I am having a bit of a problem adding an MSTSCLib.MsRdpClient7 control to a tabpage form.The code snippet at hand:
Dim t As TabPage = New TabPage
Dim rdpcount As Integer = 0
If Not rdp Is Nothing Then rdpcount = UBound(rdp)
Debug.Print("Current RDP count: " & rdpcount.ToString)
[code]....
This code bombs on that last line with the following error:
System.InvalidCastException was unhandled
Message="Unable to cast COM object of type 'MSTSCLib.MsRdpClient7Class' to class type 'System.Windows.Forms.Control'. Instances of types that represent COM components cannot be cast to types that do not represent COM components; however they can be cast to interfaces as long as the underlying COM component supports QueryInterface calls for the IID of the interface."
I have a tabgroup with 2 tabs. During runtime, I wish to add new ones. Though I can get the tabs added, I cannot seem to add the ListBox that is supposed to go with it. In the code below, I added '*' to indicate a line I added to try and fix the problem, but (obviously) don't work.
Dim newTab As New TabPage("Group " + g.userLabel.ToString()) newTab.Name = "Tab" + g.userLabel.ToString TabGroups.TabPages.Add(newTab)
I have an MDI application, say name of MDI is MDIParent. From form1 I am adding new tab pages to form2. In the first tab of form2 I have generated a ListView by calling a ListViewCreate() function in Load event of form2. I am not able to generate ListView for the new tabs. I tried calling the ListViewCreate() while adding newtab. But, it is not creating listview nor throwing any error.
Hello - I am using Visual Studio .net 2008. I have a form that has a tabpage control in it with 5 pages. I need to add another page, but in position 2, not at the end. Is this possible? I do not see any settings for the position of the page. Looks like I can only add one at the end.
I'm having a lot of trouble trying to add a new control to a dynamically created TabPage at run time, I have viewed many threads with similar help requests and cant seem to make the codes work!
Here's what I've got:
Dim albumscount As Xml.XmlNodeList albumscount = config_doc.SelectNodes("component/config/menu/album") i = albumscount.Count - 1 Dim albumtitle As Xml.XmlNode
I am using Visual Studio 2008 and recently a weird bug has appeared.In my forms I have a tab control with multiple tab pages. I can place a control on a tab page fine, but when I move it by way of clicking it and dragging it to another location, it leaves behind an outline of where it should be. Looking around, it has moved to the first tab page
I am using System.Windows.Forms.TabPage to store an entire TabPage for later use in My.Settings. Here is a brief description of the application.
I have a TabControl that has 3 tabs. One for user input, another tab for equipment settings, and then a final tab for Oven settings. On the user input tab, if the user de-selects the checkbox for Oven, the oven tab is saved to My.Settings and hidden.
I can then run the application without oven control. After running, lets say the user would like to re-run, this time with the oven. They go back to the input tab and re-select the Oven checkbox. However, the Oven tab doesn't re-appear. When stepping through the code, the is nothing stored in My.Settings for the oven tab page. Why not?
Also, I can open the application, and check, then uncheck the oven checkbox and the tab is hidden, then returns. I can do this all day. However, after running the tab will not return.
I'm struggling how to set up MDI interface where I have a tabpage control on the parent form. Each individual tab page should act as a parent to multiple child forms but within a tabcontrol there is no IsMdiContainer property like on the form.Is it possible to set a tabcontrol to act as a parent?
I want to make a new RichTextBox contorl when a new tab page is created. I also need that control to be the child of the tab page. I created a class for the tab control. And a class for the RichTextBox control. I dont know how to start this. I have made a class for the RTB because I figured I could override the sub new procedure but you can't so i just declared it as public and set what I needed it to do. But it doesn't work.
I want to make a new RichTextBox contorl when a new tab page is created. I also need that control to be the child of the tab page.
I created a class for the tab control. And a class for the RichTextBox control.
I dont know how to start this. I have made a class for the RTB because I figured I could override the sub new procedure but you can't so i just declared it as public and set what I needed it to do. But it doesn't work.
I have a GUI that allows a user to add tabpages to a tab control. Everytime the user adds a tab, a user control is placed on the new tab. The user control has a background worker on it, as well as several other controls. My question is this: Can I access the backgroundworker specific to a tabpage? In other words, can I tell the program to use the backgroundworker found on tab index 0 to run a process, and then tell the backgroundworker on tab index 1 to run a different process?
I have a application with a tabcontrol. I dynamically open new tabs on which there is a custom control which is made of a graph and a datagridview with data. I fill this from a csv file. when I open few tabs like this my application memory goes over 120 MB. When I remove the tab I call the dispose on the custom control and a dispose for the tab. But the memory stays where it was (120+MB). It goes down only if I minimize the program. And when I show it again its around 10MB.
I would want it that upon pressing the Tab key in the last control of the TabPage then it will go to the next tabpage and focus on the first control there that has its TabStop set to true. I could trap the Tab key in my current implementation but is there be an easier way?
I want to customize the tab control the tabpage headers shoud fill the tabcontrol header. if there are only two tab pages then the header should be divided into two parts and please give me good info about tabcontrol custonmization for better look and work
I want to customize the tab control the tabpage headers shoud fill the tabcontrol header. if there are only two tab pages then the header should be divided into two parts
and give me good info about tabcontrol custonmization for better look and work
I Try so many times to change TabPage Size and Form Size when I shif from One TabPAge to another, This because every TabPAge consist of defrent volume of control which need to enlarge and reduce the size. But I couldn't make it.
winforms .net 3.5 Ultrawingrid 9.2 In my subclass of Ultrawingrid.Ultragrid :
[Code]...
