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Dont call the Clear method
Thanks & Regards,
Pramod
"Everyone is a genius at least once a year"
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Hi,
clear is outside the loop - it has no effect.
Please tryout the snippet before.
Tnx
Frank
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write this before the loop
this.rTB_Info.Focus();
sameer
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Hi Sameer,
Great, it works !!! 
this was the deciding line of code.
Tank you
Regards Frank
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I tried ur code it scrolls to the current line
wht's wrong there?
wht more do u want?
Thanks & Regards,
Pramod
"Everyone is a genius at least once a year"
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The ScrollToCaret method only works if the RTB has the input focus, so...
(quit putting all the damn this in your code, you don't need them...)
rTB_Info.SelectionStart = rTB_Info.Text.Length;
rTB_Info.Focus();
rTB_Info.ScrollToCaret();
Dave Kreskowiak
Microsoft MVP - Visual Basic
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It's already in there. It's the first Note listed in the documentation:
Note
This method has no effect if the control does not have focus or if the caret is already positioned in the visible region of the control.
Dave Kreskowiak
Microsoft MVP - Visual Basic
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 We've got the same saying in the States. In MS' documentation, it most definately applies!
Dave Kreskowiak
Microsoft MVP - Visual Basic
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hi,i have a Databound Datagrid that needs to be sorted by two columns at run time eg
column DISTANCE(order must be ascending )and Column STATUS(must appear in this order good,bad,ugly)
if any of you can refer me to articles or samples that work the same way
i hope it makes sense
thanks
regards paula
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Aoa,
i want the code or C# algo,which remove extra pixels & thinn or skelton the image.
for example in the image there are double or triplr lines,i want to reduce this lines into a single line
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Hello,
How can I ignore the keys the user inserts into a textbox ?
I've tried signing up to the keydown event, end use the e.SuppressKeyPress = true to achieve it in .NET 2005, but this is not supported by .NET 2003.
Maybe use the Handle property for this ?
Thanks, Eyal
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use KeyPress Event and make
e.handle=true;
sameer
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hi
Iam having a problem in focussing button on a form,
in the form i have 1 rich textbox and a button before showing the form i changed the text of RTB like this
FrmHelp frmHelp = new FrmHelp();
frmHelp.HelpTextBox.Text = "This is help";
frmHelp.ShowDialog();
and in the load event i changed the focus to button
private void FrmHelp_Load(object sender, EventArgs e)
{
buttonClose.Focus();
}
but the button didn't get focus and the rich textbox still had a focus on it the text "This is help" has been highlighted(selected),
How to override this. even i checked the Focused property of Both control it says False.
Thanks and Regards,
Srini
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Hi,
Try also buttonClose.Select() (after the .Focus() or before )
I remember thats sometimes terrible to set a focus
Good luck
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Thats work perfectly,
Thanks and Thank you very much,
This is a very strange problem, i Think this problem mainly occurswhen we assign some text to text control and try to focus on some other control.
Thanks
Srini
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use this
buttonClose.Select();
buttonClose.Focus();
sameer
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hi
you can try to set the tabIndex property of the button to 0 and the tabIndex property of the textbox to 1. i think this will automaticlly give the focus to the button when the form loads.
If you need any more help contact me on MSN: jamilaboukhalil@hotmail.com
Jamil Abou Khalil
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Can anyone tell me why is this scenario not working?
A tabcontrol's paint event draws a rectangle and simultaneously a thread should update a label on that tabcontrol. Thread is created when the form is loaded. but its not working.....
Label is not shown untill the drawing is completed.
i cant figure out, what did i miss???
Any suggestions
Thanks in advance
-- modified at 2:37 Tuesday 17th October, 2006
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Even if a separate thread is updating the label, the event for redrawing it is executed in the main thread.
---
b { font-weight: normal; }
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Thanks ,
but how can this be achieved. i need to do both the things in parallel,,what do u suggest?
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If you draw a rectangle and then update the label, the time difference should not be noticable. Most of the time they would both be drawn within the same page refresh, so there would be no delay at all. What is is that you do that is taking time?
---
b { font-weight: normal; }
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i hope this.Update(); will solve your problem
sameer
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Hello, developers!
