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Hi,
I added the activeX to the Toolbox and then dragged it onto the form but when I look as it's properties, it only shows the HTML properties, I can't see a way to give a variable which I can access from functions in the cs file.
Any ideas ?
Cheers
Users.
Can't live with 'em, can't kill em!
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If you dropped it on the form, it created a variable for you. VS usually assigns the name ax[componentName][number], so if you dropped the WebBrowser control, it would generate a variable named axWebBrowser1.
Tech, life, family, faith: Give me a visit.
I'm currently blogging about: Cops & Robbers
Judah Himango
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I tried adding the WebBrowser to the form, and nothing was created.
It does as you say if you drop the control onto a windows form but not a web form, any ideas ?
Users.
Can't live with 'em, can't kill em!
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Lol...yeah, the WebBrowser controls is a Windows forms control, not a web forms control. That is where you're going wrong.
Tech, life, family, faith: Give me a visit.
I'm currently blogging about: Cops & Robbers
Judah Himango
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I think we are talking via crossed wires.
My original problem is that when I add any ActiveX control to a Web form, I dont know how to access it from the c# code as it does not create a variable.
I used the web control as an example to prove to myself that if you add a control to a windows form, a variable is created.
I do not intend to use a web control on a web form, that would be silly I agree.
Is it possible to do what I want or can I only add special web form controls to web forms ?
Hope you can help,
Cheers
Users.
Can't live with 'em, can't kill em!
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I don't think you can add an ActiveX control to a web form. My understanding is there is something extra that needs to be done. I don't know though, you should ask that question in the ASP.NET forums.
Tech, life, family, faith: Give me a visit.
I'm currently blogging about: Cops & Robbers
Judah Himango
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Hi All,
I'm new to C#, my first application should read a binary file in which each element is defined as a 'struct' in a C-style include file. This file is shared with C applications so I cannot modify it to fit the C# syntax.
What's the best way doing this?
TIA,
Cabbi
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You can redefine the struct in C# and use it from there as if it were a C struct. For instance, here is a a C# equivalent to widely used POINT C struct:
[StructLayout( LayoutKind.Sequential )]
public struct POINT {
public int X;
public int Y;
}
I can now pass this POINT to a C function that takes the POINT struct as defined in C. Note that the LayoutKind.Sequential is necessary for interoping with C code; this attribute tells the CLR to layout the struct in memory exactly as shown in code, which is necessary for C to work with.
I recommend using this site[^] for correct interop definitions and practices.
Tech, life, family, faith: Give me a visit.
I'm currently blogging about: Cops & Robbers
Judah Himango
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Hi, codeprojecter
I use "checkboxlist" to show some information of the registeruser
-------------------------------------------------
for example:
I have 4 items in the checkboxlist,when first run there are 4 items in the page ,and when I check 2 and then click the submit button, the page will refresh and just show me the checked items,don't show unchecked items.
-------------------------------------------------
I don't know how to do this thing,
my code is below:
private void submit_Click(object sender, System.EventArgs e)
{
for (int i=0; i<(this.chkboxGroup.Items.Count-1);i++)
{
if (this.chkboxGroup.Items[i].Selected)
{
//I don't know the code here,please help me!!
}
}
}
-------------------------------------------------------------------------
Thank you very much!
shanzy
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Try this:
private void submit_Click(object sender, System.EventArgs e)
{
for (int i = 0; i < this.chkboxGroup.Items.Count; i++)
{
if (this.chkboxGroup.Items[i].Selected)
{
this.chkboxGroup.Items[i].Remove(this.chkboxGroup.Items[i]);
i--;
}
}
}
www.troschuetz.de
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Thank you for your replay!
But, the "chkboxGroup.Items[i]" doesn't have the method "Remove"
shanzy
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Ups, my fault 
this.chkboxGroup.Items.Remove(this.chkboxGroup.Items[i]);
www.troschuetz.de
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Thank you for your replay!
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I need a robust way to insert some hidden information of 2 bytes in a text file which should not be visible in a normal text editor,I can't use Alternative data streams as when we unzip them the info gets lost,Plz help!!
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There's no way to completely *hide* 2 bytes, but you can crypt them or scramble them so in the notpad will be shown 2 little squares...
CodeProject's Server wrote:
HTTP/1.1 500 Server Error
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Is it possible (e.g. with reflection or by using some debugging-/profiling-API) to write a class that is aware of the context where it is instantiated?
E.g. something like this:
class SomeClass {
void A( int i, string s )
{
ContextDumper cd = new ContextDumper();
string d = cd.Dump();
...
