C# Discussion Boards - CodeProject

IE7 restrict the browser to a single tab

Sundar_R29-Dec-08 0:36

29-Dec-08 0:36

Hi
Can anyone please tell me how to restrict the browser to a sigle tab,and prevent the user from opening any new tabs in the same browser.
Is it possible to achieve this from javascript or on the server side ?

Thanks in advance

Re: IE7 restrict the browser to a single tab

Dave Kreskowiak29-Dec-08 2:02

Dave Kreskowiak

29-Dec-08 2:02

Nope. It's not possible to restrict IE7 to a single tab from code running in the browser and definitly not possible to do it from the server side. It IS a setting available to the user of IE7, but changing that setting requires IE7 to be restarted in order for it to take effect.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007, 2008

Re: IE7 restrict the browser to a single tab

Sundar_R29-Dec-08 18:36

Sundar_R

29-Dec-08 18:36

Hi Dave,

Thanks for your response i got the point.
My problem is that when the application is opened in multiple tabs in the same browser
it is using the same session id.
Making the session cookieless using the sessionstate attribute in web.config does solve my problem
but the following link
http://msdn.microsoft.com/en-us/library/h6bb9cz9.aspx[^]

says that it is not advisable for ajax enabled applications
what maybe the reason for that or do i have any other work arounds to avoid the browser using the
same sessionid across multiple tabs.

Thanks,
R.Sundar.

Re: IE7 restrict the browser to a single tab

Dave Kreskowiak30-Dec-08 3:22

Dave Kreskowiak

30-Dec-08 3:22

I have no idea since my experience with AJAX is really limited. You should be asking this in the ASP.NET forum, not C#.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007, 2008

Datatable problem with updating value in C#.net

sejal12329-Dec-08 0:26

sejal123

29-Dec-08 0:26

hello,

I have a datatable with 4 columns
now i have some value in cell of 4th column
and on selectedIndexchange event of Combobox i want to update its value.

i m looping below listed code:

<code>MarkupList.Rows[i].ItemArray.SetValue("For Information Only", 4);</code>

but it does'nt seem to work as it is not changing value.
please help to solve the problem. Unsure | :~

sejal

Re: Datatable problem with updating value in C#.net

^That's Aragon29-Dec-08 0:39

^That's Aragon

29-Dec-08 0:39

Hi Sejal,

Can you please post your code here ,so one can provide the solution ?

Regards

Re: Datatable problem with updating value in C#.net

sejal1231-Jan-09 23:37

sejal123

1-Jan-09 23:37

for (int i = 0;  MarkupList.Rows.Count; i++)
 {
if (MarkupList.Rows[i].ItemArray.GetValue(4) == "No")
                {
                    MarkupList.Rows[i].ItemArray.SetValue("ENG_NO", 4);
                }
                else if (MarkupList.Rows[i].ItemArray.GetValue(4) == "None") 
                {
                    MarkupList.Rows[i].ItemArray.SetValue("Eng_NONE", 4);
                }
                else if (MarkupList.Rows[i].ItemArray.GetValue(4) == "Yes") 
                {
                    MarkupList.Rows[i].ItemArray.SetValue("ENG_YES", 4);
                }
}

May be this is not correct. But i wanted to know the method to update datatable field values.

sejal

struct and array?

dec8228-Dec-08 23:23

dec82

28-Dec-08 23:23

How do i declare array inside a struct.Cause i got error, and it said should use new keyword to declare. For example:

public struct MY_TRUCT
{
public int Number;
public string Description;
public string ParaTypes[20];
}

Re: struct and array?

rah_sin28-Dec-08 23:27

rah_sin

28-Dec-08 23:27

may be like this

public struct MY_TRUCT
{
public int Number;
public string Description;
public string[] ParaTypes = new string[20];
}

rahul

Re: struct and array?

Guffa28-Dec-08 23:55

Guffa

28-Dec-08 23:55

No, that doesn't work. You can't initialize the members of a struct.

Despite everything, the person most likely to be fooling you next is yourself.

Re: struct and array?

Guffa28-Dec-08 23:53

Guffa

28-Dec-08 23:53

You can't create an array in the declaration of a struct.

Do you have any reason to make it a struct? Otherwise you should make it a class. Implementing a struct correctly is more complicated than implementing a class correctly.

Despite everything, the person most likely to be fooling you next is yourself.

Re: struct and array?

Brij29-Dec-08 0:27

Brij

29-Dec-08 0:27

Check the link below
Cliick here[^]

Cheers!!
Brij

Re: struct and array? [modified]

Lev Danielyan29-Dec-08 4:35

Lev Danielyan

29-Dec-08 4:35

As it was said, you cannot initialize struct member, neither can you use parameterless constructor,
but you can use a constructor with parameters and initialize you array there.
Something like this:

public struct MY_TRUCT
{
public int Number;
public string Description;
public string ParaTypes[];

public MY_TRUCT(string[] paraTypes) {
 ParaTypes = paraTypes;
}
}

Regards,
Lev

modified on Tuesday, December 30, 2008 1:06 AM

Re: struct and array?

