I am struggling with something that might be very basic... I don't know how to find an IP in the background using BackgroundWorker and then updating a label on an active form with the IP.
So it is like this:User opens the form The label is now saying: "Finding IP." It keeps saying that untill the BackgroundWorker found the IP and then it updates the label with the IP.
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I am new to LINQ to SQL and I try to Edit and Add a New item on a Windows Form in VB.Net, the form freezes? By example, when I try to select a value from a combobox the prompt get stuck (it enters in Enter event) and it cannot exit, then the form froze.
View 3 RepliesMy mate & Myself are currently building a IRC Client, a problem we have come across is when opening a chatroom the form Freezes for example.We are currently using arrays so we can open multiple chat rooms and at this current time to open a chat room we use.[code]Using the above code, the form does not freeze but appears we can not access any of the controls such as (RTB)What would be causing the form to freeze on .show(),
View 4 RepliesBackground of form: black
background of char, bombs and shrooms: transparent
picbox behind char, bombs and shrooms is regular (marioland)
How can i fix it so the transparent parts dont see form as background but marioland as background?
am developing a basic "stock tracking system" in VB.Net with an Access Database for my final year project, and I am in need of help with some issues that I am still facing.System:The user basically selects a customer, selects the product, batch number, quantity, and date that the customer has chosen, and gives a summary of the transaction.I am then generating a summary report via the report wizard tool to show stock levels, and info on which customers bought what product.My Database contains 3 tables: Customer, Product, TransactionI can currently write to both the customer and product tables, bit i havnt figured out how to save a transaction record yet?, also, I am saving to the product table from a "Deliveries Form" that I have for entering incoming products. But I have not yet figureed out how to subtract the quantity values in the product table from the "Purchasing Form"? This is a major issue)en the user selects a customer from the dropdown box, that customers details is displayed in a label on the next form for the users benefit. This works when I hard-code the customer ID to be 2 for example, but it doesnt seem to recognise the "gCustomerID" (I have gCustomerID declared Global Variables module file)I think that this is the problem?
View 2 RepliesI was looking for a solution to run a lengthy job (looking for files on the fixed drives) withouth freezing the UI, and saw that using a BackGroundWorker control is the recommended solution.
Problem is, I don't see its ProgressChange event being triggered:
Imports System.IO Imports System.Text.RegularExpressions
Public Class Form1 Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Button1.Enabled = False
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i have a table layout panel with a background image. in the table there is some panels with transparent back colours. the image shows up in vb designer but when i execute it, it is invisible.
View 6 RepliesDim datatable_default_view As DataTable = _datatable.DefaultView.ToTable
Dim servicenumber As String = datatable_default_view.Rows.Item(e.RowIndex)("Service Number").ToString
'gets the service number of the selected row[code]....
I've put this code under the DatagridView_CellEndEdit event
The Problem: The 'data_row edited' variable doesn't get initialized when exiting the cell in edit mode using the keyboard (ie: pressing the down/up arrow).If I use the mouse it works as expected. Why is this ?
I am making a small game of pong and i want to incorporate a pause feature. is there a way i could freeze the form in place and then unfreeze it later at the push of a button. the tutorial i used is below so check it out to get an idea of what i've made so far.
View 2 RepliesI've been trying to use "System.Threading.Thread.Sleep(15)" as the delay code but if freeze the form. I used this "Location.Refresh()" where location is the name of the form, but it didn't give me what I need. This code is going to work on a ProgressBar while typing and the value of the progress bar change while typing. The progress bar jumps to the new value and I want it to move. So I thought about puting it in a "For ... Loop" but the whole form freezes.
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I am developing a application where I have 1 parent from (windowstate of Parent from is set to Maximized) and 2 child forms. In my Parent form I have a menustrip with following code to activate child -
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I'm using loop to read data from sql and then make some calculations then save it again to another table but when application loop for 3 or 4 times it's freeze but the job is done but if loop = 10 or more then it is freeze and hangup for long time .i need to learn how to make my application working better and never freeze and make application working with any count for loop without freeze .
View 7 RepliesThe form is an About Us form so has nothing on it only a text box and a OK button.
