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- Previous
  - 1
    - Contextmenu & TreeView Hi all, if I assign a context menu to a treeview and popup the contextmenu with the APP-key the context menu appears in the center of the treeview control and not at the selected treenode. Is there a chance to change this behaviour? Regards Peter Tag: Refresh MainMenu Tag: 52203
  - 2
    - Reurning Data Types Hello. I have a combo box that I would like to populate with all the data types that the .net framework supports (String, Int, DataSet etc). Is there any way that this can be done dynamically? Cheers all, Jon Tag: Refresh MainMenu Tag: 52200
  - 3
    - how to get the desktop resolution? i need the current desktop resolution(e.g. 1024x768). where can i find it? i need it because i want a form always to display at the bottom right corner of the desktop. thanks stoyan Tag: Refresh MainMenu Tag: 52199
  - 4
    - Visual Studio 2002 Debug Crash Hallo, I have quite a sizable VB application. Part of the application writes a structure array to a database. As I was debugging the loop I noticed some strange behaviour: At first only on itteration 329 sLine = "Now, '" & Patient.Test & "', '" & sDate & "' But after a Complete Rebiuld on itteration 331 sStr = CStr(comStruct(i).A) & "." & CStr (comStruct(i).B) After removing the a removing an unralated project the program crashed on itterestion 329 on yet another harmless line. I think the way in which the program compiles should have no effect on where this crashes at runtime. Anyway the program crahes in such a way that the debugger is also not available Does anyone know why this happens and how I can correct it? Nigel... Tag: Refresh MainMenu Tag: 52198
  - 5
    - problem in smart client application Hi all i m using open file dilogue in smart client application. but this through secuirity exception. but sam application is working fine with window application. pls help. kapil Tag: Refresh MainMenu Tag: 52195
  - 6
    - problem in smart client application Hi all i m working on a smart client application. in this application i have need to open a fle using open dilogue. this application is perfectly working as form of windows form application but in as smart client application secuirity problem exception trowgh. pls suggest what to do now. kapil Tag: Refresh MainMenu Tag: 52194
  - 7
    - problem to call dll function in .NET I have the following code in VB6 to create a picture object: Dim IPic As IPicture Private Declare Function OleCreatePictureIndirect _ Lib "olepro32.dll" ( PicDesc As PicBmp, RefIID As GUID, _ ByVal fPictureOwnsHandle As Long, IPic As Image) As Long The IPic is to store the picture object created. After I convert this code to VB.NET, it becomes Dim IPic As Image Private Declare Function OleCreatePictureIndirect _ Lib "olepro32.dll" ( PicDesc As PicBmp, RefIID As GUID, _ ByVal fPictureOwnsHandle As Integer, IPic As Image) As Integer r = OleCreatePictureIndirect(Pic, IID_IDispatch, 1, IPic) The problem is that IPic is now the data type of Image while the last parameter of the OleCreatePictureIndirect () function in olepro32.dll is still expecting a data type IPicture. So, when running the code, the program thows an execption that the data type is not matched. Can someone help: how to solve this problem. To see the all the code, please go to: http://support.microsoft.com/default.aspx?scid=kb;en- us;161299 (This is to capture and print a VB6 form. Now I hope I could upgrade it to VB.NET) Thanks, Tag: Refresh MainMenu Tag: 52191
  - 8
    - Winform with checkbox in datagrid I have a collection that is create by inheriting from CollectionBase. I am looking to display SOME of the data members in a datagrid and have a checkbox that is linked to a field of the collection. In ASP.NET you can set up the template. How does one do that for winforms? Any help would be appreciated. Thanks Dave DavidElliott@BellSouth.net Tag: Refresh MainMenu Tag: 52190
  - 9
    - Shell Function in .NET Hello, What's the equilevant of VB6 shell funtion in ( Shell(pathname[,windowstyle]) ) .NET framework. Thanks Tag: Refresh MainMenu Tag: 52188
  - 10
    - Screencapture without using SendKeys? I am looking for some sample code to do a screen capture (printscreen) without using SendKeys. Anyone? TIA, Nick Jacobsen njacobsen@pfastship.com Tag: Refresh MainMenu Tag: 52186
  - 11