Guffa29-Dec-08 10:28

Guffa

29-Dec-08 10:28

With some corrections, that would work, but it still isn't a good implementation of a struct.

Consider this:

MY_TRUCT x = new MY_TRUCT(new string[] { "a", "b" } );
Console.WriteLine(x.ParaTypes[0]); // shows "a"
MY_TRUCT y = x;
y.ParaTypes[0] = "c";
Console.WriteLine(x.ParaTypes[0]); // now shows "c"

Mutable structs can give you surprising results, structs containing mutable objects can give you even more surprising results...

Despite everything, the person most likely to be fooling you next is yourself.

Re: struct and array?

Lev Danielyan29-Dec-08 18:53

Lev Danielyan

29-Dec-08 18:53

Guffa wrote:
With some corrections, that would work, but it still isn't a good implementation of a struct.

Nobody says it is Smile | :)

I just wanted to make a point that he can initialize a struct member with a constructor with parameters, if a non-default value is needed.

Regards,
Lev

Re: struct and array?

dec8229-Dec-08 19:02

dec82

29-Dec-08 19:02

public string ParaTypes[20]

i got error: array size can not be specified in a variable declaration?

Re: struct and array?

Lev Danielyan29-Dec-08 19:06

Lev Danielyan

29-Dec-08 19:06

Oops, of course you can't, the array has to be specified during the initialization

Fixed the post, sorry for that (didn't have a compiler at the moment Wink | ;)

)

Regards,
Lev

Read HTML tags in XML Reader

jhuerta28-Dec-08 22:55

jhuerta

28-Dec-08 22:55

Hi all,

I have an XML as following. I'm trying to read it with the following code:

DataSet cars = new DataSet();
cars.ReadXml("http://localhost/cars/newcars.xml");

All the nodes are getting properly populated into the Dataset created EXCEPT the "description" node. I can't find a way to make ReadXML (or similar method) to get the content of the description node and skip the HTML tags. I would like just treat that portion as pure text, ignoring the html content.

My question would be: How can I read an XML file which some of the nodes have HTML tags inserted? How could I avoid that the program treats the HTML tags as XML nodes>

thanks,

Juan

<cars>
<car>
<color>red</color>
<model>ford</model>
<description>
Superfast<h2 xmlns="http://www.w3.org/1999/xhtml">Reasons to buy</h2>Just because
</description>
</car>
</cars>

Re: Read HTML tags in XML Reader

N a v a n e e t h28-Dec-08 23:11

N a v a n e e t h

28-Dec-08 23:11

HTML content should be placed inside a CDATA section. So XML parsers will ignore it.

Navaneeth

How to use google | Ask smart questions

Re: Read HTML tags in XML Reader

jhuerta29-Dec-08 3:33

jhuerta

29-Dec-08 3:33

thanks! I'll work on that solution.

-- Juan

problem in datagridview

SreejithKumar M28-Dec-08 22:39

SreejithKumar M

28-Dec-08 22:39

Hai all,

In my datagridview i have multple cells.i need values in all cell in each roe.

Suppose my dgridvw contains name and order as two fields.
my requirement is for each row i need value of cells separately

ie
i used a generic list
list<demo> myDemo=new list<demo>();
demo dm=new demo();//demo is class
for(i=0;i<tabCount;i++)
{
foreach(datagridviewrow row in dgv.rows)
{
dm.text=row.cells[0].value.tostring();
dm.order=row.cells[1].value.tostring();
}
myDemo.add(dm);
}

in first row i entered text=myText and order=1
in second row i entered text=urText and order=2

but atlast i am getting later values for each row.
ie urText and 2 in both row.
i need different values for different row
pls help me

Re: problem in datagridview

rah_sin28-Dec-08 22:47

rah_sin

28-Dec-08 22:47

i think putting myDemo.add(dm);
inside
foreach(datagridviewrow row in dgv.rows)
{
dm.text=row.cells[0].value.tostring();
dm.order=row.cells[1].value.tostring();
myDemo.add(dm);
}
may solve ur problem

rahul

Re: problem in datagridview

SreejithKumar M28-Dec-08 22:54

SreejithKumar M

28-Dec-08 22:54

Sorry Rahul

I already tried that.No Use(Same Result)

Re: problem in datagridview

rah_sin28-Dec-08 23:02

rah_sin

28-Dec-08 23:02

what about this

foreach(datagridviewrow row in dgv.rows)
{
demo dm=new demo();
dm.text=row.cells[0].value.tostring();
dm.order=row.cells[1].value.tostring();
myDemo.add(dm);
}

rahul

Re: problem in datagridview

SreejithKumar M28-Dec-08 23:07

SreejithKumar M

28-Dec-08 23:07

Thank u rahul

its working

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