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- Previous
  - 1
    - Resizing a form by client height/width Hi, I just wonder if anyone can help me with this: I need to be able to resize a form by setting the size of its client area. Say, in Delphi i would do so: Form1.ClientHeight = 10; Form1.ClientWidth = 20; And the form will adjust its size so that client area will be as set. In .NET Form class there is a ClientRectangle property but it's read-only and trying to change any of it's properties causes a compile error: //----------------------------------------- Form1.cs(78): Cannot modify the return value of 'System.Windows.Forms.Control.ClientRectangle' because it is not a variable //----------------------------------------- Any ideas? Thank you, Andrey Tag: Resource Files Tag: 82100
  - 2
    - WindowEnumerator My application has regular document windows and floating windows above them. I want to iterate through all windows in z-order. I would have thought this capability would be built-in to the .net framework, but everything I can find on the archives says no - you need to use GetWindow(), thus: [DllImport("user32", EntryPoint="GetWindow")] private static extern int GetWindow(int hwnd, int wFlag); And the most logical thing seems to me to be to create a class that implements the IEnumerator interface. I suspect I need an additional external function - maybe GetTopWindow? to get a starting point; call that in .Reset() and GetWindow() in .MoveNext(). Am I on the right track? Can anyone provide examples of how to call these functions, eg what arguments to pass to them, how to coerce their result types into System.Windows.Forms, how to tell when I've reached the end? Thanks in advance. Peace, --Carl Tag: Resource Files Tag: 82096
  - 3
    - Updating a windows forms control from a thread I've gotten this question a couple of times in interviews and I don't know what they are looking for: How do you update a control's property, such as a textbox.text property, from a thread, in .NET? It seems to me you just update it normally. What are the interviewers looking for here? Thanks. - W Tag: Resource Files Tag: 82091
  - 4
    - Window Not Responding when running external programs I have a windows form application (C#) that launches multiple external batch files to do various installation tasks. I want to show some status on the win form, say simply update the text on a Lable control, "task 1 starting...", "Task 1 completed.", etc. However, the text for the label is not being updated/showed. I understand that the window is not responding to the Paint event anymore, How do I work around this? I see programs like InstallShield can do this, how did they do it? Tag: Resource Files Tag: 82088
  - 5
    - updating forms? my program draws a form and when you click the start button another form is drawn with a progress bar as it runs through a function. my issue is that when you click on another progrem then try to go back to the progress bar form it doesn't redraw itself. i tried using a: if(num%100==0) this.Update(); where num is just to count each time it runs through the loop. the program still works and finishes, but i can't seem to get the progress bar form to redraw itself. the this.Refresh() and Update() did not work either. any suggestions? btw...it's for an installer, so as it's uploading the database the progress bar goes, all of it works fine, just need the form to redraw itself if it loses focus. Tag: Resource Files Tag: 82086
  - 6
    - Corrupt resx with inherited forms Hi I have a bunch of corrupted resx files. My Cs files are okay. The code stil compiles and I can still show the forms. They still work, but I cannot edit them anymore. When I try to edit, the editor is convinced it are plain cs files and not forms. How can I recreate the whole design thing? VisStud 2003 kind regards Alexander Tag: Resource Files Tag: 82080
  - 7
    - Application Data Where do people put application data that is not user specific? For example, what if I have a xml file containing r/w data for a forms application, and the application may be used by users with limited rights. I cannot do any user management, and there is no reason to expose the user to the fact that these files even exist. Documents and Settings\All Users\Application Data\... is out because it is not available to restricted users. Application directory is out for the same reason. LOCAL_MACHINE hive in registry is out for the same reason. Confuzed Tag: Resource Files Tag: 82079
  - 8
    - How to draw image on form's title bar? Hi .. I wanted to repace form's default title bar with new One. So Can I draw Image on title bar. Pleae help Amar Tag: Resource Files Tag: 82075
  - 9
    - Validation problem I have a form that contains a TabControl. A tabpage on the control contains a TextBox that is bound to a field in a DataTable. The textbox is readonly. When the user clicks an Edit button, the field becomes editable. The user then has the choice of clicking the Cancel button, to discard any changes, or Update to finish the editing mode. Because the field cannot be NULL, when the user clicks Update the field should be validated. The textbox and the update button both have CausesValidation set to True, while the cancel button does not. For some reason however, the Validating event gets called when the user clicks the cancel button! Tag: Resource Files Tag: 82073
