Mathematical, Physics and Chemistry Symbols tools for ASP.NET - ASP.NET Discussion Boards

Re: Need advice - Designing ASP application

Boipelo5-Aug-13 6:03

5-Aug-13 6:03

Thanks for the explanation, it helped a lot. I researched a bit following your comment/explanation and now know what to do. I still have to study JSON to at least intermediate level, for now.

Thanks once more, much appreciated.

I remain joe!

Asp.net application css issue

kulldeep verma3-Aug-13 4:26

kulldeep verma

3-Aug-13 4:26

I am designing a asp.net web based form . In which I used 11 panel controls . By Default 4 of them are hidden. Inside the panel control I have created 10R ,6 C layout table . Column 1 and 4 is having texts and 2 and 5th column is haing asp.net control like texbox ,Dropdown list etc .

My problem is I have create css to manage width and color .
But all panels are not align properly however i am using same css class for all .

Please guide .

Re: Asp.net application css issue

jkirkerx3-Aug-13 12:40

jkirkerx

3-Aug-13 12:40

Panels or div elements are hard to align, until you understand CSS, and Float. Clear, Display, Block, Inline

If you position 3 div's in a row, then the total width of the 3 div's must not exceed the width of the parent container, or else it will block, block meaning the 3rd div will position down 1 row. Block is the term used in the CSS Display, in which block and inline are valid options.

If you want to stack 3 div's on top of each other, block, then you can use display: block and they will stack in a column.

If you want to create a row of 3 div's, you have to float the 2nd div, and 3rd div to get it to align to the first div.
float: left; display: inline;

It's probably easier to hand assign the CSS for each panel until you get it right, rather that using a class from a CSS File. Then you can get a better idea of how the CSS works for div's.

There use to be a really good tutorial on div alignment but I could not find it. It had picture examples of how to align div elements, or aka panel control in asp.net

http://coding.smashingmagazine.com/2007/05/01/css-float-theory-things-you-should-know/[^]

http://stackoverflow.com/questions/2417130/how-to-align-two-divs-horizontally[^]

modified 4-Aug-13 17:36pm.

Re: Asp.net application css issue

Dholakiya Ankit7-Aug-13 20:02

Dholakiya Ankit

7-Aug-13 20:02

http://getfirebug.com/wiki/index.php/CSS_Panel[^]

https://drupal.org/node/626054[^]

this links will give you more idea how to setup that one Smile | :)

online model

durgesh j2-Aug-13 20:34

durgesh j

2-Aug-13 20:34

Hey,
can any one provide me the help regarding how to retrive the Question and Ans for online quiz model from text file and how can i compare the ans

Re: online model

Richard MacCutchan2-Aug-13 22:00

Richard MacCutchan

2-Aug-13 22:00

Don't use a text file, use a database. There are lots of articles around on this type of application.

Use the best guess

Re: online model

Ajay 101865622-Aug-13 23:03

Ajay 10186562

2-Aug-13 23:03

sir i want to upload file and data to access data base sql and provide solution for that

Mathematical, Physics and Chemistry Symbols tools for ASP.NET

Olamiji Akeem Odeyemi2-Aug-13 2:29

Olamiji Akeem Odeyemi

2-Aug-13 2:29

Hello,
I need a tool that can be used to write mathematical, chemistry and physics symbols or fomular in my ASP.NET application. The scenario is that, my clients will be solving mathematical, chemistry or physics questions from the ASP.NET application and they will need to write the formular using a tool build in my ASP.NET application to solve any question(from algebra, trigonometry, set theory e.t.c...) in a way they think the answer to the question should be. I am stuck here as I do not know the kind of tool that can be used to accomplish this.

I will be glad to hear a favourable reply on this forum.

Thank You,

need help

snehal1222-Aug-13 1:54

snehal122

2-Aug-13 1:54

Image compression using half a coding or another.(algorithm)

Re: need help

Richard MacCutchan2-Aug-13 3:08

Richard MacCutchan

2-Aug-13 3:08

You already posted this in the Algorithm forum, and it did not make any sense there either.

