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hi
i want to do something like u.. when the user press "enter" after keying in some information in the textbox, it'll open something for display, for my case it's opening a tab page..
i tried the method above but it cant work.. i donno why..
my button is button3, textbox is textBox4 and it will open a tab page called tabPage6..
btw what does (char)13 mean in >> if(e.KeyChar==(char)13) ?
why is there a 13 and must i use it in my program too?
thanks
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13 is the numeric value of the character sent by the enter key.
Absolute faith corrupts as absolutely as absolute power
Eric Hoffer
All that is necessary for the triumph of evil is that good men do nothing.
Edmund Burke
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nidhelp wrote:
i want to do something like u.. when the user press "enter" after keying in some information in the textbox, it'll open something for display, for my case it's opening a tab page..
i tried the method above but it cant work.. i donno why..
my button is button3, textbox is textBox4 and it will open a tab page called tabPage6
you can modify the code above to do what you want
the code did not work because -i think- the tabcontrol not the next control to textbox i mean if textbox tabindex=7 the tabcontrol should be 8
you can do somthing like that
private void Text_KeyPress(object sender, System.Windows.Forms.KeyPressEventArgs e)
{
if(e.KeyChar==(char)13)
{
tabControl1.Focus();
tabControl1.SelectedTab=tabPage2;
e.Handled=true;
}
}
nidhelp wrote:
btw what does (char)13 mean in >> if(e.KeyChar==(char)13) ?
why is there a 13 and must i use it in my program too?
as rob said this the value of enterkey as this numric value and KeyChar type is Char so we need to cast it
in other word convert numric value to char
one of the method to do that is
(char)13 which wil do the conversion
if you want to know the value of other key
look at
Keys Enumeration[^]
MCAD
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i tried modifying again but it still cant work.. i want to ask..
private void Text_KeyPress(object sender, System.Windows.Forms.KeyPressEventArgs e) << do i write Text_KeyPress too? or should i replace Text with something else?
{
if(e.KeyChar==(char)13)
{ //this.GetNextControl(textBox1,true).Focus(); >> do i remove the //?
tabControl1.Focus(); tabControl1.SelectedTab=tabPage2; e.Handled=true;
}
}
as for tabControl1, textBox1 and tabPage2 in the above codes, do i write the relevant names of my tabcontrol, textbox and tabpage of what i want to link to/from?
thanks!
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If you take this code Copy and Paste of course it will Not work you need to modify it
1-Text_KeyPress this function will be called when KeyPress event fire in textbox so change its name to your Function name or copy the body of the function to yours
2-The Control names tabControl1,tabPage2 and textBox1
you need to change this name to yours
MCAD
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i have modified the codes but it still cant work.. can anyone see what's wrong with it?
private void button3_KeyPress(object sender, System.Windows.Forms.KeyPressEventArgs e)
{
if(e.KeyChar==(char)13)
{
this.GetNextControl(textBox4,true).Focus();
tabControl1.Focus();
tabControl1.SelectedTab=tabPage6;
e.Handled=true;
}
}
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Can you explain again what you really want exactlly
Are you want to move to the tab control after you press Enter on button OR text control
The code you write do the folowing
If buuton control key press event fired
Set the focus to the control next to textBox4
And move focus to tabpage and select the page
So what you get when you run the code?
MCAD
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first the user keys in something in the textbox and then he press enter on the keyboard.. after enter key is pressed, i want to move to tabPage6..
this is what i did:
private void button3_KeyPress(object sender, System.Windows.Forms.KeyPressEventArgs e)
{
if(e.KeyChar==(char)13)
{
this.GetNextControl(button3,true).Focus();
tabControl1.Focus();
tabControl1.SelectedTab=tabPage6;
e.Handled=true;
}
}
but when i run the app and i press enter, tabPage6 is not displayed.. only when i click on the button it will be displayed..
thanks again for your kind attention! =)
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Of Course !
because you but the code that move the focus in command button3 keypress event handler
nidhelp wrote:
private void button3_KeyPress(object sender, System.Windows.Forms.KeyPressEventArgs
so to make this happen when key pressed in textbox you must handle keypress event so you have two choice
after subscribe to textbox keypress event like you did in commandButton pass button3_KeyPress to it like the following
this.textBox1.KeyPress += new stem.Windows.Forms.KeyPressEventHandler(this.button3_KeyPress);
or create new function and copy the code in command button
keypress event in it so the subscip line will be like this
this.textBox1.KeyPress += new System.Windows.Forms.KeyPressEventHandler(this.textBox1_KeyPress);
Note:1-you dont have to write this code visual studio
will write it for you all you will do that you select to use existing function or new one
2-in your case you dont need this line of code
this.GetNextControl(button3,true).Focus();
Remove it or comment it by write // before them
MCAD
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Hello everyone!
