ASP.NET

Re: How to Capture "ESC" key stroke in ASP.NET web application.

14-Feb-07 1:05

Javascript key press event handling and comparing the key code (which may be different accross browsers)

xiao bin bin14-Feb-07 5:05

xiao bin bin

14-Feb-07 5:05

Thank you very much.

How to save image(.jpg) file in database

MissionSuccess14-Feb-07 0:55

MissionSuccess

14-Feb-07 0:55

I have a .jpg file on my desktop.
How to save it in the database.
so that i can use it in my report.

Thanks

Tech_spidy14-Feb-07 1:49

14-Feb-07 1:49

you have to store the image in binary format. so that u can fetch from database

Tech_spidy

MissionSuccess14-Feb-07 2:01

MissionSuccess

14-Feb-07 2:01

ya i have little bit idea
i want to take the image by using Html fileinputbox control and from the specified path,i want to retrieve only the filename(not path).

and store that file(binary data) in one of my image field.

can u give me some code for doing this......

my code is..................

Private Sub btnSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSave.Click
'Dim str As String = Me.File1.Value()
'If InStr(str, ".jp") > 0 Then
' 'File1.PostedFile.InputStream()
'Else
' Exit Sub
'End If

Dim myStream As Stream
myStream = File1.PostedFile.InputStream
Dim ImgLength As Int64 = File1.PostedFile.ContentLength
Dim ImgBinaryData(ImgLength) As Byte
Dim n As Int64 = myStream.Read(ImgBinaryData, 0, ImgLength)
saveimage(ImgBinaryData)
End Sub
Public Sub saveimage(ByVal mImageFileData As Byte())
Try
Dim myTable As DataTable
Dim myRow As DataRow
conn = New SqlConnection(constr)
conn.Open()
cmd = New SqlCommand("spr_insertImage", conn)
cmd.CommandType = CommandType.StoredProcedure
cmd.Parameters.Add(New SqlParameter("@ImageData", mImageFileData))
cmd.ExecuteNonQuery()
conn.Close()

Catch ex As Exception
lblError.Text = ex.Message
End Try
End Sub

but its not working......
any help

Neeraj Arora14-Feb-07 2:26

Neeraj Arora

14-Feb-07 2:26

Have you used the image datatype in database?

MissionSuccess14-Feb-07 17:40

MissionSuccess

14-Feb-07 17:40

ya i have used image datatype....

but after inserting i m getting <binary> in the database...

ASP:TreeView

Sam Heller13-Feb-07 23:32

13-Feb-07 23:32

Only a quick confirmation of my fears. I have a dynamically created treeview and when user selects a leaf node the tree view gets disabled and configuration of a product occurs. On completition of this the tree view is enabled once more but I would like to unselect the node. Otherwise if the user selects that node again the selectedindexchanged event does not occur as it should.

Is the treeview's selected index setable or just getable?? Thanks

badgrs13-Feb-07 23:44

13-Feb-07 23:44

You could try setting the SelectedNode property to null, that might work (or might delete the node from the tree?)

badgrs14-Feb-07 0:09

14-Feb-07 0:09

No you can't set the SelectedIndex because that property doesn't exist. Try tree.SelectedNode = null, or in your lame VB.NET terms tree.SelectedNode = Nothing. It should null out that reference to the tree node object. If only I had some soap on a rope I could.....

Sam Heller14-Feb-07 0:19

14-Feb-07 0:19

Thanks Badgr for your informative post. I added your code to my project, ran it, and got the following runtime error.

Rory is a c**k sucker

Do you know what this error means. I think it's something to do with Treeview's selectednode property being read only?

badgrs14-Feb-07 1:04

how to create auto complete text box in ASP

14-Feb-07 1:04

tree.SelectedNode.Selected = false;

You can suck me later....

Tech_spidy13-Feb-07 23:24

13-Feb-07 23:24

hi,

how to create an auto complete text in ASP. if possible, provide me sample code.

regards Hmmm | :|

Tech_spidy

Sam Heller13-Feb-07 23:27

13-Feb-07 23:27

What exactly do you mean by auto complete? Where will the auto data come from?

Tech_spidy14-Feb-07 0:10

14-Feb-07 0:10

hi Sam Heller,

auto complete textbox in the sense, in mobile when we are typing 'A' it will start showing the names coming under 'A',like that to do in ASP.
may be set of data we can store and retrive from db

Hmmm | :|

Tech_spidy

Sam Heller14-Feb-07 0:13

14-Feb-07 0:13

Oh i see what you mean. You need to use Javascript, in particular the onkeyup function i think it's called. Then perform some sort of data retrieval upon what was typed in and show it in a positioned div below the the textbox. That's the rough idea anyway. If your using ASP.NET you could always just use the new autocomplete Atlas feature which you can get in the Toolkit

Tech_spidy14-Feb-07 1:46

14-Feb-07 1:46

thanks for ur hint Sam Heller

Tech_spidy

badgrs13-Feb-07 23:32