Dynamic Area For Db Tables In Form?
Aug 29, 2010
I use Visual Basic 2010 Express. I want to create a WinForm app in which there are several buttons "table1", "table2"... Each button must display the corresponding table of a database in a specified region of the same form.
I'm able to link a MS Access database (.accdb) file to the app. But, how do I create that dynamic area whose content would be one of the database tables of the linked database? I tried using DataGridView, but I'm a newbie and I'm missing something; it doesn't work.
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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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Jan 13, 2011
How can I use dynamic fields in LINQ in the PART OF THE where query? I mean that I want to write where x = *dynamic fields* I want to do the select query in all of the tables that are in the dataset, not on one datatable.
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Apr 23, 2010
I have Joined two tables into a datagridview and i want users to be able to update the table values but i have this error,which is the title of this thread.Is there any alternatives of updating a joined table in datagrid view? here are my codes
Private Sub Search_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
con.Close()
Dim cmd1 As OleDbCommand = New OleDbCommand("SELECT LECT_NAME,LECT_ADDRESS,LECT_CONTACT,SUB_SEMESTER,SUB_ID,SUB_NAME FROM
[code]....
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Apr 20, 2012
i need to create sql tables based on user needs lets say a guy needs a table of 4 rows 5 columns other user needs 3 rows 3 columns each with different types so how is the best way for letting them choose like they write in a text box ( this will be the value of rows)4 and another text bvox the count of columns and i have those 2( rows and columns needed) numbers i create the table as is.based on those. by default i create type as varchar max then later on we must fill the table using datagrid.
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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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Dec 16, 2011
Please anybody help about how to create two dynamic combo box. Like Country and province.. when I select country conutry Combo box then Province Combo box automatically show same country province.[code]
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Feb 19, 2010
Ive managed to dynamically create a form, and dynamically create a timer, but i have not been able to create the timer on the dynamic form. Specifically, i need to be able to have the timer itself create another form with a timer. (I realize that this would create a new form every interval on the timer, that is what i want to do)
1. A way to add the timer to the dynamic form, and maintain the timer sub on my main form.
2. A way to create the whole thing over (dynamic form and timer) through the previous dynamic form and timer.
I was thinking i could use a collection/array to store the forms and timers, but i'm still having trouble figuring out how to add entire forms or timers into a list. (A timer is not considered a control, so i cant use a controlcollection...)
Heres my code;
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim frm As New Form
[Code]....
*EDIT* Btw, my idea was to use i as a variable that increases every time a form is created, then insert the form into the array, with i as the integer. i just need to know how to create a new form with a different name each time. (as with timers)
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Aug 2, 2010
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Form2.PictureBox1.Load(bm2)
[CODE]...
So I'm trying to take a screen capture of the windows form and display only a certain specified area of that screen capture in a picturebox on a different form. Kind of like this. First, take the screen capture of the form: Then get a specified area of that form through x,y coordinates or something and display it on a picturebox on a separate form.
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Oct 15, 2009
I have a form that i need to be 100% Dynamic. So it could contain 10 labels maybe 100 who knows.
When you hover over a label there will be a different contextmenustrip to appear for each and every label. So all the contextmenustrips are Dynamic and contain 1 option maybe 2 options even 3 or 4 up to the users settings.
My problem is not creating a handler for when the user clicks on the contextmenustrips options. The problem is knowing which one of the options for that contextmenu was clicked!!
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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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Mar 2, 2010
I was about to create a code for capturing screen of the area of a form.. Below code is capturing only the form size but from the top of the screen.. I want to capture the area of screen wherever it placed..
Code:
Dim loBmp As Bitmap = Nothing
'Dim Somebitmap As Bitmap
Dim screenSize As Size = New Size(Me.Bounds.Width, Me.Bounds.Height)
Dim screenGrab As New Bitmap(Me.Bounds.Width, Me.Bounds.Height)
Dim g As Graphics = Graphics.FromImage(screenGrab)
'Dim FiletoDelete
'MsgBox(lsFile)
g.CopyFromScreen(0, 0, 0, 0, screenSize) ("Need Some changes here!!")
screenGrab.Save(LogLib & lsFile)
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May 28, 2011
I am creating an application . in which clients have to enter data and view it and search it by application number and name.i want to add print form in search form in which client when search data of entered users he/she may print that form.i seen some plugins like print form, or print document , but it prints exaclt the form image etc.i donot know how to use them completely. so i wants to ask how can i print that specific area of search form ... the printed form should not be same like in the form. how can i set that this textbox data should be of this size or that lbl or picture should of of that size?
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Mar 29, 2012
How would i check if an object is in a certain area inside a form?
-----------------------
0
----------------------
For example lets say 0 = radiobutton1, inside a forms. What would be the best method to check if the radiobutton lies within this region?
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Aug 27, 2010
if any one knows of a way to determine if a control is currently in the viewable area of the parent form. In example...if I have a form where all controls are visible when the form is maximized, how would I go about determining which controls are no longer visible to the user after they change the window state or form size. To be clear I am not talking about the visible property of a control but rather if the control is actually on screen for the user to see when they do something like resize the main form for instance.
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Jul 31, 2009
Something happened to my project and it got all messed up. I am not sure what happened, but the form I was working on only shows the code and not the project itself(where you design it). I am working in VB2008 Express Edition and do not wish to start over. What happened to my form?
