VS 2008 - Find Control By String Name Within Form
Sep 8, 2011
I need a function that returns a control within a form based on a string name. I've tried Jim's method here, but then found out that it will not work with SplitContainers. Therefore, I feel like I need to use a recursive function, or maybe a stack. I've tried many different examples online, but I can't seem to get any to work.
This is the code for the latest try, as taken from here:
Public Function FindControlRecursively(ByVal ParentControl As Control, ByVal ControlTobeSearched As String) As Control
Dim FoundControl As New Control
For Each CurrentControl As Control In ParentControl.Controls
[Code] .....
Note that the above code only seems to return a blank control.
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Sep 25, 2009
I have an list of controls(PictureBox) and I need to know which one of them is selected, meaning over which of them the mouse is. I thought about getting the location of the mouse and then comparing it with each PictureBox location, but it is quite slow.
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Mar 12, 2009
I'm an old Access developer and know VBA quite well, but now I'm working at learning VB.net. I'm trying to find the equivilent of the following Access VBA code using VB.net:
Function EvalField()
Dim x As Integer, ctl As Control
Set ctl = Screen.ActiveControl
x = Val(Mid(ctl.Name, 5))
Screen.ActiveForm.Controls("Formula" & x) = ctl
ctl = Eval(ctl)
UpdateTotal
End Function
This code sets a control variable to the currently active control, then copies the text from that control into it's matching "Formula" field for reference by the user), then turns the string of math into the answer. For example, if the user enters 5 + 4, that will be copied to the Formula textbox, then it will be evaluated and the answer will replace the 5 + 4. And lastly, the UpdateTotal sub will execute which will add this answer to the existing Total field.
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Aug 31, 2010
i have this program that allows multipal versions of one form when the program recives a command testform|this is a test|Admin testform is the form name this is a test is the message Admin is the user who sent tit what i want to do is use the name to find the form >>>> add the message to a text box on that form >>> tell them who sent the message in it as well but i dont know how to find the form or add to the box on it?
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Sep 17, 2010
How i can find the whole line from a particular string? I need to find below line where the line start with "<dbSP"
<dbSP DbServer="MySQL" SelectedField="name,email,mobile" table="Uprofile" />
So if any line start with <dbSP i should able to get whole line in different variable.
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Sep 26, 2011
At some point in the past, I have added a TabControl1 to my Form in design, now I can't find. I need to view it so I can make some changes. I have looked in the 'Document Outline' and is not there as well. However, the control must be somewhere because it works fine when I run the program.
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Dec 18, 2009
I need to determine the child control with focus - I've got lots of controls in panels and other container controls so the ActiveControl is simply coming back as the TOP LEVEL panel I was trying something like this:
[Code]...
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Mar 12, 2010
#@$#^@ regex have i don't know to use it yet so something like
<img src="find this" alt="Click if
<img src="/validator/11917876/1268416778.gif" alt="Click if
I'm trying to get this src and have PictureBox1.Load[URL] & "regex code" for the captcha to see if over picturebox1
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Dec 25, 2011
I have to find a string in a huge text file ( ~ 50MB) and then replace it.Since it's quite huge I tend to open the file and then read line by line, and then replace the necessary line(s) (rather than "readall" the file of course).My question is how to replace the whole line?Let's say I found the line that should be replaced . I know I can create a copy file and copy all lines into there ... but I'd prefer to replace the line in the original file rather than creating a copy instance.
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Dec 26, 2009
The following code works perfectly to allow moving a control on a form at run-time. However, when AutoScroll is set to True on Form1, and you drag Button1 past the right and/or bottom bounds of the form, it goes haywire. I really need someway to smoothing control the autoscroll so that as you scroll the control off the form, the scrollbars smoothly appear.
[Code]...
