Swapping controls in windows forms

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  - 1
    - vpn credentials we have a c# windows application that grabs a users netowork credentails. we now need to allow users to run the application over VPN (on non domain machines) we have given the users domain accounts for the VPN. I need to grab the VPN credentials rather than the machines credentials. Thoughts? thanks, Kevin Tag: Swapping controls in windows forms Tag: 79996
  - 2
    - Newbie datagrid help I am using the following code to update my datagrid in a win form that is the front end to an Access DB. Me.BindingContext(School11, "Student").AddNew() OleDbDataAdapter1.Update(School11) My question is how do I have the datagrid select the new record after it updates? Tag: Swapping controls in windows forms Tag: 79991
  - 3
    - Forms designer load error. I added my own property (a double) to a derived component which can be edited in the property browser and is serializable. When I enter a small number such as .00001, the code generated in InitializeComponent() looks like this: this.StartTime.Increment = 1E-05; This compiles and runs fine, but the forms designer barfs and won't open the form. If I change the initialization to this: this.StartTime.Increment = 1.0E-05; then the form is happy. The form designer doesn't seem to understand and exponent without a decimal point. Any ideas? Here's what I'm using to get/set the value. protected double increment = 1.0E-6;; ... [Category("Misc"), Description("Gets or sets the numeric control increment value."), DefaultValueAttribute(1.0E-6), DesignerSerializationVisibility(DesignerSerializationVisibility.Visible), TypeConverterAttribute(typeof(DoubleConverter))] override public object Increment { get { return increment; } set { increment = Convert.ToDouble(value); } } Tag: Swapping controls in windows forms Tag: 79989
  - 4
    - user authentication i have a menu program, that does the user login, then lets the user to click on a link and executes other programs. how can i pass the user information from the menu program to the newly created process? i really want to make the menu a stand alone program. thankx a lot. Tag: Swapping controls in windows forms Tag: 79987
  - 5
    - Help - XP Taskbar Grouping Causes Blank App Name Hi When My Application goes to the number of windows in xp that the user sets for tasbar grouping, the Identifacation in the taskbar goes blank (no name and no icon). I'm sure i've given the solution a project name and everything that it should be, am i missing something. Thanks. Tag: Swapping controls in windows forms Tag: 79984
  - 6
    - Having derived forms recognizing the docking property of objects in the base form I have a base form where I docked a panel control across the header to act as a custom menu/tool bar. If I were to dock another control in the base form to the left side, it would recognize the first panel docked on the header, and therefore the 2nd panel would stretch from the bottom of the form to bottom of the 1st panel (1st panel being the one docked to the top which stretches from the left to the right side of the form). Ok that all works as expected. now I remove the 2nd panel from the base form as it was just a test to see that the docking was working correctly. Now I build the project and go to a form that's derived from this base form and I dock a control to the left side of the form. Instead of this left-docked control stretching from the bottom of the header panel (which is part of the base form and docked on top) to the bottom of the form, it stretches all the way to the top of the form and overlays my custom header (which is part of the base form). Is there anyway to change this behavior for a control docking in a derived form and recognizing the docking of a control in the base form? Thanks. -- moondaddy@nospam.com Tag: Swapping controls in windows forms Tag: 79983
  - 7
    - Datagrid Border disappears The inital datagrid looks fine, but when I fill it the border turns white. Not sure what property is controlling the border color. Tag: Swapping controls in windows forms Tag: 79982
  - 8
    - How to change the backcolor of a MDI form I'm writing an app in vb.net 1.1 and need to change the backcolor of an MDI form. I saw in another posting in this user group which referred to a link <URL:http://vbaccelerator.com/article.asp?id=4306> which had a good example, however, it was in C# and I wasn't able to get through it. Can anyone refer a good vb example? Thanks. -- moondaddy@nospam.com Tag: Swapping controls in windows forms Tag: 79981
  - 9
