DataSource Controls :: Pull A SubString From A Linq Datasource But Can't Use INTs Per .SubString(int, Int)
Feb 5, 2010
I need to pull a SubString from a Linq Datasource, but can't use INTs per .SubString(int, int) I have strings such as xxxx.xxxx.xxxxx.AAAA.xxxx.xxxx.xxxx.xxx and I need to pull AAAA out. the preceeding x's will be varying lengths, so I can't use a static int. What I do know is that there will be a static number of periods (.) leading up to the AAAA. I can't figure out how to use the SubSting with characters rather than indexs. This is what I have so far:
[Code]....
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Jan 27, 2010
I have an SQL table which looks similar to the following:
Title | Author | Tags
'title1' 'author1' 'horror, steven king, clowns'
'title2' 'author2' 'childrens, roald dahl, chocolate'
Let's say I wanted to find the name of a book that has the tag 'clowns' in it...how can I do this? 'clowns' is a substring of the tag for 'title1'...but how do I search for substrings? I have tried to use the "LIKE" keyword but obviously it doesn't work in this situation.
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Sep 10, 2010
I have a gridview that has a field called TargetDate which is formatted as dd/mm/yyyy. I want to substring the numbers out of the date. So basically remove the '/'. How do I do that? can't just substring(0,2) because sometimes the date is single digits, sometimes 2 digits. I am using vb.net.
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May 25, 2010
For context: First of all, I am new to LINQ, as I have been using SubSonic for quite some time now.
I have two tables, Users, and Affiliates. They both have a very typical schema. The FK that joins them is the UserId field, which is in the Affiliates table. I want to create a LINQ query that pulls the Username from the Users table using the AffiliateId value. The AffiliateId is a primary key of the Affiliates table.
I have tried to accomplish this using many variations of the following code:
[Code]....
In the above query, I expect to get a single row result set. However, I instead receive the entire table of results.
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Jan 9, 2010
The following is a line of huge .txt file and i am reading it line by line. I need the value of second column. In this line, I need to extract 'C9006'.
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May 7, 2010
Need to substring value from DropDownList from position 1 till I reach the first blank character
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mid(DropDownList1.Value, 1, ?)
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May 10, 2010
I am binding some data to control, but want to limit the number of character of a specific field to a 30 first characters. I want to do it, if it's possible, on aspx page.
I tried this:
Text='<%# String.Format("{0}", Eval("Title")).Substring(0,30) %> '
But got this error: Index and length must refer to a location within the string. Parameter name: length
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Dec 6, 2010
I am trying to use substring in c# code.
This is the code i have used:
[Code].... I am getting the error as: "Length cannot be less than zero.
Parameter name: length"} System.Exception {System.ArgumentOutOfRangeException".
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May 24, 2010
I want to display first 200 characters of the content put into database from an html editor.I am not able to use substring since the ocntent contains html tags .If I take the plain text, I will loose all the formatting and font styles.
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Mar 27, 2011
i take the text of the html of a site and want to select a substring of the whole text. the text is something like this
[Code]....
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May 9, 2010
Code:
01.If InStr( Request.ServerVariables("HTTP_REFERER"), "google") > 0 Then
KeyURL = Request.ServerVariables("HTTP_REFERER")
' Remove all up to q=
KeyLen = Len(KeyURL)
kStart = InStr( KeyURL, "q=" )
kStart = kStart + 1
KeyRight = KeyLen - kStart
Keyword = Right( keyURL, KeyRight )
[code]...
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Nov 19, 2010
I am using Substring method on a string variable.
Code:
fileName.Substring(67, 18)
I get this error
System.ArgumentOutOfRangeException: Index and length must refer to a location within the string.
Parameter name: length
Don't know the reason. I debugged a lot and going crazy about this error.
