Dynamically Building A Search Result Page As User Types
Jun 18, 2011
I'm currently attempting to use a .NET WebBrowser to display help information (stored locally in html files) for an application I'm writing, however I'm experiencing two problems, both related to hyperlinks.
Firstly, I have a search function which returns the correct URL in the format file:\C:... I can copy and paste it into a browser, and it will navigate there. Yet clicking on the link within the control itself does nothing at all.
Secondly, the HTML files all contain relative paths to other HTML files. These of course do not work as I just end up with file:\C:help.html which gives me a 'webpage is unavailable.' But I can't think of a way to get it to work without parsing the HTML file and concatenating the path to the directory on to the front of the link.
Just to clarify, in the first problem I am dynamically building a search result page as the user types. The HTML contains several results similar to this (yes, it's unfinished, I'm just showing you the link part): [code] Now, when I click on that link in the control nothing happens, it doesn't give me a 'webpage is unavailable' or take me to the actual page. Saving the HTML, however, and opening it with Chrome, IE and Firefox works fine.In the second problem, I have a different help file for different sections, each containing relative links to several others. VB picks these up as direct paths, and attempts to go there from root, i.e file:\C:file.html. The only solution I can think of is to parse the file and use WebBrowser.Navigate(Path.Combine(pathToDirectory, nameOfHelpFile.html), which seems a lot more inefficient than it should be.
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Mar 24, 2011
I am creating a mediaplayer / playlist creator tool that basically imports MP3 songs into playlists (grids). I'm looking to add search functionality where the user can search all open playlists (or a subset of the open playlists). A Playlist is basically a collection of AudioFiles, where an AudioFile is a class that holds the filename of the MP3 file and then exposes the tags (Title, Artist, Album, etc) in public properties.
The idea is that the user can search for a certain expression (for example "the"), and that he can then choose whether to search in the title, in the title and artist, in the title or artist, in the title, artist and/or album, etc. However, I'm having a hard time implementing this and also having it kind of dynamic.
At the moment I am simply gathering all the AudioFiles from the open playlists (or from the subset of playlists the user chooses) and then running a simple LINQ query to find those AudioFiles where the Title contains the search text. Then I display the resulting AudioFiles in a new playlist window:
[Code]....
In case the AND / OR distinguishing is too hard, I would be happy to start with just letting it default to 'OR', so that the user can check Title and Album for example. If he would then search for 'a' then all songs that contain 'a' in their title as well as all songs that contain 'a' in their album should be returned. I guess that makes it easier, but I still wouldn't know how to dynamically create the LINQ query.
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Apr 27, 2011
I have a user control that checks if a certain query string and session value are present then returns a boolean based on that, if it's true I want to set the master page. The page is throwing an Object reference exception when it tries to call the method EditUser1.UserAuthorization(). Why is this happening? I imagine that the method doesn't exist at that point in the stack. Protected Sub Page_PreInit(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.PreInit
[Code]...
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Mar 7, 2012
I want to create a notes app for Windows Phone 7 using Visual Basic.I have read a few tutorials but they are all suited for C# not VB. Basically, I have a main page and a page to add notes. Once the user types out a note on the add notes page, the title of that note appears on the main page. I also want the user to be able to select that title and it will display the note. I have done a bit of research and I know I will need to use isolated storage (not sure how to implement it in VB) to save the notes. I think I will also need a list box that will store the title of the notes.
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Oct 3, 2011
I have a lengthy XML file that I want to search based on text that a user types in. Because it's lengthy, I want to wait for the user to stop typing for 250ms or so before I actually start searching in the background. I tried to kick off my Task, having it sleep for 250ms, then check if my CancelTokenSource had canceled because another character was typed. I'm not seeing a cancellation, though, so I end up seeing my results flash several times as the queued up search tasks complete, one after the other, after I finish typing.
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Jul 1, 2009
Is there an easy way of dynamically building a filepath in .Net? At the moment I'm building the filepath by concatenating various strings (from application settings, user input and Date.ToString) but this relies on there not being double '' characters or illegal characters etc in the strings. Obviously I can manually validate the strings for this sort of thing but I was wondering if there was something built into .Net that can handle this.
