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MELSOFT
A
PPENDICES
(3) Designer Display May be Failed
(a) Symptom
When a Visual Studio
R
.NET project program is created, opening a form
including an ACT control with the designer may cause an error. (For
distinguishing Visual Studio
R
.NET projects, refer to "Appendix 9.6
Distinguishing Types of Projects".)
(b) Occurrence Cause
This problem occurs if a form including an ACT control is opened with the
designer in a Visual Studio
R
.NET project when DEP is enabled to ACT
controls.
The following shows the cases that DEP is enabled.
DEP Configuration
Creation environment
OptIn, OptOut AlwaysOn
Visual Studio
R
2008
Windows Vista
R
,
32-bit Windows
R
7
Visual Studio
R
2005
Visual Studio
R
2008
Windows
R
XP
Visual Studio
R
2005
-
: Causes problems -: Does not causes problems
(c) Workaround
To workaround this problem, change the DEP configuration as follows.
Creation environment DEP Configuration
Visual Studio
R
2008 AlwaysOff Windows Vista
R
,
32-bit Windows
R
7
Visual Studio
R
2005
Visual Studio
R
2008
Windows
R
XP
Visual Studio
R
2005
Other than AlwaysOn
(When AlwaysOn:
Change to OptIn,
When other than AlwaysOn:
No change necessary)
When the DEP configuration cannot be changed, this problem can be
avoided by creating a program using an ACT control without pasting it to a
form (Reference).