    - Chart control with curve fitting? Can anyone recommend a WinForms (not ASP.NET) charting control which will fit a curve to XY data (Bezier, splines, etc)? -- Bert Hyman St. Paul, MN bert@visi.com Tag: Refresh MainMenu Tag: 52184
  - 12
    - Camera Sale -Nikon , Canon, Minolta , Sony ,Xcam2 , Fujifilm , Camera Sale -Nikon , Canon, Minolta , Sony ,Xcam2 , Fujifilm , http://shopforless.itgo.com/ Camera Sale -Nikon , Canon, Minolta , Sony ,Xcam2 , Fujifilm , from $50 -up for the top brands http://shopforless.itgo.com/ Tag: Refresh MainMenu Tag: 52182
  - 13
    - MDI Child Form size Hi All, Is there a way to make a MDI Child's height larger then the parent form? For example, when I try to add a new type of MDI Child to a Parent form that is setup for a width/height of 800 X 600, and I want to have a longer Child form (say the size will be 800X1200). Everytime I try this, Visual Stuido resets the height of the child to be near what the height of the Parent is. Thanks, T. Waldren Tag: Refresh MainMenu Tag: 52177
  - 14
    - Property Grid Stops Expanding Expandable Properties I am using the PropertyGrid control. I have altered the BrowsableAttributes property to a custom attribute. When I do this, expandable properties will no longer expand in the PropertyGrid. For example, I have a public font poperty. I can call up the font dialog from the PropertyGrid, but I can't expand the property to see the font members. If I don't change the BrowsableAttributes the PropertyGrid behaves normally. Any ideas? -- Howard Swope Software Engineer Spitz, Inc [http://www.spitzinc.com] Tag: Refresh MainMenu Tag: 52174
  - 15
    - Vanishing Custom User Control Bug Hi I am currently designing a Windows form which inherits from a basic custom dialog form. The new form uses custom user controls. When the form is compiled, the custom controls disappear and the message "There is already a component named 'myControl'. Components must have unique names, and names must be case-insensitive. A name also cannot conflict with the name of any component in an inherited class" appears for each disappeared control in the task window. This is very confusing because the form that is inherited does not contain any instances of myControl, only two windows buttons and an error provider. Has anyone a clue as to why this may be happening? Regards, Phil Tag: Refresh MainMenu Tag: 52169
  - 16
    - MDI Parent and Childs - Opening and Closing This is a multi-part message in MIME format. ------=_NextPart_000_0008_01C349EF.98765890 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable I have a child form that opens within the MDIParent. From this child = form (frmEntry), I open another child form(frmAircraftEntry). I do this = by Dim AircraftEntry As New frmAircraftEntry() AircraftEntry.MdiParent =3D Me.MdiParent AircraftEntry.Show() Me.Close() ' close frmEntry What I notice is that if I minimize the newly created form = AircraftEntry, there is still an instance of frmEntry running even = though I closed it. I am guessing it is from the call of =3D = Me.MdiParent. If I move the me.close to the top of the sub, it closes = the form as expected but then AircraftEntry does not open as a child. = What am I doing wrong, or is there another way to determine the MDI = parent? --=20 Brian P. Hammer ------=_NextPart_000_0008_01C349EF.98765890 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=3DContent-Type content=3D"text/html; = charset=3Diso-8859-1"> <META content=3D"MSHTML 6.00.2800.1170" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff> <DIV>I have a child form that opens within the MDIParent.  From = this child=20 form (frmEntry), I open another child form(frmAircraftEntry). I do this = by</DIV> <DIV><FONT color=3D#0000ff>Dim</FONT> AircraftEntry <FONT = color=3D#0000ff>As</FONT>=20 <FONT color=3D#0000ff>New</FONT> = frmAircraftEntry()<BR>AircraftEntry.MdiParent =3D=20 <FONT = color=3D#0000ff>Me</FONT>.MdiParent<BR>AircraftEntry.Show()<BR><FONT=20 color=3D#0000ff>Me</FONT>.Close() ' close frmEntry</DIV> <DIV> </DIV> <DIV>What I notice is that if I minimize the newly created form = AircraftEntry,=20 there is still an instance of frmEntry running even though I closed = it.  I=20 am guessing it is from the call of =3D Me.MdiParent.  If I move the = me.close=20 to the top of the sub, it closes the form as expected but then=20 AircraftEntry does not open as a child.  What am I doing = wrong, or is=20 there another way to determine the MDI parent?</DIV> <DIV><BR>-- <BR>Brian P. Hammer</DIV></BODY></HTML> ------=_NextPart_000_0008_01C349EF.98765890-- Tag: Refresh MainMenu Tag: 52154
