Forms designer load error.

[Guest]

I added my own property (a double) to a derived component which can be edited
in the property browser and is serializable. When I enter a small number such
as .00001, the code generated in InitializeComponent() looks like this:

this.StartTime.Increment = 1E-05;

This compiles and runs fine, but the forms designer barfs and won't open the
form. If I change the initialization to this:

this.StartTime.Increment = 1.0E-05;

then the form is happy. The form designer doesn't seem to understand and
exponent without a decimal point.

Any ideas? Here's what I'm using to get/set the value.


protected double increment = 1.0E-6;;
....


[Category("Misc"),
Description("Gets or sets the numeric control increment value."),
DefaultValueAttribute(1.0E-6),

DesignerSerializationVisibility(DesignerSerializationVisibility.Visible),
TypeConverterAttribute(typeof(DoubleConverter))]
override public object Increment
{
get { return increment; }
set { increment = Convert.ToDouble(value); }
}

 

[Frank Hileman]

If you change the property type to double everything may work fine.

Regards,
Frank Hileman

check out VG.net: www.vgdotnet.com
Animated vector graphics system
Integrated Visual Studio .NET graphics editor

 

[Claes Bergefall]

And remove the DesignerSerializationVisibility
and TypeConverter attributes. You don't need them.

/claes

If you change the property type to double everything may work fine.

Regards,
Frank Hileman

check out VG.net: www.vgdotnet.com
Animated vector graphics system
Integrated Visual Studio .NET graphics editor

I added my own property (a double) to a derived component which can be
edited
in the property browser and is serializable. When I enter a small number
such
as .00001, the code generated in InitializeComponent() looks like this:

this.StartTime.Increment = 1E-05;

This compiles and runs fine, but the forms designer barfs and won't open
the
form. If I change the initialization to this:

this.StartTime.Increment = 1.0E-05;

then the form is happy. The form designer doesn't seem to understand and
exponent without a decimal point.

Any ideas? Here's what I'm using to get/set the value.


protected double increment = 1.0E-6;;
...


[Category("Misc"),
Description("Gets or sets the numeric control increment value."),
DefaultValueAttribute(1.0E-6),

DesignerSerializationVisibility(DesignerSerializationVisibility.Visible),
TypeConverterAttribute(typeof(DoubleConverter))]
override public object Increment
{
get { return increment; }
set { increment = Convert.ToDouble(value); }
}

 

[Guest]

Thanks, this looked good until I realized that this parameter is inherited
from a base class where it wouldn't be appropriate to change the type to
double.

If you change the property type to double everything may work fine.

Regards,
Frank Hileman

check out VG.net: www.vgdotnet.com
Animated vector graphics system
Integrated Visual Studio .NET graphics editor

I added my own property (a double) to a derived component which can be
edited
in the property browser and is serializable. When I enter a small number
such
as .00001, the code generated in InitializeComponent() looks like this:

this.StartTime.Increment = 1E-05;

This compiles and runs fine, but the forms designer barfs and won't open
the
form. If I change the initialization to this:

this.StartTime.Increment = 1.0E-05;

then the form is happy. The form designer doesn't seem to understand and
exponent without a decimal point.

Any ideas? Here's what I'm using to get/set the value.


protected double increment = 1.0E-6;;
...


[Category("Misc"),
Description("Gets or sets the numeric control increment value."),
DefaultValueAttribute(1.0E-6),

DesignerSerializationVisibility(DesignerSerializationVisibility.Visible),
TypeConverterAttribute(typeof(DoubleConverter))]
override public object Increment
{
get { return increment; }
set { increment = Convert.ToDouble(value); }
}