are most like each other when anchoring against opposing and adjacent sides, but docking can't move a control relative to adjacent sides).   -----BEGIN GEEK CODE BLOCK----- Version: 3.21 GCS/G/MU d- s: a- C++++ UL@ P++(+++) L+(--) E--- W+++ N++ o+ K? w++++ O- M(+) V? PS-- PE Y++ PGP++ t++@ 5 X+++ R+@ tv+ b(-)>b++ DI++++ D+ G e++>+++ h---* r+++ y+++ -----END GEEK CODE BLOCK----- Re: Windows Application Screen Resolution problem leppie17-Jan-04 7:05 leppie 17-Jan-04 7:05  DockStyle in IMO is the easy way out, if you want control, use anchors. leppie::AllocCPArticle("Zee blog"); Seen on my Campus BBS: Linux is free...coz no-one wants to pay for it.

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