  - 10
    - Panel Hello, I have a panel on a form that holds a large number of controls. When I scroll the panel down and leave the form and then come back, the panel is still in the last position I left it. Is there a way to make the panel go back to the top position. I have tried the following with no success. Dim APoint as Point APoint = New Point(0, 0) frm1Main.Panel1.AutoScrollPosition = APoint Any Suggestions will be greatly appreciated, Chuck Tag: Resource Files Tag: 82072
  - 11
    - Question re Migration of VB6 App to .NET Our company develops and markets a client/server application which is written in VB6 as a rich Win32 Client/Server application. For a variety of technological reasons we are looking to migrate toward the .NET environment. However, a number of business factors make it impractical to accomplish this through an abrupt termination of the VB6 product and complete rewrite. Instead, we are looking to perform new development in .NET and slowly over time migrate existing code to .NET. At this time, we are looking to add a brand new module to our product. Obviously, the new module has some connection to the rest of the application in general. Be that as it may, it is sufficiently encapsulated unto itself that we are contemplating developing this new module in .NET. I'm interested in any advice which you can offer about how we might 'plug in' a module written in .NET into our VB6 application, specifically at the UI layer. We must provide the user with a seamless UI interface to our application, regardless of whether the user is interacting with a VB6 Form or with a .NET WinForm. Thanks very much for any advice which you can provide. - Joe Geretz - Tag: Resource Files Tag: 82071
  - 12
    - Huge Memory Usage Hello all, I am writing an application in C#, VB.NET which basicaly has a form with a few pictureBoxes on it and a TabControl with 3 tab pages - in each one a treeView and a ListView. In addition it loads a few other dll's as a reference which should not be memory consuming since each have a few simple classes. The thing is - this application can take up to 40,000KB of memory!!! Any idea where to start checking? How can I debug and see what part of my application is responsible for such memory usage? One more thing: I did some tests and noticed that even a simple form with nothing on it can take up to 15,000KB , am I doing something wrong??? Thanks, Haim. Tag: Resource Files Tag: 82069
  - 13
    - Problem with time in access HI In Access the date is like 21/12/2004 08:57:17 a.m. I need to update the record only if it was not created more than five minutes ago cmd = "UPDATE Sales SET Status = 'A' WHERE Mid(SalesDate,13,20) > #" & Mid(Microsoft.VisualBasic.DateAdd(DateInterval.Minute, -5, DateTime.Parse(DateTime.Now.ToShortTimeString, myFormat)), 13, 20) & "#" e.g When the time is 2:07:00 p.m. I can see the query goes to ADO like this "UPDATE Sales SET Status = 'B' WHERE Mid(SalesDate,13,20) > #2:02:00 p.m.#" but there is a syntax error, any idea thks Tag: Resource Files Tag: 82066
  - 14
    - Load event in user control Hi Gurus. I'm doing my first steps in the Winforms realm (I dealt mainly with ASP.NET until now), and I've stumbled across issue I really cannot solve and that seems extremely stupid to even ask about, so please forgive me... I need to execute some logic in the Load event of the control. Problem is - I can't find that event for user controls! This logic cannot be executed in the control's constructor, because its properties are not set yet. I don't want to modify the InitializeComponent method code, as I understand it is strongly un-recommened. In ASP.NET, there is a Load event for every control, which enables me to do just that. What is its equivalent in Winforms controls? Thanks! Tag: Resource Files Tag: 82062
  - 15
    - OnStartTask in UIP v 2.0 Hi, I'm using UIPAB v 2.0 in a Windows application. Following the UIP documentation I'm trying to "nest" two tasks. As I need to pass data between those two tasks, I;m using the OnStartTask method. This is what the documentation say about nesting tasks, using that method: "When the Add New Shipping Address process is ready to return, retrieve the TaskId for the Purchase Product process, which is stored in the current task's state, and invoke the OnStartTask method, passing the name of the navigator, the new address, and the original TaskId. If the task state for the specified task is found, the current view for that task is displayed." The problem is that the OnStartTask method requires an Itask implementation as its third argument and not plainly the TaskId. Should I implement the ITask just for the sake of resuming a suspended task? Thanks, Gwenda Tag: Resource Files Tag: 82061
  - 16