    - VB.NET Application on File Share Cannot Be Updated I have a VB.NET application that I have deployed via UNC file share. Everything works fine after the users run the small MSI that sets the appropriate trust level for the URL. The problem I am running into, however, is that I cannot push updates out to the server. When I attempt to copy a newer version of an assembly, I get a File Sharing Violation error. What gives? I thought (and verified) that the EXE is downloaded and run in a local process on the user's machine? When I look in task manager on my machine, the application shows up (it does not on the server with the file share). I used ProcessExplorer on the server, and it seems that there are 3 references and 1 handle to each of the assemblies that comprise the application. Doesn't matter how many users are currently running the application. It always shows 3 references and 1 handle. Again, this makes no sense to me and my understanding of how NTD is supposed to work. Maybe my understanding is wrong? I have read everything I could find on deploying applications via file share, and I have not seen anything about problems copying updated assemblies out to the share. Any insight that anyone might have is greatly appreciated. I have some critical updates that I need to get moved out as soon as possible. Thanks, Ken Tag: Swapping controls in windows forms Tag: 79979
  - 10
    - numeric up down control - whidbey if I manually delete the value in the text box in a numeric up down control, the Value property does not change, and following this, programmatic changes to the Value property do not get reflected in the UI although the property does actually get set. Has anyone else experienced this problem? Can anyone give me any ideas as to how I can get around this. Or is it just a bug with Whidbey? Thanks Jag Tag: Swapping controls in windows forms Tag: 79977
  - 11
    - How to yield the primary thread to some other task? Hi, I'm trying to create a method on my windows form that starts a multi-threaded task, waits for it to finish, and then returns. To be more precise: the form has a LoadUrl() method. This method calls the Navigate() method on the form's embedded WebBrowser control, and then does a WaitOne() on a ManualResetEvent. This ManualResetEvent will be Set() from WebBrowser's DocumentComplete handler when loading is done. So, what happens is this: when Navigate() is called, the web browser starts the download in a secondary thread and returns, thus jumping to my WaitOne() call where I wait for it to finish. While downloading, the browser wants to update the UI, which has to be done from the primary thread. But no dice, the WaitOne() call is blocking it. Now, I must do some kind of Wait() on the primary thread because I want to return from the method only when the operation is complete. But, I somehow have to wait without blocking this thread. Is this possible? It seems that the windows form has a solution to this. How does the form manage this primary thread so it knows how to do BeginInvoke, for example? Do I need to use the message loop or something? Any hint is welcome. Thanks in advance! -- Boris Drajer <boris.drajer@do.not.s.p.a.m.micro-bs.com> Tag: Swapping controls in windows forms Tag: 79976
  - 12
    - DataGrids, Datasets and ListBoxes Hello, I have a windows.forms application in VB.NET which has a DataGrid. I started simple and so programmed the Grid to appear by Default when the application opened and show a default dataSet. Now that I have done this I want to extend the program's capabilities. Instead of one dataSet I have 6 ( dataSetxxx, dataSetyyy, etc) and a listbox with 6 items in( xxx, yyy, etc) I populated the Listbox by... me.listbox.items.add("xxx") and so on When the application opens I want to show a picture but when the user selects one of the options from the ListBox, the corresponding dataSet is shown in the DataGrid form. All the dataSets are in XML format. I'm pretty new to VB.NET and have tried all sorts of different ways of doing this without any success. Can anyone help? Can someone tell me how to make the cells in the dataSet readonly? Thanks in advance, James Tag: Swapping controls in windows forms Tag: 79973
  - 13
    - Vertical text in datagrid cell trying to display vertical text in a .Net winform datagrid cell.... anybody can help me ?? : User submitted from AEWNET (http://www.aewnet.com/) Tag: Swapping controls in windows forms Tag: 79972
  - 14
    - MDI Application Help I have an MDI VB.NET application. When I select forms from the mdi menu each child form opens further down and to the right on the screen than the previous one. It gets to the point where the forms look unprofessional and untidy and half of the information is off of the screen. How can I influence specifically where the child gets postioned when being opened from the menu? I don't just want to maximise the forms when opening. -- Thanks Bill Partridge Tag: Swapping controls in windows forms Tag: 79971
  - 15
    - Reading & Writing Pictures to sqlserver using vb .net I do not know that how to store a picture and then retrieve it from database i.e. sqlserver 2000, in vb .net. in vb 6.0 field.getchunk was used to read the picture what in vb .net thanks for ur help --- Posted using Wimdows.net NntpNews Component - Post Made from http://www.DotNetJunkies.com/newsgroups Our newsgroup engine supports Post Alerts, Ratings, and Searching. Tag: Swapping controls in windows forms Tag: 79966
