I need some guidance on the best way to proceed with searching a file content. I have a large file (see attachment) that is in text form, some of these files could be upto 50 times as big, therefore creating a huge file. These files contain information that is produced from another application and therefore I am unable to change the format of the file.
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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
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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
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I want to make live search form like when user enter 1 char then it ll find all data start with or contain letter.i have use the sql like query with textbox textchanged event but it is too slow any other method to make it fast?
View 4 RepliesI have a search function in my app which is a groupbox with a textbox that contains the search keyword and a couple of radiobuttons. Do I have to create a keydown event for every single radiobutton and textbox? Or is there a better way? I tried making a keydown event for the groupbox but that didn't work.
If your interested, this is my
Private Sub Search()
Dim textBoxContents As String = txtBoxKeyword.Text
Dim keyword As String = Nothing
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[code]the main piece deals with the binding source filter. I've tried or/and. i tried to include that both codes in the string. i don't know what to do again i know you would recommend SQL but i don't know how to use that yet, so could you please recommend some bindingsourcefilter code to assist please. Its for a School project the search window looks like the attached picture
View 13 RepliesI need to write a program in visual basic 2008 that allows the user to enter in information about a video into textboxes and from there it needs to be sved to a file. The user also has the option to search for a video in the collection by name and the info for that video should go to the textboxes. how i can do this?
View 2 RepliesI have built a webcrawler where I use a webbrowser control for a user to enter a url and perform a search. Once the page is uploaded, my app grabs the HTMl and then with a button click convert it into plain text by using html agility pack (HAP). Finally by clicking a button I store the result inside a sql server database.
Now I want to use a background search system using the above control to perform the task which I am not able to figure out Basically say If I have a textbox where I enter the URL and it grabs the HTML then using HAP I have convert it into plain text and store it inside a database.Here is my code class for the normal search I carry out:
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Haveing troubles with an assignment. I am writting code that will allow user to enter a score and the program returns a grade based on the score entered. I can get it to work using "IF" statements but want to use code for ranges. My "IF" code is as follows.......
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im trying to develop a vb.net script which returns the below information of a windows file
View 3 RepliesHaveing troubles with an assignment. I am writting code that will allow user to enter a score and the program returns a grade based on the score entered. I can get it to work using "IF" statements but want to use code for ranges. My "IF" code is as follows.......
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Iam using this method to seach in xml file but it returns search by first word for example i have a name [url] and i write in seach box word "forum" then it will not return any result but if i write "vb" then it will return the result how to solve this problem code is here
Private Sub Button5_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button5.Click
Dim b As Integer
If TextBox10.Text <> "" And ComboBox1.Text <> "SELECT" Then
Call sorting()
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I have three controls on my form; Textbox1, cboCity, lstCity When something (lets say "a") is entered in the TextBox1; I want to get each and every item in combobox cboCity that starts with "a" and add them to listbox lstCity.
View 5 RepliesThe help in visual basic express 2010 directs me to the web,My searches often pick up info on C pgms and VB 6 etc.I have been adding VB 2010 to each of my searches.e.g. Format vb 2010.How do others search for relevant info in these web searches.
View 4 RepliesI'm trying to enter new information in a specific node in a xml file. This is the structure of the xml file:
<Root><Title 1><Title 2></Title 2></Title 1></Root>
How would I update <Title 2></Title 2> field?
Can I safely move ReferencePath information from a .vbproj.user (or .csproj.user) file into the corresponding project file? Note: All developers will be using developing from the same location on their machines.We'd like to allow users to maintain their own settings for other things, but have this basic info be setup once and checked into source control to be shared to all.
View 1 RepliesI'm creating a search control where searches can be compounded. So, for instance, I could create a search for Orders where OrderID = 1232 or OrderID = 2343 and OrderID <> 23435
So I have a button that users can click to compound. Obviously its a complicated problem to do well, but in any case, on my path to trying to find the best way to do it, I wanted to create a variable that could be either '=' or '<>' depending on the value of some other variable set elsewhere.Is there a way to do that? Or do I have to switch to Expressions?