    - Adding Expand functionality to menus Hi, I'm trying to make an office-like expand menu, kind of like windows personalized menus. Right now, I've made my own custom menuItem, but the problem is when you click it, it will automatically close the menu interface. Is there a way to avoid this? Tag: Resource Files Tag: 82059
  - 17
    - set the listview highlight one line hello how can i set up the listview to high-light one line that is selected by mouse.now only the first column can be selectable. thank you. Tag: Resource Files Tag: 82055
  - 18
    - inherited forms Hi I seem to have a lot of problems with inherited forms in VS2003. Problem 1: Form1 has a txtEdit1. Form2 inheriteds from form1. But for some reason I would like to be able to access form1.txtEdit. When I put his modifier to protected instead of the default private. The control just disappears. IT IS GONE. (as in not longer their or very much away). Problem2: Form1 has a panel docked to the bottom, and a central panel docked to fill. Form2 needs a panel docked to top. For some sick reason this Form2.PanelTop always overlaps the central panel. It doesn't move the central panel down, making my first edit box INVISIBLE (as in not longer able to see it.) Anybody can confirm these issues? Please tell me that I'm doing something wrong here. Otherwise I have to assume that form inheritence doesn't work in C# VS2003. Kind regards Alexander Tag: Resource Files Tag: 82053
  - 19
    - Animated GIF Hi All, I want to show animated GIF on form. I used ImageAnimator class to Animate and StopAnimate method to stop the animation. But my client says that if he stops the animation in between then it should not stop at that postion, but it should complete its remaining rotation and then stop. e.g. if image starts rotating from its default postion and it goes till half cycle, at that moment if user stops it then it should complete the remaining half rotation and then stop. I am developing windows application using C#. Can anybody guide me regarding this problem. TIA Jaydeep Tag: Resource Files Tag: 82052
  - 20
    - Pass Values from .NET Windows App to Open IE Form I need to pass several values from a .NET Windows app into an EXISTING, OPEN IE form. I found the following code snipped for VB6 elsewhere on the forums--it's close: Dim IE As Object Set IE = CreateObject("InternetExplorer.Application") IE.Visible = True IE.navigate "http://www.kbb.com" Do Until IE.readyState = 4 DoEvents Loop IE.Document.emailsignup.email.Value = "MYEMAIL" But... * I need to do with a .NET Windows app, not VB6 * The IE window will already be open (the user must sign on and display it first--code cann't do that) * Once items on the IE form have been filled, the IE Window needs to be brought in focus so the user can fill in other form elements before submitting. Ideas? THANKS! Tag: Resource Files Tag: 82050
  - 21
    - Help on design decision with Tree structure data I have some data organized in a tree structure saved in an XML file and I want to display it in a TreeView control (the XtraTreeview of DevExpress). Each data item I would like to store in a class so that I can attach to it some logic (for example to each data is associated an Execute method). I wonder what is the best solution: subclass the TreeView Node and extend it adding all the logic I need or create a completely detached tree structure that contains my data and then link it somehow to the TreeNode component (probably this way is nicer since I don't match and mix business logic with the interface). One thing to notice is that the data will change (the user can modify it) so I'll have to take care of updating the data structure. Thanks a lot for any suggestion. Andrea Tag: Resource Files Tag: 82048
  - 22
    - Docking Toolbars In Windows Forms I have a main Toolbar and I also have a control that contains a toolbar. Is there a way of docking the control's toolbar besides the main toolbar? Or just docking the control's toolbar in the main Window's form (not just docking it within the control but outside of it in the main form)? Thanks in advance, Tom. Tag: Resource Files Tag: 82047
  - 23
    - datagrid wrapped textbox column Hi, I have a database table with long text fields. I use datagrid to display the data. For long text fields I build custom column which inherits from DataGridTextBoxColumn so I can wrap text in the datagrid cell. Custom TextBoxColumn is able to determine the column height. I overrided GetMinimumHeight and Paint methods. To edit row data I launch dialog window. My problem is : when I finished with dialog window text fields will be changed and I want datagrid/my custom column recalculate the height. But datagrid doesn't ask my custom column to do this (call GetMinimumHeight on custom column). Unless I manually resort datagrid - click on column header. Is there any solution to force datagrid to call GetMinimumHeight in custom column Thanks, Rynad Tag: Resource Files Tag: 82045
  - 24
