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".
I want to get the result 123421, that is after the "\".
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]...
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.
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?
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]....
I am trying to Upload data from Excel file. Transfer data from Excel file to XML file and passed it to Store procedure. And insert the record into database.I also set the timeout for command to zero. when i upload 1 to 500 rows its working fine and when I upload the 10000 rows than its takes time but upload all the users successfully at localhost. But when I upload the code to remote srever,than its only upload upto 300 or 400 rows.After uploading these users it will gives the error of Request Time Out . Even more if I tried to upload 50000 rows its give me the error of 'Maximum Length Exceeded'. Can anyone tell me what the maximum size of Excel sheet to upload the users. How I can get rid of the Request Time Out Issue. How I can Increase the server response time.
View 4 RepliesI have written an asp upload script. It works ok for small files but anything over say 4 meg and it struggles. I keep getting the following error coming up:Maximum request length exceeded. Description:An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.Exception Details: System.Web.HttpException: Maximum request length exceeded.So the above error comes up or it times out. Is there a way to modify the code so that it won't do this? I have included the code that I have written.
[Code]....
If I upload a file that is larger than the configs max request length I get a "Server Response Error: Unknown Server Error" alert popup. It asks if I want to see the response page and if I click "OK" an application error window pops up saying "Maximum request length exceeded." I found this already. [URL] I was unsuccessful at getting that to work.
I also found another SO question (I can't seem to find it now) that was similar. The difference was that the OP had asked how to redirect to an error page. I don't want to do that. The answer was to use a custom error redirect that gets setup in the web.config.
I simply want to absorb the error and do nothing, I'm using the OnClientUploadError event to handle the error via js. Basically, I just don't want this stupid popup message.
One odd thing is that I don't see the error when running the app locally, but I do see the error when I've got the app deployed out to our server. Note I should have mentioned that I know about the config value to set the max request length. Setting it to be very large won't work for this instance. Update So, I'm wondering if this could be something with the IIS settings of our server. It's odd that it doesn't happen locally. what I should be looking for? Most of what I find on the net suggests modifying the machine.config. However, as I said before, I don't simply want to up the allowed size. I am handling the error fine via js, I don't want this alert to show up under any circumstances. Update Well, it sounds like the IIS default limit is 30MB.
When the user tries to upload a file with a size more than 4 MB, the AsyncFileUpload control gives a Confirmation alert (with "OK"/"Cancel" button) with the following message "Server Response error: Maximum Request Lengh Exceeded". But when the User clicks the "OK" button a new window popups and shows the server error and on clicking the cancel button the AsyncFileUpload background color turns red. Here I am not sure why the control is showing a Confirmation alert instead of a simple alert message. Is it possible to change the Confirmation alert with the simple alert message? Basically I don't want the popup window to show the server error as it is happening currently. Also, is there a better way to handle the file size error and show apporiate error message to the users?
View 2 RepliesI have a datagrid and I set up the paging based on how many rows there are like this
With dgBookings
.AllowPaging = True
.PagerStyle.Mode = PagerMode.NumericPages
.PagerStyle.PageButtonCount = 5
.PageSize = 5
End With
Is there a way to set the horizontal-align in the code too I tried adding this
.PagerStyle.HorizontalAlign = Right
and I get this errorArgument not specified for parameter 'Length' of 'Public Function Right(str As String, Length As Integer) As String'.
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'.
Mr ABC|C9006|The white field,
ON|493-493-4939|493-493-4939|YR|Inactive
Note : The delimiter char is pipe sign '|'. The length of second column is not consistent.
I am using encryption/decryption logic from the following link: [URL] Code from this page is working but at times, its throwing an error while decyption as 'Length of the data to decrypt is invalid'. I have a very limited knowledge on this topic so I am no able to troubleshoot it further
View 1 RepliesI encounter "maximum length exceeded" error when I try to upload a document which is 9MB in size. I know that the issue will be solved if httpRuntime maxRequestLength and requestLengthDiskThreshold in web.config are increased but what I am looking for is how I can nicely handle the error and show the message to the user. I did try to use Application_Error event in global ascx but the event is not fired. The reason might be from Server.Transfer from DNN PageBase class's OnError method.
Specifications:
NET 3.5 SP1 (ASP.NET)
IIS 6
DotNetNuke 5.4.4(2)
Need to substring value from DropDownList from position 1 till I reach the first blank character
Example: 'RGWP - West Palm' would be 'RGWP' and 'SBGB3 - Greensboro' would be 'SBGB3'
mid(DropDownList1.Value, 1, ?)
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
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.
View 13 Repliesi 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]....
how to find and replace substring in select query
DATA RELEASE FORM $LSB$DRF$RSB$
What's the regular expression to check if a string starts with "mailto" or "ftp" or "joe" or...
Now I am using C# and code like this in a big if with many ors:
String.StartsWith("mailto:")
String.StartsWith("ftp")
It looks like a regex would be better for this. Or is there a C# way I am missing here?
How to extract specific portion of a string using substring? I have strings
100 - abc - jewellery
20 - def - stationary
I only want the portion between to dashes. (abc,def)
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:
string inputString = "Our email is myname@ourcompany.com.
desired output: myname@ourcompany.com
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 ".......
I need to split the words from random character displayed.For example character like
Textbox1--Textbox2, the mention character have to be split up only by the ('--') and both the characterslike("Textbox1","Textbox2") have to be display in corresponding textboxs.
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.
View 2 RepliesI 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.
Select number,empname,empfathername from emp
where number column is float data type
I need first four dights of number where it consists 10 digits.
num is 1234567890
O/P like to be
1234