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Re: Formatting data in a GridView

thatraja24-Jun-11 8:54

thatraja

24-Jun-11 8:54

Yes.
Here you go
How to format GridView Rows/Columns in Design/Run time[^]

thatraja

My Tip/Tricks
My Dad had a Heart Attack on this day so don't...

Re: Formatting data in a GridView

mjackson1124-Jun-11 9:36

mjackson11

24-Jun-11 9:36

I looked at this before. We don't know the column names (they are dates) so I cannot access the columns using Cell["Label"]. I tried to use an index to loop thru the cells but that causes the thing to eliminate all but the first row.

I must say Microsoft's documentation for this stuff is appalling.

Thx

Mark Jackson

<code>
for (i = 1; i < e.Row.Cells.Count; i++)
{
e.Row.Cells[i].Text = Convert.ToDouble(e.Row.Cells[i]).ToString("F2");
}
</code>

Re: Formatting data in a GridView

mjackson1125-Jun-11 9:46

mjackson11

25-Jun-11 9:46

Got it to work. Man this seems clunky tho

<pre>
protected void gvFcstDmd_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
int i;
TableCell c;

for (i = 1; i < e.Row.Cells.Count; i++)
{
c = e.Row.Cells[i];
c.HorizontalAlign = HorizontalAlign.Right;
Double d = Double.Parse(c.Text) * 1000;
c.Text = String.Format("{0,6:N0}",d);
}
}
}

</pre>

how to get the list of files in a folder?

neodeaths23-Jun-11 9:56

neodeaths

23-Jun-11 9:56

hi does anyone know the syntex of getting the list of files from a specific folder
when using asp.net 2005 c#?

Re: how to get the list of files in a folder?

Ali Al Omairi(Abu AlHassan)23-Jun-11 10:46

Ali Al Omairi(Abu AlHassan)

23-Jun-11 10:46

Directory.GetFiles("*.*");

Help people,so poeple can help you.

Re: how to get the list of files in a folder?

Agent__00727-Jun-11 7:18

Agent__007

27-Jun-11 7:18

You can use string array to retrieve the list of files from a perticular folder as :

String[] fileList=System.IO.Directory.GetFiles(@"C:\XYZ\");

how to solve dynamic control panel postback problem?

neodeaths23-Jun-11 9:54

neodeaths

23-Jun-11 9:54

hi i am currently using c# asp.net 2005.

i have a panel which is being populated by a unknown number of fileupload control.

so far it works fine, as i use a dropdownlist to populate the amount of fileupload control for the panel,
however when i click on the button to access the panel's control the panel always reset.

i read somewhere that this is cause by the post back of the button hence the controls in the button act as if they never existed.

does anyone have any solution for this they can recommend for this please?

Re: how to solve dynamic control panel postback problem?

kadaoui el mehdi26-Jun-11 0:32

kadaoui el mehdi

26-Jun-11 0:32

Hello,

I recommand to use the Callback and not postback.

For more infotmations you can check this topic : Callback WebControls[^]

I hope that will help you.

Good luck.

Regex pattern

padmanabhan N23-Jun-11 3:14

padmanabhan N

23-Jun-11 3:14

Hi Experts,

The below given is the Regex pattern for validating e-mail. I have to do it in 2 ways one is through UI and another one is through excel import. In UI i am using the same Regex pattern as given below using regularexpressionvalidator. It is correctly validation "sam@ple@code.com" and "'sam@ple@code.com'" - @@ and '' are correctly restricted in UI but when i use the same in code it is not validationg the given 2 email ids and allowing me to insert. how to avoid double @ and single quoted. i want the Regex pattern. can anyone help me in this?

UI- working fine
===
ValidationExpression="\w+([-+.']\w+([-]*))*@\w+([-.]\w+)*\.\w+([-.]\w+)*"

Inside code - not working for double @ and '
============
Regex patternMatch = new Regex("\\w+([-+.']\\w+([-]*))*@\\w+([-.]\\w+)*\\.\\w+([-.]\\w+)*");//("(\\d|-| | )*");

Padmanabhan
My Articles:
Articles[^]
My latest Article:
Word Automation[^]

Re: Regex pattern

Keith Barrow23-Jun-11 4:10

Keith Barrow

23-Jun-11 4:10

I use this : www.regxlib.com [^], otherwise I'll whittle my life away creating the "perfect" regex Smile | :)

Sort of a cross between Lawrence of Arabia and Dilbert.[^]
-Or-
A Dead ringer for Kate Winslett[^]

Displaying the image from the Sql

NaveenHS23-Jun-11 2:15

NaveenHS

23-Jun-11 2:15

Displaying the image from the Sql

Hi,

I am trying to display image on the page stored in the SQL DB.