  - 17
    - Repost: Problem Retrieving DataSet Returned By A WebService Hi, I'm working on a project which includes WebServices and Windows Form application. The Windows Form application will call the WebServices to retrieve data from database. The data will be returned as DataSet. Now, here's the problem. On .NET Framework 1.1, if any rows in the dataset returned contain errors (marked by calling the SetColumnError() method or setting the RowError property of the DataRow), I get the following error message in the Windows Form application, "There is an error in XML doument (1,xxxxxxx)" If I forced the Windows Form application to run on .NET Framework 1.0, everything works fine. Is this a bug? Or I need to make some code adjustment because of changes to the Framework? Here's the partial code for the WebService project Code: <WebMethod()> _ Public Function RetrieveDataSet() As DataSet Dim ds As New DataSet Dim dt As New DataTable Dim row As DataRow Dim i As Integer dt.TableName = "TestTable" dt.Columns.Add("TestColumn1", GetType(String)) dt.Columns.Add("TestColumn2", GetType(Integer)) ds.DataSetName = "TestDataSet" ds.Tables.Add(dt) For i = 0 To 10 row = dt.NewRow row("TestColumn1") = "This is row " & i row("TestColumn2") = i dt.Rows.Add(row) ' The following code trigger the error after the DataSet ' is returned to the calling Window Form application row.SetColumnError("TestColumn1", "Error message here") Next Return ds End Function For the Windows Form application, you need to insert a datagrid control (assumed as datagrid1). It will look something like this, Code: Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load Dim ws As localhost.Service1 Dim ds As DataSet Try ws = New localhost.Service1 ds = ws.RetrieveDataSet Me.DataGrid1.SetDataBinding(ds.Tables(0), "") Catch ex As Exception MsgBox(ex.Message) Finally If (Not (ws Is Nothing)) Then ws.Dispose() End If End Try End Sub I really hope someone could help me out with this one. Thanks in advance. Tag: Refresh MainMenu Tag: 52152
  - 18
    - Continued problem with Socket in User Control in IE Hey guys (and ladies), To get started, all of this is going to be run under Full Trust permissions, so I know that it isn't a security problem. I have a UserControl that contains a socket that connects to our server practically instantly when the UserControl is hosted in an executable residing locally on a client machine. If I attempt to host this control in Internet Explorer, the connection event takes almost exactly a minute to be fired, after which everything is happy and connected. Now this only occurs when one initially browses the page, as subsequent refreshes (F5s or the little button) connect immediately. To verify that this is a client side problem, I put 10-second-interval heartbeats in the socket stream from the server. Sure enough, on an initial browse and subsequent 60 second wait, the client side socket buffer contains the six heartbeats. Upon refreshing, the buffer contains only a single initial heartbeat. I've run the command line tool "netstat" to check the established sockets and see only a single socket connected and have also verified open and close events on the server. The funkiest part: both netstat on the client and the server (via an attached process) show immediate established connections, but it seems like something has delayed the first connection event to Internet Explorer. Finally, any web service calls that are made during this socket connection window are also hung up. If these calls are made during times when the socket is not attempting a connection, the calls go through in expected amounts of time. This is the case even if the call is made when the page is initially loaded for the first time. If anyone has the slightest hint, it would be highly appreciated. Thanks, Willis Tag: Refresh MainMenu Tag: 52147
  - 19
    - Creating a Pluggin I have written an application and am looking to extend its capabilities. I am looking to create pluggins and don't know where to start. I am also looking to store the pluggins in a subdirectory from the application root. I looked on MSDN and some of the other code sites but couldn't find and example. Does anyone have an example? Thanks, Dave DavidElliott@BellSouth.net Tag: Refresh MainMenu Tag: 52145