This works fine. But when the grid is dropped on a TabControl tabpage, the ctrl-tab looks very different to the sub above. e.keycode is seen as controlkey {17} I realize that by default cntrl-Tab moves between tabpages. I need to override this behavior. My thought is I probably need a subclass of the tabControl which will pass the keycombo through just as the form does but I confess to being clueless as to how to accomplish that. I tried to override the onkeydown of a tabcontrol subclass and just issuing a return and not and base call to onkeydown if the ctrl-tab combo was pressed but it seemed to see the e.keycode as controlkey as well.
i frequently have troubles with the dock property. it seems that either the order of creation or adding to the parent control determines whether or not a control's dock property supersedes another's. e.g. a control with the dockstyle fill will overlap with another docked control on the same parent. does anyone know what the rules are to determine how docking will behave; particularly in dynamically created GUIs?
1. when i pick a value from a combo in next col of data grid which also have a combo should populate conditionally.
2.when i edit the cell having combo previous selected value is overwritten by first value of combo it should be if i select any value from combo but should not over written default as i click the cell. (edit mode is on click)
3.by pressing enter key cursor should jump to next cell in same row . means navigation should horizontally but should jump to first cell of next row if cell is last cell
I have an asp.net usercontrol which represents a "popup" dialog. Basically, it's a wrapper for the jQuery UI dialog which can be subclassed to easily make dialogs. As part of this control, I need to inject a div into the page the control is used on, either at the very top or very bottom of the form so that when the popup is instantiated, it's parent is changed to this div. This allows "nested" popups without the child popup being trapped inside the parent popup.
The trouble is, I can't find a safe way to inject this div into the page. A usercontrol doesn't have a preinit event, so I can't do it there, and calling Page.Form.Controls.Add(...) in Init, Load or PreRender causes the standard exception "The control collection cannot be modified during DataBind, Init, Load, PreRender or Unload phases."
I thought I had found a solution by using. ScriptManager.RegisterClientScriptBlock(Page, Me.GetType, UniqueID + "_Dialog_Div", containerDiv, False) which seemed to work well normally, but recently a coworker tried putting an UpdatePanel inside the dialog and now she's getting the error "The script tag registered for type 'ASP.controls_order_viewzips_ascx' and key 'ctl00$ContentBody$OViewZips_Dialog_Div' has invalid characters outside of the script tags: . Only properly formatted script tags can be registered."
How are you supposed to add controls to the pages control collection from inside a user control?
I am programmatically creating a Tabcontrol and adding Tabpages to it. To each Tabpage, I am adding 2 Pictureboxes (Testpicture1 and Testpicture2). The amount of Tabpages depend on the amount of frames in my .tif file. So, each picturebox holds an image (frame) from my .tif file sequentially from˜0 to totalpages. All good so far. I can click each tab and correct images are displayed in correct order. The problem is that when I drag a control (picturebox) and try to add it to Testpictue1 or Testpicture2 it does not work correctly. At first I thought the it didn't work at all, but when I checked each Tabpage I have found that all pictureboxes got added (draped) to my last Tabpage, in this case Tabpage4. So this is puzzling. Even though each Tabpage holds 2 Pictureboxes and they display the correct images yet the picturebox is added to the Testpictue1 or Testpicture2 of the last created Tabpage? [code]
This question is about VB.NET. I'm quite a novice on this one, so please forgive me if you feel that this question is nothing short of crazy or whatever. Anyway, I've been a creating a simple Windows addressbook Form application. We all know for a fact that a single person can have one or more addresses, of which a one-to-many relationship holds true. So there, my application also has to be able to edit each of these addresses (by the way, my application uses an Access Database, which really sucks but it's part of my task), and I already thought of using a control array (just like in PHP but it obviously never worked in .NET) for me to edit them. How am I supposed to implement this?
I would like to add a control to read *.xps files, but I don't know which component to add. Which do I add, and in the future, where should I look to find such an answer?
I'm trying to add control to the ASP.NET page. Controls are added successfully but can't access from code behind. In the sample below, when Button1 is clicked, there's no element in "uploads" (type HttpFileCollection).Here's my mark-up:
<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="add-remove-control.aspx.vb" Inherits="APIU.Web.add_remove_control" %> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">[code].....
Why there's no element in "uploads" (type HttpFileCollection)?
I'm having trouble adding a new control to my toolbox.I downloaded the projected and extracted.I the went to the VB toolbox, rightclicked the mouse button and selected choose items. I then clicked the browse button. I selected the folder I had extracted to and then went to bin/debug/menucontroltest.exe.
Lets say I have a tablecell and I want to add to it more then one control To HyperLinks for example (I know its ASP.NET but I guess its the same cause its still visual Basic) I can add one control by using TableCellID.Controls.Add(NewHyperLink) But if i want to add another Hyper Link, How do I do that ?
I'm looking for adding a control on top of others controls during runtime.
I read that the only way of playing with the Z-Order of controls is by playing with the order of the controls inside the Form.Controls Collection. I find this solution very weird and weak and I'm looking for an alternative.
Does anyone has an idea? I just want to make some kind of modal dialog that'll show below another user control to notice the user that the user control is currently doing something.
Edit: I tried using Control.BringToFront() but it doesn't work at all.
