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For make a Recordset updatable you need to open the table editing all Fields. Some times if you make a select that include oll the index fields, you will must have no problems, but sometimes that don't works.
Is more secure to open the table, (The sheet in your case) in the CRecordset::Open()...
Best Regards
Carlos Antollini.
Sonork ID 100.10529 cantollini
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m_clientset is a Object of CClientSet and CClientSet is class(created with the class wizard). In the Excel table there is one Database(one Sheet) which is called "Kunden". The User-DSN is named CASAK and it´s a Microsoft Excel Driver(97-2000) and is prepared for only this one file.
m_clientset.Open(CRecordset::dynaset,"Kunden",CRecordset::none);
if(!m_clientset.CanUpdate())
AfxMessageBox("no update");
if(!m_clientset.CanTransact())
AfxMessageBox("no transact");
I don't know how shall I continue.
Karsti
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How can i create a string array from a variable amount like for example this:
<br />
int Count = 99;<br />
CString Data[Count];<br />
???
Kuniva
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Use CStringArray, or STL vector <CString>
I vote pro drink
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Could someone clear this up for me. Like tell me all the stuff about it.
"To wonder is to begin to understand"
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SendMessage() sends a message to a window. This means, it places the message in the target window's message queue, waits for it to be processed, and then returns. PostMessage() simply places the message in the target's queue and returns immediately.
/ravi
"There is always one more bug..."
ravib@ravib.com
http://www.ravib.com
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uh, i dont know all about it but i believe it is just a function to send certain messages to a window like this:
<br />
SendMessage(WM_CLOSE,0,0);<br />
This for instance would send a WM_CLOSE message to your window and if that window has a handler for the message to close it, the window will be closed. There's all sorts of messages (see winuser.h). WM means its a window message, you also have messages for buttons and other objects, for instance, button messages start with "BN".
The two 0's are the wParam and the lParam, these are optional parameters, for example if a window receives a WM_COMMAND message it means someone pressed a button or did another command, then you can find what command by looking at the wParam.
Kuniva
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I want my app to launch the standard Internet connection. That one you create to connect to internet.
I know the InternetDial function only... is there another better API or something?
The problem is I don't know one of the parameters:
lpdwConnection
Address of an unsigned long integer value containing the number associated to the connection.
How to get known of that?
------------------------------
©0d3 ©®4©k3® - That's me!
------------------------------
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lpdwConnection is an out parameter. You don't need to know it, it will be returned to you.
You may also want to look into InternetAutodial or InternetGoOnline
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Maybe you should look at the RasDial() function at the MSDN library, and rate my posting if it helped you
Enjoy your life...
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I want to write database application,I want to Edit some of
my recordsets.I used this code but I don't know how to edit
recordsets:
CDatabase aDB;
try
{
aDB.OpenEx("DSN=MyDSN");
CRecordset aRS(&aDB);
aRS.Open(CRecordset::dynaset,"SELECT *from mytable");
while(!aRS.IsEOF())
{
CString strValue;
aRS.GetFieldValue(short(5),strValue);
CString str;
if(/*something here*/)
{
???????????
aRS.Edit();
?????????????
}
aRS.MoveNext();
}
aRS.Close();
aDB.Close();
}
catch(CDBException *ex)
{
TCHAR buf[255];
ex->GetErrorMessage(buf,255);
CString str;
AfxMessageBox(str);
}
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Is there any way to pass a CListBox control to a function so it can be used in the function and so you can use the function with the different listboxes of a dialog. Lets just say for example i want to write a function to clear a CListBox control:
<br />
void ClearListBox(CListBox list)<br />
{<br />
int count = list.GetCount();<br />
CString Data[999];<br />
<br />
for(int i=0;i<=count-1;i++)<br />
{<br />
list.DeleteString(i);<br />
}<br />
and to use it i'd do this:
<br />
ClearListBox(m_Listone);<br />
ClearListBox(m_Listtwo);<br />
...<br />
Whats the easiest way to do something like this?
Kuniva
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list.resetcontent() ?
---
"every year we invent better idiot proof systems and every year they invent better idiots ... and the linux zealots still aren't being sterilized"
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sorry to disappoint you, i'm not one of those idiots, it was the matter that concerned me, the problem was only hypothetically speaking...
Thanks anyways.
Kuniva
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Change it to:
void ClearListBox(CListBox& list) Passing a reference avoids making a copy (which I assume was the problem you ran into).
--Mike--
My really out-of-date homepage
Buffy's on. Gotta go, bye!
Sonork - 100.10414 AcidHelm
Big fan of Alyson Hannigan.
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How about:
void ClearListBox (CListBox* pListBox)
{
ASSERT (pListBox != NULL);
if (pListBox != NULL) {
pListBox->ResetContent();
}
} To use it, do:
ClearListBox (&m_ListOne);
ClearListBox (&m_ListTwo); /ravi
"There is always one more bug..."
ravib@ravib.com
http://www.ravib.com
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Is there any way to pass a CListBox control to a function so it can be used in the function and so you can use the function with the different listboxes of a dialog. Lets just say for example i want to write a function to clear a CListBox control:
<br />
void ClearListBox(CListBox list)<br />
{<br />
int count = list.GetCount();<br />
CString Data[999];<br />
<br />
for(int i=0;i<=count-1;i++)<br />
{<br />
list.DeleteString(i);<br />
}<br />
and to use it i'd do this:
<br />
ClearListBox(m_Listone);<br />
ClearListBox(m_Listtwo);<br />
...<br />
Whats the easiest way to do something like this?
Kuniva
:p
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Instead of passing the whole ListBox, pass a reference to it or pointer. Like this:
void ClearListBox(CListBox &list);
or
void ClearListBox(CListBox *list);
and call it like this:
ClearListBox(m_Listone);
or
ClearListBox(&m_Listone); (in case of pointer)
Philip Patrick
"Two beer or not two beer?" <shakesbeer>
Web-site: www.saintopatrick.com
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You were faster.
I vote pro drink
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1.
void ClearListBox(CListBox* list)
2.
void ClearListBox(CListBox& list)
I vote pro drink
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hehe, thought i should use a pointer there just didn't know how
Kuniva
Want, take, have.
(oh btw, best way of learning some language is by looking at examples, start large!) :p
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Does anyone have a sample program that will create a named pipe using CreateEvent()? I source to a program that uses OpenEvent() and I'm reverse engineering it. I do not have the piece that creates the pipe so I'm not sure how to do it.
Thanks!
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CreateEvent() creates.... an event and not a pipe
to create a named pipe use CreateNamedPipe()
lol
Philip Patrick
"Two beer or not two beer?" <shakesbeer>
Web-site: www.saintopatrick.com
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I agree but it's fairly clear in this code that it's a pipe that they're using. If you want to see the source, go to http://www.eluent.com/source_code.htm and download elgrep.zip. I'm trying to use it for a find-in-files mechanism.
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