Create Controls On Runtime Based On Templates?
Nov 28, 2010
I am looking to create several custom controls (PictureBox Derivatives) on during runtime. I've read that the best way is to create template controls that will be created, and duplicate them in the Controls array.
Well, that's all fine and dandy, but what's the best way to store the template? I considered a seperate form with all the templates laid out on it for easy access for my editing, and keeping them out of the user's sight. I also considdered doing a Struct for each template, and smply mirroring values onto the control being created from the Struct to the created control.
I'm looking for ease of development first and foremost, as I'm most likely going to have a vast number of these templates, and keeping the system as simple as possible will eliminate a lot of hair-pulling. After development ease, I'd go for optimisation.
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Jun 21, 2010
I want to create controls in runtime and attach them to an already connected database..
the controls must vary e.g.Array of Strings can be used.
how to place these controls on a panel in a orderly fashion.
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Mar 15, 2009
Supposedly I have a datatable containing 2 columns (controlname as string, containing the name of the control and controltype as string containing the type of the control), for example ("label1", "Label") On runtime i want to loop over the datatable and create the controls from that datatable and add them to the form accordingly. but the problem that i don't know how to convert the control name to a control type, meaning that i want to convert label1 to a type of control Label, inorder for me to set its properties on runtime. so how can i do this and is there a way to convert the string to control according to it controltype.
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Aug 30, 2011
I want to be able to select any control on the vb form at runtime. These controls will be added to theform on a click of a button. So essentially I want to dynamically be able to add and then select these controls at runtime. I would also like to make these controls dragable on the form.
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Jun 12, 2012
I need to create a sample question types web form in VB.NET which allow user to the following:he user selects the control type from dropdown (TextBox, RadioButton, ListBox etc). Generate controls dynamically based on the control type on the webform.It will always show the TextBox (where user writes the question) and (generated control - TextBox, RadioButton, ListBox etc) and save those values to the database.
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Jul 18, 2009
Having:
<asp:FormView ID="frmEmployee" runat="server">
<EditTemplate>
<asp:TextBox ID="txtFirstName" runat="server" />
[code]....
is there a way to reference this control statically, without having to use FindControl?
VB.Net
txtFirstName.Text = "George"
C#
txtFirstName.Text = "George";
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May 27, 2010
Where and how do I look for to access the default templates of say for e.g a checkbox, so that I can modify few styles in it.
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Jul 2, 2009
I have created a Customized Excel template for Office 2007 using VSTO. currently i am showing this template under my templates. is it possible to show under Installed templates?
like we have in office 2007 Billing Statement, Blood Presser Tracker, Time Card , etc. Is it possibe to show the template which is created by me; under Installed templates?
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Jun 30, 2010
Basically in visual basic 6 I could access word tables in existing templates with the code owordactivedoc.tables(1).select() where owordactivedoc refers to the active word document and tables(1) refers to the first table in the template.Trying the same code in VB 2003 just leads to errors. Secondly how do I access bookmarks or alternatively word variables.Furthermore how do one deploy web.services. For example the current program I am building is for another computer. Simply copying the web service to Inetpubwwwroot dont work because it is not picked up by the Internet Information Services program. I have to create the web service in vb2003 on the other computer change msconfig manually. Copy and paste the existing service vb file in the created folder replacing the empty vb file.
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Apr 6, 2011
I am creating a project in VB.NET in which one of the reports require that the name of employees should be displayed as column names and whatever work they have done for a stated period should appear in rows below that particular column.Now as it is clear, the columns will have to be added at runtime. Am using an ODBC Data source to populate the grid. Also since a loop will have to be done to find out the work done by employees individually, so the number of rows under one column might be less or more than the rows in the next column.Is there a way to create an empty data table and then update its contents based on columns and not add data based on addition of new rows.
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Dec 31, 2009
What i am tring to do is execute certain code based on a variable held in a module someting like compiler directives, here's an example for lack of an explanation.[code]...
