How Detele The uploaded file from Gridview in C#

Question

Hi Freinds,

I make the application upload the file and download from database on Gridview its working fine but when i tried to delete the file using rowdeleting in gridview its showing error like

"Index was out of range. Must be non-negative and less than the size of the collection.
Parameter name: index"

Sanjeeb Lenka · Answer

hi, check once using varbinary(8000)

Rocky Rocky · Answer

Hi, Oh Thanks You Friend in web application requirement is create table travel_claim ( request_id int identity , Deaprturedate datetime, From_place varchar(20), to_place varchar(20), Lodge varchar(20), Food Varchar(20), Dailyclaim varchar(20) ) My aspx page: departuredate=(jquerydatepicker) from =textbox to =textbox Lodge = textbox Food = textbox dailyclaim = textbox ADD(after the button entire details ll display on gridview below ) if i possible make a Upload content in Folder along with gridview? in that gridview row can be deleted depends on the request_id as the same i can able delete the uploaded content alond with that id? kindly do the need full?

Sanjeeb Lenka · Answer

hi, i afraid it will not support. from my experience don't store the files in to database. store it in folder in your project and sve the path in database.

Rocky Rocky · Answer

Hi Friend, varbinary(max) ll work on mssql2000, i ve that batabase only

Sanjeeb Lenka · Answer

hi, check the attached sample it worked for me. just change the connection string in web.config and make data column to varbinary(MAX).

Rocky Rocky · Answer

Hi , Its accepting with in 7 kb files oly . i checked on net varbinary allows up to 2GB protected void Upload(object sender, EventArgs e) { string filename = Path.GetFileName(FileUpload1.PostedFile.FileName); string contentType = FileUpload1.PostedFile.ContentType; Stream fs = FileUpload1.PostedFile.InputStream; BinaryReader br = new BinaryReader(fs); byte[] bytes = br.ReadBytes((Int32)fs.Length);///// i thnk may be here problem conn.Open(); string query = "insert into tblFiles values (@Name, @ContentType, @Data)"; SqlCommand cmd = new SqlCommand(query, conn); cmd.Parameters.AddWithValue("@Name", filename); cmd.Parameters.AddWithValue("@ContentType", contentType); cmd.Parameters.AddWithValue("@Data", bytes); cmd.ExecuteNonQuery(); conn.Close(); BindData(); Response.Redirect(Request.Url.AbsoluteUri); } how to do it?

Sanjeeb Lenka · Answer

hi, change it to varbinary(MAX) and check once.

Rocky Rocky · Answer

Hi , Data =varbinary(3000) i making the travel claim like the details departuredate=(jquerydatepicker) From = textBox To =TextBox Lodge=textbox foodBill=textbox Daily Claim=textbox Bill references=textbox Upload(button) Add(After press entire details Shwn On GridView) That purpose only i m asking these

Sanjeeb Lenka · Answer

hi, what is the datatype of Data in sql server. and one question why you are storing total file to database as it will waste database space and memory.

Rocky Rocky · Answer

Hi, I thnk cmd.Parameters.AddWithValue("@Data", bytes); in Upload control these line is the problem its accepting size only bytes format. if the size is kb,mb means wont accepted it and giving that error. String or binary data would be truncated. The statement has been terminated.

Sanjeeb Lenka · Answer

hi, what error msg you are getting plz share.

Rocky Rocky · Answer

Hi Firend, After adding The Line also Its Giving same error Message

Sanjeeb Lenka · Answer

hi, your code looks error free. my be this error coming from file upload control. file upload control allows maximum file size is 4MB for that reason if we upload file size larger than 4MB we will get error. so put this line in your web.config within system.web > httpRuntime executionTimeout = " 9999 " maxRequestLength = " 2097151 " /> check and reply. if get any error msg plz post that msg

Rocky Rocky · Answer

hi Freind, i attached My entire code for Upload .lete me back why its not accepting pdf and .jpg files

Sanjeeb Lenka · Answer

hi, plz share your full code. means on upload it not accepting pdf file.

Rocky Rocky · Answer

Hi, its not accepting Pdf Files also..... wat was the problem here

Sanjeeb Lenka · Answer

hi, thats why i am asking for your grid code. happy coding.

Rocky Rocky · Answer

Hi Friends, Oops I miss the DatakeyNames in My GridView so Only so Its that Error message, When I tried to upload .jpg format String or binary data would be truncated. The statement has been terminated. these error ll be come i added My entire code Let me know

Sanjeeb Lenka · Answer

hi, plz share your grid aspx design code.

Rocky Rocky · Answer

Hi , I Atttached mY Gridview Row Deleting let me know