  - 16
    - New Forum Needs a Lift! We Need Programmers! This is a multi-part message in MIME format. ------=_NextPart_000_021A_01C4C2B2.1171BB90 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Hi everyone, www.webdesignmagic.com.au/forum.asp <BLOCKED::BLOCKED::BLOCKED::BLOCKED::http://www.webdesignmagic.com.au/fo rum.asp> I am trying to get a new Programming and Website Design forum in Australia up and running. I am looking for new members who may be able to help others in programming related issues and web site design issues. Please visit <BLOCKED::BLOCKED::BLOCKED::BLOCKED::http://www.webdesignmagic.com.au/fo rum.asp> www.webdesignmagic.com.au/forum.asp and introduce yourself or maybe see if someone needs help! I am not using this for marketing purposes, simply wish to repay the favours others have done for me when I needed help. Thanks Daren Hawes MCAD.NET, MCSD.NET --------- Web Design Magic Home of the "The Help Desk" Programming Forum. http://www.webdesignmagic.com.au/TheHelpDesk ------=_NextPart_000_021A_01C4C2B2.1171BB90 Content-Type: text/html; charset="us-ascii" 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=3Dus-ascii"> <META content=3D"MSHTML 6.00.2900.2523" name=3DGENERATOR></HEAD> <BODY> <DIV><FONT face=3DArial size=3D2> <DIV> <DIV dir=3Dltr align=3Dleft><FONT face=3DArial size=3D2><SPAN=20 class=3D241442204-04112004>Hi everyone,</SPAN></FONT></DIV> <DIV> <DIV> <DIV><FONT face=3DArial size=3D2><SPAN=20 class=3D241442204-04112004></SPAN></FONT> </DIV> <DIV><FONT face=3DArial size=3D2><SPAN class=3D241442204-04112004><A=20 href=3D"BLOCKED::BLOCKED::BLOCKED::BLOCKED::http://www.webdesignmagic.com= .au/forum.asp">www.webdesignmagic.com.au/forum.asp</A></SPAN></FONT></DIV= > <DIV><FONT face=3DArial size=3D2><SPAN=20 class=3D241442204-04112004></SPAN></FONT> </DIV> <DIV><FONT face=3DArial size=3D2><SPAN class=3D241442204-04112004>I am = trying to get a=20 new Programming and Website Design forum in Australia up and=20 running.</SPAN></FONT></DIV> <DIV><FONT face=3DArial size=3D2><SPAN=20 class=3D241442204-04112004></SPAN></FONT> </DIV> <DIV><FONT face=3DArial size=3D2><SPAN class=3D241442204-04112004>I am = looking for new=20 members who may be able to help others in programming related issues and = web=20 site design issues.</SPAN></FONT></DIV> <DIV><FONT face=3DArial size=3D2><SPAN=20 class=3D241442204-04112004></SPAN></FONT> </DIV> <DIV><SPAN class=3D241442204-04112004><FONT face=3DArial size=3D2>Please = visit=20 </FONT><A=20 href=3D"BLOCKED::BLOCKED::BLOCKED::BLOCKED::http://www.webdesignmagic.com= .au/forum.asp"><FONT=20 face=3DArial = size=3D2>www.webdesignmagic.com.au/forum.asp</FONT></A><FONT = face=3DArial=20 size=3D2> and introduce yourself or maybe see if someone needs=20 help!</FONT></SPAN></DIV> <DIV><FONT face=3DArial size=3D2><SPAN=20 class=3D241442204-04112004></SPAN></FONT> </DIV> <DIV><FONT face=3DArial size=3D2><SPAN class=3D241442204-04112004>I am = not using this=20 for marketing purposes, simply wish to repay the favours others have = done for me=20 when I needed help.</SPAN></FONT></DIV> <DIV><FONT face=3DArial size=3D2><SPAN=20 class=3D241442204-04112004></SPAN></FONT> </DIV> <DIV><FONT face=3DArial size=3D2><SPAN class=3D241442204-04112004>Thanks = Daren=20 Hawes</SPAN></FONT></DIV> <DIV><FONT face=3DArial size=3D2><SPAN = class=3D241442204-04112004>MCAD.NET,=20  MCSD.NET</SPAN></FONT></DIV></DIV></DIV></DIV></FONT></DIV> <DIV align=3Dleft><FONT face=3DArial size=3D2>---------</FONT></DIV> <DIV align=3Dleft><FONT face=3DArial size=3D2>Web Design Magic<BR>Home = of the "The=20 Help Desk" Programming Forum.<BR><A=20 href=3D"http://www.webdesignmagic.com.au/TheHelpDesk">http://www.webdesig= nmagic.com.au/TheHelpDesk</A></FONT></DIV> <DIV align=3Dleft><FONT face=3DArial size=3D2></FONT> </DIV> <DIV> </DIV></BODY></HTML> ------=_NextPart_000_021A_01C4C2B2.1171BB90-- Tag: Swapping controls in windows forms Tag: 79962
  - 17
    - AcceptButton closes Form on Failure Hi! I have an AcceptButton on my Form. With pressing this Button some checks are performed and only when they are all okay, then the Form should close. Can I set this up in some way? E.g. abort the Closing-Process of the Form... Thank U very much, Christian Tag: Swapping controls in windows forms Tag: 79955
  - 18
    - How to remove all rows in datagrid? This is a multi-part message in MIME format. ------=_NextPart_000_000A_01C4C289.CB075520 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi, Do you know how to remove all rows in datagrid? datagrid.TableStyles.Clear() seem does not work to me. Thanks, Dennis ------=_NextPart_000_000A_01C4C289.CB075520 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 6.00.2900.2180" name=3DGENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=3D#ffffff> <DIV><FONT size=3D2><FONT size=3D2> <P>Hi,</P> <P>Do you know h<FONT size=3D1>ow to remove all rows in datagrid?</P> <P></FONT>datagrid.TableStyles.Clear() seem does not work to me.</P> <P>Thanks,</P> <P>Dennis</P></FONT></FONT></DIV></BODY></HTML> ------=_NextPart_000_000A_01C4C289.CB075520-- Tag: Swapping controls in windows forms Tag: 79951
