C# Discussion Boards - CodeProject

Re: find all textbox in a form at runtime

4-Oct-07 20:43

By iterating over the controls collection of the form and check each control to see if it's a textbox

foreach(Control control in Controls)
{
TextBox tb = control as Textbox;
if (tb != null)
{
tb.Text = string.Empty;
}
}

An ASP.NET app would require a recursive solution.

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

darkelv4-Oct-07 21:19

darkelv

4-Oct-07 21:19

May still need to do a recursive for container such as panel, tablelayout, group, etc.

<br />
protected virtual void UnbindControls(Control control)<br />
{<br />
    foreach (Control obj in control.Controls)<br />
    {<br />
        if (obj is Panel)<br />
        {<br />
            UnbindControls(obj);<br />
        }<br />
        else if (obj is GroupBox)<br />
        {<br />
            UnbindControls(obj);<br />
        }<br />
        else if (obj is TabControl)<br />
        {<br />
            UnbindControls(obj);<br />
        }<br />
	//Any other containers type<br />
<br />
<br />
        if (obj is TextBox)<br />
        {<br />
            //Do Your Stuffs<br />
        }<br />
    }<br />
}<br />

Re: find all textbox in a form at runtime

Christian Graus4-Oct-07 22:03

Re: Help to choose project

4-Oct-07 22:03

Good point.

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Help to choose project

M. Ahmed4-Oct-07 20:30

M. Ahmed

4-Oct-07 20:30

I have to make an application for windows as well as a same application for mobile. It is final project of my master degree and i m very confused to decide that which type of application should i have to design.

Ahmed

Andrei Ungureanu4-Oct-07 22:12

Andrei Ungureanu

4-Oct-07 22:12

M. Ahmed wrote:
It is final project of my master degree

You want to be easy...Windows. I would do it on mobile...but that's just me.

Do your best to be the best

Dynamic controlls in asp.net

sonigirish4-Oct-07 20:30

sonigirish

4-Oct-07 20:30

Hi,
I am creating dynamic button and a textbox on my asp.net page on Page_load event.I am not able to raise event of button controll.Please guid me how can I perform any opration on click event of button.

{

TextBox TryTest = new TextBox();
Button btn = new Button();
TryTest.Font.Bold = true;
TryTest.ID = "Text1" ;

btn.ID = "Btn1";
btn.Attributes.Add("runat", "server");
btn.Attributes.Add("OnClick", "Button1_Click");
btn.Attributes.Add("Text", "Press Button");
PlaceHolder1.Controls.Add(new LiteralControl("
"));
TryTest.Text = "";
PlaceHolder1.Controls.Add(TryTest);
PlaceHolder1.Controls.Add(btn);
PlaceHolder1.Controls.Add(new LiteralControl("
"));

}

Girish Soni

Re: Dynamic controlls in asp.net

Christian Graus4-Oct-07 20:40

Re: Dynamic controlls in asp.net

4-Oct-07 20:40

This is not the ASP.NET forum.

You have to add your control before the page load event, in order for it to exist when viewstate is restored. Otherwise, your control is not there, and the viewstate is lost, including events.

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Guffa4-Oct-07 20:42

Guffa

4-Oct-07 20:42

If you add OnClick as an attribute, it will just end up in the client code. It's only when you write it in the markup code that it is compiled into code that binds the event handler.

When you create the control dynamically, you have to write the code that binds the event handler yourself:

btn.Click += new EventHandler(Button1_Click);

The runat and Text attributes are also only used when you write the control in the markup code. If you add them as attributes, they will end up unchanged in the generated html code, where they have no meaning at all. Use the Text property of the control to set the text:

btn.Text = "Press Button";

---
single minded; short sighted; long gone;

how to find digits and spical charcter in a string

Naveed7274-Oct-07 20:01

Naveed727

4-Oct-07 20:01

i know it is simple but i am hang , i have an string to search in string i have to search digits and spe Cry | :((

cial characters and alphabets how can i put condition in c Sharp in if condition.
i have use it before but now i forget the way how to search in a string.