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Dec 26, 2010
My registration form has to support multi laguages at runtime based on user selection language from combo box in windows based application using vb.net
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Sep 16, 2010
I had this question before "Resize image on the fly make the image lose quality online but locally works nice".And what i got now is that it's not a problem of local or online, i ran this resize on the server itself "dedicated server", and i got the same bad quality image, so the problem is in the IIS configurations.What in iis can make this bad quality image happen?
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Jan 15, 2012
"add controls at runtime" how to add code to the controls. kinda useless with no code, ehh? all results only told me how to add the control, that's it. well, this result is different. i will teach you firstly how to add controls at runtime, then how to apply code to them at runtime
Firstly, add the controls:
[CODE]..............
Now run it. do you have a button on the form? if yes, excellent. if not, you made a mistake. try again now how to add code? you may have noticed that when you double click on any control, it says private sub button1_click(blah, blah, blah) Handles button1.click where it says handles button1.click is what determines when the code executes under what event for what control (in this case the click event for the button1). this won't work when adding code at runtime. did you notice in the above example i added a with event, and addHandler? this is what creates the handler (same as Handles button1.click)
Now we add the code for the runtime control
[CODE].........
Above, the addressOf button1_click tells the program to execute the sub button1_click when the button is clicked on (as determined by .click) but i know what you're thinking! your thinking "why would we even BOTHER doing this at runtime? isn't it easier to do it at design-time in the first place?" yes it is, providing your not writing a plugin. plugins are code based, not GUI (also reffered to as WYSIWYG). to update existing forms using plugins, you need to use this method.
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Mar 29, 2012
I have created a form Dynamically at run time using this below code but how can i add controls to it.
Dim NewFm as Form
NewFm.ShowDialog()
how can i add treeview to this form and populate with data during runtime?
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Jun 1, 2009
is there a tutorial (i looked, couldn't find) on adding controls at runtime?
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Jan 1, 2010
I've created a code that will add a control on runtime.
Sub Button_AddNewGradeEquivalent_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button_AddNewGradeEquivalent.Click
Dim newGradeRepresentation As New TextBox
Dim newGradeCondition As New ComboBox
Dim newGradePercentage As New TextBox
TextBoxItems += 1
[Code]...
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Mar 10, 2010
I did something that when I now load my program(VB 2008), my controls; combo boxes, buttons, progress bar, etc. look like they are from VB 2005 or like VBA buttons, not the rounded edge buttons of 2008.
They look like vb 2008 controls while I am in design view, but then they change their style when I run the program..
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Feb 12, 2009
I have a situation where i'm populating records in datagridview from a table where first column is the ParameterName, Second Column is ParameterValue and third column is ParameterType.When i click on second column in any row as per the records, it should show the control type in this cell as per the third column parameterType.[code]
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Apr 29, 2010
I was wondering if there was a way to dispose a control that i generated at runtime in a diffrent block of code, The reason why i can't dispose of the control in the same block of code is that the controls settings depend on what the user imputs. For example if i generate the control on a timer tick the code would look like this,
[Code]...
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May 18, 2009
In the helpfiles of Visual Studio 2008 I read control arrays are no longer supported. There is an example for the new situation but then you need to hard code the names of all the controls beforehand.I do not know how many controls I need, could be one or 5000 (think simple image browser). Is it still possible to create something like that or should I change to a different programming language like Phyton? At the moment I work around it by using a browser control and then manipulate the <img> tags but I'm puzzeld as to why this functionality was removed and if there's a solution to the problem.Another thing I don't understand is where the app goes when it's installed with 'Click once'. It dissappears completely, doesn't show up in 'Program Files', can not be found by the search function but it *is* somewhere because you can start it form the Start menu. However, I use data which is in a subfolder of the program folder, which I nor my program can find any more after the app is installed. The program runs but it can't find any place to put/get its data so in the end it doesn't work.