  - 20
    - Setup Program for .NET Apps. I was wondering if there was a better way to create a single setup project for a winform .NET App'. It's the .NET redistributable (dotnetfx.exe) that seems to be causing the problem. How can this be distibuted with out a sepertate setup program. I would have thought a merge module or something. But it seems I need to get my clients to install the dotnetfx.exe first then my app after. Any ideas. Tag: Refresh MainMenu Tag: 52144
  - 21
    - Farpoint Controls Does anyone have opinions on Farpoints .NET Spread and Input Pro controls for Winforms development? cheers Guy Tag: Refresh MainMenu Tag: 52140
  - 22
    - Exporting data from sqlserver to excel hie, i have 3 views in sql server and would like to export the data to excel after i run the query. how do i code this in my windows application? i haven't got a clue on how to do this.. thanx alot 4 all the help! *** Sent via Developersdex http://www.developersdex.com *** Don't just participate in USENET...get rewarded for it! Tag: Refresh MainMenu Tag: 52134
  - 23
    - PropertyList Control Can anyone recommend a good PropertyList control that I can easily add items to in VB.NET? The built-in one seems too complicated in that you have to create a class that you want it to represent, etc. and some of the existing controls I have found do not seem to work under .NET. Thanks; Michael Tag: Refresh MainMenu Tag: 52131
  - 24
    - protect my code from decompile hi. how to protect my vb.net application , from decompile ? all the tips , softwares, we be nice to read about. thanks and have a nice day. Tag: Refresh MainMenu Tag: 52121
  - 25
    - How to do dockable form in MDI? How do I create a dockable windows form within an MDI parent? The behavior is similar to the IDE interface, with mdi child windows in the center and property windows docked to the right. I want to create a property window that is either floating or docked to one side of the MDI parent. Tag: Refresh MainMenu Tag: 52120
- Next
  - 1
    - Controling C# Forms in Windows Application I'm a web applications developer and I'm being asked to write this windows application so I'm sure this is an easy answer but It's not jumping out at me. I have an application that uses several forms in a single windows application. I need to be have the user click a button and have it bring up a different form. These forms aren't generated on the fly they are hardcoded. For example the entry point of the application has a welcome menu with a login. If the user is a new user they need to fill out a account form. This form is located on a seperate windows form then the login / welcome menu. Thanks in Advance for all help and suggestions Braden Bowers Tag: Refresh MainMenu Tag: 52118
  - 2
    - Controling C# Forms in Windows Application I'm a web applications developer and I'm being asked to write this windows application so I'm sure this is an easy answer but It's not jumping out at me. I have an application that uses several forms in a single windows application. I need to be have the user click a button and have it bring up a different form. These forms aren't generated on the fly they are hardcoded. For example the entry point of the application has a welcome menu with a login. If the user is a new user they need to fill out a account form. This form is located on a seperate windows form then the login / welcome menu. Thanks in Advance for all help and suggestions Braden Bowers Tag: Refresh MainMenu Tag: 52117
  - 3
    - Strange Issue with MDI childs and Merged menus. Have a MDI parent with a menu and a MDI child with a menu that gets added to the parent - nothing fancy. One the parent, there is a menu (file/new) item that loads and shows a new child. Works fine so far. However, if you click (file/new) 2 or 3rd times, without actually clicking on the new child first, I will get: "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." However, if I click inside the ListView in the first child (I think because it changes the focus off the menu) then I can continue creating children without this error. You must *actually click the control as setting the focus in the code does not stop the problem. This does not happen if I remove the menu from the child or if I do not start the child as MDI. Therefore, I am guessing it is an issue with merged menus and/or mdi children. Anyone run into this before? Is there a way to simulate the mouse click in code (i.e. not just setting the focus). --wjs Tag: Refresh MainMenu Tag: 52115