  - 19
    - Emailing from a Visual Studio.NET Application (Basic) I'm sending eMail messages from my Visual Basic.NET application. Creating a System.Web.Mail.MailMessage and sending it with SmtpMail.Send works fine, but I'd like to take it a step further and hook up with the correct Mail Server automatically, or, even better, deliver the message into the clientÂ´s actual eMail application so he can use his address book to select the recipient, etc. Can anyone point me in the right direction? At least as far as telling me how to get the name of the Mail Server, if any, that the user is hooked up with. As far as plugging into the Mail-client the user is using, perhaps that's a lot of bother since the different clients ,Outlook, Outlook Express, and (I shudder to mention it) Non-Microsoft mail clients may not accept the same type of Message-object. Still, I'd be grateful for any input. -- Gudmundur Karlsson Iceland Tag: Swapping controls in windows forms Tag: 79938
  - 20
    - Transparent Label I have a form that has a picture box with an image. I will also me placing labels on this form in front of the picture box. I want the picture to show through the labels. I would like the labels to be transparent. I have tried setting the background color of the label to transparent, but all it shows is the background color and you can not see the image behind it. Is there any way to do this? Thanks, -- Eric Renken Demiurge Software LLC http://www.demiurge.us Tag: Swapping controls in windows forms Tag: 79937
  - 21
    - problem printing on a roll paper OK After two month of development.. my App is ready.It is a client lotery system and it is going to be deployed in many places around the city.The App is going to use Tickets printers (I dont know the exact name) the problem is that there are a lot kind of printers, when I made the printing test with an EPSON TM-U200PD I notice that if I print a very long ticket, the printer stop at an specific page size... I want to print a Roll of information continue NO matter what I did configuring the page size it did not print continue I dont want to think the worst : I have to program an interface.. because there are so many types of printers where can I start to looking for the problem? Tag: Swapping controls in windows forms Tag: 79936
  - 22
    - MDI Form Click Event Detection Hi, I use Vb.Net with the Framework 1.1. I am coding a MDI form. I want to show a context menu when the user right-clicks in the gray area of the mdi form. The event MdiForm_Click doesn't fire. Why? Is there a workaround? Thanks, C. Tag: Swapping controls in windows forms Tag: 79933
  - 23
    - New Problem with Always on Top Thank you for you help with the Always on Top issue previously posted. It worked great. But, I have noticed that when I call a different form using "ShowDialog" that the clipboard is still on top but I cannot access it. Is there a way to make MyClipboard not effected by the other forms that are displayed using "ShowDialog". I am looking to copy information from Frm2.ShowDialog into MyClipboard and paste it into Frm3.ShowDialog from MyClipboard... Thanks. Chuck Tag: Swapping controls in windows forms Tag: 79930
  - 24
    - textbox maxlength Hi, I looked everywhere for a reference to this, and I'm surprised that no one else (apparently) has run into this problem. I am using a textBox to collect/display messages as they are created in my system. I append them to the current Text contents using the AppendText() method. I never had problems with this until I moved to studio 2003 with SP2. Now, no matter what I set my maxlength to (0, 500K, etc ...), the AppendText() stops working once the buffer size reaches 32k. I'm sure it has something to do with the SP2 patches related to overflowing buffers, but I have no idea how to fix this (I definitely want to be able to put more than 32k into the textbox) Any ideas ? thanks, mark Tag: Swapping controls in windows forms Tag: 79929
  - 25
    - Always on Top Hello, I am creating a clipboard that is always on top of my application. How can I make my form (MyClipboard) always on top?? Thanks, Chuck Tag: Swapping controls in windows forms Tag: 79923
- Next
  - 1
    - Winforms FAQ Datagrid Combo? I have used this example to embed a bound combo within a datagrid. It works very well, but with one exception. If the user selects a value from the list, the selected value is not actually shown until the control loses the focus. It always displays the previous, or first entry in the list. Once the control loses the focus, the correct value is displayed, but it is a little confusing. Any suggestions as to how I can get the display to update correctly? The code can be found on the winforms site. Cheers, James Tag: Swapping controls in windows forms Tag: 79915
  - 2
    - Control(s) on top of C# form's MainMenu How do I locate controls on top of the MainMenu for a C# form, in the same way as PowerPoint does? (It has a Close button and a Restore button on the very right side) Thanks, Valerie Hough Tag: Swapping controls in windows forms Tag: 79911
