Re: Open Byte Array and Save from Browser - ASP.NET Discussion Boards

Re: crystal report ask for login and password on pc-2

sashidhar30-Sep-09 21:26

30-Sep-09 21:26

Open the Crystal report with Ms Visual Studio then CHeck it in design View
.A Popup will be Shown Then uncheck Integrated Security add the username and password.If Not Check the preview of the crystal report it will not display.Make Sure Your preview is displayed.

MyFirstArticlePublished: MenuControlSelectedItem
Why Do Some People Forget To Mark as Answer .If It Helps.

how to develop discussion forum

Member 311322530-Sep-09 20:04

Member 3113225

30-Sep-09 20:04

hello all,

i want to know how to develop discussion forum in asp.net 2.0

can we use treeview control or else???
i want to develop discussion forum similar to Codeproject forum.

Thanks in advance.

Regards
Praveen

Re: how to develop discussion forum

Abhijit Jana30-Sep-09 20:08

Abhijit Jana

30-Sep-09 20:08

Member 3113225 wrote:
can we use treeview control or else???
i want to develop discussion forum similar to Codeproject forum.

This is an similar control like code project discussion forum
JumpyForum: Inspired by Code Project Forum / Discussion / Message board[^]

Hope this will help you Big Grin | :-D

Abhijit Jana | Codeproject MVP
Web Site : abhijitjana.net
Visit My Latest Article : Beginner's Guide : Exploring IIS 6.0 With ASP.NET

Re: how to develop discussion forum

Member 311322530-Sep-09 20:27

Member 3113225

30-Sep-09 20:27

Thanks Abhijit
this article really solved my problem. thanks again. Smile | :)

Re: how to develop discussion forum

Abhijit Jana30-Sep-09 20:34

Abhijit Jana

30-Sep-09 20:34

Welcome

Abhijit Jana | Codeproject MVP
Web Site : abhijitjana.net
Visit My Latest Article : Beginner's Guide : Exploring IIS 6.0 With ASP.NET

Re: how to develop discussion forum

sashidhar30-Sep-09 20:53

sashidhar

30-Sep-09 20:53

Member 3113225 wrote:
Thanks Abhijit
this article really solved my problem. thanks again.

Then Mark it as Answer

MyFirstArticlePublished: MenuControlSelectedItem
Why Do Some People Forget To Mark as Answer .If It Helps.

Open Byte Array and Save from Browser

Danang Prakoso30-Sep-09 19:25

Danang Prakoso

30-Sep-09 19:25

Hello Guys...
I have some problem

I had a array of byte all ready
call it xByte
xByte contain single file of any type which had been converted on server into byte()

I had link button
i want to when i click it the browser will download the file
just like download file dialog....

how i manage to do that...

please help me
i really appreciate it....
Thanks......

Re: Open Byte Array and Save from Browser

sashidhar30-Sep-09 20:09

sashidhar

30-Sep-09 20:09

I think..! You Have to Specify the Content type And try to display THt.

For Image

byte[] arrContent = null;
       //dr["Photo"] is Byte Content
     arrContent = (byte[])dr["photo"];
     int length = arrContent.Length;
     Response.ContentType = "image/JPEG";
     if (length!=0)
     Response.OutputStream.Write(arrContent, 0,length);
     Response.End();

or
Any File You have zip it and give them a download option..! Cool | :cool:

MyFirstArticlePublished: MenuControlSelectedItem
Why Do Some People Forget To Mark as Answer .If It Helps.

Re: Open Byte Array and Save from Browser

Abhijit Jana30-Sep-09 20:11

Abhijit Jana

30-Sep-09 20:11

sashidhar wrote:
Response.End();

You should be very careful while using Response.End() in your Code !!! Smile | :)

Abhijit Jana | Codeproject MVP
Web Site : abhijitjana.net
Visit My Latest Article : Beginner's Guide : Exploring IIS 6.0 With ASP.NET

Re: Open Byte Array and Save from Browser

sashidhar30-Sep-09 20:22

sashidhar

30-Sep-09 20:22

Thx For Your Suggestion Rose | [Rose]

Abhijit Jana wrote:
Response.End()

Is There any Drawbacks?Can You Let Me Know..! Thumbs Up | :thumbsup:

MyFirstArticlePublished: MenuControlSelectedItem
Why Do Some People Forget To Mark as Answer .If It Helps.