  - 4
    - how to display multiple image on a windows form... hiye people... how can i display multiple image on a windows form? my image will be from a folder somewhere on the local machine. whats the best method to display multiple image? yours truly simon Tag: Refresh MainMenu Tag: 52109
  - 5
    - Intercepting events Hello all, I have a form with several controls(buttons) on it. I want to start a screen saver after nothing has been pressed for 10 min. And of course if something has been pressed, to restart the timer. To to this I have to trap each control's Click event and restart the timer from there. Is there a way to do this only once, somehow to hook before each control's Click event or something sismilar? Is there a way the form to intercept an event going one of its controls? Thank you Tag: Refresh MainMenu Tag: 52104
  - 6
    - Intercepting events Hello all, I have a form with several controls(buttons) on it. I want to start a screen saver after nothing has been pressed for 10 min. And of course if something has been pressed, to restart the timer. To to this I have to trap each control's Click event and restart the timer from there. Is there a way to do this only once, somehow to hook before each control's Click event or something sismilar? Is there a way the form to intercept an event going one of its controls? Thank you Tag: Refresh MainMenu Tag: 52103
  - 7
    - Windows Forms Inheritance, Incomplete? I was playing around with Windows Forms and found out this Forms Inheritance feature. The moment I saw that, I felt this can be used effectively if the application contains couople of forms which have a consistant look and also shares SOME similar functionality between the forms. Lets say for example, I have 2 forms and both forms have buttons as (New, Edit, Save, Close) Both the forms before showing, should do a security check(say in forms load event) In the old vb scenerio, we would create 2 similar forms seperately and do code cut and paste for each form which have the similar functions. But here, with forms inheritance this should be automaticaly done. But what happense when u inherit a form at the moment is, it only sets the controls MODIFIER poperty to say Protected, Proteted Internal etc.. But If I want to override the parent forms functionality , say overriding CLOSE buttons click method, I have to manually edit the parents click event as; protected virtual void btnClose_Click(object sender, System.EventArgs e) and then edit the close button event in the child form to; protected override void btnClose_Click(object sender, System.EventArgs e) And then, in the child forms' event registration for CLOSE button should be removed/commented(the line below). //this.btnClose.Click += new System.EventHandler(this.btnNew_Click); Otherwise, when the child instance get created it will register 2 events(cause it goes up the inheritance hierachy and creates parent form instance first and then come back to child form) so if u click CLOSE button once, it will call the close method twise!!!!! My question is why they didn't automate this couple of steps ? If a forms controls have been set to Protected / Protected Internal, they could have generate the code so that it will really work. I want to know what you guys think. May be I have taken the whole thing from the wrong end. May be forms inheritance is there ONLY to get the UI duplicated? is it? Regards KK Tag: Refresh MainMenu Tag: 52098
  - 8
    - Bug in datatable.select If you use a datatable select on a column that contains a GUID you will have a major problem if you are not using US language. We are using Danish language and when selecting like this: ds.Tables(0).Select(GuidColumn = 'SomeGUID') It will not always return the row as expected, I suspect the problem is that in Denmark the character "å" is the same as "aa" and one side of the equation returns "å" while the other returns "aa". This is a serious bug and should be fixed ASAP - I have reported this to MS 6 months ago, but to no avail. For anyone interested I can send a project that demonstrates this behaviour. Regards Thorben Jensen Tag: Refresh MainMenu Tag: 52093
  - 9