Image is store in the <BinaryData> format in the DB. I am display in the DataGrid its working fine, problem with page.

SqlCommand Cmd = new SqlCommand(Query, myconnection);
       SqlDataReader dr = Cmd.ExecuteReader();
       if (dr.HasRows)
       {
           dr.Read();
           lblProdName.Text = Product;
           lblProdDesc.Text = dr[0].ToString();
           lblPrice.Text = dr[3].ToString();

         //dr[5] image
          byte[] Photo = (byte[])dr[5];
          Response.ContentType = "image/jpeg";
          Response.OutputStream.Write(Photo, 0, Photo.Length);

       }

       dr.Close();

only image is displayed on the page without any other content ,

if I comment lines

// Response.ContentType = "image/jpeg";
// Response.OutputStream.Write(Photo, 0, Photo.Length);

All the contents are displayed except the image.
what is the proper way to display the image on the page using SQL ??
Please help me with this.

Thanking you,
Naveen.

Re: Displaying the image from the Sql

Blue_Boy23-Jun-11 4:55

Blue_Boy

23-Jun-11 4:55

try this

Response.ContentType = "image/jpeg" ;<br />
Response.BinaryWrite(dr["ImageField"])) ;

I Love T-SQL
"Don't torture yourself,let the life to do it for you."
If my post helps you kindly save my time by voting my post.

www.cacttus.com

Re: Displaying the image from the Sql

GenJerDan23-Jun-11 6:14

GenJerDan

23-Jun-11 6:14

Basically, you want to push a complete web page to a browser, but browsers are designed to pull pages.

I don't think you can send two streams like that for one display page (text + image).

However, if you programmatically create a ".mht" page, you cvould probably do what you're tryign to do. Maybe something in this article will give you an idea: Convert HTML to MHTML using ASP.NET[^]

Build a man a fire, and he'll be warm for a day.
Set a man on fire, and he'll be warm for the rest of his life.

My Mu[sic]
My Films
My Windows Programs, etc.

Re: Displaying the image from the Sql

Not Active23-Jun-11 7:38

Not Active

23-Jun-11 7:38

GenJerDan wrote:
you want to push a complete web page to a browser

What? No, the page is being rendered in response to a request. It's not like the web server is randomly connecting to some machine and trying to send content.

GenJerDan wrote:
I don't think you can send two streams like that

There is only one stream. The images is being placed within that stream.

I know the language. I've read a book. - _Madmatt

Re: Displaying the image from the Sql

GenJerDan23-Jun-11 7:49

GenJerDan

23-Jun-11 7:49

Mark Nischalke wrote:
What? No, the page is being rendered in response to a request. It's not like the
web server is randomly connecting to some machine and trying to send
content.

Yes, but, basically, a browser requests something and the server delivers it in the stream, i.e. a pull, not a push. Then the browser "looks" at what it got and says to itself Ah-hah! I need to get the image for this. I better request another stream for it. It doesn't all come in one clump. Trying to send two streams when the broweser is only capable of requesting one at a time is not going to work.

Mark Nischalke wrote:
There is only one stream. The images is being placed within that stream.

Nope. There needs to be multiple responses, one for each discrete item. Or there needs to be something on the browser itself that can take a multiplexed stream and demux it. An ActiveX control could do that....but there are too many problems there, the least of which is convincing the user to load yet another plugin. But the MHTML process is already built-in, which is why I suggested it. The only difficulty is in creating the MHTML object in your server code.

You can downvote me all you want, but it won't change the way browsers work.

Build a man a fire, and he'll be warm for a day.
Set a man on fire, and he'll be warm for the rest of his life.

My Mu[sic]
My Films
My Windows Programs, etc.

Re: Displaying the image from the Sql

Not Active23-Jun-11 8:03

Not Active

23-Jun-11 8:03

GenJerDan wrote:
There needs to be multiple responses, one for each discrete item.

Correct, one at a time.

What the OP was asking to is insert the image into the ONE stream along with the text, all of which which would be streamed to the requesting browser as one chunk of binary data. It is possible and is done quite frequently.

GenJerDan wrote:
it won't change the way browsers work.

No but I think you need to change your understanding how things work. The down vote was justified because you are incorrect in your views and what you are suggesting is just plain wrong.

I know the language. I've read a book. - _Madmatt

Re: Displaying the image from the Sql

GenJerDan23-Jun-11 8:08

GenJerDan

23-Jun-11 8:08

Oh, really? So what Content-Type type is text with embedded image that a browser can handle, other than as an email client? Other than the MHTML, of course.

