Datatable.column Expression To Match Select Sum From Where
Aug 15, 2011I was wondering how i could pass the following SLQ function to my datatable:
Select sum(Quantity) from Purchases where transaction_mode=1
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Use DataTable.Select Expression But With Accent Insensitive Way?
Jan 17, 2012Anyone here know how to use DataTable.Select expression but with with a Accent Insensitive way?[code]...
View 20 RepliesDatatable Column Expression Error?
Feb 7, 2012I am getting a syntax error " Missing operand after 'Price' operator" with the following code, which should be right but obviously isn't. Any thoughts on where the error is?
table.Columns.Add("ADR Price", GetType(Double))
table.Columns.Add("ORD Price", GetType(Double))
table.Columns.Add("Currency Price", GetType(Double))
[code].....
Unable To Select Multiple Column In Datatable (dtable.select())
Aug 2, 2011Unable to select multiple column in datatable
Code:
Dim Activitydtb As DataTable = DirectCast(ViewState("TalentcharacterActivty"), DataTable)
grdviewactivity.DataSource = Activitydtb.Select("SELECT
[Code].....
Select Some Column From DataTable?
Jun 6, 2010I need to Quarry from Data Table Like
select Name, Address from myDataTable where name = 'x'
and
select distinct(name) from myDataTable
Datatable Select Method / Blank Column Only
Sep 9, 2011How do i use Datatable.select method to select only those rows where a specific column value is blank?
View 16 RepliesIDE :: Unable To Select Multiple Column In Datatable
Aug 2, 2011Unable to select multiple column in datatable [code]....
View 3 RepliesVS 2010 : System.ArgumentException Was Unhandled Message=DataTable 'get_item_list' Does Not Match To Any DataTable In Source
Apr 21, 2010I am working on a project that takes an xml schema and xml data files and places them into a DataTable, the 2 files are generated from a working table that i have written to disk. I wish to load these 2 files into a DataTable. Here is What i have
vb.net
Friend Function CreateTable(ByVal tableName As String) As Boolean
Dim table As New DataTable(tableName)
table.ReadXmlSchema(tableName & ".xsd")
[code]....
this however produces the following error on line 3
Quote:
System.ArgumentException was unhandled Message=DataTable 'get_item_list' does not match to any DataTable in source.
get_item_list is the parameter passed into this function (tableName)
Code To Put In An Expression To Add Database Columns In A Row And Display It In The Expression Column
Mar 21, 2010While looking in the dataset designer for a database table I am doing in visual basic 2008 I found a line for expressions under the property menu for a specific column. I need to know the code that I would put in this expression line so that this column adds up the numbers I input into three other columns and displays that number in the column. I need it to automatically calculate this for each row in the database table.
View 13 RepliesReg Expression To Match Bold Pattern Only
Jul 9, 2009I have this pattern
-Dim pattern As String = "<BOOKMARK[^>]*>"
-Dim m As Match = Regex.Match(RichTextBox1.Text, pattern)
How can I match this pattern but only in bold form? I am trying a non regualexp approach but I am getting 'object reference not set to an instance of the object. Any ideas what I am doing wrong?[code]
Regular Expression - Match A String
Jul 2, 2009I 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
View 7 RepliesRegular Expression - Match Domain In URI
Jan 8, 2011How can I match the domain part only of a URI with regular expressions? I see lots of examples but the mutch the subdomain too. What I am looking to do is to capture only the domain. So, for example [URL] should match only google. As a secondary question, I am looking to implement this on a VB.NET program. Would there be some other way to do it without regular expressions?
View 2 RepliesRegular Expression : Match A String That Contains A,B,C,D,E And F?
Jul 2, 2009I 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
View 3 RepliesSelect Method Of DataTable Doesn't Work - "value Violates The MaxLength Limit Of Column"?
Nov 11, 2011I need some help on merging 2 tables. A simplified version of the issue and the error is outlined below. I am doing the following steps: 1. Create & Fill the schema of the table TblA by an adapter. TblA = DSTasks.Tables.Add("A") AdpA.FillSchema(TblA,
[Code]...
Find A Match For A String In Column 1, Return A Value From Column 2 On The Same Row?
Sep 25, 2009i'm trying to get my program to look up a string and find a match in an access database in column "PhoneNumber" and return the value from column "FullName" on the same row to a different string
so it would go like this: (i really don't know much about accessing databases)
Dim PhoneNumber As String
Dim FullName As String
PhoneNumber = TextBox1.Text
FullName =
Data Type Mis-match In Criteria Expression
Dec 11, 2010I am developing a vb.net application with MS Access Database . I have a field(cut) with double data type in table marks of markss.mdb.[code]On debugging , when I enter ,say 7.9 , in Textbox 1 ,I get an error saying Data type mismatch in criteria expression.
View 1 RepliesMatch A Certain Url From An Html Page Using A Regular Expression?
Sep 14, 2009I would like to match a certain url from an html page using a regular expression. For example I only want the url that appears after the <h2 header in the html page.basically here is the url I want to match; so what would the regular expression look like.
<h2 style="display: block"><a href="http://url.com/">url</a></h2>
I have matched the href part, but I only need to pull this particular one on the page that appears after the h2 header.