    - What is the best method to display multiple data hiye good people of devCity, I'm new to the .net world. i've recently been assign a task to display multiple data ON A WINDOWS FORM. if this task were to be completed in asp.net i would use datagrid and all its wonderful feature to customize the output of it. but sadly, i'm not... anyway, since my app would be in a windows form, do i still need to use datagrid to display multiple rows of data or is there a better tool out there and i'm not aware of it? and if i were to stuck with datagrid, can someone show me some sites on the net on how to customize the datagrid the way asp.net does? your help is greatly appriciated... yours truly Simon Tag: Refresh MainMenu Tag: 52092
  - 10
    - Quote extraction from Yahoo Historical Quotes I have the following method that retrieves quotes from the Yahoo historical quotes web page. According to their FAQ, there is no limitation on the number of quotes one may download, and because the problem seems to come and go, I'm concerned it may be a problem with my code. In particular, the problem seems to occur when I retrieve quotes over a long period of time. Normally the routine runs every night and downloads the previous days quotes. Occasionally, however, I'll download one or more years worth of quotes for several stocks. It's on these occasions when the code seems to fail. It doesn't fail the first time, though, and it won't necessarily fail on the stock that I'm retrieving multiple quotes from. The exception that is thrown is: "System.Net.WebException: The underlying connection was closed: The server committed an HTTP protocol violation." The exception is thrown at wrq.GetResponse(). I originally thought it was because I was going through a machine using Internet Connection Sharing, but then I did it directly to the internet without a proxy, and the same problem occurred. Anyone have any ideas? Code follows: public QuoteList GetQuoteHistory(Stock StockOb, DateTime StartDate, DateTime EndDate) { if (StartDate.Year < 1970) { StartDate = new DateTime(1997, 1, 1); } bool done = false; int tryCount = 0; QuoteList list = new QuoteList(); while (!done) { // Build url query string string url = @"http://" + yahooIP + @"/table.csv?a=" + ((int)(StartDate.Month - 1)).ToString() + @"&b=" + StartDate.Day.ToString() + @"&c=" + StartDate.Year.ToString() + @"&d=" + ((int)(EndDate.Month - 1)).ToString() + @"&e=" + EndDate.Day.ToString() + @"&f=" + EndDate.Year.ToString() + @"&s=" + StockOb.Ticker + @"&y=0&g=d&ignore=.csv"; WebRequest wrq = null; Stream strm = null; StreamReader sr = null; try { wrq = WebRequest.Create(url); wrq.Timeout = 30000; wrq.Proxy = WebProxy.GetDefaultProxy(); strm = wrq.GetResponse().GetResponseStream(); sr = new StreamReader(strm); } catch(System.Exception ex) { if (null != sr) { sr.Close(); } if (null != strm) { strm.Close(); } // Check to see if the operation timed out. If it did, // retry a couple of times. if ("The operation has timed-out." == ex.Message) { tryCount++; if (tryCount > 2) { return null; } continue; } else { return null; } } string line; try { // If there's no day, close out. if (null == (line = sr.ReadLine())) { return null; } while (null != (line = sr.ReadLine())) { // Parse quote data nad add the quote if it's not already in the // list of quotes char[] splitCh = new Char[1]; splitCh[0] = ','; string[] items = line.Split(splitCh); Quote quote = new Quote(); quote.QuoteDate = Convert.ToDateTime(items[0]); quote.OpenPrice = (float)Convert.ToDouble(items[1]); quote.HighPrice = (float)Convert.ToDouble(items[2]); quote.LowPrice = (float)Convert.ToDouble(items[3]); quote.ClosePrice = (float)Convert.ToDouble(items[4]); quote.Volume = Convert.ToInt32(items[5]); if (false == list.ContainsKey(quote.QuoteDate)) { list.Add(quote.QuoteDate, quote); } } } catch(System.Exception ex) { Trace.WriteLine("Unknown exception processing request: " + ex.ToString()); } finally { // Close everything nice and clean sr.Close(); strm.Close(); done = true; } } return list; } Tag: Refresh MainMenu Tag: 52090
  - 11
    - TreeView with adjustable TreeNode height Hi, Does anyone know a third party TreeView control with the possibility to adjust (programmatically) independently the heights of the TreeNodes? i.e. sort of multiline TreeNode. (Or would it be feasible to construct such one by yourself inheriting from the .NET TreeNode class?) Ron Tag: Refresh MainMenu Tag: 52089
  - 12
