ASP.NET

Re: Extract text from Image

4-Jul-06 5:00

Can you try to view source the web page and check if the image element is there, then have a look at the src value to see if it is correct?

Hello all

dhulipudi3-Jul-06 20:17

dhulipudi

3-Jul-06 20:17

I want to learn more in asp.net programming

please try to suggest any body what i have to do

bye
vk Roll eyes | :rolleyes:

hai all please clarify my doubts

Re: Hello all

albCode3-Jul-06 21:46

albCode

3-Jul-06 21:46

ASP.NET Books[^]

Extract text from Image

venkatasivaramaprasad3-Jul-06 20:05

venkatasivaramaprasad

3-Jul-06 20:05

Hi all,

Can any body give me idea for my problem.

Problem is "I need Extract Text which is in Image"

If any body knows please let me know

Thanks in Advance

Thanks and Regards

Venkat

dhulipudi3-Jul-06 20:32

dhulipudi

3-Jul-06 20:32

Hello ..

We can edit extarct text from image by useing
photo shop try to do it...

bye

Dhulipudi

Re: Extract text from Image

RichardGrimmer4-Jul-06 2:50

RichardGrimmer

4-Jul-06 2:50

You have to use OCR stuff to do this - not easy OR fun Frown | :(

"Now I guess I'll sit back and watch people misinterpret what I just said......"
Christian Graus At The Soapbox

Populating values into password box

Uma Kameswari3-Jul-06 19:49

Uma Kameswari

3-Jul-06 19:49

Hello,
I have a member registration form where I accept the user name,password etc.The control I used here is password type text box. Now when I want to provide the editing option for the member how do I populate the password type text box with the existing password? A direct assignment of passeord to the texbox is not displaying the values.
Regards,
Uma

Re: Populating values into password box

_AK_3-Jul-06 20:17

_AK_

3-Jul-06 20:17

Hi,
You can't assign the value directly to a textbox having textmode as password. However it can be assigned like this:

TextBox1.Attributes.Add("value","kaushal");

Best Regards,
Apurva Kaushal

Re: Populating values into password box

minhpc_bk3-Jul-06 20:20

3-Jul-06 20:20

IMO, you can simply implement the change passord functionality in the same way as a normal system does, it means the user is required to supplied his old password to change his current password. However, you are still able to set the default value for the password box by adding it to the Attributes collection as the Text property does not help in this case.

txtPassword.Attributes.Add("value","password goes here"

Also, you should know that this option is not secure as it exposes the password value on the web page, and you can easily reveal it by simply doing a view source.

Sorting in Gridview

Tiger4563-Jul-06 18:54

3-Jul-06 18:54

I have a BL class that i use to retrieve a Dataset. I'm binding this Dataset to a GridView as a data source, I'm not displaying all the columns so i have added three columns. I have enabled sorting but everytime i click on the header i get the error 'the gridview fired event sorting which wasn't handled'. I know this is because i havent implemented sorting event handler. But as long as i remember gridview do the sorting and paging automatically. I have done this by using either SqlDatasource or ObjectDatasource and it works fine. Can some body explain me why i can't get the auto sorting functionality when i'm binding programatically

minhpc_bk3-Jul-06 20:10

3-Jul-06 20:10

If you manage to bind the data source to the GridView control instead of using a datasouce control, you will need to create a handler for the Sorting event of the control.

Tiger4564-Jul-06 18:01

4-Jul-06 18:01

Thanks for your reply.

I tried to create handler but e.SortDirection is not toggling. Can you please give a code snippet to do this. Is there any advantage in using dataSource controls for binding

minhpc_bk4-Jul-06 21:41

4-Jul-06 21:41

The e.SortDirection only works properly when you use the GridView control with a DataSource control. Basically, with datasource controls like SqlDataSource, ObjectDataSource ...you can easily use the GridView control to display data with built-in features like paging, sorting without writing even a line of code in the web page. In case of not using a datasource control, you need to manage on your own the sorting direction for example persisting in the ViewState/ControlState ...

Tiger4564-Jul-06 21:50

Display physical file in IFrame

4-Jul-06 21:50

So its better to make use of DataSource controls working with Gridview.