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May 22, 2009
I need to build a dynamic linq query with or operators. I have seen PredicateBuilder but that is in C# and my project is in VB. Basically I need to build a WHERE clause similar to this:
Where((this = 1 AND that = 2) OR (this = 1 AND that = 4) OR (this = 2 AND that = 4))
but the problem is the number will have to be determined dynamically at runtime, and added using a loop, like
for each item in myItems
query = query.OR (this = item.a AND this = item.b)
next
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May 24, 2009
This is the code I posted before. I have a thread open but it is confusing. I have a search of a datagridview. The search works. Now I would like to highlight the corresponding row of the search result. Scroll down to the highlighted row. If there are multiple results to the search critiria the next one should be highlighted.
Dim foundit As Integer = 0
Dim intResponse As DialogResult
With Me.DS.table
[CODE]...
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May 10, 2010
I'm trying to make an application to do mathematical equations, but I also want to implement error checking. So that if someone doesn't put anything in one of the fields the output textbox will say "Error".
But the problem is that I already declared the variables I used as a numeric value, in my case decimal.
So, when I make an if statement that says if inputbox1="" then outputbox1="Error" it doesn't work.
I think that in order to get this to work I would have to have it setup so that the variable that is exported to the text property of outputbox1 could switch between being declared as a decimal or string value based on what the user put into the textboxes. But I'm not sure how to go about this. Declaring the variables inside the if/elseif statements won't work because the variables need to be declared before they are calculated within my if/elseif statements.
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Dec 31, 2009
i want to ask that how i can open a search page in my vb.net webbrowser with a separate textbox in a tool bar separate from the url text box
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Oct 20, 2011
I have a search function de build.We are using pure ASP.NET w VB.NET We have multiple DropDownLists and we're building a search query with whatever was selected in those DDLs. My question is, how can I handle the blank values (unselected dropdownlist values) with the SQL Query ? I'm using AND operators in the query so if anything is blank it'll fail the search. If the dropdownlist has no selected value, i don't want the value to be part of the search. It would be easy to code with just 2-3 parameters, but we're looking thru at least 10 items and doing a SWITCH CASE or multiple IFs would soon become mayhem.
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Apr 4, 2011
I've setup an ItemTeplate like so in a GridView:
<asp:TemplateField HeaderText="Building">
<ItemTemplate>
<asp:Label
[Code].....
I'm receiving the error:
EntitySet 'Building' that was specified in page markup does not exist on the Container.
There is definitely a Building entity in the pbu_housingEntities?
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Jul 14, 2009
I'm trying to save what the user types in the vb code Dim user as Inputbox("") for example in a .txt file i can save the textbox and listbox but i cnt figure out how to save the inputbox i really need this to be saved the most.
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Dec 5, 2011
I can usually find the answers to most of my questions via the Google Gods, but not this time.I have a form that has a TabPageControl and on that page a collection of labels and text boxes via a usercontrol.
On the form I have a button that allows the user to create a new tabpage, when the code adds a new page, it automatically adds the UserControl collection. I can't get my head around how to access the objects on the newly created tabpage.
What I need to be able todo is take the index of the tabpage that has focus and translate that against the UerContol name, but I havn't a clue how to do it!
[Code]...
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Feb 11, 2010
I have a Search function on my database.It countīs how may search result you get but now i want to load one column from each search result ( for each row in a DataTable ) into a "ToolStripDropDownButton.dropdownitems".[code]
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Jan 6, 2010
I want to take on a challenge.My ide is to me a program that search a folder for files with a specific file type ( like ".mp3")and then add information to a listview(Details). the information i want to add is:
[Code]...
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Nov 19, 2009
I have a similar problem like here:
[Code]...
So in this case it must search in table FoaieParcursMasini find the second row and then stored the result of search in the listview.
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Mar 12, 2010
Is there anyone here, can share some tutorial or ways to convert search result which is in xml format to html view which is more easier to view compare to xml view.
