C# - Functionality Using .net To Select An Area By Dragging At Runtime?
Apr 29, 2011
I am trying to code in .Net to select an area and the area will be where ever in the form, that is not restricted to a control and asusually the area appears like a square by dragging using mouse at runtime on the form and if on clicking on a button for ex "Save" i.e., saving the selected area and when the next time the page loads that particular area should be clickable.Right now i have no idea where to start but if some idea is given it will be more helpful to me to develop some code for this functionality. Does any one give a small idea that how can I do this functionality, so that I can proceed developing code?
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Sep 3, 2011
Im working on 'Virtual iPod Touch' project and I'm almost done..but one thing annoying me..im using drag 'n' drop to make lock slider..1 got 1 picturebox with lock arrow and 1 black (transparent/invisible) with allowed dropping...and its all ok but I want only I can slide (move mouse) in area for sliding (see a picture, but I think all of you understand).
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Aug 26, 2011
I want to create a dial which is basically a circle that I can drag around in a circular motion. Ive looked at using the code in an earlier post which allows you to drag items around a screen but I cant figure out how to confine the movement so it only allows the user to drag this circle around in a circular motion. Any coordinate altering I do just looks snappy.
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Sep 3, 2009
I have already created the provision to allow the user to create and delete the button control at runtime. But now i am stuck at the dragging part. I am planning to let the user to drag the button using the mouse click event and the keyboard (left,right,up and down) key event.
May i know if there is any codes that allow the user to drag the button control around?
the below is my code for the creation and deletion of button controls at runtime.
Public Class Form1
Dim tm As New Timer
Dim Index As Integer = 0
[Code]....
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Nov 20, 2009
i need to be able to drag and drop my picturebox with an image in it around my winform in vb.net.
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Sep 4, 2009
May i know how to code to enable users to drag picture into the picturebox and be able to open the picture automatically once the user let go of the mouse click event, but if the user leave up the mouse click button on the main form then a msgbox will pop up saying this is not the correct place to put in the picture and the form will not be able to open the picture.
[Code]...
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Oct 8, 2009
i recently created a motion detection program. I want to add the option to select (creating a rectangle) a small area that will check only in that selected area for motion detection.How i`m i going to give this ability to the user. I will use the System.Drawing correct?What`s the command that allows the user to draw a rectangle on a picturebox?So if i have the coordinates of the rectangle i can handle pixel to pixel comparison....
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Nov 12, 2009
I would like to select and copy in the clipboard a text chat row (the last row), so to save, row after row, the whole chat in a file To select the row is sufficent a single clik into a row, so that my idea was to simulate the mouse clik in the last row and then simulate the Control+C key press
Private Sub Timer_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer.Tick
mouse_event(MOUSEEVENTF_LEFTDOWN, Pos1, Pos2, 0, 0)where Pos1 e Pos2 are the coordinates of a whatever point the chat row BUT THIS WORK IS NOT GOOD the mouse cursor becomes unusable with the normal work, so that it is needed a different idea, that makes the job INDIPENDENT from any other work made at the PC in the same moment
now the question is: any idea as how to solve the problem?
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Oct 15, 2009
The textbox that I create in vb.net does not let me select all the text using the common keystroke control + a at runtime. The textbox is able to detect all other keystroke combinations at runtime, such as control + c, control + v for cut and paste, but it does nothing for when the keystroke control + a is pressed. Is this something that vb.net textboxes do not detect and therefore I would have to program manually by having the program detect keystrokes and then have the program select the text using the code TextBox1.SelectAll() ?
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Jun 11, 2012
Trying to set the viewable area to a smaller screen area and have it cycle through as the person moves using collision detection to move the backgroudn image. Here is the start but its off to a bad start so far.
Public Class Form1
Dim Mapx As Integer = 600
Dim Mapy As Integer = 2000
[code]....
Basically the forum size is set to 600x2000 but the client should only allow you to view 600x600. I want it to add +1 once you "collide with a invisable box I'll add and this will redraw the screen.
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May 12, 2010
I designed a form and managed to fit graphics inside it. Picture box is 465 pixels high. Form1 is 500 pixels high. SnapShot of the screen verifies that the 500 pixel height is the overal height. It includes the upper Bar and lower frame. Is there an instruction to set the From's inner pixel size and not overal?
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Jul 7, 2010
I was wondering how can I select all of the images in a richtextbox at runtime .For example, suppose a file is loaded into a richtextbox control (system.windows.forms) [code]...
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Oct 6, 2010
I am writing an app that puts multiple controls on a form at run time and then I edit the controls in a property grid. All that is working fine. I'd like to 'mark' the contol when it is 'selected just like visual studio does with the dotted border (or soemthing similar, I don't care that it is just like vs). I'm already using MouseDown event to grab the control and send it to the PropertyGrid, but I have now wired it up to take multiple controls and need to 'identify' them on the screen.
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Jun 5, 2010
I add my tab pages at runtime, I am trying to select a tab from a sub.
This is how i generate my tabs
Dim tp As New TabPage("User Management")
Dim f2 As New fmUserManagement
f2.TopLevel = False ' REQUIRED
[Code]....
