I am currently working on a document manager type application in vb 2008.
I want to be able to open and preview different file types in the app in addition to being able to open them with their associated programs.
Is it possible to create a universal file opener that will open and display any file type (and if so how do I do it) or do I have to write a separate file opener for each different file type I wish to support?
I have a class with a Property called 'Value' which is of type Object.Value can be of any type, a structure, a class, an array, IList etc.My problem is with the setter and determining whether the value has changed or not.This is simple enough for value types, but reference types and lists present a problem.For a class, would you assume that the Equals method has been implemented correctly, or just assume that the value has changed every time the setter is called?If I did assume it's changed, then perhaps I should assume it for value types as well, so that the behaviour is consistent.
View 2 RepliesI always saw there are files which like frmXXX.vb and frmXXX.resx etc.What types of these file and how to create them?
View 6 RepliesHow to retrieve file icons associated with the file types and add them with the items of Listview in vb.net
i read about SHGetFileInfo but i didnt understand anything from that
how to loop through a zip file and return all the file extensions in the zipped file.
View 2 RepliesI have gotten my application to open with an associated file type, but now I'm trying to figure out how to associate the file types to the app. I associated them on my PC manually by right clicking on a file and selecting "Open With.." and check-marking "Always use this application to open this file type".What I want to do, is have my program make itself the default application for a file type with the press of a button.If it makes it easier, I'm writing a text editor and want to give the users the option of making it the default text editor for .txt &/or .rtf files.
View 1 RepliesWhy would a .sln solution file open and appear empty in Microsoft Visual Basic 2010 Express - i.e. no windows showing projects and code files etc.When I inspect the file in a text editor, it contains references to vbproj files (which are present) which indicate that it should not appear as empty.No error messages are reported when the file is opened.
View 2 RepliesI would like to open the excel file after create the excel file. The creating file function is done, but the system unable to open the excel file. My coding as below:
Dim xlApp As Excel.Application
Dim xlWorkBook As Excel.Workbook
Dim misValue As Object = System.Reflection.Missing.Value
[code]....
how to use open file dialogs to open a file to a text box?
View 6 RepliesAssociate .hwm File Types With Program?
View 3 Replieshow I could remove certain file extensions or file types from a populated listbox?I have listbox1 and I want to remove .rar files,.zip files and .txt files.How could I do so in one easy step?
View 7 RepliesI am not sure I am doing this correctly,I want to get a multiple number of file types (gif, jpg, png, etc.) and store them in one variable so I can access all the files in that var. I read that GetFiles doesn't allow for multiple patters, so how do I do this so I can have more than one file type in a variable?
Dim aryFiGif As FileInfo() = di.GetFiles("*.gif")
Dim aryFiJpg As FileInfo() = di.GetFiles("*.jpg")
Dim aryFiPng As FileInfo() = di.GetFiles("*.png")
Is there a way to check if certain file extensions exist within a directory?
View 2 Repliesattaching filesI am using VB2005 and MS access as a database.I have created a project where a user can add a new record and sometimes with adding the new record you also need to add backup, example a picture,excel, word, txt,pdf.I need to know how to do this?It can be save either on a folder on a local drive or database.I would like to be able to select a file and save it, and if
View 2 RepliesI am trying to add mime types to a godaddy hosting account that uses IIS7.0. Every time I add the mime types, though, it crashes my web site. Here is the config file without the connection strings to the DB:
<?xml version="1.0"?>
<configuration>
<configSections>
[code]....
I've noticed that when you click on a web page in Windows Explorer, or open a file in general, and the default application to open it is internet explorer, ie opens and opens the file. However, when I tried this on my Web Browser it opened, but ignored the file and went on its usual routine. How can I get my Web Browser to open and open the file that was clicked on in explorer?
View 1 RepliesI saved a file with the extension .doc. I use the RichText to write and save the text. I did not set any encoding type when I saved it. When I tried to open the file in the Richtextbox again, I got all the formatting characters in the RTF file. How do I correct this? How do I open and re-open a .doc file in the Rich Text box control without the formatting showing up in the box with the document contents?
View 4 Repliesim having a slight problem with my open file dialogue box, i need to be able to open the dialgue box, and click the file and open in my pdf reader, or at least load it to my other form ive created. what ive go so far:
[Code]....
I have a web browser I'm using in my VB.net form to which I drag *.CTB files. At present I can drag any file type into the browser can I limit this to CTB file extensions only and if the user ties to drag in any other extension that a message box appears quoting that the file must be ctb extension?
View 1 RepliesI have a question (suppose to be simple). The question related to reading text file which is in the below format.
[Code]....
What I want here is to store the first data column in the file to be stored in AreasString and 2nd column in Level, 3rd in Importance and so on untill the end of the data. In addition, How can I check the type of data? For example, if I want to say: If 10.25 is double then msgbox ("it is double") else msgbox ("it is integer")
I need to compare two dictionary values if the types stored are equal, this is what i have
if gettype(Args(key)) = gettype(argtypes(key)) then
'' do something
end if
[Code]....
I like to open a file. The open option should be shown in a separate window. My code works fine but the open window is not displaying to open a file. Here is the code:
private void OpenMyFile()
{
string path = GetPath() + ViewState["fileopen"];
[Code]....
I'm writing a program that saves 'map' files to the HD so that I can open them later and display the same data. My maps originally saved only one data type, a set of my own custom objects with the properties: id, layer, x, and y. [code]...
View 2 RepliesI want to create a sort of slide show program. I want to get a folder full of images (bmp and jpeg file types) and have this program display it really quickly and then refresh to show another randome image really quickly. Then I want it to look into another folder and grab an image file from there that will be the last image and stays up. What I want to know is how will i go about getting the program to get the random image and then how will I get it to refresh instantly?
View 2 RepliesI am trying out the windows media player control within the VB design view, and I tried to add an .avi file to it. When played however it does not show the video, and plays the sound with the visualiser effects instead.
View 11 Repliesit's possible with vb.net code to show or hide extensions for known file types ? this is a folder option for the new windows 7, wich allow the user to show or hide extensions for files.
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'File' is ambiguous, imported from the namespaces or types 'System.IO, WindowsApplication1.Online.Suite'. whereas Online.Suite is a web reference
View 5 RepliesI'm trying to create a program where I open a file using a open file dialog and take the information from a text file and output them into various listboxes and textboxes
The first problem I had encountered was at :
With CurrentCustomer
.EmployeeID = ToInt32(Fields(0))
.Name = Fields(1)
[Code].....
Using VB to open a .csv file with "excel.workbooks.open", editing it, then saving as .csv.
Even though it is saved as .csv, it is still identified as .xls.
Is there an alternate way to open this .csv file so that when it is saved as .csv the excel application actually identifies it as a comma delimited, not a spreadsheet?
I am trying to use the open file dialog box in VB 2005 to open up an existing txt, or rtf file from a directory into a rich text box. I am able to get the Open file dialog to appear and the directories, but when I try to open the file it doesnt import it into the text box. Here is the code I am using
[Code]...