String Searching - Find Records That Does Not Have This List Of Strings In

Jun 12, 2011

I have a problem finding strings that do not exist in a column in a database. I am going to use linq but its more the 'way' of doing I am concerned with.

I have strings like;
MEAL
GPST
EXLEG
EXLG ...etc

I need to find records that does not have this list of strings in, so for example DBML BUT sometimes I can have the string MEALDBML, or more concatenated. So this is a known string of MEAL and unknown string of DBML. I would then want to see that record. I do not know the unknown strings up front, so its a case of feeding in the strings I know are ok, and finding one that are outside that list. I was also thinking of regex?

View 1 Replies


ADVERTISEMENT

Data Combo Searching System For Records In List

Aug 5, 2009

In general Combo Box looks for the strings in the list that Start with the text that typed in the textbox portion of combo box.

I want a feature in combo box which do not just look in the starting of the strings, insted they shold search the maching strings within any part of records i.e. If User types 'Ja' in textbox portion, the the list should show following maches with highlighting the mached records

Micle Jackson
Sandeep B Jakhotya
Javid Akhatar
Suresh Jadhav
Jackie Chan like this.

Similar control is already used by Yahoo Web Site for Search Assistance in its Web Search Combo box. Here if we type say 'bush', it will populate following records

george w bush
jenna bush
bush shoe
bush game
hot dog bush

I want the same with Visual Basic for Windows Form Applications.

View 5 Replies

.net - Write A Linq To Sql Query To Find Records Where Field Name Can Match One Of Dynamic Number Of Strings?

Mar 21, 2012

I have users check off lab facilities in a UI. I want to use linq to fetch corresponding records for all of the labs that they have checked off. Basically,

Dim myRecs = (From l As EpiData In myDataContext.EPIDatas Where l.facility= _
one of the checked labs

So basically, I need to write a linq query where the "strings" to match are determined at runtime. Is there any way to do this easily? I know that there is a library out there called dynamic LINQ, but (1) it's in C# and I'm writing in VB (2) I'm really just looking for a single, simple solution for this single case.

View 1 Replies

Prepend A String To All Strings In A List Of Strings?

Aug 5, 2010

I have a list of strings. For each string in that list, I want to prepend another string. I wrote a method to do it, but I was wondering if there was something already in .NET I could use to do this. It seems like something that could be built in, but I was not able to find anything.

Here is the method I wrote:

Private Function PrependToAllInList(ByRef inputList As List(Of String), ByRef prependString As String) As List(Of String)
Dim returnList As List(Of String) = New List(Of String)
For Each inputString As String In inputList
returnList.Add(String.Format("{0}{1}", prependString, inputString))

[code].....

It works, but I would rather use built in functions whenever possible.

View 5 Replies

How To Use LINQ To Find Matching Data Against A List Of Strings?

Jun 22, 2010

I have a specialized string dictionary of (string, string) (_RulesAndTheirDescriptions) that contains the name (key) and description (value) of methods in a given class. I currently do the following query to search for a match on the key or value and then bind that to a grid.

[Code]...

View 1 Replies

Find A String Between Two Known Strings?

Mar 6, 2010


How can I find a string between two known strings like:

name=login value=12345 />

Now I need to get the string/the numbers between name=login value= and />
It's from a webpage so it has multiple lines.

View 4 Replies

Find String Between 2 Strings?

Feb 15, 2010

I have a string in which if the string "<error" appears (as part of a larger string which would look something like this

" <error code="200">Current security level not high enough.</error>"), it finds what the code equals (in this case 200) and the message which appears between the pointy brackets (in this case "Current security level not high enough.").[code]...

View 13 Replies

Find String Between Two Other Strings?

Jul 9, 2009

I am trying to take a value from an html file. I know what code will be around the value. So I want to split the html doc with these values so I can get the value between them.

For example:

<h4>Availability</h4>
<p>
<b>Availability</b>: VALUE IS HERE <br />
</p>

[Code]....

View 23 Replies

Find Strings In A String?

Mar 11, 2011

I have a string, and I want to search it for multiple strings, which I basically want to use for searching for urls in an HTML file that's been loaded into a string.

so get the value of everything between

href="http:// and the next " and return it (I want to check each one separately and do different things with them, so maybe add them to an array that I can loop through?)

preferably simple short code than highly functioning code

View 5 Replies

Searching A List For A Text Box String?

Mar 22, 2011

It seems simple enough, but apparently I cant figure it out. Theres more to my actual problem, but once I figure out this concept then I can do the rest. I want to search a list for a given string, and if it matches, then print it out. If it doesnt match, then it moves to the next item in the list. If if doesnt find any matches, it says "no matches found".

[Code]...