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Dec 18, 2009
I'm using visual basic 2008 and I'm trying to find out how I can move the form in runtime by clicking an area other than my caption/title bar? I've searched everywhere and couldn't find an answer.
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Feb 10, 2009
I have a form with a webbrowser and other things. I want to know how to take a screenshot of just a small area on my form. I searched and only found how to do a screenshot of the entire screen. how can i provide X and Y values of where I want my screenshot?
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Jul 29, 2010
My VB.NET app supports several kinds of MDI child forms. Some kinds, but not others, are 'troublesome' -- they cause the focus mechanism to become weird. Once a 'troublesome' child form has been opened, NONE of the MDI child forms will become activated unless I click on either the title bar or the border. Clicking in the client area does not activate the child form -- its title bar remains gray, and it does not receive Activate or GotFocus events. Strangely, however, the clicked-on form actually DOES receive the focus, because its controls receive mouse and key events. Only the Z-Order and the highlighting do not change.
Once this problem develops, it persists even after the 'troublesome' form is closed, and it affects child forms which are opened afterward. However, if ALL of the child forms are closed, the problem clears up, and new child forms behave normally -- until the next 'troublesome' form appears.
I have no idea why one kind of child form is troublesome, and others are not.
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May 8, 2010
My VB.NET app supports several kinds of MDI child forms. Some kinds, but not others, are 'troublesome' -- they cause the focus mechanism to become weird. Once a 'troublesome' child form has been opened, NONE of the MDI child forms will become activated unless I click on either the title bar or the border. Clicking in the client area does not activate the child form -- its title bar remains gray, and it does not receive Activate or GotFocus events. Strangely, however, the clicked-on form actually DOES receive the focus, because its controls receive mouse and key events. Only the Z-Order and the highlighting do not change.Once this problem develops, it persists even after the 'troublesome' form is closed, and it affects child forms which are opened afterward
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Jun 5, 2011
I have a picture box on a form that changes size as needed. Both by resizing the form and by code.How can I resize the form automatically if I resize the picturebox in code. The client area of the picture box should not be clipped.Right now the picture box is set to dock fill, but if the code resizes it, the form does not follow it. Is there a binding somewhere I can use?
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Dec 13, 2009
make the form size exceed the screen working area? like setting the size to (1600,1600) doesn't work if the screen is not as big as it is.
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Sep 13, 2009
how to create a specific area to drag my form (ie: image, label). I found some code that works, however you can click anywhere and have it drag...
Const WM_NCHITTEST As Integer = &H84
Const HTCLIENT As Integer = &H1
Const HTCAPTION As Integer = &H2
[code]....
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Feb 4, 2011
I had issues in refreshing a form that is bound to different tables in a database. Various forms allow the user to change and add and update information on the form via the database. I had created a public sub in that form that the other forms could call, after saving the data, that was supposed to refresh the data on the main form. This was not working so I researched the problem. I came across this page which pertains to Form.Activated: [url]
I placed all of the table adapter fills into this event, instead of in Form_Load, and it seems to work now, when the form first loads, and when other forms update data. My question is does anyone have experience using this and what are the consequences, if any, in using this to reload/refresh the data showing on the form?
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May 21, 2009
I trying to fade-in the application startup form using the forms opacity and a timer control.I dont know if I am using the right approch to achieve this so suggestions for alternatativ approches are welcome.I have a form with a few randomly select controls on it, one of which is a textbox.When I run the code, the form and all its controls reflect the changes to the form opacity property set through the timer_tick event except the textbox.The textbox remains clear all the time and I would like to know: Why?[code].....
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Apr 7, 2010
I have to write an application that consists of mainly one main form, but several different things I wanna display. Pretty standard I guess. So there is a menu, some controls, and the main stuff below (ranging form graphs, tables, dropdown boxes, print preview, etc). I would like to use it like one would use frames in html, design an object that is limited to a box or panel that I define. The literature I have does not give me a clear idea of how to do this (yet). The most obvious seem to be the use of MDI, open a predefined form with no borders, maximize it before showing and remove all minimize/maximize options. But that does not work so well. The form inside the MDI parent does not fit the size that is given for it when it is loaded. e.g.
[CODE]:......................
So my main question is: Is MDI the way to go here at all or are there better/easyer ways to achieve this? If MDI is the way to go, how do I sucessfully restrict a child form inside another object, without giving the user any opportunity to resize (i noticed that I have minnimize/maximize/close buttons, even if I disable them on the child forms themselves)
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Mar 9, 2010
Hi.. Im using an application to capture selected part of screen by resizing the form and capturing area of it!! now i want to reset the form once my work id done!! i mean if i press a "RESET" button the form should be load as first time it was loaded.(the real form size..)
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Apr 11, 2010
I have a web application and on page is an update page to update some profile information. Below is the code I am using to update the table. But I think it is wrong. Does anything stick out? The connection string works cause it is used to read the database to get the profile information, I just removed it due to it containing password/login info for the db.player is the class of properties that contains player information and ds is the dataset, but I would like to update the database itself online.
[Code]...
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Mar 7, 2010
I have 10 labels named lbl1, lbl2, ... lbl10
I'd like to change their propriety (using a cicle) with the cicle index
for i as integer=1 to 10 step 1
lbl (i) = PROPRETY 'I know this is wrong but it's what I would do...
end for
I'm using a workaround, but I'm looking for a better way..
[Code]...
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Oct 12, 2009
How would you add Dynamic controls to your form, from an array which size may vary depending on how many controls the user has selected and has been retrieved from a database?
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