    - Improving Performance I have a table called tblOrg in a SQL Server 2000 database. It has PK = Org_ID and a field called ParentOrg_ID so an Organization can have 0, 1 or many children but only one parent. I have a recursive function that builds a tree view of this and populates a tree control with Org_ID as the key and OrgName as the Text. Everything works great and performance is great as long as the data base and the application are on the same machine. But performance is unacceptable on a remote machine connected via a LAN. This is to be expected because the application is using sqlcommands to build the tree in the recursive function. Thus, the same sqlcommand is executed once for each organization. Obviously to get the most update version of the data you have build it from the database. But what other ways are there, that once built, one can reuse it rather that rebuild the tree? For example, the user selects OrgType from a dropdown (College, High School, Middle School) which populates the tree control with organization of that type, he then can select the Organization and populate the form with the details of the selected organization. When changing the OrgType, the control is completely rebuilt via the recurisive function which goes to the database. Instead, it would be nice to persist the previously clicked OrgTypes in memory so that the tree control is populated from memory if that OrgType is reselected. Since this tree control is used in other places in the application, it might be better to populate a dataset in memory so that all projects within the application can reference and populate the tree control that way or, better yet, all instances of the application can use it. For example, a user A opens his application which causes the Tree to be built. But user B opens his application but the application has access to the already populated tree because of User Aâ??s work (This organization structure does not change often). How can I do this? Any VB or C# code examples would be nice? WR Tag: Resource Files Tag: 82044
  - 25
    - IPC Hi, Is there a simple way of getting the text of a TextBox from one application, to another, on the same machine ? Tag: Resource Files Tag: 82043
- Next
  - 1
    - Merging Toolbars Hi, I have my main Windows Forms Application and a control that contains a context menu and a toolbar. Now I was able to merge the control's context menu with the application's main menu no problem by using the MergeMenu functions. I cannot find anything similar for merging toolbars. Is there a way for merging toolbars so that the control's buttons will be incorporated into the main application's toolbar and yet their functionality will be accessed from the control (just like when the menus are merged)? Thanks for your help in advance, Tom. Tag: Resource Files Tag: 82040
  - 2
    - How to generate Dynamic UI (similar to an HTML page) in wondows application Hi, I am developing an application which is similar to any pricing application (such as on Dell site where you customize your computer and get the price). The difference is -its not web application. Its Windows application. How can I dynamically generate UI Page from Database settings. The options will be radio controls or check boxes - enabled or not enabled - etc. The text associated with control may vary. Based on number of controls - it may vary the If some body have data model for this pricing application - could you please post it. Mallikarjun Tag: Resource Files Tag: 82039
  - 3
    - Xp style Title Bar Hi I wanted to replace my form title bar with xp style looking title bar. I am desgning applocation which will run on window 2000. Please help me how should i do that.. thanx.. Tag: Resource Files Tag: 82038
  - 4
    - Hide TabPages Hi I have made a custom TabControl and a Custom TabPage to go with it. The custom TabControl has a collection of custom Tabpages, which shows in the property editor. What I need to do now, is to hide the TabPages property inherited from TabControl. I whant the developer to only use my collection. Is this possible? TIA spif2001 Tag: Resource Files Tag: 82036
  - 5
    - Xp style title bar Hi I wanted to replace form's title bar with xp style looing title bar. Please help me , How should i do that _thanx Tag: Resource Files Tag: 82032
  - 6
    - Xp Style title bar Hi I wanted to replace my form title bar with xp style looking title bar. Please help me how should i do that.. thanx.. Tag: Resource Files Tag: 82030
  - 7
    - Xp Style title bar Hi.. I wanted to replace form's title bar with new one which will look like xp form title bar -Thanx Tag: Resource Files Tag: 82029
  - 8
    - scroll box width once more The scroll box of an independent scrollbar is affected by the difference between Maximum and Minimum like so (approximately): percentage of scrollbar occupied by scrollbox = 1000 / (Maximum - Minimum). Does anyone have the exact rules that apply here, i.e. how is the width of the scrollbox exactly determined? T.I.A. P.S. Visual C# 2005 Express Edition Beta Tag: Resource Files Tag: 82028
  - 9
