Useful Links / Information / Resource For .NET
Jan 19, 2009
this is useful links for new .NET developer or any body who is new to .NeT..These link contain most of FAQ of window form url....101 Visual Basic .NET Code Samples provides a large group of well categorized and documented examples of code.This is a very useful resources when it comes to code sharing so, before you post about any subject it's maybe useful if you first take a look at these code samples.
1 Read the posts in this form. You will become familiar with common gotchas, issues, and most importantly how to deal with them. Pay attention to the answerers that have four and five medals - they've answered the most questions and have been around the block a few times.
2 Practice, practice, practice! It might sound cliche, but this is the best way to retain what you expose yourself to. Tip: combine this with number 1.
3 Think about coding before you code. As the adage goes, if you fail to plan then you plan to fail.
4 Search is your friend. As you run into situations that you have no idea how to attack, search the forum. Chances are that in the tens of thousands of threads, someone has already asked and received an answer on your problem.
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Aug 5, 2010
How do i read information from a mysql server and write all info on table name links to a file?
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Sep 12, 2009
I'm just curious as to how some software programs that I see out there have the ability to extract links & text from thousands of web pages at an extremely high and fast rate. Has anyone here, ever created a link or text extracting program the has the ability to parse many webpages and return data into a textbox? I know how to extract links via the webbrowser control, but it doesn't seem to parse/extract data at a very high & fast rate like many email, link & text extracting programs that I see out there.
[Code]...
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Sep 11, 2010
my webbrowser navigates to a webpage. I need to store all the links into a collection, I did find the code to do the job (on this forum) and it works, but there is a problem: there are more links on the page than those the code reads, like when i right click on a picture and choose "copy shortcut" I get a link that is not showing when I display the "view source" for the entire page. I can't figure out how to do it.
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Mar 4, 2010
I need to refer to some strings using an "indirect string" in the registry. It should be in this form:
@filename,resource
MSDN: "If the resource value is zero or greater, the number becomes the index of the string in the binary file. If the number is negative, it becomes a resource ID."How can I find out either of these numbers for my resources that only have names in VB? I also need the ID/index for the exe's icon.
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Feb 5, 2010
I have a resource file that I include in my shared code library that has all of my re-usable classes in it (all the resources go into their own namespace). Now, what is the best practice regarding resources... should I include them in the same DLL, or should I have a seperate resource DLL and/or are there any benefits from seperating them out into their own file.
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Feb 26, 2011
So i created resource file New --> new file --> Native Resource Template Then added icons with custom id, like "x", "u_100", .. so i understand, what the files (in my case icons) is.. And i saved as 32-bit resource file (*.res) So i have a question, how can i use these files inside of resource file in my apps? i know how to add icons in to my app.. Me.Icon = New Icon(C:/icon.ico)
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Jun 9, 2011
The program is currently trying to pull information from three different database tables and compiling the information onto one screen, to do this i am using three different connections and a function to handle the data at each stage. The issue is as my code hits PageLoadStage of "2" and runs the QueryDatabase() Function i am encountering an error of: "OleDB exception unhandled: No value given for one or more of the required parameters." This occurs on line 15 of the first code snippet. Can anyone explain this and/or identify any code issues if that is the cause.
[Code]...
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Feb 2, 2011
I was looking for some stuff online, and i was looking through my reference sheets for vb.net, but it seems in the code i have found, there is declare in methods. Below is an example i am talking about. The thing is, that i dont recognize it and believe that it is an earlier version of Visual Basic ( 6 or earlier) which used it. Should i just keep looking for different code?
Public Declare Function RegOpenKey Lib "advapi32.dll" Alias "RegOpenKeyA" (ByVal hKey As Long, ByVal _
lpSubKey As String, phkResult As Long) As Long
Goal: Find information on how to implement a method which will check if a certain DSN exists, and then if it does, extract the information and use the information for connection purposes.
