I'm trying to follow a tutorial but I keep getting the warning:
Name 'AdobeReader' is not declared
Can sombody tell me what is wrong? The tutorial is found here, and I'm trying out Answer 2 from that page, which says:
Here is another way to read pdfs.
Right click on any of the tabs in your toolbox and click choose
items.(Just make sure you have a version of adobe reader installed
before starting.) When the dialog box pops up click the 'com
components' tab then pick tha 'adobe pdf reader' com component. Click
ok and you should now see a 'adobe pdf reader' control in your
toolbox. Click this and drag it to your vb form.(you may need to
resize it, usually appears very small). Now in order to read any pdf
just alter the 'src' property of the control either in code or in the
designer. when you run the program you should be able to view the pdf
doc in the vb form with most of the options you get in adobe reader.
Here is how you would alter the 'src' property in code.
PrivateSub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) HandlesMyBase.Load
AdobeReader.src = "C:\mydoc.pdf"
End Sub
If I´m getting your Question right, you just want to open a PDF-File.
Simply call:
Process.Start("Path/To/MyPdfFile.pdf")
Related
I was going to build my project when i noticed i didn't put an icon,
and since i couldn't access the icon value of the original form because i used a theme i C+X the container and access it from the grey form, change it, C+V the container, built the project.
Nothing changed, all the name of the buttons and stuff are the same, but i feel like nothing is connected to the code anymore, i don't know what happened, i just recently got re-interested into coding, and i have no idea what to do, i tried some things but nothing worked, so here i am, desperate (i spent 3 days on this, i'm REALLY starting from bottom)
link to the project: http://www.mediafire.com/file/2zrbe32lzpx2qhz/SchedulerProjectVBNET.rar
Thanks in advance
It sounds like you have lost all the Handles clauses off your event handlers. As an example, if you add a Button to your form and double-click it, you will get a Click event handler like this:
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
Note the Handles clause at the end, which is what connects the code to the event of the control. If you cut that Button from your form to the Clipboard then it no longer exists as part of the form, so that Handles clause will be automatically removed. If you paste the Button back onto the form, the Handles clause is not restored, so the method no longer handles the event.
If that's what has happened - which you can easily check just by looking at the code - then you need to restore all those Handles clauses. You can do that manually, i.e. write them all yourself in the code window, or you can have the designer regenerate them for you. To do the latter, select a control in the designer, open the Properties window, click the Events button, select the desired event and then select the appropriate method from the drop-down list.
Note that you can also double-click an event there to generate a new event handler, which can be useful for handling events other than the default event. You can generate a handler for the default event simply by double-clicking the control.
I made a nice program while learning and everything was going good until I did something, but I forgot what I did. Now the buttons won't click but they all have the functions.
I know it's something in the properties but I forgot what it was.
vb.net express 2013
Without code provided, we can't really help that much. But what you can do is create another button, then copy whatever the code of your old button was, and paste it to your new button created.
In Visual Studio when you cut and paste any Control instead of simply drag it in a new position it will lost every event handler already added.
In your case simply add Handles clause to your YourButtonName_Click sub:
Private Sub YourButtonName_Click(sender As System.Object, e As System.EventArgs) Handles YourButtonName.Click
I have seen tutorials on how to open pdf files into the windows form, but they show how to open it by creating a button that will find it from the directory.
I want the pdf file to be displayed already, as soon as the user loads that Window form.
I have installed the Adobe pdf reader in the component toolbox, and
put the following code with the load function of the form:
Public Class Adding_Worksheet
Private Sub Adding_Worksheet_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
Call AxAcroPDF1.LoadFile(0, "D:\Mixed_Addition_1.pdf")
End Sub
End Class
I have adapted this from when I added an swf file, which had no problems in loading. I know the zero is incorrect above, but i am not sure what to write there. the additional code i had for the swf file was AxShockwaveFlash1.Play(). would i need to do something like AxAcroPDF1.Load()?
If all you want to do is display a PDF and nothing else, why not use a System.Windows.Forms.WebBrowser control, and make the URL "D:\Mixed_Addition_1.pdf" ?
