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Hi,first say that if the place for this post isn't correct, sorry but I don't if the correct place is within Java,Vb o Winform xD
Create a usercontrol with a single textbox and one property that set the textbox and get the value of the textbox. This usercontrol is embedded in HTML page. I can change the value of the textbox perfectly but isn't possible access to usercontrol with javascript.
When I create the instance to the usercontrol can get access but out the object tag is impossible .... my code is this ...
VB CODE:
<pre>
Public Class SerialPort
Inherits System.Windows.Forms.UserControl
Public Property Age() As String
Get
Return Me.Age.Text
End Get
Set(ByVal Value As String)
Me.Age.Text = Value
End Set
End Property
End Class
</pre>
HTML CODE:
<pre>
<html>
<body>
<form name="form1">
<object id="SerialPort" classid="UserSerialPort.dll#UserSerialPort.SerialPort" height="399" width="651">
<param name="age" value="48">
</object>
</body>
<br/>
<input type="button" name="btage" value="Age" onClick="getage();">
script language="javascript">
var objserial;
objserial = document.getElementById("Serialport");
function getage()
{
var quedevuelve;
quedevuelve = objserial.age;
alert(quedevuelve);
}
</script>
</form>
</html>
</pre>
The first part, work correctly, send the value "age" with value 48 and this is reflected in the usercontrol, but the next call to function javascript return undefined, I haven't found any solution for it ...
If anyone can help I would greatly appreciate it, a greeting.
modified on Tuesday, June 9, 2009 7:35 AM
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tdc_david wrote: Hi,first say that if the place for this post isn't correct, sorry but I don't if the correct place is within Java,Vb o Winform xD
um.... ASP.NET forum ?
Christian Graus
Driven to the arms of OSX by Vista.
"! i don't exactly like or do programming and it only gives me a headache." - spotted in VB forums.
I can do things with my brain that I can't even google. I can flex the front part of my brain instantly anytime I want. It can be exhausting and it even causes me vision problems for some reason. - CaptainSeeSharp
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ASP.NET no, because the page is only HTML with javascript....
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So that makes you ask in the VB.NET forum??
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Because my code had two parts, the first is in vb.net and second is html/javascript.
I would appreciate that instead of questioning the place of the wire we can concentrate more on the problem ... Thanks.
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Your problem has to do with JavaScript and ASP.NET, not VB.NET. Even after writing VB code for the last 13 years, I couldn't tell you what's wrong with it. It'll work perfectly in the Windows Forms application. I have no idea what mechanism JavaScript uses to communicate with your object.
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1 - The Situation:
I'm Using "Visual Basic 6"
I'm Using "Webbrowser Control"
I'm Using "Microsoft HTML Object Library"
====================================================
2 - What I Want:
*Acees objects (buttons, links, etc) on a IFRAME
*Get all links for example, click in links, etc...
This is easy... but...
===================================================
3- THE PROBLEM:
The page A is in www.abc.com
The page B is in www.xyz.com
The Page A contains one iframe to page B
I Can't acess elements in Iframes with diferrent domains using normal methods.
====================================================
4 - Example:
PAGE A.html (www.abc.com/PageA.html) ==>
<html>
<body>
THIS IS THE PAGE A!<Br>
PAGE A contains one Iframe to PAGE B!<br>
<Iframe id="PageB" name="PageB" src="http://www.xyz.com/PageB.html">
</body>
</html>
====================================================
For example, if a try to get links of page B (iframe) pufff...
"{"Access Denied. (Exception from HRESULT: 0x80070005 (E_ACCESSDENIED))"}"
====================================================
5 - The phrase for the more experienced are:
Nothing is impossible! you know!
How can I then perform this procedure?
Thanks
====================================================
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Hmmm,
This looks like a distinct case of cross site scripting (XSS) security, and for security reason is probably being blocked by the browser (WebBrowser control)
Just a thought as I know nothing about XSS.
Dave
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Probably!
But if you notice, some extensions like:
* IE Developer Toolbar (IE)
* Firebug (FF)
can access any element.
This shows what is possible.
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I would suspect that is because they are browser plug-ins that can interface with all data the browser sees.
You are talking about a web page reading another web page DOM.
[editing now i have re-read your post again to undetstand the problem more!]
Can you read the source attribute of the iframe? if so why not read that directly and access the source data directly?
modified on Tuesday, June 9, 2009 9:59 AM
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You Know any possible solution?