    - Problem with Z-ordering !!! Hallo !! I have two panels docked on the right of the Form (z order index= p1: 0, p2: 1) and I want to third panel slide from the right= between those two panels (just like in Visual studio when you= put mouse over autohided SolutionExplorer its slides to view)= but because of z-ordering when I put my control on the form and= set his ChildIndex between those two I have opposite effect ? p2= is hided and p1 is visible ? any idea how to do this right ?= ????????? -------------------------------- From: Dominik Jeske ----------------------- Posted by a user from =2ENET 247 (http://www=2Edotnet247=2Ecom/) <Id>+0i5zKnydkOLYCQa33jwAg=3D=3D</Id> Tag: Resource Files Tag: 82022
  - 10
    - Form transparency issues Recently I wanted to create a small little program that could sit= on the desktop and not block the desktop wallpaper=2E There are= two methods to accomplish this ( that I am aware of )=2E 1) create a solid color bmp as a background image and set the= transparency key to match its color 2) specify the form's background color with a matching= transparency key Now my issues with both methods, but first it should be known= that I have set the forms to have no border or title bar and= have implemented code that allows me to click-and-hold anywhere= ( with exceptions listed below ) on the form and move it=2E The= data actually displayed on the form is just text and one= rectangle, all drawn by me ( there are no controls on the form= itself )=2E 1) I have two issues with this method, although it is what I'm= prefering to use at the moment=2E The first seems to be the= discrepancy between how the program is handled when the= computer's Color Depth is 32bit or when it is less than 32bit (= 16bit )=2E When the color depth is 32bit then I am able to click= on the entire area the form inhabits ( even that which is= transparent ) and move it, but if the color depth is less than= 32bit ( 16bit ) then only the drawn text or rectangle outline (= since it has no fill ) can be clicked to drag the program= around=2E Clicking on the transparent areas just passes the click= through the form to whatever is below ( even when I know the= form has focus )=2E I'd like to be able, regardless of the= desktop's color depth, to click anywhere within the form area= and move the application=2E The second issue I have with this method occurs when I take my= executable and put it on another PC ( my PC is XP Pro, the other= PC is XP Home=2E=2E Both SP2 )=2E The problem is similar, but a= little different=2E When the 2nd PC's color depth is at 32bit,= the transparency does not work=2E The green/lime ( that's the= transparent color I'm using ) background shows=2E Needless to say= this is not acceptable=2E When I change the color depth to less= than 32bit ( 24bit this time ), the transparency actually works,= but I come across the same issue of clicks on the transparent= areas just passing through=2E 2) With this method I have not tried it on a 2nd PC yet ( I don't= have it available where I am atm )=2E Its basically the same= "issue" as mentioned above with color depth less than 32bit,= except it does it with a color depth of 32bit and 16bit=2E Clicks= on the transparent areas just pass right through=2E I'm tempted= to just go with this method and possibly make one area on the= form that is meant to be used to drag it around ( similar to the= idea of the box that appears to move tables in MS Word ), but= I'm hoping there's a solution I'm unaware of before I do that=2E Anyways, all of this brings up some interesting questions=2E -What does color depth have to do with transparency handling? -Does the version of XP ( Home or Pro ) handle transparency= differently? Probably some more questions also=2E Not sure if it matters, but I'm doing all of this in C#=2E So any ideas to get pass any of these issues? Thanks in advance=2E -------------------------------- From: othell m=2E ----------------------- Posted by a user from =2ENET 247 (http://www=2Edotnet247=2Ecom/) <Id>Cr3Tj/paNUecZIBTNfeVRA=3D=3D</Id> Tag: Resource Files Tag: 82021
  - 11
    - MDI client problems In our app (VB) client forms are displayed based on what is on the current client form and the button pressed. A user never selects a client form. You can think of this process as filling out a very long form with many branches (e.g., IRS form 1040). Once a client form is loaded it is never unloaded - just hidden. I need help resolving these 2 problems: 1) Focus on a text box. I know i can't set the focus in the Load event but the Activated event only fires when the first client loads. Also, when the form is redisplayed (i.e., made visible) txtbox.focus, for example, doesn't work. What I do now is start a timer with a 10ms interval and set the focus in the timer event. I also think that sometimes when I leave the text box the Leave event doesn't always fire. There's got to be a better way. 2) Client form size. I would like the client form to be the maximum size that will fit in the MDI parent. The minimum size of the client forms is set to 720 X 540. If i set the WindowState to Maximized the first client is displayed maximized but all the others are displayed at their minimum size. When the first client form is redisplayed it is also displayed at the minimum size. This just drives the users crazy. What I've done is after showing the form the first time or making the form visible on redisplays I set the child.bounds = parents MdiClient.ClientRectangle. I also do this if the parent is resized. Now the client is almost maximum size except it still has its own margins. Tag: Resource Files Tag: 82020