Match Whole Words With Regular Expression For Any Kind Of String?
Jan 4, 2012I want to match whole words for any kinds of strings, my
Text: to happening behitond .to.the to curtains of this .<NET> open <NET> sou<NET>rce project.<NET>
now i have tried this to find "<NET>" (without quotes) the whole word with[code]...
Office Automation :: Find Strings That Match A Regular Expression?
Dec 28, 2009Is it possible to use regex with Range.Find.Text or set the Word.Range according to a regex in word automation? I just want to find strings that match a regular expression an manipulate them.
View 2 RepliesRegex - Extract SubString Based On Regular Expression Match
Apr 26, 2012Quick RegExp problem (i hope). I need to identify a sub string from any string based on a regular expression. For Example, take the following strings:
[Code]...
Have A Datatable Which Has 5 Column : Copy Only Its 2 Column In And Save It Into New Datatable?
Mar 15, 2009I have a datatable which has 5 column. It is possible to copy only its 2 column in and save it into new datatable.I used this code but it copies all the 5 column
Code:
Dim qry As DataTable = (From obj In temptable Where obj.Item("Column1") = 0 _
Select obj).CopyToDataTable
i used this one but it is not supported
Code:
Dim qry As DataTable = (From obj In temptable Where obj.Item("Column1") = 0 _
Select obj.item("Column1"), obj.item("Column2")).CopyToDataTable
Regex - .net Regular Expression To Match Two Words Separated By Comma Not Working?
Mar 4, 2010I am pretty good with perl regular expressions but evidently I am at a loss on why this doesn't work.The code below stores "Person Test" in output variable.
im output As String
Dim userName As String = "Test, Person"
Dim re As New Regex("(w+),s(w+)", RegexOptions.Singleline)
output = re.Replace(userName, "$2 $1")
So why doesn't the following code store "#Test##Person#" in output variable.
Dim output As String
Dim userName As String = "Test, Person"
Dim re As New Regex("(w+),s(w+)")
For Each Match As Match In re.Matches(userName)
output &= "#" & Match.ToString & "#"
Next
Regular Expression To Match Alphabetic String And Require At Least One Uppercase And One Lowercase
Jul 20, 2009I am trying to write a regular expression string match in vb.net. The condition that I am trying to implement is that the string should contain only alphabets and must contain atleast one letter of both lower and upper case. i.e AAA-fail, aaa-fail, aAaA-pass.
The regular expression that I have come up with is ^(([a-z]+[A-Z]+)+|([A-Z]+[a-z]+)+)$
Regular Expression To Match Dates In Dd/mm/yy Format And Check For Valid Values
Jun 9, 2010Does anyone have a regurlar expression available which only accepts dates in the format dd/mm/yy but also has strict checking to make sure that the date is valid, including leap year support?
I am coding in vb.net and am struggling to work this one out.
Loop Datatable And Select Checkboxlist Item Based On The Datatable Field Values
Aug 18, 2011I am trying to display value of the field ("UserID") for every row exists in datatable to checkboxlist(make the checkboxlist item selected).
I used for loop, but only the field value from last row of RoleUsers table is selected in the checkboxlist.
Here is my code
Private Sub DisplayRoleUser()
Dim conn As SqlConnection
Dim cmd As SqlCommand
[Code].....
Getting Array Of Selected Datarows From A Datatable.select Into A Datatable?
Apr 8, 2009I am getting array of selected datarows from a datatable.select.I use the commands below to get that array or datarows
Dim foundRows() As DataRow
strExpression =
Here is what I tried.I have looked at examples by MS but they all just write to the screen and I have no interest in that.
For Each rowWork In foundRows
dtWork.Rows.Add(rowWork)
Next[code]....
"LineOfBusiness = 'CPP'"
foundRows = modXchange.pdtWork.Select(strExpression)
Now, I want to place the rows from foundrows into an empty data table.I did what I thought was the obvious but that only returns a bunch of rows with no data
VS 02/03 Datatable - Select Statement And It Will Go To A Datatable Object
Apr 4, 2011I have a select statement and it will go to a datatable object, I would like to do the following
textbox1.text=datatable(first field value)
textbox2.text=datatable(second field value)
textbox3.text=datatable(third field value)
Select The Products That Match A Given Category And Group?
Nov 6, 2010I can't seem to figure out how to write this query properly. I've tried various combinations but nothing's worked yet.Below is the relevant portion of my database model:
I need to select the products that match a given Category and Group, and that match a given Year, Make, Model, submodel. This I've done below: ItemList = From P In gDataContext.Products.Include("Groups").Include("Groups.Category1").Include("LookupYearMakeModels") From G In P.Groups Where G.Category = Cat And G.Grp = Group From Y In P.LookupYearMakeModels Where Y.Year = YMM.Year And Y.Make = YMM.Make And Y.Model = YMM.Model And Y.Submodel = YMM.Submodel Select P
[Code]...
C# - Reset The First Match Row's Column Value To Empty String?
Dec 11, 2009new 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.
Count Of Column Names And Source Expressions Do Not Match
Feb 25, 2012The count of column names and source expressions do not match. [ Column name count = 20,Source expression count = 19 ]
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