I am creating a search function which searches a database for keywords in a selected field in FilmTable (name of table to be searched)
This is the SQL I am using:
CODE:
It is saying there is an error in the FROM syntax
Im using a simple access database with only 2 tables and I creadted a form with a datagrid to show all data inside the tables, and now i want to create search buttons for each field of the table . like, "seach by Name", Seach by date" etc... i tried to use the simple code
Code:
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Dim cod As String
cod = InputBox("Type the Id to search: ", "Search By ID")
If cod <> " " Then
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My biggest problem now is that this code works very well to search by id (which is my table primary key), but now i want to search by other fields and this code only allows to search by primary key! Is there any way to use something similar to this code to search by other fields?
In DataGridView I have three columns(year, month, day)
I wont first search dategridview by mounth, and the results search per day
I am doing a simple database project.I need to give the input in the database which is an access db from my input form and i have managed to do this part right.then i need to retrieve the details from the db using multiple search fields and show them in the datagrid view.I have 8 search fields(5 textboxes and 3 combo boxes). I also have included 4 other buttons which respectively clears the search boxes;clear the results of the gridview; show all results from the database;go to the input form and offcourse 1 search button.now all the buttons working fine except the search button. actually when i click on the search button if i include sql query for all the search fields only the first one works and also if i have clicked any other buttons before clicking the search button nothing happens, no result is shown and it happens the same if i search once and clicked any other buttons and come back to search, no result. I need to show the results in the gridview depending on the user input on those search criterias. user should be able to search in any combinations.I am using the below codings in my search form. the combo boxes are not bound.datagrid is bound to database though.
Public Class Paxsearchfrm
Private Sub Paxsearchfrm_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'TODO: This line of code loads data into the 'LAFDataSet.Table1' table. You can move, or remove it, as needed.
End Sub
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When I use this code to open a new form, My maskedtextbox on the new form can't allow the user user t enter any text. This has slowed me down a bit.
Dim F2 As New FrmStudentRegistration()
F2.TopLevel = False
Controls.Add(F2)
F2.Show()
so my program takes what the user enters into a textbox and searches through the data i have stored and if it matchs one of the peices of data it displays the apropriate data to the user. This all worked fine till i changed the textboxes to be added dynamicly to the form when it is load and i put all textboxes in a collection. So now when the text is sent to the search sub it sends the data over but always returns that it didnt find a match. But if i go into the search sub and just tell it what to search for automaticly it finds it no problem.
View 3 RepliesI've got a form that populates a DataGridView from an excel file. How would I filter that DataGridView so only the search criteria are visible. I need to search through 2 columns by all rows. I'm not very good with datasources I guess and can't figure out what all I need to accomplish this. DataSets, DataViews, DataTables.
View 17 RepliesCurrently I am searching through my list to find Customers that match on Address.
I need to match on both address and city. How do I rewrite my lambda Expression to match both criteria?
CustomerList.FindAll(Function(c) c.Address = addressToMatch)
I currently have a program that allows users to download files into a folder of there choice. I currently have 10 different forms all with a text box to show folder location and a browse button for user to find it, but what I want to do is create a form that will appear at the start where the end user can enter the folder location so that they don't have to enter the folder path for every download they want to do. How would I go about doing this I have a textbox, browse button and an OK button but have no idea what to do next.
View 1 RepliesI'm using VB.NET with the MySQLConnector, I have an ID column with differents values, i.e:
101
102
201
202
203
302
304
305
306
I want to select all the values that start with "3" and then, select the MAX of them, in this case, "306"
I am building a real estate website. I have a table for properties (i.e. "houses"), a table for pictures, a table for features, etc. So each property's data comes from three, not only one table. I need to provide a function that retrieves requested property data depending on a search criteria, for example:
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The company require an application that displays coffee usage information for the managers of CostaB Coffee. Sample data has been provided for last years (2011) monthly usage amounts in kilos and is as follows: 400.5, 450, 475.5, 336.5, 457, 325, 220.5, 276, 300, 320.5, 400.5 and 415.
Requirements: The main form will allow the user to enter and store monthly amounts in an appropriate data structure. It will enable the users to calculate the total usage for the 12 month period and average monthly usage. A further requirement for the application is for the users to be able to display the monthly totals in ascending (smallest to highest) and descending (highest to lowest) order of the monthly usage amounts. Utilise appropriate formatting for input/output and include appropriate error trapping and data validation in the application.
I am using VB and would like to build a text file that contains the user's computer specification, software, hardware and specifically the USB data.
How would I go about doing this?