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Apr 1, 2010
I have an intranet application which I have been putting together with ASP.NET. I have been using VWD 2010 Beta 2 which has been fine so far. But when I go to deploy the work i've done so far to a local IIS a variable which is supposed to be; being filled with the value from HttpContext.Current.User.Identity.Name is not being filled i.e. an error occurs when substring goes out of bounds. I believe it is because the HttpContext.Current.User.Identity.Name is not putting a value into the string variable 'username'. But it is quite strange as when I run the website project within VWD 2010 it works fine without any errors. IIS is set to Integrated Windows Authentication and Annonomous Users are allowed.
public static String getName()
{
// Store username
String name = HttpContext.Current.User.Identity.Name;
// Truncate username from domain name
String[] substring = new String[1];
// Define the token at which the string will be broken at
char[] token = { '\' };
// Split the string
substring = name.Split(token);
// Return the username
return substring[1];
}
Any ideas why when running the exact same files from local IIS gives me errors?
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Sep 22, 2010
how to find and replace substring in select query
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May 1, 2010
What's the regular expression to check if a string starts with "mailto" or "ftp" or "joe" or...
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It looks like a regex would be better for this. Or is there a C# way I am missing here?
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Apr 28, 2010
How to extract specific portion of a string using substring? I have strings
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Sep 22, 2010
I want to find a substring (email) in a large text using Regex.
just want to return the first valid email that is found from the input text:
example:
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this is the Regex pattern i've used: ^[A-Z0-9._%+-]+@[A-Z0-9.-]+.[A-Z]{2,4}$
- is this pattern correct?
Code:
private static void DumpHRefs(string inputString)
{
Match m;
string HRefPattern = @"^[A-Z0-9._%+-]+@[A-Z0-9.-]+.[A-Z]{2,4}$";
m = Regex.Match(inputString, HRefPattern,
RegexOptions.IgnoreCase | RegexOptions.Compiled);
while (m.Success)
{
Console.WriteLine("Found email " + m.Groups[1] + " at ".......
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Mar 30, 2010
I need to split the words from random character displayed.For example character like
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Mar 7, 2013
Select number,empname,empfathername from emp
where number column is float data typeÂ
I need first four dights of number where it consists 10 digits.
num is 1234567890
O/P like to be
1234
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Jan 22, 2010
I want to pull a random record from the db.
Here what I have so far.
Dim RandomNumber As New Random()
Dim num As Integer
num = RandomNumber.Next(1, 75).ToString
Try
Dim Cnn As New OleDb.OleDbConnection("File Name=E:WebRHIUDLShelf_Life.UDL;")
Dim da As New OleDb.OleDbDataAdapter("SELECT tbMaster_List.dbMFG, tbMaster_List.dbDescription, tbInStock.ID, tbInStock.dbMFG_Lot_Code, tbInStock.dbDateReceived, tbInStock.dbDateOpened, tbInStock.dbExpireDate, tbInStock.dbLocation FROM (tbInStock
INNER JOIN tbMaster_List ON tbInStock.LnkToMaster = tbMaster_List.ID) ", Cnn)
Cnn.Open()
Dim dtt As New DataTable()
da.Fill(dtt)
This is were I am stuck.
I need to filter all rows out except where row(index) = num
Me.GridView4.DataSource = dtt
Me.GridView4.DataBind()
Catch
Label1.Text = "Error: Unable to Pull Data"
End Try
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Jun 10, 2010
I was put in charge of a database that has no source control, and all work was done in the database. I want to pull all the objects (stored procs, views, tables) from the database, and add to my new source control.
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Jan 20, 2010
How would you pull only the current month data from SQL?
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Feb 3, 2010
I have location #s, date, time, the sales amount, and tax in a excel file. The system pulls sales numbers throughout the day from each store location and places the total sales and tax numbers along with the polling date into a file.
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[code]....
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May 27, 2010
On a test page, I successfully created a google map that pulls both marker and infoWindow information from an XML file. I did this just to get a feel for working with the API. It works fine. However, I do have a SQL database that has this information in it already. This database is updated behind the scenes regulary via a webservice.
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Feb 18, 2010
I have got an issue while using LINQ 2 SQL.
public IEnumerable<Customer> GetCustomers()
{
Table<Customer> custObject = context.Customers;
IEnumerable<Customer> filteredCustList = from customer in custObject
select customer;
filteredCustList;
}
GridView2.DataSource = utilLinqClass.GetCustomers();
GridView2.DataBind();
(no errors at build time or at compile time) Error I am getting is: An attempt to attach an auto-named database for file App_Dataaspnetdb.mdf failed. A database with the same name exists, or specified file cannot be opened, or it is located on UNC share.
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