I work around it by *not* installing the program but have people just run it after unpacking the downloaded folder. This works great but I wonder how long this will be the case until Microsoft disables this possibility? I have no idea why they would, but I also have no idea why they did remove the functionality I mentioned above. I already changed to PHP and MySQL because I had to throw away my carefully built W2K+MSAccess image database a few years ago and after installing Vista Visual Studio 2005 was a goner. OK, I upgraded but then no control arrays any more and now they hide the apps when you install them? Why on earth would they do that?
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Jun 4, 2010
I am attempting to move all controls on a form down or up by the height of a menubar depending on whether it is visible or not. I have code which I think ought to work well for this, however it seems that Me.Controls is empty at runtime, so my for each loop is never entered. Could someone please offer a suggestion as to how I can move the controls?
Private Sub uxMenuStrip_VisibleChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles uxMenuStrip.VisibleChanged
For Each control As Control In Me.Controls
If control.Name <> "uxMenuStrip" Then
[code]....
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Mar 4, 2009
How do you position controls loaded at runtime to align middle? I'm not looking to match the x y coordinates as the heights vary.
For example loading 2 text boxs and 2 labels.
I've tried using the Anchor and Dock properties but with no joy.
e.g.
txtNewTextBox = New TextBox
txtNewTextBox.Name = "name"
txtNewTextBox.Dock = DockStyle.Fill
[Code]....
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Dec 25, 2010
I have to implement an application that allow the user to design his own card, the user will be able to drag and drop controls from toolbox and move them in the form and re-size them.
I can't make the control to be resizable,and i want to make the control just like the one in visual studio designer with the container that allow user to change the size ..
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Sep 27, 2011
I have created a custom control in visual studio 2005. It contains a picture box with and image in it with 2 text boxes on top. I want to be able to resize this image by selecting the edge and clicking and dragging it.
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Sep 21, 2011
I have so far written a program where you click a button and a custom control is added to the form. These controls can then be dragged and positioned anywhere on the form.I know want to be able to align/snap these controls.Please advise if you know of a way to drag a control on a form and snap it in line with another control?
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Mar 19, 2009
I have most of this working, but there are some issues yet. Basically, it's a "History" form for patients There's a date field for each entry, and if that date doesn't match the date you're accessing the form I want it to disable all controls so you can't edit the form.So it would have to check the current date with the date that is on the form.The issues I'm having are this. It seems to work because when I click today's date nothing gets locked like it used to, but when I do click another date everything in that form gets locked, including the override button and the scrollbar. I don't want the scrollbar locked, and I want to have an override button so the user can edit the form if they truly wish. It also locks the DateTimePicker so I can't pick another date, I don't want that locked either.I tried enabling the DTP in the sub below but it must get ignored
[Code]...
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Oct 15, 2010
I have a form with some textboxes on it. The textboxes show values from a table. I have a binding navigator that lets you step through the records in the table and the textboxes update. What I want, is to have a control, say a listbox, that allows you to select a value which will filter the data behind the controls so that you only have one record.
So, for example, say you have a table of contacts. There are textboxes on your form that show name, phone, address etc. You could then have a listbox that showed a list of all the contacts and you could select one, which would in turn the textboxes. The filtering field could be contactID for example.
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May 28, 2009
how to add controls in panel control runtime. I mean, I want to add group box at runtime. When I click on my button, it should add a group box in my panel and when I click again, it should move the first group box down and add the second. Every group box should have a label control in it.
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Jul 1, 2007
I am having some problems adding controls at runtime, or I guess I should say accessing the controls after adding them.The application starts off with a tab control named "tabIncidents" and one tab for an incident information. The user can click on a button to add a client. When the button is pressed a second tab is added to "tabIncidents" named "Clients." On the newly created "Clients" tab another tabcontrol is added named "tabClients" and we create a tab named "Client". Multiple "Client" tabs can be created on this tabcontrol. Each "Client" tab gets a usercontrol added named "clientInformation" which has name and address textboxes.
So basically it is ...
TabIncidents.tabFirstTab (already exists)
TabIncidents.Clients (new tab added at runtime if user clicks a button)
TabIncidents.Clients.tabClients (new tabcontrol on the new tab)
[code]....
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