CoolInterview.com - World's Largest Collection of Interview Questions & Answers, FAQs, queries, sample papers, exam papers, dumps, what, why, how, where, when questions
Our Services
Get 9,000 Interview Questions & Answers in an eBook.




Get it now !!
Send your Resume to 6000 Companies

Search Interview Questions

Question: Can we use http handlers to upload a file in asp.net?

Answer: Answer is yes. We can use http handlers to upload a file in asp.net.

To perform file upload in ASP.NET, you need to know two classes: the System.Web.UI.HtmlControls.HtmlInputFile class and the System.Web.HttpPostedFile. The first class represents an HTML control that the user uses to select a file on the client side and upload it. The latter represents the uploaded file itself, and an instance of this class is obtained from the HtmlInputFile control. The next two subsections discuss each class in detail.

<% @ Import Namespace="System.IO" %>
<script language="VB" runat="server">
Sub Page_Load(sender As Object, e As EventArgs)

Dim root As String = "C: emp"
Dim filepath As String = Request.Params("file")
If Not filepath Is Nothing Then
If File.Exists(filepath) And filepath.StartsWith(root) Then
Dim filename As String = Path.GetFileName(filepath)
Response.Clear()
Response.ContentType = "application/octet-stream"
Response.AddHeader("Content-Disposition", _
"attachment; filename=""" & filename & """")
Response.Flush()
Response.WriteFile(filepath)
End If
End If

End Sub
</script>



Category ASP.NET Interview Questions & Answers - Exam Mode / Learning Mode
Rating (4.5) By 19 users
Added on 7/27/2011
Views 1102
Rate it!
Question: Can we use http handlers to upload a file in asp.net?


Answer:

Answer is yes. We can use http handlers to upload a file in asp.net.

To perform file upload in ASP.NET, you need to know two classes: the System.Web.UI.HtmlControls.HtmlInputFile class and the System.Web.HttpPostedFile. The first class represents an HTML control that the user uses to select a file on the client side and upload it. The latter represents the uploaded file itself, and an instance of this class is obtained from the HtmlInputFile control. The next two subsections discuss each class in detail.

<% @ Import Namespace="System.IO" %>
<script language="VB" runat="server">
Sub Page_Load(sender As Object, e As EventArgs)

Dim root As String = "C: emp"
Dim filepath As String = Request.Params("file")
If Not filepath Is Nothing Then
If File.Exists(filepath) And filepath.StartsWith(root) Then
Dim filename As String = Path.GetFileName(filepath)
Response.Clear()
Response.ContentType = "application/octet-stream"
Response.AddHeader("Content-Disposition", _
"attachment; filename=""" & filename & """")
Response.Flush()
Response.WriteFile(filepath)
End If
End If

End Sub
</script>

Source: CoolInterview.com



If you have the better answer, then send it to us. We will display your answer after the approval

Rules to Post Answers in CoolInterview.com:-

  • There should not be any Spelling Mistakes.
  • There should not be any Gramatical Errors.
  • Answers must not contain any bad words.
  • Answers should not be the repeat of same answer, already approved.
  • Answer should be complete in itself.

Post your answer here

Inform me about updated answers to this question.
Related Questions
View Answer
What is the exact purpose of http handlers and interfaces?

View Answer
What is the difference between excute query and excute nonquery.?

View Answer
Difference beetween datagrid and datareader?

View Answer
What is the difference between excute query and excute nonquery.?

View Answer
Explain Assemblies?,Difference between Panel and GroupBox?,Differences between ASP and ASP.NET?

View Answer
What is the trace in ASP.NET

View Answer
How do we connect to the 11S if we want to use it instead of the built in Web Server?

View Answer
I am searching a record in datagrid.if i enter any value it display record not found,if the record is not there.
but i enter Apostrophe it is showing error(Cannot perform 'Mod' operation on System.String and System.String)....how to clear this bug.....

