How To Check If PictureBox Is Completely Loaded
Apr 9, 2010
I have a form which contains a tab control with three tabs on it. On a second tab there is a PictureBox. The problem is I can't figure out how to check if the PictureBox is completely loaded.I can't put "pictureBox.CreateGraphics.DrawRectangle(Pens.Aqua, 100, 100, 100, 100)" into a form load event because picturebox is not active until I click on the tab2. It neither works with tab2.enter event nor any other events I have tried so far. However it works through the button.click event and it works briefly with the picturebox.paint event before its wiped out. So I presume it will work with a timer event as well.But the question is how to to make it work without a button or a timer?
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Dec 2, 2010
recently i came across a requirement. I have to create a text box with a vertical scroll bar. I hav to check whether the scroll bar is dragged down completely or not. i hav to do it in VB.net
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Apr 17, 2009
I am working in Visual Studio 2003.I am automating one web site. I used an internet explorer object to open that site. Its working fine.
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Jul 18, 2010
I have a WebBrowser Control in my VB.NET application. Now the it browses through many URLs (may be 10 - 20) and I want that each of the page HTML saved in text file. Now the thing is that when I write the HTML of page in file, it does not write the HTML of current page rather than the initial one because it calls the event before even the page is loaded.
How can I wait until the page is completely loaded before calling any event?
I tried the following code but it doesn't works.
Do Until WebBrowser1.ReadyState = WebBrowserReadyState.Complete
Application.DoEvents()
Loop
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Mar 13, 2010
I need to make a condition such that my program waits until the webpage is completely loaded before executing my provided commands.
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Feb 13, 2011
I have a multiline textbox which is loading from a .dat file. However, despite telling it to load all of the .dat file, it misses off the end. I it copies the first large body of text and a load of spaces that are inbetween the first and second body, but doesn't load the second body of text. Here is the code I'm using to open my file:
RichTextBox2.Text = IO.File.ReadAllText("00061530.dat")
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Jan 18, 2012
I tried to use the codes below to retrieve Image Width programmatically, but it did not work. [code]...
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Jun 28, 2009
I have a picture box and 10 images I want to load randomly. I cannot use imagelist because these images have a width of 400 and imagelist limits the width to 256. I have added these images to my.resources.The thing is I cannot figure out how can I randomly load each of these pictures to this picturebox
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Jun 28, 2009
I have one little dillema: I have a picture box and 10 images I want to load randomly. I cannot use imagelist because these images have a width of 400 and imagelist limits the width to 256. I have added these images to my.resources. The thing is I cannot figure out how can I randomly load each of these pictures to this picturebox
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May 31, 2009
Using the webbrowser control and conditional logic, how would I check to see if a specific site has been loaded?
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Aug 3, 2010
Is there a way to check if a form has been loaded yet? I saw in C# they have a isLoaded property, but it doesn't seem to exist in the VB.Net Form class?
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May 1, 2011
Using VB.Net, how would I go about checking if a loaded page in a Web Browser object contains a certain line of text? Sorry if theres an obvious answer for this, I'm used to programming in Java.
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Dec 2, 2009
How do you check to see if a form is already loaded, ie if it is already loaded bring to the front else load the form.
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Mar 29, 2010
Is there a way to see if a particular frame within the webbrowser control is finished loading? I know the functions webbrowser1.isbusyandebbrowser1.readystate=readystate_complete work for the main window, but it does not work when a frame is loading. It simply keeps saying the page is done loading. The event webbrowser1_documentcompleted sort of works, it registers when my frame has loaded, but it also registers when all the other frames are loaded. Is there a way to just check on the status of one particular frame.
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Jan 17, 2010
Is there a way to check specific pixels in a picturebox to check the color? Basically what I have is a black square with some white dots, and I want to find the position's in the picture of the white dots.
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May 31, 2011
I am making this program that has a loop that goes to a website and fills in a form within the loop. But first, here is my code thus far
Dim message As String = TextBox3.Text
Dim loopnumber As Integer = TextBox4.Text 'makes the necessary variables
Dim browser As New WebBrowser
Dim url As String
[Code] .....
But what happens is that the loop runs a few times then it errors on the setattribute line (line 19 above) with
NullRefrenceException was unhandled
And I have a feeling that it is not loading the page fully before it tries to fill in the form.
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May 19, 2009
I have a Parent form that loads a child form and I only want to allow one instance of the child form. I have this on the button to open the form. Stepping through the code with the debugger it "appears" to work OK when the form is open (I say appears because nothing changes) but when the form is closed it doesn't open as I would expect. What am I missing?
[Code]....
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Feb 12, 2012
I have a PictureBox on a VB form which I need to check in code to see if it does not contain an image.
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Apr 16, 2009
I'm using VB.NET forms app and I need to check if a PictureBox currently has an image in it. How would I do this?
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Mar 27, 2012
As the title says i am wondering if it is possible to detect and object lets say a radio button is on a picture box
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Oct 27, 2009
I need to check if a picturebox has an image in particular, to check an if condition. I allready try:
if picturebox1.image.equals(path) then
Do Something
else
[Code]....
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Jan 24, 2010
I am making a dice game, and just wondered why this doesn't work:'If dcpic1.ImageLocation = "D:Documents and SettingsAdministratorDesktopVBYaktzis in progressDicesone.gif" Then'
how else can I check the location of an image ?[code]...
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Jul 14, 2010
How to check the picturebox have image or not ?
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Dec 23, 2010
I use the following code to check the background image of two picturebox but it not work.
name of 1st picturebox is :cell1
name of 2nd picturebox is:cell2
code :
If (cell1.BackgroundImage Is cell2.BackgroundImage) Then
'Do somethings
Else[code].....
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Oct 28, 2010
how to check if a picturebox is inside a form?
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Apr 26, 2012
I am trying to check if an image has been changed from a picturebox in a if statement. If I cant check if a image has been changed then can I check if a picturebox been clicked.
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Sep 24, 2011
Let's say I have a PictureBox with an image of a house, for example, and I want to know if the user clicked on the roof, the door, the window, or the walls.
Is there some way to, maybe, set up an If statement so that it checks what the coordinates of the mouse click was and compares it to a set of pre-determined graphed points to decide what object was clicked?[code]....
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Jan 16, 2010
I have an image box full of images , im using a code to select a random image from the imagelist and display it in a picturebox.
My problem now is how can i check what image is in the picturebox and then have it do something else.
[code]...
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Dec 14, 2011
I have two rich text boxes, and two buttons on my screen. The first button grabs HTML from a URL and then converts the HTML to XML which resides in rich text box 1.
The second button is to grab the XML from the rich text box1 and then parse it to grab all the input elements by their ID.
My issue is that my parser isn't doing anything. My guess is that I'm not quite getting the XML from the first rich text box.
What would be the best way to grab the XML from a rich text box load it into memory and then parse the XML to grab all the ID tags?
Here is my code --
Imports mshtml
Imports System.Text
Imports System.Net
[Code].....
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Dec 15, 2011
I have two rich text boxes, and two buttons on my screen. The first button grabs HTML from a URL and then converts the HTML to XML which resides in rich text box 1. The second button is to grab the XML from the rich text box1 and then parse it to grab all the input elements by their ID.
My issue is that my parser isn't doing anything. My guess is that I'm not quite getting the XML from the first rich text box.What would be the best way to grab the XML from a rich text box load it into memory and then parse the XML to grab all the ID tags?
[Code]...
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