Re: how to find digits and spical charcter in a string

Andrei Ungureanu4-Oct-07 20:06

Andrei Ungureanu

4-Oct-07 20:06

Try using the Char class. It has some static functions that check if your character is a digit, letter and so on:

foreach (char c in s.ToCharArray())
{
 if (Char.IsDigit(c))
 {
  Console.Write();
 }
}

Do your best to be the best

Re: how to find digits and spical charcter in a string

Christian Graus4-Oct-07 20:06

Re: how to find digits and spical charcter in a string

4-Oct-07 20:06

You can use the Contains method of the strng class, or for more complex searches, use regular expressons, for example, you can use \d to search for any digit in a string, using regex.

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Naveed7274-Oct-07 20:19

Naveed727

4-Oct-07 20:19

but how can i find specific charter like "/" , "\" or something else Sniff | :^)

Re: how to find digits and spical charcter in a string

M. Ahmed4-Oct-07 20:43

M. Ahmed

4-Oct-07 20:43

string email;
for(int i=0; i<=email.Length - 1;i++)
{
if (email[i] == '(' || email[i] == ')' || email[i] == '+' ||
email[i] == '-' || email[i] == '*' || email[i] == '/' ||
email[i] == '=' || email[i] == '&' || email[i] == '%' ||
email[i] == '#' || email[i] == '^' || email[i] == ''' ||
email[i] == '?' || email[i] == '>' || email[i] == '<' ||
email[i] == ';' || email[i] == ':' || email[i] == " ")
{
//do something
}
else
{
//do nothing
}
}

Ahmed

Re: how to find digits and spical charcter in a string

Christian Graus4-Oct-07 23:16

4-Oct-07 23:16

Wow, after three decent answers, you felt the need to post this ? It's really a messy way to go.

M. Ahmed wrote:
for(int i=0; i<=email.Length - 1;i++)

Why not just i < email.Length ? Why not just foreach (char c in email) ? Why not store your special chars in an array, so the code is maintainable, or just use regex ?

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

COM Interoperability

KrunalC4-Oct-07 19:34

4-Oct-07 19:34

I am establishing the COM Interoperability where I'm exposing the functionality in my .net component to client developed in either vb 6.0 or vc++.

I don't have any issue regarding how to implement the COM Interoperabiliy. My problem is, to make my call from client to .net component successful, I have to put my client application also in the same path where my .net component is. If I put my client application in a path other than my .net component path then call is not successful as it fails to find out some DLL dependancy. Can someone tell me how I can run my client application independent from the .net component path.

I hope I'm clear with my question. Thanks & Regards,

Christian Graus4-Oct-07 19:38

4-Oct-07 19:38

If your DLL is a COM dll, then it should register as such, and run from where-ever you like. Are you calling it from C++ or VB6 ? What is the dll it cannot find ?

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

KrunalC4-Oct-07 19:44

4-Oct-07 19:44

My dlls are not COM dll so I'm not registering them with registry. I have a .net component (dll) which can be accessed through COM interop by VB or VC++ client. my .net component is using some dlls so at the runtime (i.e. during client call these dlls could not be found)

Christian Graus4-Oct-07 19:53

4-Oct-07 19:53

OK, well, it doesn't sound to me like you're using COM interop at all. Where does COM come into it, if you're not writing COM dlls ?

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

KrunalC4-Oct-07 20:09

4-Oct-07 20:09

I think we are not talking on the same line. Let me elaborate.

I have a .net application and some of the functionality of this application I have exposed through a dll. I have used COMVisible attribute to expose the functionality in this dll to other application. I register this dll with registry using regasm tool (and not through regsvr32 or something.... that's why I said I'm not registering the dll with registry). Now client developed in VB or VC++ can use this dll (registered as COM with registry) to consume the functionality exposed by my .Net application.

When I put my client application in a path other then my .net component path it fails to find out the path for the dependency dlls.
I hope now question is clear. Sorry for replying to your question is hush hush... Smile | :)

Christian Graus4-Oct-07 20:41

4-Oct-07 20:41

KrunalC wrote:
that's why I said I'm not registering the dll with registry

KrunalC wrote:
registered as COM with registry

OK, spot the contradiction.

If your DLL is COM, it's in the registry and you can put it anywhere. It may still need some dlls ( it sure needs the .NET framework ), and that could be your issue. Hard to say, based on the level of detail you've provided ( I did ask once about the dlls it needs, but you did not give a specific reply )

Christian Graus - Microsoft MVP - C++

"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

KrunalC4-Oct-07 20:48