  - 3
    - IESourcing Problem w/ Threads Hi, I have a Windows Form that I embed in a HTML file. The Form has a TextBox and a Button. For simplicity sake, I am testing using a timer program, that should display the elasped time on the TextBox. I have a secondary thread that runs an infinite loop and every second updates the TextBox (using MethodInvoker). And also pops up a messageBox (I added this later to see if the thread runs). The Button is used to manually update the TextBox, from the main thread. I tried this on my local computer, running the HTML file in IE, and it worked perfectly. The TextBox updates automatically, the MessageBoxes pop up. Now, I tried the same thing from a computer on the network, it loads the form fine, but doesn't update TextBox automatically, and no MessageBoxes come up either on the client or the server. I don't know if the thread even started at all. However, the Button still works, if i click it, the textbox gets updated. Any ideas on what I'm doing wrong? Tag: Swapping controls in windows forms Tag: 79909
  - 4
    - Order of Events on Form Creation This seems a really basic question but I can't find an answer in the help file, perhaps I'm looking for the wrong thing? I want to load the previous settings for my app which will indicate window size and position. I can't do it in the load event because the form doesn't actually exist (or is not visible) at that point. I put it in the form activate event with a flag so the settings are only applied once but this seems a bit clumsy. Is there an 'on first activated' or 'on first show' event that I could us. I am currently trying 'OnCreateControl' but I am not sure that makes sense. Many thanks. -- Jeff Gaines Damerham Hampshire UK Tag: Swapping controls in windows forms Tag: 79908
  - 5
    - AxWebBrowser and WM_PRINT unexpected failures I'm trying to capture thumbnails of pages visited in a VB.Net app, in circumstances where the window containing the AxWebBrowser is often not on top. For this reason, I'm using SendMessage of WM_PRINT to the browser control's hWnd. (Also tried sending to a panel containing the browser control, with no improvemtn) The code itself essentially seems to work fine, because it captures the thumbnail of the first page that the control visits. But if the window containing the browser is then navigated BY THE USER CLICKING A LINK, rather than by doing a new Navigate2, subsequent calls to the routine just return a blank white bitmap with no content. Starting again with a new location reached by Navigate2 goes back to getting a valid bitmap. Clicking a link on the page breaks it again. Sadly, cancelling all navigation events and inserting coded Navigate2 to the same destination does not work either as a workaround - it results in a very intermittent solution. Any ideas? The actual code used is the following (huge swathes of error checks omitted) Private Sub PrintWindowToDC(ByVal hWnd As IntPtr, ByVal hdcDest As IntPtr, ByVal Width As Integer, ByVal Height As Integer) Dim hDC As IntPtr = GetDC(hWnd) Dim hDCMem As IntPtr = CreateCompatibleDC(hDC) Dim hBmp As IntPtr = CreateCompatibleBitmap(hDC, Width, Height) Dim hOld As IntPtr = SelectObject(hDCMem, hBmp) SendMessage(hWnd, WM_PRINT, hDCMem, PRF_CLIENT Or PRF_CHILDREN) BitBlt(hdcDest, 0, 0, Width, Height, hDCMem, 0, 0, SRCCOPY) SelectObject(hDCMem, hOld) DeleteObject(hDCMem) DeleteObject(hBmp) ReleaseDC(hWnd, hDC) End Function Public Function GetControlAsBitmap(ByVal ctl As System.Windows.Forms.Control) As Bitmap Try Dim g1 As Graphics = ctl.CreateGraphics() Dim tempImage As Bitmap = New Bitmap(ctl.ClientRectangle.Width, ctl.ClientRectangle.Height, g1) Dim g2 As Graphics = Graphics.FromImage(tempImage) Dim dc2 As IntPtr = g2.GetHdc() Dim rv As Int32 = PrintWindowToDC(ctl.Handle, dc2, ctl.Width, ctl.Height) g2.ReleaseHdc(dc2) Return tempImage Catch e As Exception MsgBox("Failure during getcontrolasbitmap", MsgBoxStyle.OKOnly, "Error") End Try End Function Private Function DoAbort() As Boolean MsgBox("I got an abort") Return False End Function Private callback As New Image.GetThumbnailImageAbort(AddressOf DoAbort) Public Function GetControlAsThumbnail(ByVal src As Control, ByVal Width As Integer, ByVal Height As Integer) As Bitmap Dim bmp As Bitmap = GetControlAsBitmap(src) Dim thumb As Bitmap = bmp.GetThumbnailImage(Width, Height, callback, IntPtr.Zero) bmp.Dispose() Return thumb End Function Tag: Swapping controls in windows forms Tag: 79906
  - 6
    - ListView Hot Tracking - missing functionality Tribe, Looking to see if anyone has coded up hot tracking for listbox or listview controls. Essentially it you do this: ListViewItem hotListViewItem; private void listView1_MouseMove(object sender, MouseEventArgs e) { ListView lv = (ListView)sender; ListViewItem item = lv.GetItemAt(e.X, e.Y); if (item != null) { item.BackColor = Color.Wheat; if (hotListViewItem != null && !hotListViewItem.Equals(item)) hotListViewItem.BackColor = Color.White; hotListViewItem = item; } } You can make the rows track hot BUT there is an awful lot of flicker when you do this. Anyone done this kind of thing and found an alternative method? Regards, Dave Cline ~bangeye.com~ Tag: Swapping controls in windows forms Tag: 79904