}
}with function A being called like this:
void B()
{
SomeClass sc = new SomeClass();
sc.A( 10, "hello" );
}And cd.Dump() returning a string like this:
Hi, this is ContextDumper.
I was called inside the following function
with the following paramters:
SomeClass.A( int i=20, string s="hello" )Is this possible? If yes, how?
--
Affordable Windows-based CMS for only 99 €: try www.zeta-producer.com for free!
-- modified at 8:33 Wednesday 21st September, 2005
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Look at system.diagnostics.StackTrace and StackFrame.
I can imagine the sinking feeling one would have after ordering my book,
only to find a laughably ridiculous theory with demented logic once the book arrives - Mark McCutcheon
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Yes, thanks; but these classes do not tell me with which current parameter values the method is called.
--
Affordable Windows-based CMS for only 99 €: try www.zeta-producer.com for free!
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The only way I know to get the parameters like this is to use enterpriseServices and setup a context for the object. Here is an example of the technique.
http://www.codeproject.com/dotnet/ContextBoundModel.asp[^]
I don't know of any way to get the actual parameters in regular code.
I can imagine the sinking feeling one would have after ordering my book,
only to find a laughably ridiculous theory with demented logic once the book arrives - Mark McCutcheon
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Hi all!
I need to create application to capture video and audio. To do this I use WMEncoder SDK. I use video tape recorder device connected through a COM port using the Sony RS422 protocol. Everything is good - I can capture and control my device. But I have a problem, when I try to change settings of encoder instance. Here is source:
<br />
WMEncoder Encoder;<br />
IWMEncSourceGroupCollection SrcGrpColl;<br />
IWMEncSourceGroup2 SrcGrp;<br />
IWMEncVideoSource2 SrcVid;<br />
IWMEncSource SrcAud;<br />
IWMEncDeviceControlCollection DCColl;<br />
IWMEncDeviceControl DControl;<br />
IWMEncDeviceControlPlugin DCPlugin;<br />
Encoder = new WMEncoder();<br />
SrcGrpColl = Encoder.SourceGroupCollection;<br />
SrcGrp = (IWMEncSourceGroup2) SrcGrpColl.Add("SG_1");<br />
SrcVid = (IWMEncVideoSource2) SrcGrp.AddSource(WMENC_SOURCE_TYPE.WMENC_VIDEO);<br />
SrcAud = SrcGrp.AddSource(WMENC_SOURCE_TYPE.WMENC_AUDIO);<br />
SrcVid.SetInput(_video, "Device", "" );
SrcAud.SetInput(_audio, "Device", "" );
IWMEncProfileCollection ProColl = Encoder.ProfileCollection;<br />
for (int i=0; i<ProColl.Count; i++)<br />
if (ProColl.Item(i).Name == _profile)<br />
{<br />
SrcGrp.set_Profile(ProColl.Item( i ));<br />
break;<br />
}<br />
DCColl = SrcGrp.DeviceControlCollection;<br />
DControl = DCColl.Add();<br />
DControl.SetInput(_device, "DeviceControl", "");<br />
Encoder.PrepareToEncode(true);<br />
DCPlugin=(IWMEncDeviceControlPlugin)DControl1.GetDeviceControlPlugin();<br />
So, when I try to change my settings (_video, _audio, _profile or _device) and do Encoder.PrepareToEncode(true) I catch an exception "It was not possible to find a valid source plug-in for the specified source". I try to set null for all of using vars after doing Encoder.PrepareToEncode(false), but have no result. Maybe somebody do something like this? Thanx for all advices.
_sergei
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While reading a large textfile with, I am going to implement a Progressbar. My question is how to determine the MAX value for this progressbar? So I can update the progressbar dynamically, while application is reading textfile.
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Get the size of the file before you open it.
---
b { font-weight: normal; }
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Sure, but how to determine actual file block and block size?
StreamReader and TextReader don't support a method to do it.
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Block size? What do you mean?
---
b { font-weight: normal; }
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File fIn = new File<br />
("C:\\dotNET Projects\\Namespaces\\EnumFiles\\ReadMe.txt");<br />
StreamReader strm = fIn.OpenText();<br />
<br />
string sLine;<br />
do<br />
{<br />
sLine = strm.ReadLine();<br />
AddItem(sLine);<br />
}<br />
while (sLine != null);<br />
strm.Close();<br />
<br />
Look at the code posted above. After sLine = strm.Readline, I want update the progressbar value but don't know the MAX value of this one before.
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