I;ve been searching everywhere and tried everything and I can't find a way to do the following
assuming i have the following xml element
<e1>
some text here <e2> blah <e2> hello <e3/> another set of text
</e1>
what happens is:
i have a string array of the 3 strings (some text here, blah, and another set of text)
i have another array of 3 objects (e1, e2, e3)
but they are separate... if i want to process them they wouldnt be in order because the order is lost as they are in different arrays..
Any ideas?
Thanks,
Michael
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You have to check the "Do not treat <'s as HTML tags" checkbox when you write your message, to make the xml code visible. Now it is treated as broken html, so the tags doesn't show up in the message.
---
b { font-weight: normal; }
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sorry, first post 
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The xml is broken (or you made a typo?). There is no end tag to the e2 elements.
When does it happen? What do you do? What are you going to use it for?
The xml is not formed in a good way if you want to process the data in it. If you parse the xml, you will get text elements mixed with elements. Similar to:
<e1>
<>some text here </>
<e2> blah </e2>
<> hello </>
<e3/>
<> another set of text</>
</e1>
where the <> elements represent text elements.
---
b { font-weight: normal; }
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I want to display a float on a WinForm, but this only gives an int. Why?
SomeFunc(graphics g)
{
...
float x = 0.0f;
Font theFont(....);
//more stuff...
....
//->HERE!!
g.DrawString(x.ToString(),...
}
Why do I get "0" and not "0.0"?
thanks in advance....
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You did not specify a format string with the ToString() method, so the default formatting in the current culture with minimum number of characters is used.
Absolute faith corrupts as absolutely as absolute power
Eric Hoffer
All that is necessary for the triumph of evil is that good men do nothing.
Edmund Burke
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Rob,
Thanks for your response. I must admit I'm a bit lost.. Here's my code:
////////////////////////////////////////////////////////////////
//Label x axis.
Font graphFont = new Font("Arial",8);
Brush graphBrush = new SolidBrush(Color.BlueViolet);
float x = 0.0f;
String xString = x.ToString();
for(float gx = xIndent; gx <= graphRect.Width; gx += gx)
{
g.DrawString(xString, graphFont, graphBrush, this.ClientRectangle.Left + xIndent, yOrigin + 4);
}
//////////////////////////////////////////////////////////////////
What will give me "0.0" instead of "0"?
-thanks again
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String xString = x.ToString("F1"); //format as floating point with 1 digit to
right of decimal point using the current culture.
Absolute faith corrupts as absolutely as absolute power
Eric Hoffer
All that is necessary for the triumph of evil is that good men do nothing.
Edmund Burke
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You must specify the format by calling the System.Single.ToString(string format) overload.
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Hopefully I am missing the point here, I have a simple question about public functions/classes
Lets says I create Widget application X, due to the complexity of the application the design dictates that some of the functionality should be farmed out into various DLLs. So now I have:
MainWidgetApp.exe
WidgetHelper.dll
WidgetHelper.dll has various Public functions/class that can be referenced by the main app. Once this setup gets deployed out into the real world there is nothing to stop another developer making a reference to the public functions/classes in the DLL.
So the question is how can I stop this from happening whilst still being able to keep the design of an Exe dependent on various DLLs
post.mode = postmodes.signature;
SELECT everything FROM everywhere WHERE something = something_else;
> 1 Row Returned
> 42
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Use an obfuscating tool after deployment. I also know of an application from Microsoft Research that will merge all your .NET assemblies into a single assembly, which can improve startup performance (as there is overhead involved in loading assemblies).
Tech, life, family, faith: Give me a visit.
I'm currently blogging about: Homosexuality in Christianity
Judah Himango
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Well, the other developer won't have the docs, altough he can still see the classes and methods with something like .NET Reflector.
You could implement some kind of authentication, making the app generate an aunthentication ticket that is validated every time in the DLL's methods.
Is it really necessary? You could obfuscate your DLLs, so the other developers won't understand the code if the open the DLL in .NET Reflector.
-- LuisR
Luis Alonso Ramos
Intelectix - Chihuahua, Mexico
Not much here: My CP Blog!
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Its not so much about obsfucating the code
The situation I am in is that I have a helper DLL that does alot of work with XML for an application I produced.
The company I work for has found out that other companies are using the public interface of this DLL to perform processing on their own data.
Obviously we want to stop this, but would prefer to keep the exe and helper dll seperate as it is also used by other applications.
The only solution I can think of, is as you suggested, some type of session/ticket validation but before embarking on that project I was wondering if there was another way
post.mode = postmodes.signature;
SELECT everything FROM everywhere WHERE something = something_else;
> 1 Row Returned
> 42
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The way I'm going to explain is a little crazy...
You can mask the DLL with some other filename (such as Filename.dat) and crypt it with, for example, a 3DES algorithm (provided in .NET Framework!). After this a some kind of bootstrapper is needed to decrpyt, rename, install the DLL in the GAC and start the main application. When the application is closed, the boostrapper removes the DLL from the GAC.
to install the DLL in the GAC you can use the utility provided with the .NET Framework.
My solution is ingenious, isn't it?
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