  - 7
    - How to have MainMenu be parent of Control object I would like to have a control I have created have a System.Window.Forms.MainMenu as its parent. The menu will always have lots of available space on the right side and I want to take advantage of this. I tried to using the SetParent API but my control is not visible, even though it seems to be in the right place. I also tried using MyControl.BringToFront() in case this is a zOrder issue. I see that in PowerPoint there are maximize/minimize buttons appear in the exact place that I want my control, so it must be possible. Thanks in advance, Valerie Hough Tag: Swapping controls in windows forms Tag: 79903
  - 8
    - How to prevent more than one instance of form from being displayed? I have a button on a main form that uses the following code to open another window (this is NOT a MDI app): Dim objCustomize As New frmCustomize objCustomize.Show() My problem is that if I click on the button again, it loads another instance of the form so I now have two of the same form open. How do I prevent this from happening? Thanks in advance! Tag: Swapping controls in windows forms Tag: 79898
  - 9
    - Delayed displaying of a form? Is there any way to delay initial displaying a form until all controls have finished painting? I find it rather annoying that I can actually see the some controls popping up before the form has done drawing, as well as seeing scrollbars before the associated control. This is ofcourse particularly bad on slower computers and in cases where some controls are displaying lots of data (my grids and trees). I had considered something like setting the form visibility to false in OnLoad, and then setting it true in Form.OnPaint, but unfortunately both OnLoad and Form.OnPaint comes before each of the child controls' OnPaint. I cant seem to find any event that fires after all control have been painted. Tag: Swapping controls in windows forms Tag: 79894
  - 10
    - Scrolling question... I have two questions that I was hoping to get some input on: 1. How can I synchronize the horizontal scrolling of two controls on my form? I realize that I will have to use the Windows API to do this, but I haven't been very successful in determining exactly how. Are there any good API references for .NET developers? 2. What would be the most efficient way to paint the background of a scrollable user control in such a way as to suggest columns (using lines or vertical bars of color, etc.) ? If anyone can point me in the right direction, I would really appreciate it! Thanks! Tag: Swapping controls in windows forms Tag: 79892
  - 11
    - Collection How can I create a collection, thats readonly for extern users. Tag: Swapping controls in windows forms Tag: 79886
  - 12
    - the memory could not be read Dear Sir We did receive a memory error when we closing the program develop by VB.Net The error message as below. the instruction at "0x5047faa1" referenced memory at "0x14a390bc". the memory could not be "read" This .Net program included only one OCX develop by VB6 (SP6) and this OCX is running well in VB6 exe program. we include this OCX into VB.Net as well, It work fine as the VB6 exe program. But system keep on popup the memory error message during we close the VB.net program. We also use this OCX in asp.net project and it giving a same memory error problem during we close the IE6. The OCX included components as below -Microsoft Common Dialog Control 6.0 (SP6) -Microsoft Windows Common Controls 5.0 (SP2) -TeeChart Pro Activex Control v5 Note: The TeeChart Pro Activex Control v5 is 3nd component. We did post the memory error to thay support forums. But they can't give us a sulation. even the problem resaon. You can check the link below. Forum Title - Memory Erro http://www.teechart.net/support/modules.php?name=Forums&file=viewforum&f=1&sid=895af797e2bc6bd2ccdd078318e423e5 Please! Please! Help me... We really don't know hot to solved this problem. Thanks Cliven Tag: Swapping controls in windows forms Tag: 79881
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    - Memory could not be read Dear Sir I did receive a error message when I closed the windows form. the instruction at "0x5047faa1" referenced memory at "0x14a390bc". the memory could not be "read" The windows form included the OCX develop by VB6 SP6. This OCX without giving any error running in VB6 exe program. But when we included this OCX in to VB.Net Windows Form and it popup the memory error during we close the program. Anyway this OCX is running well in the VB.Net Windows Form except the closing memory error popup. We have same problem using the OCX in asp.net. When we closing the IE6. It popup up the same memory error. This OCX included few components as below -Microsoft Common Dialog Control 6.0(SP6) -Microsoft Windows Common COntrols 5.0 (SP6) -TeeChart Pro Activex Control v5 Note: TeeChart Pro Activex Control v5 is 3nd component. We did post this memory error to they support forums. But they didn't give us a sulotion. You can check below the link. Forums Title - Memory erro http://www.teechart.net/support/modules.php?name=Forums&file=viewforum&f=1&sid=fe919c28624f10882e51b9f16106d45f We really don't know how to solved this problem and we don't know why the memory could not be read. Please! Please! Anyones can help me... :'( Thanks Cliven Tag: Swapping controls in windows forms Tag: 79879