Use the best guess

Asp.net, javascript : Textbox issue with chrome and firefox. pls help me out

christhuxavier2-Aug-13 1:12

christhuxavier

2-Aug-13 1:12

i am giving some value in textbox1 (take for example vishal). so, when i give tab, it(vishal) should assign in textbox2.

so, i used the following in aspx and java script:

aspx:

onchange="getval()"

javascript

function getval() {

var keyCode = event.keyCode ? event.keyCode : event.which ? event.which : event.charCode;
document.getElementById('<%=textbox2.ClientID %>').value = document.getElementById('<%=textbox1.ClientID %>').value;
}

It works correctly in chrome . but, not working in firefox. pls help me out.

Re: Asp.net, javascript : Textbox issue with chrome and firefox. pls help me out

Parwej Ahamad2-Aug-13 7:07

Parwej Ahamad

2-Aug-13 7:07

Issue with event keyword. Some browser are not support only "event" keyword. So try to use event called "onblur".

It's opposite of onfocus:

function getval() {

document.getElementById('<%=textbox2.ClientID %>').value = document.getElementById('<%=textbox1.ClientID %>').value;
}

Parwej Ahamad

Re: Asp.net, javascript : Textbox issue with chrome and firefox. pls help me out

Dholakiya Ankit10-Sep-13 0:51

Dholakiya Ankit

10-Sep-13 0:51

rather then change use onkeyup or onkeydown blur will have minimize issues Smile | :)

Displaying images using image controller in asp.net which was retrived from sql server database

Rajeev Krishna1-Aug-13 6:12

Rajeev Krishna

1-Aug-13 6:12

Dear All,

I have a table named images in sql server 2008 and it contains two colums imageid and image.Now i am able to insert images in to image column using file uploader controller and image which i have converted to binary form for storing.Now i want to disply the images in a image box correspondance with the image id.I am used textbox for receiving the id and a button to execute the command for displaying.I am using asp.net as front end.

public void ShowImage()
{

SqlConnection con = new SqlConnection();
con.ConnectionString = System.Configuration.ConfigurationManager.AppSettings["anu"].ToString();
SqlCommand cmd = new SqlCommand();
cmd.CommandText = "Select ID,Image from Images where ID=" + txtid.Text;
cmd.CommandType = System.Data.CommandType.Text;
cmd.Connection = con;

con.Open();
SqlDataReader dreader = cmd.ExecuteReader();
dreader.Read();
Context.Response.BinaryWrite((byte[])dreader["image"]);

dreader.Close();
        con.Close();

}

This code is working fine but it displaying the picture in a diifrent page but i need to display the picture in the image box which i have added.If anyone who know the answer, please help me.

Regards,
Rajeev K.

Re: Displaying images using image controller in asp.net which was retrived from sql server database

Rajeev Krishna2-Aug-13 1:35

Rajeev Krishna

2-Aug-13 1:35

Hi Tadit,

Thanks for answering my question.

could you please explain how processrequest method can receive the ID( id column in database) from text box,then only it could possible to take diffrent images from database based on the id.Also explain how to load the same picture to imange controller.

Regards,
Rajeev K.

Re: Displaying images using image controller in asp.net which was retrived from sql server database

Dholakiya Ankit7-Aug-13 21:28

Dholakiya Ankit

7-Aug-13 21:28

can you try your image

HTML

<img src="showimage()"/>

in your handler which will return output as image

regards.. Smile | :)

Generate PDF documents from a HTML page using ASP.NET

GopalakrishnanPS31-Jul-13 21:12

GopalakrishnanPS

31-Jul-13 21:12

I used iTextSharp.dll to create pdf. but that works only for text HTML content. if i use images in my page it throughs exception that images are not found...

