KeyDown Event Handler Generator Code Disappears

[sush_jd via DotNetMonster.com]

I am using managed VC++ code in a Win Form App. There is a text box -
txtRONumber. I have defined a KeyDown event handler (non-default) for it,
like below. InitializeCompo nent() is being called from Constructor of the
Form Class.

void InitializeCompo nent(void)
{
this->txtRONumber = (gcnew System::Windows ::Forms::TextBo x());

this->txtRONumber->Location = System::Drawing ::Point(151, 35);
this->txtRONumber->Name = L"txtRONumbe r";
this->txtRONumber->Size = System::Drawing ::Size(124, 22);
this->txtRONumber->TabIndex = 0;
this->txtRONumber->KeyDown += gcnew KeyEventHandler (this, &FrmRepairOrder ::
txtRONumber_Key Down);
}

private: System::Void txtRONumber_Key Down(System::Ob ject^ sender,
KeyEventArgs^ e);
Now, I am not sure but either when I add another control to the Form and
rebuild my app or add control, rebuild, close solution, reopen and rebuild,
sometime during any of these the event handler generator gets disappeared
from the InitializeCompo nent() function. I mean this line:

this->txtRONumber->KeyDown += gcnew KeyEventHandler (this, &FrmRepairOrder ::
txtRONumber_Key Down);

Any idea/suggestion?

ThanX.
Sush

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[Pavel Minaev]

On Aug 13, 10:16*pm, "sush_jd via DotNetMonster.c om" <u45310@uwe>
wrote:

I am using managed VC++ code in a Win Form App. There is a text box -
txtRONumber. I have defined a KeyDown event handler (non-default) for it,
like below. InitializeCompo nent() is being called from Constructor of the
Form Class.

void InitializeCompo nent(void)
{
* * * * this->txtRONumber = (gcnew System::Windows ::Forms::TextBo x());

* * * * this->txtRONumber->Location = System::Drawing ::Point(151, 35);
* * * * this->txtRONumber->Name = L"txtRONumbe r";
* * * * this->txtRONumber->Size = System::Drawing ::Size(124, 22);
* * * * this->txtRONumber->TabIndex = 0;
* * * * this->txtRONumber->KeyDown += gcnew KeyEventHandler (this, &FrmRepairOrder ::
txtRONumber_Key Down);

}

private: System::Void txtRONumber_Key Down(System::Ob ject^ *sender,
KeyEventArgs^ *e);

Now, I am not sure but either when I add another control to the Form and
rebuild my app or add control, rebuild, close solution, reopen and rebuild,
sometime during any of these the event handler generator gets disappeared
from the InitializeCompo nent() function. I mean this line:

this->txtRONumber->KeyDown += gcnew KeyEventHandler (this, &FrmRepairOrder ::
txtRONumber_Key Down);

Any idea/suggestion?

Well, yes. Assuming you use the WinForms visual designer,
InitializeCompo nents() method is for generated code - adding your own
code to it is just asking for trouble. If you want to do your own
custom code-based initialization, do it in the constructor after the
call to InitializeCompo nents() (and possibly refactor it into your own
separate method).

[=?Utf-8?B?U3RldmUgQmVobWFu?=]

Are you trying to simulate a "masked textbox" with a "regular textbox" to
avoid the ugliness of masks? I have (with Pavel's help) written code to
accomplish that end.

If that is your goal, I will be glad to share the procedure and code to
implement this, just post a message to this thread. Otherwise ignore this
post!

BTW: Pavel is one truly helpful guy.

"sush_jd via DotNetMonster.c om" wrote:

I am using managed VC++ code in a Win Form App. There is a text box -
txtRONumber. I have defined a KeyDown event handler (non-default) for it,
like below. InitializeCompo nent() is being called from Constructor of the
Form Class.

void InitializeCompo nent(void)
{
this->txtRONumber = (gcnew System::Windows ::Forms::TextBo x());

this->txtRONumber->Location = System::Drawing ::Point(151, 35);
this->txtRONumber->Name = L"txtRONumbe r";
this->txtRONumber->Size = System::Drawing ::Size(124, 22);
this->txtRONumber->TabIndex = 0;
this->txtRONumber->KeyDown += gcnew KeyEventHandler (this, &FrmRepairOrder ::
txtRONumber_Key Down);
}

private: System::Void txtRONumber_Key Down(System::Ob ject^ sender,
KeyEventArgs^ e);
Now, I am not sure but either when I add another control to the Form and
rebuild my app or add control, rebuild, close solution, reopen and rebuild,
sometime during any of the event handler generator gets disappeared
from the InitializeCompo nent() function. I mean this line:

this->txtRONumber->KeyDown += gcnew KeyEventHandler (this, &FrmRepairOrder ::
txtRONumber_Key Down);

Any idea/suggestion?

ThanX.
Sush

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