    - mdi scrollbars - now tearing my hair out! Hi all! Original question:- Is it possible to disable the scrollbars that appear on an MDI parent form, so when the child forms are dragged outside the forms client area the scroll bars do not show! ---------------- Still can't seem to find any info on how this is done! Searched everywhere on the net tried EnableScrollBar and ShowScrollBar, so please can anyone help with this almost impossible problem! Thanks in advance, Carl Prentice. Tag: Refresh MainMenu Tag: 52088
  - 13
    - About the samples in MSDN TV Data Validation in Smart Client Applications I'm a regulary watcher of MSDN TV. I recently watched the episode Data Validation in Smart Client Applications. I'm very interested in one of samples - the validation sample. I'm very surprised that when a validation component is added onto the form, it dinaymically adds new properties to a TextBox control! I went to the site mentioned in the show, but the samples are not there (I got the ever existing 404 error). Can someone tell me that is the key technique to dynamically add properties to a control on a form? Tag: Refresh MainMenu Tag: 52085
  - 14
    - problem with form1.show If I use the command form1.showdialog() the form appears and stays on the screen. However, if I use form1.show() it appears then immediately closes. I've spent two hours pulling my hair out on this one, thumbing through 3 vb.net books. For now I'm using showdialog, but I need the 'real thing'. Thanks in advance. dennist Tag: Refresh MainMenu Tag: 52080
  - 15
    - Icon's size problem Hi! I've copied some ico file; on this copy I've worked under VS to graphicaly modiffy icon; the result is that I can only change picture of the max-res icon. Problem - how to convert this "big" to other sizes? Is there any soft under VS (or other) that can make this conversion? Thx in advance KW. Tag: Refresh MainMenu Tag: 52075
  - 16
    - Thanks all - Suggestions for Disable Ctl+Alt+Del C# Dear Friends Thanks for all your suggestions. Brain Thank you for your source code and valuable suggestions.I am working on it... Thanks, Dev Tag: Refresh MainMenu Tag: 52058
  - 17
    - How many threads Hi, If I have a code like this: class Foo { public Form1 frm1; public Form2 frm2; public static void Main() { frm1=new Form1();frm2=new Form2() Application.Run(frm1); } } How many threads will I have in my process (excluding the CLR's ones)? Does creation of a form create a thread, too? I think it does because where else the forms' message loops will reside, but I am not sure Thank you Tag: Refresh MainMenu Tag: 52057
  - 18
    - Strange TextBox behavior when 2 or more text boxes are placed next to each other. We have several forms that use textBoxes to collect info from the user. It seems that when we have 2 text boxes stacked one below the other, when the user types in the second one the text is actually entered into the first one. We thought that maybe upgrading to .NET 1.1 might solve this issue, but it is still there. Tag: Refresh MainMenu Tag: 52040
  - 19
    - form with datagrid steals focus Hi. I'm having a very annoying focus problem. I have a class (MyDataList) which implements CollectionBase and IBindingList. This class is bound to a data grid. whenever my MyDataList is updated [example: OnListChanged(new ListChangedEventArgs(ListChangedType.Reset,-1));] (another thread invokes updates on the UI thread) the form containing the DataGrid takes focus and then acts like something set TopMost = true on the containing form! I can't figure out what is causing this, and it's driving me insane!! Has anyone encountered this before, and found a fix? Or does anyone have a suggestion? (extend DataGrid and override some protected event?) Tag: Refresh MainMenu Tag: 52038
  - 20
    - Dropdown Grid Have anyone seen or implemented a control that drops a grid out of dropdown list box? Tag: Refresh MainMenu Tag: 52024
  - 21