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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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Jul 26, 2010
I have a form where I have to use control arrays to create a multiple input form i.e. rather than processing one transaction at a time up to 16 transactions must be processed. The following really havent given me much problems at this moment labels and textboxes. I use a for construct to create all the controls including a combobox. This is where my question comes in this form combobox has to be linked to a table in a database. But furthermore and this is where it gets complicated for me anyway each seperate combobox must move independly if i select row 5 in the table in combobox 4 combobox 5 which is havent touched should still be on row 1. How do I accomplish this. I'm using a webservice. I have tried passing a loaded dataset . The code that loaded the dataset is as follows
Dim DSInfo As New Project1.localhost4.AccInfo
DSInfo.Credentials = System.Net.CredentialCache.DefaultCredentials
InformationData.Merge(DSInfo.GetBusinessJournals)
[Code].....
this code doesnt however provide a link to the table equallly creating a dataset in the combobox method ,loading it and then setting it as datasource also provides no link. I know i'm missing something.
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Feb 17, 2011
I'm developing an application to allow engineers to conduct simple single table/view queries against our databases by selecting Database, Table, Fields.
I get how to use the Dynamic LINQ Library Sample to provide for dynamically selecting the Select, Where and Order by Clauses at runtime but I'm at an impass on how to allot for table choice.
Is there a way to provide for dynamically selecting the "from" table at run time
EDIT
So Both of the answers seem to be saying the same general Idea. I'm going to try to convert the C# into VB and get it to work.
The first answer converts to
NotInheritable Class DataContextExtensions
Private Sub New()
End Sub
[Code].....
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Nov 19, 2009
I guess thats what I need to do, Im trying to allow the user to right click on the top of my form, and my custom Context Menu Strip is displayed, not windows context menu strip. I guess somehow i would need to get the size and draw a rectangle on the non client area and see if the user has right clicked in that rectangle? if so how would I get the area of the non client area?
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Nov 1, 2010
In previous versions of VB, you could drag or move the form to a convenient spot on the IDE. With 2010 express, the form is in the upper left hand corner and will not move. The toolbox essentially hides it.I have not been able to find a setting that changes this condition.
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Feb 8, 2010
I've got a small problem that is nagging at me right now. I'm implementing a DataGridView to DataGridView drag and drop opperation. Here is the line that starts the Drag and Drop opperation:
dgvSource.DoDragDrop(New DataObject(dgvSource.SelectedRows.GetType.ToString, _
dgvSource.SelectedRows))
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Aug 21, 2009
I cannot get the dragdrop event to fire when I drag a file from one tabpage to another tab page in the same tabcontrol. I can drag a file from my application and drop into windows explorer and and then drag from windows explorer into my app. That all works fine. And when I drag from one tabpage up to the top of the control, my program uses the tabcontrols dragover event to swap tabs....works fine also. ...Drag drop event fires...no problems
Say I have a list box with files on one tabpage, a list box with files from a different directory on another tabpage, I want to be able to drag the file over and drop it into the other listbox.I have done lots of testing on the variables in the dragdrop handlers to see if they are recognizing the switch in controls and they are. But the dragdrop event will not fire.
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Jul 16, 2009
the user has the option of dragging several pictureboxes around the form. when he lets go of the mouse, the picturebox will take on a new position on the form.
i would like to implement the following:
on mouseup, if the picturebox position is within some amount maybe 50 or 100 (i dont know what units VB.net) uses, i would like it to be dropped exactly in a defined position. sort of like if you play checkers on yahoo games, you dont have to place the piece exactly on the square only approximately.
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Jan 27, 2011
Been a while since i've bothered you gentlemen with my questions, but im back! So, I want to know, how I would be able to drag a picturebox around a form, liek a drag and drop functionality, but I dont want to move folders. Just move it around the form.
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Sep 12, 2009
Dim fnt As New Font("Verdana", 16)
Protected Overrides Sub OnPaint(ByVal pe As PaintEventArgs)
Dim g As Graphics = pe.Graphics
[code].....
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Jun 22, 2009
Right now I have checkboxes on my form, and depending on what check box I check, the value of it gets put into a text box. So if I check "Right Eye", the texb ox below it gets "Right Eye" placed there.
I would like to do away with the check boxes and instead have a new form pop up with a list of words that gets populated from a table. Is it possible to be able to drag and drop these words into a text box? I guess I could use a List Box control for that but I'm unsure how to implement drag and drop. Maybe be able to multi-select words and then drag them all to a certain text box.
I'd like to have give the user the option of adding and deleting words from that form as they see fit, so could I just let VS do that for me by dragging the datasource onto the form and have it create a bindingnavigator or should I do it myself?
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Dec 1, 2011
I can add a link to my toolbar by dragging the shortcut onto it, and Process.Start(lnk) runs it so far so easy, and i end up with e.g. lnk = "C:Documents and Settings....XXX.lnk"
how to extract the Icon assosciated with the shortcut lnk
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Sep 20, 2009
I'm working on a little program that uses a ListView box. I'd like to know if you can arrange the list by dragging the items within the ListView box. Example: I'd like to be able to just drag the bottom item to the top, or the middle item to the bottom, and so on. I guess I'm just wondering if I can move items around using the mouse by dragging them around within the ListView box.
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Oct 30, 2011
After maximizing a form, if I drag the title bar, the form moves out of position. This seems to be normal in windows, since IE does it also, but can I disable this? so the form stays fixed and unmovable?
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Apr 29, 2012
I'm having trouble dragging a record from a linked file. The structures for the three files
Customer File:
First Name
Last Name
Address etc
[Code]...
how do i then display all the records in the booking file, in a listbox - but to also populate the relevant details from the other files. Example: after displaying the Customer ID in the booking file, to get the first name and last name from the customer file.
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Apr 1, 2009
if i add a panel1 how would i drag the form about by dragging the panel i have this code from VB6 and i have tried upgrading it in visual basic 2008 (that never seems to work :|)
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