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May 24, 2012
I have a text box where i am entering numbers of double datatype andon the Keytdown event of the textbox some checks take pace and in certain circumstances I want to be able to stop the user from entering other information until they enter the right information in the textbox (where it says right here) . now when I say exit sub the textbox somehow loses focus . but this is not how I want it to be I want the textbox to remain with the focus so the user can change the information . How can i go about this. And the other thing is why is my txtDestPayRate1.Focus() just befor the exit sub not working?
Private Sub txtDestPayRate1_KeyDown1(sender As Object, e As System.Windows.Forms.KeyEventArgs) Handles txtDestPayRate1.KeyDown
If e.KeyCode = Keys.Enter Then
[CODE]...
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Dec 3, 2009
I am designing a backup/restore utility for work.atm i have been able to populate field for PC name, IP address, MAC address, number of printers installed on the PC but i am wondering is it possble to get all the printer information 'with the click of a button' to print all information like the prnmngr.vbs script down.I am able to run a batch file but i wanna get it to go from that app or even embed to batch file to the app and run it form there .
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Dec 20, 2011
I am trying to work with routing on a site I am creating. If I have two routes, /Home/{Value1}/default.aspx for route 1 and /Users/{Value2}/default.aspx for route 2, how do I tell a link I am creating to use a specific route. I am trying to create links in my .vb code behind pages but I am unsure on how to tell it to use either route 1 or route 2 depending on my situation.
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Aug 15, 2010
i hava a datagridwview with a datagridviewlinkcolumn and a split array with the links. How can I add this links from the array to the datagridviewlinkcolumn?
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Apr 20, 2011
how can i extract some links Say i have some links in text box but 3 different types of hosts
[Code]...
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Feb 6, 2012
Basically i need a code to put some links in a listbox, one after another. For example:
This is my table
ID-----URL--------
1 Google.com
2 Yahoo.com
and so on.
I have already opened a mysql connection, and i just need the code to put all the URLs in a listbox, one after another. I tried this: ListBox1.Items.Add("URL"), and obviousely didn't work.
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Aug 27, 2009
I am using VB2005 and trying to put an application together.What it needs to do is retrieve information from a binary file, possibly alter that information, and put it back into a new file.The file is a .wav file with data appened to the end. There is an additional section at the end of the .wav file which stores xml data.I have found that if I open this in a hex editor and make a 1:1 swap on any of the bytes that the application that the file is for can still read the XML.If I tried to add or remove characters from the XML then it would not read. I located a header byte and incremented it to resolve this.
This worked as an excellent bandage to do conversions where the data always needed to be changed to the same thing.What I have been asked to do is build logic that allows for different things to happen depending upon what data is contained within the file.The method that I am currently trying to impliment is:
Read through the file with a system.io.binaryreader
Searche for a bytestream that will signal data is coming
For example:
If System.IO.File.Exists("C: est estread.wav") Then
Dim findit() As Integer = New Integer() {&H3C, &H55, &H73, &H72, &H44, &H65, &H66, &H30, &H31, &H30}
Dim i As Integer[code].....
And then extract all the data till the end of element marker "<" It seemed like there should be a better way and I was looking for some insight. If I proceed with this method, I will have to read the file one time to gather the information and then a second time to write it all out with the header modified for length.This is my first experiene with working with binary files in this way.Also,I've been experiementing with building a string and slapping it back in at the end using the binarywriter.write(string) method.I noticed that it was putting in header characters before the string.These seem to change if I change the length of the string.At one point it was d0 07. Later it became e7 07. Does anyone know of a way to prevent this header from being inserted?
I tried a for each loop to grab all of the characters from the string, convert them to a byte array and deposit the byte array into the file, but the header remained the same. When I write the byte array generated from a system.io.binaryreader I do not get this header.
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Mar 29, 2009
How to add links to combo box's items...... Like when the form is loaded, the items are already there. If you select one it will take you to a website....And how do you make it so the items in the combo box are (PERMANENT) AND dont erase..
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Feb 20, 2009
I have a have a table with Region_Name, Region_ID fields, and another one with Area_Name, Region_ID fields (each region have Areas that belongs to it).I want to display on my asp.net page a list of links (something that looks like a treeView) so when someone clicks on for ex The Bronx from Region New York in this list:
[Code]...