Re: Open Byte Array and Save from Browser

Abhijit Jana30-Sep-09 20:34

Abhijit Jana

30-Sep-09 20:34

The Response.End() method causes the Web server to stop processing for further request .

Abhijit Jana | Codeproject MVP
Web Site : abhijitjana.net
Visit My Latest Article : Beginner's Guide : Exploring IIS 6.0 With ASP.NET

Re: Open Byte Array and Save from Browser

N a v a n e e t h30-Sep-09 20:58

N a v a n e e t h

30-Sep-09 20:58

Abhijit Jana wrote:
The Response.End() method causes the Web server to stop processing for further request .

That is not true. All it does is stop execution of page and return the buffered output. It doesn't affect further requests.

Navaneeth

How to use google | Ask smart questions

Re: Open Byte Array and Save from Browser [modified]

Abhijit Jana30-Sep-09 21:28

Abhijit Jana

30-Sep-09 21:28

Yes, I want to mean that only. "Stop Processing of Further Request". Poke tongue | ;-P

. And it is understandable that it will return the buffer out put as he is writting it on output stream !!

Abhijit Jana | Codeproject MVP
Web Site : abhijitjana.net
Visit My Latest Article : Beginner's Guide : Exploring IIS 6.0 With ASP.NET

modified on Thursday, October 1, 2009 3:34 AM

Re: Open Byte Array and Save from Browser

Nisha Agrawal30-Sep-09 20:12

Nisha Agrawal

30-Sep-09 20:12

u can use this code piece for it.

Response.Buffer = true;
Response.AddHeader("Content-Disposition", "attachment;filename=" + strFileName);
Response.ContentType = "application/vnd.ms-excel"; // place actual application type here.
Response.Charset = "utf-8";
Response.BinaryWrite(xByte);
Response.End()

;

this code piece will present a open/save/cancel dialog.

Re: Open Byte Array and Save from Browser

Danang Prakoso1-Oct-09 16:18

Danang Prakoso

1-Oct-09 16:18

Hey nisha
thank for your guidance

sorry to bother you again
but what if we dont know what the file type is
because all user can upload any kind of file type
instead of display it onto browser
i just want to display download file dialog...
On your code there was ms.excel type...
What if i just know the extention
not the content type

im sorry for my unknown

Re: Open Byte Array and Save from Browser

Nisha Agrawal1-Oct-09 20:27

Nisha Agrawal

1-Oct-09 20:27

So u are allowing users to download file that is uploaded by themselves. In this case there are two possibilities , either u are storing the file at hard disk or in database.

CASE 1 Saving File At HARD DISK
In this u can identify the Application type via file type. I means whether it's a pdf , doc, txt, xls or .jpg. Just put a Switch case over there and do a dance of joy.

CASE 2 Saving File Content in DATABASE
In this case u need to store the Application type in the database while adding record for that file. Again u have a file type so get the Application type using switch case.

Re: Open Byte Array and Save from Browser

Danang Prakoso5-Oct-09 16:21

Danang Prakoso

5-Oct-09 16:21

CASE 1 Indeed

I save the filename and type in separates data...

Re: Open Byte Array and Save from Browser

Danang Prakoso1-Oct-09 17:01

Danang Prakoso

1-Oct-09 17:01

I forget to tell you
im using ajax enabled website

[Message Deleted]

11Developer30-Sep-09 19:23

11Developer

30-Sep-09 19:23

[Message Deleted]

Re: Captcha Image on HTML by ASP code

Abhijit Jana30-Sep-09 20:09

Abhijit Jana

30-Sep-09 20:09

11Developer wrote:
I want to place captcha image on HTML page by using ASP code not ASP.net code.

Then what you are doing over here ? This ASP.NET Forum. Better ask this query at Web Development Forum !

Abhijit Jana | Codeproject MVP
Web Site : abhijitjana.net
Visit My Latest Article : Beginner's Guide : Exploring IIS 6.0 With ASP.NET

Re: Captcha Image on HTML by ASP code

sashidhar30-Sep-09 20:16

sashidhar

30-Sep-09 20:16

11Developer wrote:
I want to place captcha image on HTML

Please Ask Your Question in different Forum ..! Cool | :cool:

This Is Asp.net forum

MyFirstArticlePublished: MenuControlSelectedItem
Why Do Some People Forget To Mark as Answer .If It Helps.

