Re: Serialization in asp.net - ASP.NET Discussion Boards

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Serialization in asp.net

Malayil alex6-Jul-07 7:55

Malayil alex

6-Jul-07 7:55

Hi,

Hello friends, can any body tell me what is serialization and what is the use of that..

alex.

Re: Serialization in asp.net

Not Active6-Jul-07 8:10

Not Active

6-Jul-07 8:10

Serialization is used to return results from Google, try it.

only two letters away from being an asset

Re: Serialization in asp.net

Tarik Guney6-Jul-07 12:03

Tarik Guney

6-Jul-07 12:03

On Putting a object instance into session or something like that...

Re: Serialization in asp.net

Sathesh Sakthivel6-Jul-07 15:35

Sathesh Sakthivel

6-Jul-07 15:35

Serialization[^]

Regards,

Satips. Rose | [Rose]

Don't walk in front of me, I may not follow;
Don't walk behind me, I may not lead;
Walk beside me, and just be my friend. - Albert Camus

Re: Serialization in asp.net

Not Active6-Jul-07 16:34

Not Active

6-Jul-07 16:34

So after 7 hours you thought you would post the google search for him. Roll eyes | :rolleyes:

only two letters away from being an asset

Re: Serialization in asp.net

Sathesh Sakthivel6-Jul-07 16:50

Sathesh Sakthivel

6-Jul-07 16:50

hey Mark, I got from bed now only. now here it is early morning.

I just logged in to cp while i am checking the mail.

So replied to him.

Regards,

Satips. Rose | [Rose]

Don't walk in front of me, I may not follow;
Don't walk behind me, I may not lead;
Walk beside me, and just be my friend. - Albert Camus

Re: Serialization in asp.net

Not Active7-Jul-07 2:33

Not Active

7-Jul-07 2:33

Try reading the other replies first. If you have something of value to add, then reply.

only two letters away from being an asset

Re: Serialization in asp.net

Tealmoon12-Jul-07 18:00

Tealmoon

12-Jul-07 18:00

Mr. MVP needs to check his attitude at the door.

only four letters away from being an asshol*

Video streaming

UUmamahesh6-Jul-07 5:50

UUmamahesh

6-Jul-07 5:50

I am doing a prototype webpage where i want to stream a video file from a sqlserver database. I already have a table with video files. I want to convert the file into a .flv file and stream it to the web page. I would really like to do it without creating the file in a file system, I mean i would like to do it on demand,i.e convert the file to .flv type and stream it when requested. I have never done any video streaming of any kind. I would appreciate any input and references,

thanks and best regards

Mahesh

Re: Video streaming

Tarik Guney6-Jul-07 12:06

Tarik Guney

6-Jul-07 12:06

What about it :
http://www.google.com/search?hl=en&rls=com.microsoft:*&pwst=1&sa=X&oi=spell&resnum=0&ct=result&cd=1&q=Video+Streaming+in+Asp.net+from+database&spell=1[^]

Hope it helps Smile | :)

Setting a column inside of a gridview to a link

aqzman_6-Jul-07 5:20

aqzman_

6-Jul-07 5:20

Hey guys!

I've been Googling for about an hour now, and I can't seem to find any anwsers, hopefully someone here is able to help me.

What I want to do is set text on a gridview as a link to a local harddrive. I've provided a link to a picture of what I've set up, and under the "Files" column is where I'd like the link to be, so users can just right click and "Save Target As..." to get the file.

http://image.bayimg.com/ca/dl/ga/ab/g.jpg

Thanks,
aqzman

Re: Setting a column inside of a gridview to a link

ToddHileHoffer6-Jul-07 5:39

ToddHileHoffer

6-Jul-07 5:39

You need to have the folder must be part of the website in IIS. If it is then a link to file should work.

I didn't get any requirements for the signature

Re: Setting a column inside of a gridview to a link

aqzman_6-Jul-07 6:15

aqzman_

6-Jul-07 6:15

Is this what you're talking about?

http://image.bayimg.com/ia/dl/ia/ab/g.jpg

Also, thanks for the reply!

Re: Setting a column inside of a gridview to a link

ToddHileHoffer6-Jul-07 6:34

ToddHileHoffer

6-Jul-07 6:34

Yeah, just set that as the navURL or whatever the property is of the ASP Hyperlink control.

I didn't get any requirements for the signature

ListBox Multiple Selection

ASPnoob6-Jul-07 5:07

ASPnoob

6-Jul-07 5:07

Hi, I've used a for-next loop to determine the item(s) of a listbox that the user selects and to insert the text of the selected item(s) into a database table like the following.

For i = 0 To ListBox1.Items.Count - 1<br />
            If ListBox1.Items(i).Selected Then<br />
                cmdInsert.Parameters.Add("@docDate", OdbcType.Date)<br />
                cmdInsert.Parameters("@docDate").Value = DateTime.Now<br />
<br />
                cmdInsert.Parameters.Add("@docTitle", OdbcType.VarChar, 30)<br />
                cmdInsert.Parameters("@docTitle").Value = txtFileTitle.Text<br />
<br />
                cmdInsert.Parameters.Add("@docType", OdbcType.VarChar, 30)<br />
                cmdInsert.Parameters("@docType").Value = StrFileType<br />
<br />
                cmdInsert.Parameters.Add("@docContent", OdbcType.Binary, 800)<br />
                cmdInsert.Parameters("@docContent").Value = arrFile<br />
<br />
                cmdInsert.Parameters.Add("@Professions", OdbcType.VarChar, 30)<br />
                cmdInsert.Parameters("@Professions").Value = ListBox1.Items(i).Text<br />
             <br />
             End If<br />
       Next<br />

The problem I'm getting is that if two items were selected, only the 2nd item is inserted. Please take a look to see what I did wrong, thank you in advance for your help.

