Filter A DataView To A String Nearest Match?

Aug 14, 2009

How can i filter a DataView to a string nearest match? Almost like a FullTextSearch, is this posible using a DataView?

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Integer Nearest Match Comparison

Jan 25, 2009

i'm building an image library and one of the things i want to do is compare the most common color in a given image to a set of established colors in rgb format the way i'll probably do this is create 3 arrays for the average r,g and b of each given image, and then compare them to my established values for r,g and b that i want to match to so if my first image has the average values of 255, 125 and 5 for r,g and b..what would be the best way to do a nearest match against my pre-established colors? (about 32 in total)

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Create Sql Union Like Filter In Dataview?

Aug 3, 2010

Is it possible to create sql union like filter in dataview

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Filter A Dataview & Bind It To A Datagrid?

Jun 9, 2009

I'm tryng to filter a Dataview & bind it to a datagrid but when I do the below, there is no effect. The dataview returns the original recordset.

Dim
filteredProductSpecs As DataView = Me.ProductSpecifications.DefaultView
filteredProductSpecs.AllowEdit = True
filteredProductSpecs.AllowNew = True

[Code].....

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DataView Manager (Row Filter) Do Not Apply Change

Nov 9, 2009

viewManager.DataViewSettings(tableFoood).RowFilter =
""viewManager.DataViewSettings(tableFoood).RowStateFilter = DataViewRowState.OriginalRows
viewManager.DataViewSettings(tableFoood).RowFilter =
"ftype=" & type & ""
In table food, I have different type of food, according I want to display in datagridview but dataview on first time show content of food, not change content in grid.

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Use Dataview.Rowfilter To Filter Datagridview For Users?

Aug 12, 2011

I am trying to use dataview.Rowfilter to filter datagridview for users. The basic idea is that user enters a text in a textbox, and then the below function is called to filter the text in all columns, like Col1=value OR col2=value OR col3=value. But I got error message of the filter expression.

[Code]...

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VS 2008 Dataview Filter Multiple Comboboxes?

Feb 15, 2011

This post is a continuation of my other post concerning 'List(of) with multiple comboboxes refill problem.'. I threw the list overboard and began anew with a Dataview.

So far I (finally) managed to get 2 comboboxes (will be more, but if it works for 2...) loaded with the same data using different dataviews (DataView1 & DataView2) so I can select a value from each combobox without the other following the selection.

But now I want to filter out the selected value from the other combobox.
This also works.

The only thing is this: If I select in combobox1 the value 3, and select in combobox2 the value 4, combobox1 will change to the value 2.

If I select in combobox1 the value 2, and select in combobox2 the value 1, combobox1 will change to the value 3.

It works also the other way arround. I can't seem to get my hands around the problem..

Does somehow the index of the items in the combobox play's part? I don't use the selectedIndex, so from my point of view it can't be..

The code I use:
(with the item 0 as 'neutral' option)
Public Class Form1
Dim dTable As New DataTable

[Code].....

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VS 2010 Filter Data With DataTable And DataView?

Feb 15, 2012

I'm loading a DataGridView from a DataView which collects data from a DataTable. I use the DataView to filter, this is the

Dim dv As New DataView
dv = DataSet4.Tables("TABLA1").DefaultView
dv.RowFilter = "propietario='" + NombrePro + "'"

[code].....

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Format DataColumn Values In DataView.Filter Expression?

Jun 11, 2012

I am trying to build a filter string for my DataView, but I have run into a problem. My underlying DataTable contains values that are formatted when displayed in my DataGridView.For example, if the DataColumn contains 1.52 and the DataGridViewColumn.DefaultCellStyle.Format = "n0" then 2 is displayed.So the user sees 2, then sets the DataView.RowFilter = "DataColumn = 2", and no DataRows are returned. Is there a way to format the DataColumn in the RowFilter string? For example, DataView.RowFilter = "FORMAT(DataColumn, "n0") IN (2, 4)". This filter string should return 3 rows. If not, can LINQ do this?

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VS 2005 Datatable Vs Dataview - Apply A Filter To The Defaultview.rowfilter Property Of That Datatable

Mar 15, 2010

I have a datatable and I apply a filter to the defaultview.rowfilter property of that datatable. If I then loop through the rows collection of the datatable, will I only be able to see those rows that the filter applies to, or will it loop through all the rows?

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Filter Data From Dataview By Date Like 12-05-2010 To 20-11-2010?

Nov 20, 2010

How can I filter data from dataview by Date Like 12-05-2010 to 20-11-2010

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DataView.Sort - DataView.Find On A DataTable That Is Already 'ORDERED' By The Column

Nov 20, 2010

If want to do a DataView.Find on a DataTable that is already 'ORDERED' by the Column I am seaching, so a DataView.SORT should not be necessary, but it throws an Exception if I don't give a .sort command before the .find command. Is there any way to avoid this apparant duplication ? and speed up the search time. Its a very large table - 1 million rows. I am using VB 2010

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Sorting With DataView - Dataview Always Sort The Highest Number Is The Buttom

Jan 5, 2012

I got a problem with dataview that get data from datatabel (Col1 : ID,Col2: Time) and I'm sorting by Time in desc ... when the values for example {40.21,80.21,70.25,25.2} the dataview sorting them as I need but when one of values goes above 100 for example {40.21,80.21,100.25,25.2} the dataview always sort the highest number is the buttom, I don't know why ..

This is a sample code

Dim dt As New DataTable
dt.Columns.Add("ID")
dt.Columns.Add("Time")
[CODE]...