View 1 Replies

VS 2008 Searching List(of String) For Duplicates?

Jun 28, 2010

Okay so i have a very large list of string (500 000 strings) i want to check the number of duplicate strings and maybe even isolate the duplicate strings if i can.

i cant find a fast method to do so :S

i tried using a string array (slower than list) takes ~15mins

i tried using list with the code below takes ~10 mins

that wont cut it :S i need something faster.

[Code]...

View 10 Replies

VS 2010 Remove Item In List(Of String) By Searching?

Nov 25, 2011

Does anyone know how to do this? I'm stuck on a boat right now out to sea(Navy) and don't have access to vb.NET, its in my berthing...

So someone clarify this code and see if it works?

Dim index As Integer = list.FindIndex(Function(value As String)
Return value(0) = "STRING HERE"
End Function)

View 1 Replies

Way To Concatenate List Of Strings Into A Comma-separated Strings, Where Strings Are Members Of An Object?

Oct 16, 2009

Say I have a List(Of Tag) with Tag being an object. One member of Tag, Tag.Description, is a string, and I want to make a comma-separated concatenation of the Description members.Is there an easier way to do this than to read the Description members into a List(Of String) and then use the Join function?

View 2 Replies

Choose The Same Strings From Two List (Of String)?

Feb 24, 2012

I have two List(Of String).Both Lists contain duplicate strings. I want to pick out all the strings which are contained in both the Lists. For example:

List1 ={"10X100","10X100","10X100","50X100","50X100","100X100"}
List2 ={"10X100","10X100","20X100","50X100","50X100","100X100","200X100"}

So, the result should be: List3={"10X100","10X100","50X100","50X100","100X100"}.How to do this?

View 7 Replies

Searching Strings That Is Not In Any Of The Others

Apr 27, 2009

I have 5 strings of varying length and I want to see if any of them have a 1-character substring that is not in any of the others. If it does then I want the value of the original substring to become the value of the string holding it. The names of the five strings are T1, T2, T3, T4, and T5. [Code]

View 11 Replies

Find Index In List(of String)

Jun 7, 2010

I have an List(of String), i need to find the index of a particular string in that list. I have searched msdn , but i am confused over the predicate methods. I have never used predicates. This i what i have tried

vb
'on button1 click
Dim Heads As List(Of String) = Me.GetSelectedNodes()
Dim tmp As Integer

[Code].....

View 1 Replies

Searching Strings From Textfile

Jun 1, 2009

First im using Visual basic 2008 express.

Heres what im trying to do. I want to search a text file for a word (say) then write only the lines containing that word into a textbox.

Heres what i got..

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim Reader As New StreamReader("C:Program FilesActivisionCall of Duty 2main estgames_mp.log")

[Code]....

View 5 Replies

Find Duplicates In List(Of String) In Program?

Jun 27, 2012

I have a customers List(of String) on which I am trying to find the duplicate customers.[code]...

View 2 Replies

Searching For Existing Records

Mar 31, 2012

i'm just new to Visual Basic.. i'm using 2008 version by the way and here are the codes that i made

[Code]...

View 1 Replies

Find A Substring In An ArrayList, StringCollection Or List(Of String)

Jun 7, 2010

I've got some code that creates a list of AD groups that the user is a member of, with the intention of saying 'if user is a member of GroupX then allow admin access, if not allow basic access'.

I was using a StringCollection to store this list of Groups, and intended to use the Contains method to test for membership of my admin group, but the problem is that this method only compares the full string - but my AD groups values are formatted as cn=GroupX, etc....

I want to be easily able to determine if a particular substring (i.e. 'GroupX') appears in the list of groups. I could always iterate through the groups check each for a substring representing my AD group name, but I'm more interested in finding out if there is a 'better' way.

Clearly there are a number of repositories for the list of Groups, and it appears that Generics (List(Of String)) are more commonly preferred (which I may well implement anyway) but there is no in-built means of checking for a substring using this method either.

I've settled on using a List(Of), and I've borrowed from Dan's code to iterate through the list.

View 3 Replies

Code For Searching Through Student Records?

Jan 5, 2012

Ok I have a search Button that will search through a student table and produce the grades of all the stdents in a class room when I enter the class room number into a textbox(txtclass.Text). The results will be displayed in a DataGridView and also I have the average grade of the class displayed in another textbox(marks.Text).

My program runs fine but I would like to add more code so that If I enter a wrong classrom number into the search textbox and Search for it then I would like a messagebox to pop up and say that the classrom you have entered does not exist. .I have tried different if statements but none has worked for me so far.

[Code]...

View 5 Replies

Write Codes For Searching Records In VB?

Jul 28, 2009

How to write the codes for searching records in VB.Net database.