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    - CollectionBase class I try to write a class derived form CollectionBase and hide the methods: Clear() and RemoveAt(). In the documentation the methods are described as overridable (virtual). But any try like following fails with compiler error: public override void Clear() {} Error: cannot override inherited member .... because its not marked virtual, abstract or override. Isn't this possible, or what am I doing wrong? Tag: Swapping controls in windows forms Tag: 79877
  - 15
    - Open and close a word file Hi, I open a word file using ShellExecute. But I have to know when the open file is closed. How could I know this? Is it possible or not? Thanks in advance, Ruslan Tag: Swapping controls in windows forms Tag: 79875
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    - source of text in a drag-drop operation Hi, I'm using C#, and what I'd like to do is this. I'm dragging text from an external application (such as word, internet explorer, ect... I won't the source at runtime), and dropping it into a custom tree view control. I'd like the windows form to be able to collect some meta data about the source of the text, like the application that it came from, and the filename (word), or the url (ie), etc. For example, if I have some text in a word document, and I drag it over to my tree view control, I want the tree view to be able to know that the source of the text was a word document, and what the file name was that the text came from. Is this possible? Thank you, Ben Tag: Swapping controls in windows forms Tag: 79870
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    - english and spanish format mixture I have a VB.NET App and Access DB(Spanish), Win XP(Spanish) .. I have notice that for some operation (insert..etc)I need to set the format of dates to english and sometime I need to ser the format of dates to Spanish so in order to the program run well for every function I have to mix the formats, It is not logical What is the best practice to setup once the dates in a application? Ken Tag: Swapping controls in windows forms Tag: 79869
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    - Change Highlight Color in a Textbox Hello, Looking for help changing the Highlight color in a Textbox in VB.NET. Any Suggestions will be greatly appreciated. Thanks, Chuck Tag: Swapping controls in windows forms Tag: 79866
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    - key to parent I have a control that has a textbox embedded in it. This control is sitting on a form that also has an ok button that is the default button that closes the form (OK button). When that textbox has focus and a user presses enter, the default button fires. So to stop this I am overriding cmd key. However, the processing for the enter key actually needs to happen in the parent. I have tried hooking the onkey events and such from the textbox into the parent control but none of them fire when there is a default button on the same form. To fix this I could hang a delegate off the textbox and subscribe to it from the parent and call it when the processcmdmessage is fire in the textbox, but I'd rather avoid that. What I would really like to do is find some way to send the key from the textbox to the parent control cleanly through the message que. How exactly would I go about doing this AND is this even the best approach for the end result that I am needing? Tag: Swapping controls in windows forms Tag: 79865
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    - One-Way DataBindings? Hi, I have a form with two controls, one button and one textbox. At form load I add a databinding between the text property of the textbox and a public property MyValue of the form which gets and sets a string field. The string is initiated with the text "default" which also is what the textbox initially shows after the databinding has been added. When editing the textfield (and after tabbing out) the string field is updated as it should. However, I would also like the textbox string to change whenever the MyValue property is set from elsewhere in the form without having to set it manually. Shouldnt this be done automatically since I have added a databinding between these two properties or is a databinding "one-way" only? /Andreas Tag: Swapping controls in windows forms Tag: 79863