    - Visual Inheritance for ComboBox Hi All, Just been toying around with inheriting from the ComboBox control. See below a simple example of the new ComboBox class. // start MyComboBox.cs file using System; using System.Windows; using System.Windows.Forms; using System.Drawing; namespace MyComboBox.UI { /// <summary> /// Summary description for MyComboBox. /// </summary> public class MyComboBox : ComboBox { public MyComboBox() { this.ForeColor = Color.DarkBlue; } protected override void OnHandleCreated(EventArgs e) { if (this.DesignMode) { this.Items.Add("Design Mode"); } else { this.Items.Add("Run-time Mode"); } this.Items.Add("Orange"); this.Items.Add("Apple"); this.Items.Add("Pie"); } } } // end There's no problem adding the control to my toolbox. Also - no problem dragging and dropping the custom combo onto the design canvas. Strange thing is, after switching between design time and code a couple of times and running it - the font seems to change into a bigger font, something like Arial bold or such. Also, I suppose I need to specify some attribute tags before the class definition. Any ideas or suggestions? Thanks a bunch, Wim Hollebrandse Tag: Refresh MainMenu Tag: 52023
  - 22
    - Menu shortcut keys do not work when Form.Show is called. I have a form that I build in C# that does not seem to annunciate a menu item selection when a shortcut key is pressed. It only seems to occur if I display the form using the Form.Show() method. The problem does not seem to occur when I use Form.ShowDialog(). Can someone explain how I can get around this problem? -- ----------------------------------- Ken Varn Senior Software Engineer Diebold Inc. varnk@diebold.com ----------------------------------- Tag: Refresh MainMenu Tag: 52012
  - 23
    - MDIChild forms maximizebox. Hello ALL, I have this situation: 1. A MDI Form named frmPrincipal; 2. A MDIChild form named frmCustomers; When I show the frmCustomers form, from a click event of a button of frmPrincipal, like this: frmCustomers.MdiParent = this; frmCustomers.WindowState = FormWindowState.Maximized; frmCustomers.Show() The frmCustomers form shows ok, but the minimizebox, maximizebox and controlbox appears, and I can´t like this. In the frmCustomers properties I set false to maximizebox, controlbox and minimizebox, but they appears yet. I try to remove the border of the form (set FormBorderStyle = None) but don´t work too. Please, how can I hide this buttons? Thanks in advance and sorry my English. Fernando Lopes Marília - São Paulo - Brazil. Tag: Refresh MainMenu Tag: 52009
  - 24
    - Problem with drawing over the top of a background form Hi, I am hoping someone can point me in the right direction. I am working on a program that has a form that has a background mage that the user can change. Currently I assign in directly to background image. After an image is assigned to the background the user has the ability to draw rectangles on the image using the mouse to define the regions. To do that I create a bitmap and constantly redraw the rectangles on it that are stored in a linked list each time the form repaints.. the problem is that because of this bitmap, I never see the image assigned to the background. Of course this makes sense since I am creating a bitmap. I've tried setting the bitmap to be transparent, and that allows me see the background image, but everytime I use the mouse to draw or resize a region, it doesn't refresh properly and I'm left with tons of rectangles on the screen, instead of just the final rectangles position. Is there any easier way to do this? I've also tried to assigned the .BMP image I use directly as the bitmap I am creating the rectangles on rather then the background, but then I get another error saying "Additional information: A Graphics object cannot be created from an image that has an indexed pixel format." The bmp is an 8 Bit format image. I've also tried converting it to a GIf with no success. I was going to post some of the code, but figured the post was long enough, if anyone is interetsed in seeing what i have so far, just let me know. I appreciate any help you guys can give me. Tag: Refresh MainMenu Tag: 52006
  - 25
    - Simple way to force a form to validate Is there a simple way to force a form to invoke validation on all its controls.. I want to do this on a button_click prior to doing some processing.. Thanks Tag: Refresh MainMenu Tag: 52005

Hi,

In my (MDI) App, I have created a MainMenu with several
Visible = False Items. These are supposed to be made
visible dependant on which MdiChild is Active. However, I
can only get the MainMenu to Refresh/Update itself during
the Popup event of one of the other items.

1. Why doesn't setting Visible = True work at the time it
is called ?
2. How should I get round this ? - The new menu should be
active as soon as the new form is shown -and not when I
try and access the (missing) menu.

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