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Mar 15, 2012
i am trying to make a search form with 1 label(surname) and textbox. i have 1 gridview on the form aswell. can you plz provide me any code so that when i type in textbox i should c the result in the gridview. wat i have done right now is. i have added data source and i than dragged the dataset.but when i load the form i already can see the data loaded on grid view .it than filters depending on the textbox. i want this gridview to be empty when it gets loaded.
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Sep 2, 2009
I've created a form which correctly displays all my fields in a recordset. I can scroll through them, add new records, delete records, etc. etc. and everything is fine. I now want to add a Search field to the form so that when the user enters a search string, it automatically searches through the dataset and refreshes the display to display the appropriate search result (i.e. populates the currently open form with the appropriate record).I have a simple database, and I have created a form (not a datagrid) for displaying the records (and to make it easy to add new records and browse through with the next and precious record buttons). BUT, to put a simple textbox on the toolstrip and enable the user to write something in it and then click a button to display the entire record containing that "something" seems imposible.
I have eleven columns in my table, and I want to search the one with the Primary Key, so there will be no confusing wich record to display.
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Oct 3, 2011
I created a small databse program, when I created the search field I wanted to display the results in "listbox" which I found some code that work perfectly
For each row in ds.tables("Tablename").rows
me.listbox1.items.add(row(1).tostring())
Next
but I also need to display "row 2" ACCORDING to the selected item from listbox in a textbox.
since the listbox is displaying the result of a search, it's been hard to find, how to do this?
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Jan 5, 2010
I am trying to search an array and then say whether the result was found or not.
So far i have:
Option Explicit On
Module Module1
Const MaxAnimals = 20
[Code]....
Now i have looked online and all of them seem to give you like ready made things on VB but i have not used them yet and i know there is an easy way of doing it as my friend managed to do it before but i can't get hold of him.
Basically it is a program (There is more of it but this is not necessary for this) which puts the names of animals into an array then you can either add another animal, or in the sub i am doing at the moment view all the animals in the array but i can't work out how!
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Sep 20, 2011
if i want to search for any thing in the database for example i write in the textbox the key ward how i want to search it then the result show in the table 'DataGridView'
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Apr 28, 2010
search datagidView and Display result in another datagridView using
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Nov 24, 2009
I experience some difficulties with property Item of DataGridView component.
The application is made in Visual Basic 2008 Express Edition and I'm using Sql Server Management Studio as DBMS.
I have made a query starting from my tables and I want to add the result of query in a datagridview in reference with what the user selects: (I have 3 textboxes and 2 datetimepickers).
Here's the code in button search:
(don't know how to add the 5 components in the dategridview and integrate the query in datagridview).
My form is this:
Here's the full code of search button:(where I have problems) (I made a reader to read my query and I need to store the result of query in a datagridview related with what user types in the 3 textboxes and selects from the 2 datetimepickers.)
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim conexiune As SqlConnection 'for connection with sql server
[Code].....
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Nov 1, 2009
I wanted my search result to display in the DataViewGrid but it shows nothing when i click the search button or anything i did wrong?
[Code]...
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Feb 10, 2010
How do i code so my program will give me a message box if there are no result of my database search?
there is the code for the search. [Code]
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May 26, 2009
I'm in a bit of a quandry. I am trying to build a simple search form where the user selects the column title and in puts the criteria then clicks the search button. This is the code I am using
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
details = ComboBox2.Text
'column name selected by user
specifics = TextBox1.Text
'criteria input by user
[Code]...
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May 8, 2010
I am developing an application that takes user input into text boxes or list boxes or check boxes. I have 4 forms with questions of different categories. I want to form a paragraph string with some literal string text and add in the text from text boxes, selected item from list boxes and, either, add literal text string or add nothing to the string based on check box condition.dim strScopeParagraph as string
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Jun 25, 2009
I was trying to find examples of how one would make a webpage using asp so that I could have the visitor enter information on a form and then when they hit submit it will be attached to my webpage indefintaly and any visitor can view it.
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