  - 12
    - "Unroll" a form right to left I have a dialog form that I usually render from left to right using a timer. I.E. I start with a width and height of 1 and increase both in a timer event until I get to the desired height/width. Gives a neat little unrolling effect that doesn't add anything to the app but makes users go "oooh" and "aaah". My question is: how can I changing the unrolling effect so that the form unrolls from right to left (or from bottom to top)? The reason behind this is that I'm unrolling the form starting at the cursor position. If the cursor is too close to the right or the bottom, I want to unroll in the opposite direction. But the only direction I can go using Height and Width is down and right. Is there a way to go the other directions? Gracias por adelantado Kyle Tag: Resource Files Tag: 82017
  - 13
    - Locking Columns in DataGrid Hi, I have a datagrid with many columns. When I scroll to the right, I would like the 2 left most columns (first/last name) to always be visable when horizontally scrolling to the right. How do I do that? Thanks :D Tag: Resource Files Tag: 82015
  - 14
    - Datagrid and MVC Design Hello, I'm pulling my hair out on this one... Is it possible to have a Model-View-Controller architecture with a datagrid? Any thoughts or URLs would be greatly appreciated. Thanks, Jeff Tag: Resource Files Tag: 82010
  - 15
    - Scrolling in DataGridView in Visual Studio 2005 Hi I edit a cell in a DataGridView, and then would move to another cell in the DataGridView using mouse. Then the DataGridView as of now does scroll down to the last visited cell. But when I try to edit the same last visited cell, focus gets shifted to the first few visible rows as per the dimensions set for the DataGridView. To be exact it goes to the cell in the first row, and the same column. If I can say it this way, I would like to see same number of Rows visible at the top, after scrolling down to the selected row / cell using mouse on the GridView and even before the scrolling was done. I have tried out many weird ways to do it, but none of them does the job for me. A thing to add, I refresh my DataGridView every time, I do a cell value change, which would be followed by cell validating event and cell Error Check. I get the last recent edited cell in a moment, but scrolling to the same seems to be a problem for me. I tried capturing every other event here, but they do not give any solution. If any of you have worked on the same, let me know any ideas you have regarding the same. -- Thanks Arvind Note: In DataGrid of VS 2005 and VS 2003, we have a protected method GridVScrolled, which can be over written in its derived class and then we can use this to scroll to a particular row in the DataGrid. Refer to: http://www.thescarms.com/dotNet/ScrollDataGrid.asp for more information on the same implementation. Tag: Resource Files Tag: 82004
  - 16
    - scrollbox width Am I missing something or does a scrollbar (be it the h or v flavour) not support setting the scrollbox width explicitly? How can I set the box width explicitly? T.I.A. Tag: Resource Files Tag: 82003
  - 17
    - OnDragEnter doesn't fire on empty TabControl Can someone tell me why you cannot drag something onto a tabcontrol with zero tabpages? I have a kind of 'docking' interface and relies heavily on GDI+, a screenshot is available here: http://netron.sourceforge.net/Biotron3Shot.jpg You can move tab pages in the different panes, unless it's totally empty (TabCount=0). Is there an alternative? Thanks a lot, Swa [The Netron Project, http://netron.sf.net] Tag: Resource Files Tag: 81999
  - 18
    - DataView SQL Equivalents Needed Hi all, Situation: - I have a DataTable ["french"] in a DataSet ["lexicon"]. - The DataTable is filled with data from an Access mdb database. Problems: - I need a DataView for the DataTable that filters 5 'random' records (SQL equivalent: "ORDER BY Rnd..."). - I need a DataView for the DataTable that filters the 'top 10' records (SQL equivalent: "SELECT TOP..."). Thanks for your time, Frederik Tag: Resource Files Tag: 81998
  - 19
    - How to check if AddHandler has been done How can I determine if a AddHandler already has been specified for a specific event. Sub TestEvents() Dim Obj As New Class1() ... AddHandler Obj.Ev_Event, AddressOf EventHandler ... 'lets say that i HERE want to check if a AddHandler has been registered on "Obj.Ev_Event" Obj.CauseSomeEvent() ' Ask the object to raise an event. End Sub I have not understood where actually all event handler connections are stored. In a global variabel, or on each object ? Can I use System.ComponentModel.EventHandlerList ? How then do I access it? Best regards, Benjamin, Sweden Tag: Resource Files Tag: 81996
  - 20