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Search For A String In Dataview?

Mar 11, 2010

I need to search all cells inside a dataviewgrid in VB.net starting with "www" , once i found one cell apply a background color to the complete row and get the next cell with the same String.[code]...

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Take A String Out Of A Database Field And Match It With Another String?

Oct 8, 2009

The database field has text inside the field and I want to match it with another string...How do I convert a field to a string?

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VS 2008 : Match Words From One String To Another String?

Jun 9, 2009

Im trying to work out what the best way to match 2 strings together, but with a difference.

String1 = "dog cat bird chair book table"
String2 = "the dog chassed the cat around the chair"

No I know I can break string1 up by space character and check if each word appears in string 2, I would prefer to not have to do that.If there some sought of regex that would take a group of words and retrun how many of them matched ?

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.net - Get A String From A Regex Match?

Aug 1, 2011

I have :

[Code]...

I think I have explained my problem properly..

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Match A Word In A String?

Apr 18, 2011

I'm currently trying to match a word in a string - to a word in an 1 dimensional arrray.

So it does this.

1.Goes into array, gets first word.

2.Looks for that word in the string.

3.If can't find it, go to next word in array.

4.And so forth until it finds it or runs out of words in array.

Problem is the string can be upto 2000 characters long. And the Array with the possible matches can have upto 8000 entries.

So when it runs, if the word begins with 'A' it finds it dead quick as the 'A's are at the top of the array, ordered alphabetically. This is great.

But if the word starts with 'Z' then it takes 4-5 seconds before finding it.

I'm basically using InStr to find the word in the string.

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Match The Value In Textbox To String?

Jun 9, 2011

how to check if the user input has a match in my given string

Dim a as string
a = "abc"

if the user input in the textbox "erty" the message box will be shown string not found. if the user input 123abc the message box will be string found

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Compare Letters Of A String To See If They Match

May 18, 2012

I am making a question and answer game, and I would like to be able to give the user some slack in the answers if they were to misspell a word by a letter or two, like if the answers was Jumps and they type Jump if you did a comparison of them like If string1 = sring2 then do whatever, but obliviously those to string dont match, so it would return false, even though it is the right answer, I came up with this routine to compare two words and if the percentage of the letters are higher then 82 % right it will give you credit for your answer.

[Code]...

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Find Match In MultiLine String?

Nov 21, 2010

i have a string named Workers that had multiple lines of text. I need to search those lines for the term "BackGroundWorker1" if it is found then do something if not do something.

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Javascript - Getting The Closest String Match

May 2, 2011

I need a way to compare multiple strings to a test string and return the string that closely resembles it:

TEST STRING: THE BROWN FOX JUMPED OVER THE RED COW
CHOICE A : THE RED COW JUMPED OVER THE GREEN CHICKEN
CHOICE B : THE RED COW JUMPED OVER THE RED COW
CHOICE C : THE RED FOX JUMPED OVER THE BROWN COW

(If I did this correctly) The closest string to the "TEST STRING" should be "CHOICE C". What is the easiest way to do this?

I plan on implementing this into multiple languages including VB.net, Lua, and JavaScript. At this point, pseudo code is acceptable.

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Match Special Character Anywhere In String?

Feb 21, 2012

I am not a regex guy, so I need a little help, just cant get my head around this...

I am writing registration page and using asp.net validators. I need a regex validator to match a special character anywhere within a word, so it will satisfy requirement which says that "ID must have at least one special character." Allowed characters are[code]...

Once again, I am a junior, and having problems with wrapping my head around this stuff at this moment..

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Regular Expression - Match A String

Jul 2, 2009

I want to match a string for example "yes" but where it is not in brackets so that the following would be matched: yes (bla yes bla) bla yes

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Regular Expression : Match A String That Contains A,B,C,D,E And F?

Jul 2, 2009

I want a regular expression for the following issue:I want to match a string that contains A,B,C,D,E and F. string length should be 0 to 6. and not character should be repeat in the string.Example: ABCDEF, ACDEFB, EFBCDA, etc. but not ABBCDES/W Engineer

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Simple Regex Match String?

Aug 11, 2011

I have a simple string : s:10:"char1";s:2:"13";i:1;a:8:, i'd like to match that 13 from inside " ", in PHP i would do something like :
/s:dd?:"char1";s:dd?:"(.*?)";i:dd?;a:dd?:/i but i'm not good in vb's match methods,so please give me full example how i can match what i need ( it is possible to be multiple matches (2) ).

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String Match Whole Word And Replace?

Sep 30, 2011

I'm trying to replace a string with another but the problem is that the string is matching some other string partially.

For e.g. -
Dim x as String = "I am Soham"
x = x.Replace("am","xx")

After this replace I would only like the word am to replaced with xx but because my name also contains am its also getting replaced.

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Search A String Variable And Place The Match Into Another String Variable In Visual Basic?

Nov 18, 2009

I'm looking for a way to search a string variable for two words and copy the text in between them into another variable. This needs to be done as many times as the match occurs.

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C# - Reset The First Match Row's Column Value To Empty String?

Dec 11, 2009

new with Linq and very excited with this feature. However, I want to see if I can do the following with LINQ:

[code]...

Notice that I have a break in my foreach loop, meaning that I just need to reset the first match row's column value to empty string.

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Regex To Match String Containing Letters And Only Underscore?

Dec 2, 2011

Well my question is simple, I want to match a string with following attributesNo white spaceMust start with a letterMust not contain any other special characters other than nderscore

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