my Design file

XML

<asp:Panel ID="pdfPannel" runat="server">

       Sample Text
<img src="../Images/image1.png"/>


 </asp:Panel>

<asp:Button ID="btnSave" runat="server" Text="Save As PDF" onclick="btnSave_Click" />

my method:

protected void btnSave_Click(object sender, EventArgs e)
{

Response.ContentType = "application/pdf";
Response.AddHeader("content-disposition", "attachment;filename=print.pdf");
Response.Cache.SetCacheability(HttpCacheability.NoCache);
StringWriter sw = new StringWriter();
HtmlTextWriter hw = new HtmlTextWriter(sw);
pdfPannel.RenderControl(hw);
StringReader sr = new StringReader(sw.ToString());
Document pdfDoc = new Document(PageSize.A4, 10f, 10f, 100f, 0f);
HTMLWorker htmlparser = new HTMLWorker(pdfDoc);
PdfWriter.GetInstance(pdfDoc, Response.OutputStream);
pdfDoc.Open();
htmlparser.Parse(sr);
pdfDoc.Close();
Response.Write(pdfDoc);
Response.End();

}

when i click that save button im getting error

Could not find a part of the path 'C:\Program Files\Common Files\Microsoft Shared\DevServer\Images\image1.png'.

Please tell me is there any alternate solution is there to create pdf.

Thanks in Advance..

Re: Generate PDF documents from a HTML page using ASP.NET

Parwej Ahamad31-Jul-13 21:50

Parwej Ahamad

31-Jul-13 21:50

Look at ITextSharp.

Some sample code:

http://am22tech.com/s/22/Blogs/post/2011/09/28/HTML-To-PDF-using-iTextSharp.aspx[^]

Parwej Ahamad

Re: Generate PDF documents from a HTML page using ASP.NET

Bernhard Hiller31-Jul-13 22:35

Bernhard Hiller

31-Jul-13 22:35

In which of the lines do you get that error?
And is that img src="../Images/image1.png" ever shown correctly on your page?

Re: Generate PDF documents from a HTML page using ASP.NET

GopalakrishnanPS1-Aug-13 2:15

GopalakrishnanPS

1-Aug-13 2:15

image is showing correctly in the page. but the error comes when i crteating pdf.

Error comes when i parse the html elements. it takes wrong url path for images.

C#

<pre lang="c#">
htmlparser.Parse(sr);

Re: Generate PDF documents from a HTML page using ASP.NET

Bernhard Hiller1-Aug-13 3:50

Bernhard Hiller

1-Aug-13 3:50

And what about using a full URL, i.e. img src="http://www.yourserver.com/images/myimage.jpg"?

Re: Generate PDF documents from a HTML page using ASP.NET

GopalakrishnanPS1-Aug-13 5:06

GopalakrishnanPS

1-Aug-13 5:06

nouw im developing in Localhost

Manually handling ASP.NET sessions

Desmond Lim31-Jul-13 15:32

Desmond Lim

31-Jul-13 15:32

I have a webserver that will be running an ASP.NET application and a WCF service.

The ASP.NET application would require the user to log in before he/she can use the WCF service. I want to handle the sessions so that the user will be logged out automatically after a period of time.

This is where I'm stuck, for the WCF application, I can check that the user is still using the system (i.e. the session gets updated every time the WCF application is called) but for the ASP.NET side, I'm just wondering how can I go about joining these 2 together. Because currently, the ASP.NET application would log the user off since what is happening after login doesn't touch the ASP.NET application which means that the user cannot access the WCF service.

I want to know if I can manually handle the ASP.NET sessions so that I can use the same session table (as the WCF service) in the database.

Thanks.

3-layer application

larsp77731-Jul-13 9:28

larsp777

31-Jul-13 9:28

Even though I now a bit about Web Forms I really know more about programing Window-applications.

I want to make a site using MVC but only the pattern, not the technology.

I read something about object data sources but must you use that?

Can someone please give me an example.

Re: 3-layer application

Richard MacCutchan31-Jul-13 21:05

Richard MacCutchan

31-Jul-13 21:05

Google will find lots of samples and general articles that explain the MVC pattern.

Use the best guess

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