View 1 Replies

Searching And Finding Strings Inside A 2-Dimensional Array?

Nov 14, 2011

I am working on arrays and I am currently having trouble with searching and finding arrays. In this example, the user should be able to enter a Name, and it will output that person's stats.

Here is the text file (note, I should be able to go to this text file, add a few more names and the code should still work, which is why I am using loops,arrays,text files instead of if and else statements),

Kobe,29,6,4
Allen Iverson,28,7,4
Jason Kidd,12,10,9

So if the user enters Jason Kidd in the text box, this will display in another text box:

Jason Kidd averaged 12 points, 10 assist, and 9 rebounds.

[Code]...

All right now is the searching part. I really do know how to search for what the user entered and display the statement in a text box. I kind of have an idea of how to just get the name, but for it to get the name and then all the data for that name puzzles me even more.-I tried using .contain, indexof and few others.

I know to display the information in the text box will be something like:

textboxoutput.text = PlayerName & " averaged " & PlayerPoints & " points, " & PlayerAssist &" assist, and " PlayerRebounds " &" rebounds"

So basically, I want it to where the user can enter a basketball players name and display the values for that name.

View 4 Replies

VS 2008 Using List Of Strings Or Array Of Strings?

Oct 16, 2009

I'm migrating from VB6 to VB.NET, in hence my questions below:

I have to write a function that returns array of strings.

How can I initiate it to empty array? I need it since I have to check if it's empty array after it returns from this function.

Is list of arrays better for this purpose? If I use a list - Is it empty when it firstly defined? How can I check it it's empty?

View 3 Replies

Find Strings Inside Strings?

Aug 15, 2011

I have been looking for examples to find the string between two strings. This top one works fine;

Public Sub ReadData(ByRef keywordStart As String, ByRef keywordEnd As String, ByVal filename As String)
Using reader = New StreamReader(filename)

[Code].....

Now the first one is fine - Ext_Volume is result of the string between the strings <Volume> and </Volume>. <Volume> and </Volume> are unique so this is straight forward.

However the second one - "^FDExp:" is unique, but "^FS" is not unique. There are occurances of "^FS" before and after "^FDExp:".

How do I get the string to search AFTER the occurrence, not before etc?

View 5 Replies

Delete / Update And Searching Records In Database?

Dec 14, 2010

1- How to delete & update any record in the DataBase in vb.net?
2- How to make search & advance search about any record in the DataBase in vb.net by date,ID ........etc?

View 1 Replies

Searching And Displaying Specific Records In A DataGrid

Apr 6, 2009

I've tried a few different methods I could find in order to connect my VB .NET program to a book store's database. While I've been able to connect to it and display the contents of its tables in a DataGrid, I need to be able to search the tables and display specific records, depending on the contents of appropriate the adjacent text boxes.[code]This is a code I've used for a very similar process, just really aims to search a different field in the table. If this is easier to adapt into a code that allows searching and producing specific records in a database, please use this one.

View 2 Replies

Searching Table Records In 2008 Express

Jul 8, 2010

I have a form that reads the data from the database table ( so you can see I have figured out how to attach to a databse table)On the form I can scroll through the data with use of the binding navigator that VB automaticly installed on the form, but I need to search the table for specific data in one field.I am guessing that one way is to use a query, but I can't figure out how to use one.I realize that this may be real simple, but because I am just learning VB, I don't know where to start.

View 4 Replies

VS 2008 Searching Through Records In A Data Table

Jan 13, 2011

I'm trying to write code that allows a search for a particular record in a data table. The table, imported from an access database has 4 columns, the first being names of cities. I need to search for a particular city and have it display the city name and the other three columns of data for that row in particular text boxes. Here is my code...it is the last sub routine that is the problem...I'm tying myself in noob-ish knots trying to figure out nested loops etc to search... (I've commented some of it out whilst I tried to figure it out but I'm running out of time and patience and my knowledge of VB is limited!!)

[Code]...

View 3 Replies

VS 2010 GridView - Searching Records By Month Name

Mar 4, 2011

I need to search a keyword put in a text box. In my case, I want to search records by the month name. I would want a command button that displays results according to the keyword typed in a text box. Now I tried two methods, one with a text box, one with a query. Both Do search, but the fields return empty.

Heres the code for my form where the datagrid is:
vb.net
Public Class Form6
Private Sub Pay_CalculatorBindingNavigatorSaveItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Pay_CalculatorBindingNavigatorSaveItem.Click
Me.Validate()
[Code] .....

I want to display summaries of data entered, by criteria, like by department, by month, by year etc. How do I do that one? I have vb 2010 express.

View 2 Replies







Copyrights 2005-15 www.BigResource.com, All rights reserved