    - Error creating window handle. Does anyone have any idea what might cause this: System.ComponentModel.Win32Exception: Error creating window handle. I get this when restoring a minimized and hidden window with the code below. I have used similar code for restoring forms in many applications on many servers and systems. With this code in this particular application, on some machines, the process works flawlessly, yet on some machines, it throws the error at ShowInTaskbar = true; Any help would be greatly appreciated! Regards, Dale Preston ServerRestore sr = new ServerRestore(); // a form that gets and validates a password before allowing the server form to be restored. DialogResult dr = sr.ShowDialog(); if (dr == DialogResult.OK) // If the password is correct { this.ShowInTaskbar = true; this.WindowState = FormWindowState.Normal; this.Activate(); } sr.Dispose(); } Tag: Resource Files Tag: 81990
  - 21
    - Unhandled Exception Error I am using vb.net (VS 2003) on an XP and get the following error message: An unhandled exception of type 'System.NullReferenceException' occurred in system.windows.forms.dll Additional information: Object reference not set to an instance of an object. on the following sub (The line with ***) Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean) If disposing Then If Not (components Is Nothing) Then components.Dispose() End If End If MyBase.Dispose(disposing) End Sub All I am trying to do is to close a form using the following code: LVLabelApp.LblApp.Quit() LVLabelApp.LblApp = Nothing Me.Close() Please help????????? Tag: Resource Files Tag: 81987
  - 22
    - Any good books or online tutorials for CollectionEditors? Hello all, Rather than besiege the group with what is sure to be a host of questions I would prefer to try to learn these things on my own. I need to develop a customized collection editor where some of the properties of the items in the collection require, themselves, custom editors in the property grid. Although the .NET docs are (roughly) complete, they are hardly well organized for someone who doesn't even know what he's trying to look for. So..., if anyone has some good suggestions for books that deal with the more advanced details of .NET forms or online tutorials that show the ins & outs of customized UI stuff like this I would appreciate it! -- TB Tag: Resource Files Tag: 81983
  - 23
    - Q: DataGrid [Attribute] ??? Question/issue: I'm using a custom data source for my (WinForms) datagrid: public class MyDataSource : IList { public void AddRow(string firstName, string lastName); // ... } each row is a: public class MyDataRow { public string FirstName { get { return firstName; } } private string firstName; //... } Then: MyDataSource data = new MyDataSource(); data.AddRow("Bret", "Pehrson"); //... grid.DataSource = data; Now, everything displays fine in the DataGrid. I'm not using any designer or other parameters to set up the columns, just letting the data source and grid figure that out. The only problem that I have is that I want the DataGrid to display "First name" as the column header and not "FirstName" as is currently happening. What I'd hope would be possible is some attribute on the FirstName property that would specify the column name, something like [HeaderText("First name")] public string FirstName { get { return firstName; } } Is there such a beast? I've looked and looked, and can't find anything. I want all of this to be done in the code for the MyDataRow/MyDataSource class. Thanks Tag: Resource Files Tag: 81982
  - 24
    - printing checks Hi, I'm developing accounting software for a small business and I'm just wondering what would be the best way to print checks using old dot matrix printer? Currently, I prepare the printing page with Browser control using html template with the check picture as the background, but how can I make it to print one check at a time, i.e. printing only 1/3 of the page since the size of the check is 1/3 of the A4 paper? I'm using C# and winforms. Any help will be greatly appreciated. Tag: Resource Files Tag: 81981
  - 25
    - How to listen to even on another control I have a class with a MyEvent event. I want to trigger this event whenever an event is triggered on a treeview on the same form. How can I do this? I guess what I am trying to figure out is how to wire a treeview's event to MyEvent. -- Thanks for your help. Harshad Rathod Tag: Resource Files Tag: 81980

Hi All - Happy Holidays

I'm struggling to understand how to make resource files work in a
multi-lingual vb.net windows app - and feel real stupid.

I've read MCSD books and Visual Studio Help articles, but just don't get it.
Duh.

The ResourceManager class and resource files within a project should be able
to communicate.

Any help or reference to examples greatly appreciated

Regards,
SC

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Re: Resource Files by Maqsood

Maqsood
Tue Dec 28 01:13:48 CST 2004

Please read about Satellite Assemblies
1. Creating:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpguide
/html/cpconcreatingsatelliteassemblies.asp
2. Retrieving resources:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpguide
/html/cpconLocalizingResources.asp

Maqsood Ahmed [MCP,C#]
Kolachi Advanced Technologies
http://www.kolachi.net

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