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Feb 22, 2012
After a little research, I managed to get a working Help button added to my form. I did this by setting the MinimizeBox and MaximizeBox properties of the form to false, set the ShowHelp property of the form to true and added a HelpProvider component. I then added a string to each control's HelpString property that I want to display help on.
Everything works with one minor exception. When I clcik the help button in the form and then select a control, the HelpString (tooltip) is displayed in the far lower left corner of the screen. I assumed I would see this pop up at the cursor rather than where it is. I cannot seem to find a property to control the position of the HelpString popup.
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Aug 5, 2009
How to find Rect values for my program so i can click in it?[code].....
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Oct 13, 2011
I have created simple windows form control with some events.
This form has button which opens Form with some settings.
Now, I need to raise the events inside the control when I click some buttons within the settings form ..
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May 14, 2009
I'm redoing a program I made up a while back and need some help changing a loop. The original program had all the text boxes on same form, the redesigned program still has them all on the same form but I have them spread across multiple tabs and the background of the form.
The code below loops through each possible text box and if it exists sets the value in an array. This only works for text boxes not on tabs. I found I could change the Me.Controls to TabPage1.Controls and that would get the text boxes on tabpage1. I would like to have a single loop that can find them on any tab and off the tabs, so I don't need three separate loops.
For num = 1 To 61
For Each controlctl In Me.Controls
If controlctl.Name = "TextBox" & CStr(num) Then
[Code].....
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Nov 22, 2009
I have a modified button control with a string array in it. I am having trouble sending the string array to the form with the modified button on it. Anyone know what i can do? The form uses a arrayList to hold the buttons since they are made at runtime.
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May 9, 2010
Dim Page16 As String
Page16 = Application.StartupPath & "ResourcesHTMLPage16.htm"
WebBrowser16.Navigate(Page16)
[code].....
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Aug 8, 2010
I am currently writing a VB.net app to control an Integra AV receiver. I have success controlling it via Serial, but it also has a network port for TCP control. I can control it using CommandFusion iPhone app but am now wanting to create a windows app to control it. I have created client/server software that I use to talk from one PC to the which works well. So I am going to use the same client software to talk to the AV receiver. I can connect fine to it, I just haven't quite got the protocol right to actually control it.
[Code]...
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Apr 8, 2011
I've completed projects similar to this in the past but this one has me stumped. Trying to retrieve text from a text box in a third party application. Using SPY++ I found that this control is the second control in the list so I coded the following: Dim parentWindow as integer = windows.ReturnWindowHandle({windowname})
If parentWindow > 0 then
Dim childWindow as integer = FindWindowEx(parentWindow, 0, Nothing, {child window name})
Dim field as integer = 0
[Code].....
This worked great. Closed the app, came back the next day and this same code did not work. Used spy++ and found that the control had moved to the 4th position. Closed it, reopened it, this time it moved to the first. What is the best way to find this control each time when there are are 50+ controls on the screen and they all appear in spy++ like this:
Window 0022063A "" Edit
Window 00270652 "" Edit
Window 001A0630 "" Edit
and they continue to rearrange themselves each time the application is closed and reopened?
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Dec 9, 2009
I got an error that i cant convert string to System.Windows.Forms.Control and i was wondering how could i do it this is the code that contains error:
If ResultRichTextBox.Contains("Text") Then
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Sep 10, 2011
Using VB.NET, Is there a way to do this RegEx call in 1 step... instead of 2-3? I'm trying to find the word "bingo", or whatever is between the START and END words, but then also inside the inner FISH and CAKES words. My final results should be just "bingo".
Dim s1 As String = "START (random string) FISH bingo CAKES (random string) END"
[Code]...
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Jan 19, 2010
I have created a User Control (UC) where user type the information it needed and save it ti MS SQL Database and also have created a User Control dedicated for it's button, since my main form has split container and has two panels, one for UC which contain the button only and the other one for my Main UC where user enter the information.I created a Module that contain the function on adding the data type in UC Main to the database.