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    - How to calculate "physical" width of string Hi all, I'm trying to create a read-only RichTextBox that will dynamically adjust it's width to the string I throw into it. It should be a perfect fit. I must use RichTextBox, because some of the text can be in different color or be bolded. RichTextBox.Size doesn't work, since it is only an approximation. Does anyone know how to calculate that?? Thanks, Marcin Waligora Tag: Swapping controls in windows forms Tag: 79859
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    - Delete Record I am new to coding and vb. I need some help on how to delete a record from a datagrid that I have in a form. I am unable to locate any info on the web (it seems as though it is all asp) or from the help file. Below I have given two examples of code that I am working with, one is to load my datagrid and the other is to update my datagrid. Can someone please help with deleting a record from my datagrid? Private Sub Book_Load School11.Clear() OleDbDataAdapter1.Fill(School11) End Sub Private Sub btnUpdate Dim mynumber As Double Me.BindingContext(School11, "Student").AddNew() OleDbDataAdapter1.Update(School11) MessageBox.Show("Database has been updated") btnReload_Click(sender, e) Me.BindingContext(School11, "Student").Position = BindingContext(School11, "student").Count + 1 mynumber = Val(txtPhoneNumber.Text) txtPhoneNumber.Text = Format(mynumber, "(###)-###-####") End Sub Tag: Swapping controls in windows forms Tag: 79857
  - 23
    - Combobox Question..! Good Morning, I'm want to display names in a combobox. The problem I have is with duplicate names, I want to update or retrieve information on a certian person but if there are dups I get the wrong one. How do I load the names into the combobox and an identity field to tel them apart. Thanks.. Jim Tag: Swapping controls in windows forms Tag: 79856
  - 24
    - DrawGrabHandles Subclassing problem Hi, Im just wondering if anyone has come across a problem like this: I am writing a Resource/Dialog editor in C#. I want to allow resizable grab handles like .NET dialog editor does. So I decided it would be best to subclass from the Windows.Forms.Control class, so I could do the resizing for the handles. class GrabHandle : System.Windows.Form.Control { protected override void OnPaint(PaintEventArgs e) { base.OnPaint(e); ControlPaint.DrawGrabHandle(e.Graphics, this.ClientRectangle, true, true); } protected override void OnMouseDown(MouseEventArgs e) { // Create event handlers for mouse down } ... ... } The problem is that OnPaint() never gets called, either does OnMouseDown(). If there is anyone out there who has experience a similar problem, then I would really like to hear from them. Keith Tag: Swapping controls in windows forms Tag: 79855
  - 25
    - How trust in File system operations hi I'm using VB.NET I will be deploying my app on machines with Win98 also I'm using the Interop.JRO.dll file in order to compact a local Access DB.. IÂ´m using this code to save the Db before to compact this (just in case something is wrong in the operation..It already happened to me.. I dont know why) If Not Directory.Exists("\temp") Then Dim direc As DirectoryInfo = Directory.CreateDirectory("\temp") File.Copy("my.mdb", "\temp\my.mdb") Else File.Copy("my.mdb", "\temp\my.mdb", True) End If I don't trust in the file system operation (or windows whatever..) is it possible to include the file system operations into something like a transaction in order to be sure that if something unexpected happens everything will go to the original state? any sug beside this Ken Tag: Swapping controls in windows forms Tag: 79848

Hello,

Quite a simple one, however I don't know where to start.
In my form I have a treeview, splitter and some free space on the right of
my windows form.

Depending on which node in the tree is clicked I need to show different
things. i.e. either a list view, another form, text boxes etc...

Can anyone suggest the best way of achieving this?

Thanks in advance

Top

Re: Swapping controls in windows forms by Justin

Justin
Thu Nov 04 19:53:37 CST 2004

The best option is to have a static Panel on the right that keeps your ordering
with respect to the splitter. Then you can add/remove docked items into the
Panel and they'll fill your right space.

These controls can be embedded in a UserControl (the best way so that they
are easily design). As for Forms, you really can't show those in the right side
region.

--
Justin Rogers
DigiTec Web Consultants, LLC.
Blog: http://weblogs.asp.net/justin_rogers

"Lloyd Taylor" <lltaylor2000@yahoo.com> wrote in message
news:u1lc7ErwEHA.824@TK2MSFTNGP11.phx.gbl...
> Hello,
>
> Quite a simple one, however I don't know where to start.
> In my form I have a treeview, splitter and some free space on the right of my
> windows form.
>
> Depending on which node in the tree is clicked I need to show different
> things. i.e. either a list view, another form, text boxes etc...
>
> Can anyone suggest the best way of achieving this?
>
> Thanks in advance
>

Top