So, apart from the basics, i want to know how to populate the above list Automatically and make sure that the results are ALL Links, in other words, New York is a link, The Bronx is a link, and all the elements in the list are links that i will later attach a queryString to.
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Oct 23, 2011
I am creating a program for a company and what it does is the following:1. Opens web page and logs in automatically - (Done)2. User selects from 2 folders on the site - (Done)3.ser types in date - (Done)4. User sets default directory for download - (Done)5. User clicks a download button that does the following:5a. Takes date that was put into text box and searches for any related folders and opens that folder - (Done)5b. After folder is open, there is the possibility of being multiple zip files to be clicked and downloaded - (Not Done)My problem is in 5b. I cannot figure out how to select multiple items. I have tried using a wildcard but that doesn't seem to work. I tried setting loops for each link but it only opens that last link on the page
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Nov 24, 2010
I am creating a program for a company and what it does is the following:
1. Opens web page and logs in automatically - (Done)
2. User selects from 2 folders on the site - (Done)
3. User types in date - (Done)
4. User sets default directory for download - (Done)
5. User clicks a download button that does the following:
5a. Takes date that was put into text box and searches for any related folders and opens that folder - (Done) 5b. After folder is open, there is the possibility of being multiple zip files to be clicked and downloaded - (Not Done)
My problem is in 5b. I cannot figure out how to select multiple items. I have tried using a wildcard but that doesn't seem to work. I tried setting loops for each link but it only opens that last link on the page. The zip files to be downloaded are all named in the following manner - 11-22(1).ZIP, 11-22(2).ZIP etc. Also, zip extensions vary from ZIP to zip. Don't know if casing makes a difference. What I currently have the program do is to click each file and begin download. All it's doing is clicking the last file in the list. Whole website is basically a JavaScript applet. The only way to click a file is to search for the link name. [Code]
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Oct 22, 2009
Anyone have an example of creating a signed URL with an expiration using ASP .Net? I'm exploring using LitS3 or ThreeSharp in my project, and have not seen any specific methods to do this in either of those projects.
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May 23, 2012
I hope this post is in the correct forum. We have a folder on the server that has pdf files. The file names are in the format of 'report_name_propname_04_21_12.pdf'. The report_name is different as is the prop_name and 04 is the month, 21 is the day of month, and the 12 is the year. The goal is to have links on the web page that has the prop_name(s). When clicked it would display a list of months as links. ie 01,02,03,...11,12 under the propname link. When these month links are clicked the web page would display
a list of links of the pdf files. The part of displaying the pdf link I have. The question I have is how can this be achived in code? Is there a control for this functionality? I think it is like an Excel pivot table.
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Dec 15, 2011
I'm working on a program that gets some info about a certain web page. But one of the features is it needs to find all the links to other webpages on THE SAME site (I think its called an internal link... not sure). I already figured out how to get the page's HTML code, now i just need to know how to find stuff like "" in the HTML code then output me [URL]
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Mar 14, 2010
I haven't coded vb in 4 months.. I never thought I would lose my experience that easily, anyways there's something I can't figure out.[code]...
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Sep 18, 2010
There are placenames on this webpage and if you click on the placename it leads you to its profile. I need to get all the profile links into a textbox on my form. An example of the webpage [url]...
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Apr 8, 2012
I have this code to take links from a page
CODE:
But how would i also get the links name?
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Sep 7, 2011
I want to grab all the links inside the onclick.[code]...
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Apr 12, 2012
I searched several keywords but could not find a good tutorial on how to create custom 'links'. My goal is for my apps to be able to handle special links inside of Outlook. The link will cause my app to display the proper info when it is clicked.
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Dec 1, 2010
I want to make a link from what the user filepath that is given from an openfiledialog. But I can't get all the quotes in the right places
[Code]...
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Nov 18, 2011
This sounds pretty basic but for the life of me a can't figure out why any link I add to a richtextbox is blurry is there a easy fix?
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