Re: [Message Deleted]

Abhijit Jana30-Sep-09 20:47

Abhijit Jana

30-Sep-09 20:47

It seems, you have joined CP today !! So please read forum guide line before you post anything. Everybody here to help you out !! Deleting messges, down voting message does not help you !!

Please read forum guide line !!!

Abhijit Jana | Codeproject MVP
Web Site : abhijitjana.net
Visit My Latest Article : Beginner's Guide : Exploring IIS 6.0 With ASP.NET

Setting value of HiddentField server side while using UpdatePanel

Ramon Enachescu30-Sep-09 16:34

Ramon Enachescu

30-Sep-09 16:34

Hi all!

I looked and I searched and I came out empty... I am trying to do what should be a straightfoward task: update the value of a HiddenField and use that client side in a script. Here is the scenario:

- User goes to a page that has a Cancel button
- If the user changes anything at all on the page (adds items to a grid, changes textfields, etc.) I want the Cancel button to return a confirmation ("Are you sure you want to continue? Your changes will be lost.")

The elements on the page (textboxes, grid, etc) are all in an AJAX UpdatePanel. The Cancel button calls a javascript function which checks the value of a HiddenField to figure out whether to display the confirmation or not.

So, here's what I have so far:

My Cancel button:

<asp:ImageButton ImageUrl="~/images/ButtonCancel.png" style="float:right" OnClientClick="return RequestMessage();"
                            ID="btnCancel" CssClass="button" runat="server" OnClick="btnCancel_Click" 
                            CausesValidation="False" />

The javascript function behind the OnClick event:

<script type="text/javascript">
      function RequestMessage()
      {
        if($get("ctl00_BodyPH_ConfirmationMsg").value=="true")
        {
            return confirm('Are you sure you want to continue? Your changes will be lost.')
        }
        else
            return true;
      }
    </script>

The HiddenField is defined inside the UpdatePanel:

<asp:HiddenField runat="server" ID="ConfirmationMsg" Value="true" />

And it is registered in the protected override void Render(HtmlTextWriter writer) event:

ScriptManager.RegisterHiddenField(this.Page, ConfirmationMsg.ClientID, "false");

When I look at the code generated on the client side the HiddenField seems to be correctly registered as such:

<input type="hidden" name="ctl00_BodyPH_ConfirmationMsg" id="ctl00_BodyPH_ConfirmationMsg" value="false" />

So everything is good so far. The problem comes when I try to change the value of the HiddenField from various events, such as a simple TextBox_TextChanged event:

protected void txtCustomerID_TextChanged(object sender, EventArgs e)
{
    ConfirmationMsg.Value = "true";
    loadCustomerInfo(false);
}

The event fires but the value for the HiddenField never changes client side, it always stays "false". How can I updated this value throughout the code so that the confirmation will show correctly?? Or am I going about this the wrong way? Is there a better way of achieving the same task another way?

Thanks very much for any insight into this!

Re: Setting value of HiddentField server side while using UpdatePanel

N a v a n e e t h30-Sep-09 17:42

N a v a n e e t h

30-Sep-09 17:42

IMO, server side events should not be used like you did. This can be achieved with a client side script. Hook JS OnChange event handler to the text box and change the hidden text box value inside that.

If you are handling this on client side, you don't even need a hidden text box. A JS variable declared in a script block should do the trick. It acts as a public variable available to the whole page. When text changes, just set the value into this variable.

Ramon Enachescu wrote:
if($get("ctl00_BodyPH_ConfirmationMsg").value=="true")

This is bad. You should not hard code client id into the code. Either use ClientId property of the control or $get("ConfirmationMsg", parent_control_id).

Smile | :)

Navaneeth

How to use google | Ask smart questions

Re: Setting value of HiddentField server side while using UpdatePanel

Ramon Enachescu30-Sep-09 18:00

Ramon Enachescu

30-Sep-09 18:00

Thanks Navaneeth,

The reason I went with the server side event is that I have to update this flag from many places, so instead of writing JS for a whole bunch of events (text changed, button clicks, grid events [adding/deleting/updating], etc) I'd rather just set a tiny little flag when I need to Smile | :)

. I can't be the first one looking for functionality like this...

And yes sir, no hardcoding, that's there cause I'm still trying out things and this is by no means final code but thanks for noticing Smile | :)

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.