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Hello friends,
I tried converting lower case char to upper case and vice versa
it works fine with the following code
Dim abc As String
Dim xyz As String = String.Empty
Dim a As Char
Console.WriteLine("Enter The String")
abc = Console.ReadLine()
For Each a In abc
Dim b As Char
If Asc(a) > 64 And Asc(a) < 91 Then
b = Chr(Asc(a) + 32)
ElseIf Asc(a) > 96 And Asc(a) < 123 Then
b = Chr(Asc(a) - 32)
End If
xyz = xyz + b
Next
Console.WriteLine(xyz)
Console.ReadLine()
case 1 Input : ABCdef
Output: abcDEF
case 2 Input :ABC def GHI
Output:abccDEFFFghi
Desired Output:abc DEF ghi
The issue is maintaining the whitespace between the strings, with the current code the the whitespaces are replaced by the previous charcter in the output.
I like the whitespaces between the strings to be maintained .
Thanks In Advance
Praveen
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Member 4514218 wrote: If Asc(a) > 64 And Asc(a) < 91 Then
b = Chr(Asc(a) + 32)
What an ugly, ugly mess. Char.IsAlpha is what you need, from memory. And Char.ToLower.
How about abc = abc.ToLower()
Member 4514218 wrote: If Asc(a) > 64 And Asc(a) < 91 Then
b = Chr(Asc(a) + 32)
ElseIf Asc(a) > 96 And Asc(a) < 123 Then
b = Chr(Asc(a) - 32)
End If
xyz = xyz + b
The core flaw in your logic is that you need another else.
else
b = a
Otherwise, anyting that is not a lower or uppercase character, is lost.
you look like you're coming from VB6, that's where all the nasty habits are coming from. Forget VB6, learn to use VB.NET properly. And, learn to use the debugger, if you stepped through this code, you'd have seen in no time what the issue was.
Christian Graus
Driven to the arms of OSX by Vista.
"! i don't exactly like or do programming and it only gives me a headache." - spotted in VB forums.
I can do things with my brain that I can't even google. I can flex the front part of my brain instantly anytime I want. It can be exhausting and it even causes me vision problems for some reason. - CaptainSeeSharp
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very simple...just add one 'Else'... as below...!
Dim abc As String
Dim xyz As String = String.Empty
Dim a As Char
Console.WriteLine("Enter The String")
abc = Console.ReadLine()
For Each a In abc
Dim b As Char
If Asc(a) > 64 And Asc(a) < 91 Then
b = Chr(Asc(a) + 32)
ElseIf Asc(a) > 96 And Asc(a) < 123 Then
b = Chr(Asc(a) - 32)
Else
b = a
End If
xyz = xyz + b
Next
Console.WriteLine(xyz)
Console.ReadLine()
Enjoy!
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Thanks binjafar
It is simple and effective
Regards
Praveen
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my pleasure.... 
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Dim ca As Char() = TextBox1.Text.ToCharArray
TextBox1.Text = ""
For Each c As String In ca
Select Case Char.IsUpper(c)
Case True
TextBox1Text &= c.ToLower
Case False
TextBox1.Text &= c.ToUpper
Case Else
TextBox1.Text &= c
End Select
Next
My advice is free, and you may get what you paid for.
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Member 4514218 wrote: Dim b As Char
replace this by Dim b As Char = a
the logic is: output char equals input char, except when it is an upper/lowercase letter.
And please use PRE tags to keep code readable.
Luc Pattyn [Forum Guidelines] [My Articles]
The quality and detail of your question reflects on the effectiveness of the help you are likely to get.
Show formatted code inside PRE tags, and give clear symptoms when describing a problem.
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What code can I use to read the column and row position of the blinking cursor-thing in a multiline textbox? I am trying to replicate the bottom right corner of windows notepad when you have status bar visible, by default it usually says: "Ln 0, Col 0"
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I'm not sure you can do it directly. Use the Lines property and iterate through until you find the current line based on the current Selection. You might need to take into account the CRLF at the end of each line.
Panic, Chaos, Destruction.
My work here is done.
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Yes i sort of see how that would work something like:
line = textbox.Text.IndexOf(vbCrlf).compareto 'something
column = textbox.Lines.Length '.something / something
not sure how to go about it though it does seem possible
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err no, Lines gives you an array of all the liens in the control, something along the lines of:
position = textbox.SelectionStart
line = 0
while (position > textbox.Lines[line].Lenth
position = position - textbox.Lines[line].Lenth
line = line + 1
Loop
col = position
Note: this has not been tested.
Panic, Chaos, Destruction.
My work here is done.
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Hey thanks that really helped.
column is still wrong though.
also when the textbox.SelectionStart is on the last line, it causes an out of range error, other than that it works great.
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look at adding the extra characters for the end of line.
Panic, Chaos, Destruction.
My work here is done.
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Hi,
i've made a control which is supposed to drop down on button click. it works perfect if i place it out of table layout, but if i drag drop it in a form with table layout panel... drop down doesnt show...
possibly because of control's parent? OR z-order?
any help will be appriciated....
thnx!
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