On working with EmptyDataTemplate . If there is no records in the datasource or DataSource is null then Coloums headers are removed automatically . i tried to use Templatecoloums but that also wont worked.
I need to show output like this

coloum1 coloum2 coloum3 coloum4
-------------------------------
No data Found

jibcht3-Jul-06 18:24

jibcht

3-Jul-06 18:24

Hi! All,

I have a problem when I tried to open src in IFrame by using htmlPostedFile html control.
I have web page and in page have Iframe. I browse the physical file from local or network then I want to display file into Iframe section but it didn't work and my code is following this

Me.IframeDPF.Attributes("src") = FileUpload1.PostedFile.FileName (c:\read.pdf)

the page cannot be displayed the physical file

Can somebody know the problem this

Thank you in advance

Jibcht

Form -- Modal dialog -- Postback --- refresh form?

devvvy3-Jul-06 17:15

devvvy

3-Jul-06 17:15

I am running into a little bit of trouble here. Basically, I launch a popup from a form

Step 1: Form ("Employee Detail", for example)

Step 2: From "Employee Detail" form, I launch a modal dialog

<br />
function ShowSelectCostCenterDialog() {<br />
  var ret = false;<br />
<br />
  //The modal dialog select a "cost-center" then put in session Session[COST_CENTER]<br />
  ret = window.showModalDialog('../UserControls/SelectCostCenterFrame.aspx?MoreThanOneBU=true', window, 'dialogWidth:970px;dialogHeight:490px;resizable:yes;scroll:yes;status:no;');<br />
  if(ret) {<br />
   document.forms[0].submit(); //ATTENTION: Post-back did occur. Page_Load was run and I verified it with debugger.<br />
  } else {<br />
   //Do nothing<br />
  }<br />
  return;<br />
}

I opened debugger, Page_Load did occur and "cost center" was retrieved from Session[COST_CENTER] and during Page_Load:

txt_CostCenter.Text = cost_center; (This was indeed executed during Page_Load)

I checked and verified that, immediately before "return" in Page_Load, txt_CostCenter.Text was indeed updated. However, the "rendered" page as seen in browser didn't get updated accordingly!?

Any idea guys?

Norman Fung

Re: Form -- Modal dialog -- Postback --- refresh form?

minhpc_bk3-Jul-06 20:49

Re: Form -- Modal dialog -- Postback --- refresh form?

3-Jul-06 20:49

Hi Norman,
+ Is there any chance that the textbox is overwritten somewhere else before the page is rendered?
+ IMHO, you may just simply use the returnValue to return the cost-center value instead of posting the page back to update the textbox.

devvvy3-Jul-06 21:35

devvvy

3-Jul-06 21:35

Hi minhpc, long time no see... How'ya doing?

minhpc_bk wrote:
+ Is there any chance that the textbox is overwritten somewhere else before the page is rendered?

Well, I stepped through the code: from the moment txt_CostCenter was updated (as intended) to last line in Page_Load... I don't see any other event handler on the page... And don't think "txt_CostCenter" will be overwritten by anything from base page...

minhpc_bk wrote:
+ IMHO, you may just simply use the returnValue to return the cost-center value instead of posting the page back to update the textbox.

Just being lazy... Smile | :)

Norman Fung

Re: Form -- Modal dialog -- Postback --- refresh form?

minhpc_bk4-Jul-06 0:22

Draw backs in using SQL server 2000

4-Jul-06 0:22

Thanks Norman, it's quite long not to see you around Smile | :)

norm wrote:
Well, I stepped through the code: from the moment txt_CostCenter was updated (as intended) to last line in Page_Load... I don't see any other event handler on the page... And don't think "txt_CostCenter" will be overwritten by anything from base page...

Do you use any data binding expression with the TextBox? May I see your sample code? You can also try with simple code to make sure that it's working in the way you want.

Tiger4563-Jul-06 14:48

Re: Draw backs in using SQL server 2000

3-Jul-06 14:48

Hi

Is there any drawbacks in using SQL server 2000 as the back end for ASP.net 2.0 application. Is there any chance for some functionalities wont work.

Igor Sukhov3-Jul-06 18:47

Igor Sukhov

3-Jul-06 18:47

Only if your application uses those SQL features which are not supported in MS SQL 2000 (e.g. you're using Oracle PL/SQL).

Best regards,

-----------
Igor Sukhovhttp://sukhov.net

Data push from server to desktop applications

mastjabs3-Jul-06 12:34

mastjabs

3-Jul-06 12:34

Hi ol..

I am having a situation to push data to connected desktop clients. the scenario is that a search criteria would come from a web browser and depending on the criteria the message has to be multicasted to connected desktop clients. The web application is partly developed in ASP.NET 2.0 but im still loking for best ways to push this data to desktop clients. I was wondering if i could use a web service approach(but again the data cannot be pushed but only requested) or sockets. wat would the firewall or IP address issues in case of Sockets??
I am looking for any help or suggestion which could guide me towards developing this kind of framework.
any related articles also plese..

Re: Data push from server to desktop applications

minhpc_bk3-Jul-06 20:37