Or should we all start worrying every web page out there being able to piggyback whatever they want in a content stream?

Build a man a fire, and he'll be warm for a day.
Set a man on fire, and he'll be warm for the rest of his life.

My Mu[sic]
My Films
My Windows Programs, etc.

Re: Displaying the image from the Sql

RichardGrimmer28-Jun-11 5:05

RichardGrimmer

28-Jun-11 5:05

OK - what you're doing here is explicitly telling the browser that what's coming is an image in jpeg format (Response.ContentType), and that the content itself is the bytestream (Response.OutputStream.Write).

With those lines in place, you're NOT rendering anything else to the browser - just the image.

The default Response.ContentType is (IIRC) text/html - which is effectively a webpage, so with the lines commented, you're basically saying "do the normal thing", and not writing anything explicitly.

To render the image with the text, you need to set the Source of an Image control that's part of the page.

Something similar to the following...

byte[] imageData = (byte[])dr[5];
MemoryStream memStream = new MemoryStream(imageData);
image = Image.FromStream(memStream);

Which incidentally is pretty much ripped off wholesale from the top link in Google[^]

C# has already designed away most of the tedium of C++.

Re: Displaying the image from the Sql

Morgs Morgan8-Jul-11 5:19

Morgs Morgan

8-Jul-11 5:19

Hi,
I don't know if you have sorted this out but the last person who commented got it right though unclear.
What he/she meant is that have an already existing img/image on you page that it's src comes from another page like so:

<img id="theImageFromSQL" runat="server" alt="theImageFromSQL" src="ImagesPage.aspx?id=someId" />
//Now create a separate empty page ImagesPage.aspx
//in the Page Load check the query string (id) and use it to query your database for the right image to display
//then do exactly what you did above

//when a browser loads the image it will call ImagesPage.aspx and this page will write back JUST an image which is what you want (i guess)

You can leave the other controls on the 'main' page which could be Home.aspx/Default.aspx and ofcourse your img/image will be in this same main page.

shout if u need more help
Morgs

Strongly typed ActionLink is not present in vs 2010..

siva45522-Jun-11 23:45

siva455

22-Jun-11 23:45

Hi,
im not able to find ActionLink<> in vs 2010 ..please help me..

what is the workaround for <%=Html.ActionLink<HomeController>(x => x.Index(),"Home")%>as the above line throws..error..bcos Strongly typed ActionLink is not present

Re: Strongly typed ActionLink is not present in vs 2010..

Not Active23-Jun-11 2:15

Not Active

23-Jun-11 2:15

ActionLink is an extension method on the LinkExtensions class. Make sure you have the proper references in your project and have it registered on the page

http://msdn.microsoft.com/en-us/library/system.web.mvc.html.linkextensions.actionlink.aspx[^]

I know the language. I've read a book. - _Madmatt

How to find application URL while using separate script file in asp.net ?

zeego21-Jun-11 20:47

zeego

21-Jun-11 20:47

I am trying to find the url of webservice from a page inside a subdirectory in my website. I am using a separate script file referenced in my page. This does not work in the script file

var pgUrl='<%= ResolveUrl("~/assets/WebServices/Admin/UsrRoleService.asmx") %>';

How do I find the application url in the script file ?

Re: How to find application URL while using separate script file in asp.net ?

Vasudevan Deepak Kumar22-Jun-11 10:42

Vasudevan Deepak Kumar

22-Jun-11 10:42

How about having script file in a .ASHX (Generic handler) so that ASP.NET can pre-process and send it...

Vasudevan Deepak Kumar
Personal Homepage
Tech Gossips

The woods are lovely, dark and deep,
But I have promises to keep,
And miles to go before I sleep,
And miles to go before I sleep!

Re: How to find application URL while using separate script file in asp.net ?

Shahriar Iqbal Chowdhury/Galib22-Jun-11 11:04

Shahriar Iqbal Chowdhury/Galib

22-Jun-11 11:04

Try this code below

var pgUrl='<%= this.Page.ResolveUrl("~/assets/WebServices/Admin/UsrRoleService.asmx") %>';

Re: How to find application URL while using separate script file in asp.net ?

AspDotNetDev22-Jun-11 11:12

AspDotNetDev

22-Jun-11 11:12

This will not work. The OP is trying to call ASP.NET code from an actual .JS file... that's not going to work.

Help a brotha out and vote Managing Your JavaScript Library in ASP.NET as the best ASP.NET article of May 2011.

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