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Why won't the button close the form? I'm puzzled, I tried another button just in case with the same result. UPDATE: I set a break point on Me.Close() and it isn't reaching it when I click the button, I created a new button and the same thing happened.
I want to have this effect on my windows form.When the user clicks a thumbnail I want it to show like this (fade in slow motion effect) and also dim the parent form.This page doesn't dim the background parent form.
View 4 RepliesI am working on a project in VB.net 2008. I have a problem arising while opening a form as modal from a modeless form. I have attached a project to demonstrate the problem. This demonstration contains three forms with following characteristics. [code]...
View 3 RepliesHow do I let the function in a form run in the background without slowing down/stopping my entire application until it has finished?
View 7 RepliesI have a form that its backcolor and transparentyKey are same.So,it be transparent.But when i use another color than "Control" my form is transparent but not real transparent.The transparent area of form is like untransparent area of form (They are parts of window)!
View 13 RepliesIs it possible to make the background of a windows form application look like the matrix movie falling characters in VB.net?I have a code for C# console application. I tried so hard but I failed to convert it and make it work on VB form.
View 11 Replieshow can I make my Form background color transparent?just the form those object/text are not included.
I watched this in yout*** like a month ago, i keep on searching but i cannot find.if you want to be happy, find something you love to do and do it for free, then find someone to pay you for it.
I have a 18kb 1024 x768 jpeg image that is set as background image of my form. The problem is the form now lags like crazy. How can I eliminate the lag?
View 1 Repliesi was trying to call form2 from form1's background worker's DoWork event . The problem is that when the event runs , form2 gets loaded but it shows not responding.i am also passing a value to form2 at run time which the background worker calculates?
View 9 RepliesI want to Change BackgroundImage In MDIFORM in VB.Net and Set Picture.
View 1 RepliesI have a form with a tab control on it. I would like to be able to rotate backgrounds, from the code.I'd especially like to be able to change just one tab on the tab control. I know how to do this in the IDE, of course.)
View 3 Repliesi would like to change the background color of the form when giving the color name in the textbox and enter it.
View 2 RepliesHow do I change the Background Image of a form ? not with the properties I know how to do it from there I guess . but I want to change it with coding .How do I do that ?
edit : and another thing when I try to add an image to a image box it shows me the image error image. you know when it can't load the image. it actually showed it for 1 second and then it disappear .here is the code for the Image box
ptbplayer.ImageLocation = CurDir() & "Images/player.jpg"
I used a custom form in visual studio. I had set the parent form for mdicontainer as true. When I try to load the childform and the code is form2.show then my design for a custom form image is working but when I add the code:
form2.show form2.mdiparent = mdiparent it won't.
I had set the transparency as = red
backgroundcolor = red
formstyle = none
backgroundimagestyle = none
Everything works fine using a .gif image custom form image but when I put a code "mdiparent" it won't. It is important to put "form2.mdiparent=mdiparent" so that when I clicked the background image which is the "form1" or the parent form the form2 will not go to the back page of form1. It is possible to disable the click event of form1 so that when I clicked it the form2 will not go to its back.
Okay so I'm making an on screen keyboard, and was wondering - when I click something in the background, my form stays on top, how can this be accomplished? Can someone point me in the right direction?
View 5 RepliesI am trying to create a simply bouncy ball application in VB net; I am using a timer and the FillEllipse() method to try ad create a new circle at every tick of the timer.
Code:
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
Dim Gr As Graphics = Me.CreateGraphics
Gr.FillEllipse(Brushes.Teal, X, Y, W, H)
CollisionDetect()
X = X + X_Dir
Y = Y + Y_Dir
Gr.Dispose()
End Sub
The result? The form continously draws onto itself, without clearing the last circle. This means that you end up with a 'line' of spheres together.
To clarify:
X is well, the X-Coords
Y is Y- Y-Coords
X_Dir is an integer, it is added to every iteration of the loop so the next time the loop iterates, it'll be at a different location;
Y_Dir is the same but for the Y Coords;
CollisionDetect() Is empty. It is yet to be filled, it will handle the collision with the sides of the forms. W, H are width and height, respectively.
I would like to have two different colors that transition into each other.
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