Maybe he didn't want to use a web browser to open a PDF file, Right click item in toolbox, when designer is active, select choose items, select COM components and select Adobe. then add code to new form. Printer will be active, you can disable "Toolbar" in properties tab
Imports AxAcroPDFLib
Imports AcroPDFLib
Public Class TripSheet
'
'AxAcroPDF1
'
Public Sub New()
' This call is required by the designer.
InitializeComponent()
AxAcroPDF1.Location.Equals(AxAcroPDF1.LoadFile("C:\path\file.pdf"))
AxAcroPDF1.LoadFile("C:\path\file.pdf")
' Add any initialization after the InitializeComponent() call.
End Sub
I am using the following code to open up a pdf
WebBrowser1.Navigate("file://C:\test.pdf")
However instead of opening up in the browser it just keeps on launching adobe acrobat reader and opening the PDF in that, leaving the webbrowser1 untouched.
This is not what I want; I want my PDF to open up in my web browser
What am I possibly doing wrong?
I just solved this. What you need to do is drag your pdf document to your solution explorer and then open it from there.
Private Sub Form1_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
WebBrowser1.Navigate("c:\users\Fake.Name\documents\visual studio 2010\Projects\SO\SO\test.pdf")
End Sub
I am working on solution 'SO', so I put the pdf into the solution and dragged the pdf to my code where it generated its location.
Also, take a look at this
Hope this helps
The problem with your code is the "file" statment.
Try this
WebBrowser1.Navigate("C:\test.pdf")
And you'll see the file opened into your webbrowser control.
In project properties check "Prefer 32-bit". Of course, that might bring on other problems (as in my case), so it's not a perfect solution.
Please allow me to explain what I have and what I am trying to achieve.
I have a textbox (called txtb1) and a button under it (called btn_browse) on a winform in a vb.net project.
When the user clicks the button a folder browser dialog appears. The user selects his desired folder and when he/she clicks 'ok' the dialog closes and the path of the folder selected appears in the textbox. I also want to store that value in a variable to be used somewhere else(the value will be copied to an xml file when the user clicks 'apply' on the form, but this has no effect nor is related to my problem).
To achieve that I have the following code:
Public myVar As String
Private Sub btn_browse_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btn_browse.Click
Dim f As New FolderBrowserDialog
If f.ShowDialog() = DialogResult.OK Then
txtb1.Text = f.SelectedPath
End If
myVar = txtb1.text
f.Dispose()
End Sub
This part works with no problems.
Now, what if the user either:
1- decides to enter the path manually rather than use the browse button. or,
2- after using the browse button and selecting the folder they decide to manually change the location
In trying to solve this I added a textchanged event to the textbox as follows:
Private Sub txtb1_TextChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles txtb1.TextChanged
myVar = txtb1.Text
End Sub
However, this is not working. Apparently, and I don't know if this is relevant, when the user selects the desired folder using the browse button the textchanged event is also triggered. and when I click on the textbox (to give it focus) and press any keyboard key the application simply stops responding.
So my questions are: am I going about this the right way? if my logic is flawed, could someone point me to how usually such a thing could be achieved? is it possible to limit the triggering events to only keyboard input as a way around this? I tried the keydown and keypress events but I am getting the freeze.
Set the TextBox.ReadOnly property to true and then set the backcolor to white and forecolor to black to look like a normal textbox but they can't edit it.
Then you have no need to worry about handling any events from the textbox like u are doing.
I think your solution is pretty simple. Just treat the textbox as a File upload control in web forms. Make it readonly. Don't let the users to edit the text. This solves two problems:
The user will always a select a folder using a known mechanism (clicking on button and seleting folder)
No need to use any variable since you can always get the location from the textbox.
HTH
Why do you need to store this value in an additional variable? So long as the textbox is visible to the user, it contains the definitive value and could be accessed directly. So, in this case you would have clicking the "Apply" button read the value from the text box instead of the variable, thus avoiding this problem with events altogether.