[Code]...
on My UCButton named "Save" I just call the function AddUserInformation. But the problem is the variable where it bind to the ucUserControlMain textbox remains Blank, When i query the my database table, only the UserInforID and the DateAdded has been updated and the other column remains blank where the variable get it in the UCMain Textbox...
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Dec 16, 2010
I working on a VB.NET project to manipulate a VB6 form using COM Interop. Some of the controls on my VB6 form are indexed and some not, so calling ctl.Index fails on those that have no index. Is there a way to work out if a control is indexed?
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Apr 28, 2011
I was trying to do a simiple, fine a string start position, or a string, and it always returns 0
Dim My_Search_String As String
Dim My_Text As String
My_Search_String = "fsl fwb fcb"
[code].....
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Mar 25, 2010
I am trying to use a VScroll control on my form but it seems it doesn't want to cooperate! Here's what's going on : I want to use a VScroll control with these simple properties :
Minimum = 5
Maximum = 10
SmallChange = 1
As we all know the VScroll has an arrow facing upwards and another facing downwards. I simply want to press that cute little arrow that looks upwards and to increase the value by 1. Respectively, when I press the other cute little arrow facing downwards I would like it to reduce the value by 1. However that uncooperative controls does exactly the opposite thing! I looked in MSDN and in a VB2008 book I have and found out that actually the up arrow is used to decrease the value! In the whole universe upwards means increasing and downwards decreasing, how come VScroll is not respecting that?
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Apr 15, 2009
this forum, I made a custom numeric TextBox that was designed to accept monetary input.
vb.net
Public Class moneyTextBox
[code].....
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Jan 23, 2009
This relates to WPF but is broad enough that a winform answer will do. I have made a few custom controls in the past by inheriting from whatever particular control I wish to inherent from.
I have noticed that I can add a form to a class/user control library from the add new dialog and have it run. When this application is compiled I get a DLL.
So my question is can I use a Form as a custom control. The reason I ask is I am creating a more advanced MsgBox for a new application I require and a form as its container makes the most sense.
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Mar 21, 2010
I have added a freshly compiled ObjectListView.DLL to my VB.NET project and I've added a ObjectListView control to my form. But, thus far I have been unable to do anything with it except make it throw exception errors of various kinds. I know I'm not supposed to use it using the same syntax that ListView uses, but the documentation for this control is as well developed as MSDN's for ListView--which is to say vague to nonexistent. I can't use ListView because it gives me no control over row height and cell padding. Both need to be minimal, but with the defaults used by ListView, you could move in and and make a living between the entries. Too much space. I need things compact because the application I'm developing needs all the real estate it can get for other purposes.
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Sep 15, 2009
I have been trying for ages to put an ActiveX control on a windows form for a CCTV camera I am using. I have registered the control with windows, added it as a reference to my VS2008 project and now it appears in the toolbox.When I put the ActiveX control on the form I always get an error saying "Failed to create back buffer surface" The control is added to the form however I can not get it to work and I suspect it has something to do with this error.I have an example project from the developers of the camera that does not have this problem, i.e. I can add the ActiveX control with no problems, however the program is in C++ and I am using VB.Net.Is there anything else I need to do to stop this error from occurring?I am using a CCTV camera from Zavio (F521E). The ActiveX control is called AxVideoView.ocx.
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Dec 16, 2010
I have a Mdi form and I need to put a control on the form which the user can resize. Now I need a container can be dragged by user to increase it's size. The split container will not work in my case as I have childforms and stuff. I want a container whose size can be increased by dragging it on one side.
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Sep 16, 2010
Dear all, I'm new in the forum. I have a simple but annoying problem: in a ordinary form I added a label (Label1) and a button (Button1) with the followiing handler.Well if I press Button1 my dot dashed line is correctly drawn over Label1, but what I need is that program automatically does it on form loa
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim Graphic As System.Drawing.Graphics
[code].....
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