Re: ListBox Multiple Selection

ToddHileHoffer6-Jul-07 5:37

ToddHileHoffer

6-Jul-07 5:37

Well, you need to put

conn.open<br />
cmdInsert.executenonquery<br />
conn.close

inside your loop, otherwise you are only inserting one record.

I didn't get any requirements for the signature

Log-in Datareader problem

munklefish6-Jul-07 4:16

munklefish

6-Jul-07 4:16

Hi,

If anyone can walk me through or at least give an example of how i can tackle this problem i will be very grateful.

Basically i am trying to create a log-in for a website in .Net 2.0 using SQL2005. Using a DataReader (using controls in VS2005) i have the datareader check for the occurance of a matching record based on username and password.

However i need to make sure only one matching record is found and then get all this users data adplace it into a cookie or session, and update the page accordingly.

How do i check only one matching record is found?

Please dont direct me to some complicated lengthy Microsoft solution page as i never find these to be helpful. I could really do with someone explaining this to me as best as possible.

Thanks in advance.
mike

Re: Log-in Datareader problem

sathesh pandian6-Jul-07 4:45

sathesh pandian

6-Jul-07 4:45

Dear mike,

you can use the following method.

dim connnstring as string

connectionstring=" you have to put your connection string here"

it is like provider=microsoft.oledbprovider.......

dim conn as new sqlconnection(connectionstring)

conn.open

dim querystring as string

querystring="Select Username,Passowrd from userTable"

You have to put your table name and columns there

dim cmd as new sqlcommand(querystring,conn)

dim reader as new sqldatareader=cmd.executereader

while reader.read

if reader(0)=UserName and reader(1)=PassWord Then

Session("UserName")=UserName

End if

end while

reader.close

conn.close

All The Best

Sathesh Pandian

Re: Log-in Datareader problem

Not Active6-Jul-07 7:57

Not Active

6-Jul-07 7:57

sathesh_pandian wrote:
while reader.read

And how does this limit it to one record being returned from the database?

sathesh_pandian wrote:
if reader(0)=UserName and reader(1)=PassWord Then

Very poor technique.

only two letters away from being an asset

Re: Log-in Datareader problem

kubben6-Jul-07 4:48

kubben

6-Jul-07 4:48

Have you considered using the asp.net membership stuff? There are login controls that you can use. There is a sql script that needs to be run that will create all of the tables stored procedures etc. in your sql database. I think it would make a lot of sense to use something that works verses trying to write it your self. You could also use the Profile object to store stuff you might normally store in a cookie.

I know you said you don't want links, but you have to start somewhere:
http://msdn2.microsoft.com/en-us/library/yh26yfzy.aspx[^]

This one is one profile:
http://msdn2.microsoft.com/en-us/library/d8b58y5d.aspx[^]

Ben

Re: Log-in Datareader problem

Not Active6-Jul-07 8:01

Not Active

6-Jul-07 8:01

As kubben replied uisng the builtin membership provider stuff is easy and will take care of this problem.

However if you need to authenticate against a custome database then just check the number of records returned.

DataTable dt = Authenticate(username, password);<br />
if( dt.rows.count > 1 )<br />
   return false;<br />
else<br />
   return true;

only two letters away from being an asset

select specific column from datatable

playout6-Jul-07 4:15

playout

6-Jul-07 4:15

Hi,

I have a datatable filled with data I get from a sql query and database. Has the following columns in:

EmployeeID
EmployeeName
EmployeeSurname
EmployeeSickLeaveDate

I just want to select all the data from column "EmployeeName" in the datatable. By that, I only want to populate a new datatable with "EmployeeName"

How will this be possible. I tried using datatable.select(), but no luck, or I am not using it correct.

Re: select specific column from datatable

kubben6-Jul-07 4:41

kubben

6-Jul-07 4:41

I would try this:

I am assuming you are using vb.net
Dim dt DataTable = firstDataTable.Clone()

'This removes EmployeeID
dt.Columns.RemoveAt(0)
'This removes EmployeeSurname
dt.Columns.RemoveAt(1)
'This removes EmployeeSickLeaveDate
dt.Columns.RemoveAt(1)

So now you have a new dataTable with only one column.

Hope that helps.
Ben

Re: select specific column from datatable

playout6-Jul-07 6:19

playout

6-Jul-07 6:19

Thank you Ben,

I think this method will help me a lot. Will try it over the weekend.

Regards
Playout

Re: select specific column from datatable

Not Active6-Jul-07 8:03

Not Active

6-Jul-07 8:03

Provided of course that the ordinal of the columns doesn't change.

This is a bit brute force and not really necessary.

only two letters away from being an asset

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