View Answer
While searching a record in database it accepts all the letters and special characters.but,i enter Apostrophe it is showing error(Cannot perform 'Mod' operation on System.String and System.String) like this...
how to clear this bug?

View Answer
can i assign datagrid.datasource = datareader
will it work?
will it fill my datagrid with the values

View Answer
What do you mean by authentication and authorization?

View Answer
Whats the use of @ Register directives ?


View Answer
What are different properties provided by Object-oriented systems ? Can you explain different properties of Object Oriented Systems? Whats difference between Association , Aggregation and Inheritance relationships?


View Answer
What is the maximum number of cookies that can be allowed to a web site?

View Answer
What is .net frame work?

View Answer
What is Reflection

View Answer
Whats the significance of Request.MapPath( )

View Answer
What are web parts ?

View Answer
How to handle the exception occured in catch block? (If a exception occurs in catch block,which statement is executed next?)

View Answer
How to compare an xml schema with xml schema?

View Answer

Please Note: We keep on updating better answers to this site. In case you are looking for Jobs, Pls Click Here Vyoms.com - Best Freshers & Experienced Jobs Website.

View All ASP.NET Interview Questions & Answers - Exam Mode / Learning Mode




India News Network
Latest 20 Questions
An offer which is open for acceptance over a period of time is: (a) Cross Offer (b) Counter Offer (c) Standing Offer (d) Implied Offer
Specific offer can be communicated to__________ (a) All the parties of contract (b) General public in universe (c) Specific person (d) None of the above
_________ amounts to rejection of the original offer. (a) Cross offer (b) Special offer (c) Standing offer (d) Counter offer
A advertises to sell his old car by advertising in a newspaper. This offer is caleed: (a) General Offer (b) Special Offer (c) Continuing Offer (d) None of the above
In case a counter offer is made, the original offer stands: (a) Rejected (b) Accepted automatically (c) Accepted subject to certain modifications and variations (d) None of the above
In case of unenforceable contract having some technical defect, parties (a) Can sue upon it (b) Cannot sue upon it (c) Should consider it to be illegal (d) None of the above
If entire specified goods is perished before entering into contract of sale, the contract is (a) Valid (b) Void (c) Voidable (d) Cancelled
______________ contracts are also caled contracts with executed consideration. (a) Unilateral (b) Completed (c) Bilateral (d) Executory
A offers B to supply books @ Rs 100 each but B accepts the same with condition of 10% discount. This is a case of (a) Counter Offer (b) Cross Offer (c) Specific Offer (d) General Offer
_____________ is a game of chance. (a) Conditional Contract (b) Contingent Contract (c) Wagering Contract (d) Quasi Contract
There is no binding contract in case of _______ as one's offer cannot be constructed as acceptance (a) Cross Offer (b) Standing Offer (c) Counter Offer (d) Special Offer
An offer is made with an intention to have negotiation from other party. This type of offer is: (a) Invitation to offer (b) Valid offer (c) Voidable (d) None of the above
When an offer is made to the world at large, it is ____________ offer. (a) Counter (b) Special (c) General (d) None of the above
Implied contract even if not in writing or express words is perfectly _______________ if all the conditions are satisfied:- (a) Void (b) Voidable (c) Valid (d) Illegal
A specific offer can be accepted by ___________. (a) Any person (b) Any friend to offeror (c) The person to whom it is made (d) Any friend of offeree
An agreement toput a fire on a person's car is a ______: (a) Legal (b) Voidable (c) Valid (d) Illegal
"Holiday Packages" announced as an advertisement are an example of _________: (a) Offer (b) Counter Offer (c) Invitation to Offer (d) None of the above
A match fixing contract between a player and a broker is a: (a) Valid Contract (b) Unenforceable Contract (c) Void Contract (d) Illegal Contract
When a bookseller sells a book on cash payment then it is called as ___________: (a) Unilateral Contract (b) Bilateral Contract (c) Executed Contract (d) Executory Contract
____________ agreements are created by situation: (a) Written (b) Oral (c) Void (d) Implied
Cache = 0.046875 Seconds