I have a problem, and i don't know how to solve it. Below i describe this situation:
I have a COM object(in C++) without TypeLIB and I there is a late bound client in C#.NET. During work
a COM object send different events to client. And i don't know, how i can recieve this events in C#. If a had a C++ client, i would write this code:
#include "stdafx.h"
#include <basetyps.h>
#include
#include
#include
#include
#include
#include
using namespace std;
_COM_SMARTPTR_TYPEDEF(IConnectionPointContainer, __uuidof(IConnectionPointContainer));
_COM_SMARTPTR_TYPEDEF(IConnectionPoint, __uuidof(IConnectionPoint));
_COM_SMARTPTR_TYPEDEF(IEnumConnectionPoints, __uuidof(IEnumConnectionPoints));
class CoFomatikEventSink : IDispatch
{
public:
enum DISPIDS
{
DISPID_OnStateChanged = 1,
DISPID_OnProgressChanged,
};
STDMETHODIMP_(ULONG) AddRef();
STDMETHODIMP_(ULONG) Release();
STDMETHODIMP QueryInterface(REFIID riid, void** ppv);
STDMETHODIMP GetTypeInfoCount(UINT *pctinfo);
STDMETHODIMP GetTypeInfo(UINT iTInfo, LCID lcid, ITypeInfo **ppTInfo);
STDMETHODIMP GetIDsOfNames(REFIID riid, LPOLESTR *rgszNames, UINT cNames, LCID lcid, DISPID *rgDispId);
STDMETHODIMP Invoke(DISPID dispIdMember, REFIID riid, LCID lcid, WORD wFlags, DISPPARAMS *pDispParams, VARIANT *pVarResult, EXCEPINFO *pExcepInfo, UINT *puArgErr);
CoFomatikEventSink() : cookie(0), refCount(1) {}
~CoFomatikEventSink() { Disconnect(); }
bool Connect(IUnknownPtr object);
bool Disconnect();
// Event Handlers
void OnStateChanged(IUnknownPtr state);
void OnProgressChanged(UINT value, const BSTR text);
private:
IConnectionPointPtr defaultConnectionPoint;
ULONG cookie;
ULONG refCount;
};
STDMETHODIMP_(ULONG) CoFomatikEventSink::AddRef(void)
{
return ++refCount;
}
STDMETHODIMP_(ULONG) CoFomatikEventSink::Release(void)
{
if(--refCount == 0)
{
delete this;
return 0;
}
return refCount;
}
STDMETHODIMP CoFomatikEventSink::QueryInterface(REFIID riid, void** ppv)
{
if(riid == IID_IUnknown)
*ppv = (IUnknown*)this;
else
if(riid == IID_IDispatch)
*ppv = (IDispatch*)this;
else
{
*ppv = NULL;
return E_NOINTERFACE;
}
((IUnknown*)(*ppv))->AddRef();
return S_OK;
}
STDMETHODIMP CoFomatikEventSink::GetTypeInfoCount(UINT *pctinfo)
{
*pctinfo = 0;
return S_OK;
}
STDMETHODIMP CoFomatikEventSink::GetTypeInfo(UINT iTInfo, LCID lcid, ITypeInfo **ppTInfo)
{
*ppTInfo = NULL;
return E_NOTIMPL;
}
STDMETHODIMP CoFomatikEventSink::GetIDsOfNames(REFIID riid, LPOLESTR *rgszNames, UINT cNames, LCID lcid, DISPID *rgDispId)
{
for(UINT i = 0; i < cNames; ++i)
{
if(_wcsicmp(rgszNames[i], OLESTR("OnStateChanged")) == 0)
{
rgDispId[i] = DISPID_OnStateChanged;
}
else
if(_wcsicmp(rgszNames[i], OLESTR("OnProgressChanged")) == 0)
{
rgDispId[i] = DISPID_OnProgressChanged;
}
else
return DISP_E_UNKNOWNNAME;
}
return S_OK;
}
STDMETHODIMP CoFomatikEventSink::Invoke(DISPID dispIdMember, REFIID riid, LCID lcid, WORD wFlags,
DISPPARAMS *pDispParams, VARIANT *pVarResult, EXCEPINFO *pExcepInfo, UINT *puArgErr)
{
switch(dispIdMember)
{
case DISPID_OnStateChanged:
{
if(pDispParams -> cArgs == 1)
{
OnStateChanged(pDispParams->rgvarg[0].punkVal);
return S_OK;
}
}
break;
case DISPID_OnProgressChanged:
{
if(pDispParams -> cArgs == 2)
{
OnProgressChanged(pDispParams->rgvarg[0].uintVal,pDispParams->rgvarg[1].bstrVal);
return S_OK;
}
}
break;
}
return DISP_E_UNKNOWNINTERFACE;
}
bool CoFomatikEventSink::Connect(IUnknownPtr object)
{
IConnectionPointContainerPtr connectionPointContainer = object;
IEnumConnectionPointsPtr enumConnectionPoints;
ULONG numConnectionPoints = 0;
connectionPointContainer->EnumConnectionPoints(&enumConnectionPoints);
if(enumConnectionPoints->Next(1, &defaultConnectionPoint, &numConnectionPoints ) == S_OK)
{
if(defaultConnectionPoint->Advise(this, &cookie) == S_OK)
{
cout<<cookie<<endl;
return true;
}
defaultconnectionpoint="NULL;
cookie" =="" 0;=""
}
return="" false;
}
bool="" cofomatikeventsink::disconnect()
{
if(cookie)
{
defaultconnectionpoint-="">Unadvise(cookie);
defaultConnectionPoint = NULL;
cookie = 0;
}
return true;
}
void CoFomatikEventSink::OnStateChanged(IUnknownPtr state)
{
/* OnStateChanged handler HERE */
}
void CoFomatikEventSink::OnProgressChanged(UINT value, const BSTR text)
{
/* OnProgressChanged handler HERE */
}
// ===========================================================================
int main(int argc, _TCHAR* argv[])
{
::CoInitialize(NULL);
{
IUnknownPtr fomatik;
fomatik.CreateInstance("MyCOM.Application");
CoFomatikEventSink* ev = new CoFomatikEventSink();
ev->Connect(fomatik);
ev->Release();
}
::CoUninitialize();
}
But i don't know how i can implement IDispatch in C#? Yes, i know, that RCW and CCW do all work to marshal parameters and call functions, and implement IUnknown and IDispatch, but in my application it is neccesary to implement IDispatch myself, because i don't have a TypeLIB for COM object and that's way i can't cache DispIDs from another source.. I have been trying to write this event handler already 3 days, but unsuccessful!!!!
Plese, if anybody know how to solve this problem, help!
Big, hearty thanks in advance!!!!
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