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Table cells of different colors

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bizzel74

Post subject: Table cells of different colors

Posted: Tue Apr 29, 2014 10:45 am

Joined: Tue Apr 29, 2014 10:21 am
Posts: 27

Two problems I have
I want to partition a page using a table.
Left section has black text on white.
Right section has a green background, images and text.

The left section renders fine but the right section (cell) I'm not sure how to define a custom color for.

Code:

    Const vAlpha As Double = 255.0
            Const vRed As Double = 191.0
            Const vGrn As Double = 233
            Const vBlue As Double = 211
            Dim lGreenColour As New Color(vAlpha, vRed, vGrn, vBlue)

            Dim rightBoxPara1 = row.Cells(1).AddParagraph()
            rightBoxPara1.Format.Alignment = ParagraphAlignment.Right

            rightBoxPara1.Format.Shading.Color = Color.FromRgbColor(255, lGreenColour)
            rightBoxPara1.AddText("Some text ")

Firstly the shading only appears behind the paragraph, not the whole cell.
Secondly the color appears as black - not light green as I require.

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Thomas Hoevel

Post subject: Re: Table cells of different colors

Posted: Tue Apr 29, 2014 11:08 am

PDFsharp Guru

Joined: Mon Oct 16, 2006 8:16 am
Posts: 3096
Location: Cologne, Germany

Hi!

See this post on setting Cell background (not just paragraph background):
viewtopic.php?p=8053#p8053

Re Color: for ARGB use byte values between 0 and 255 (double values make it CMYK (value range for CMYK is 0 through 100)).

_________________
Regards
Thomas Hoevel
PDFsharp Team

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bizzel74

Post subject: Re: Table cells of different colors

Posted: Tue Apr 29, 2014 1:07 pm

Joined: Tue Apr 29, 2014 10:21 am
Posts: 27

After various attempts using bytes, I gave up and used a CMY via

Hex #D7E0C0

http://www.javascripter.net/faq/hex2cmyk.htm

and multiplied the values by 100.
...
Dim lightGreenCMY As New Color(4.02, 0.0, 14.29, 12.16)

I tried using byte values between 0-100 but it always gave shades of grey.

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Thomas Hoevel

Post subject: Re: Table cells of different colors

Posted: Tue Apr 29, 2014 1:22 pm

PDFsharp Guru

Joined: Mon Oct 16, 2006 8:16 am
Posts: 3096
Location: Cologne, Germany

VB is not my area of expertise, so I don't know of this works:

Code:

Dim lGreenColour As New Color(255%, 191%, 233%, 211%)

Maybe this

Code:

Dim lGreenColour As New Color(255 as Byte, 191 as Byte, 233 as Byte, 211 as Byte)

255 is the default value for alpha, so three parameters are enough:

Code:

Dim lGreenColour As New Color(191, 233, 211)

Code:

Dim lGreenColour As New Color(191 as Byte, 233 as Byte, 211 as Byte)

Or maybe

Code:

Const vAlpha As Byte = 255
            Const vRed As Byte = 191.0
            Const vGrn As Byte = 233
            Const vBlue As Byte = 211
            Dim lGreenColour As New Color(vAlpha, vRed, vGrn, vBlue)

You can use lGreenColour directly (no need to call Color.FromRgbColor).

_________________
Regards
Thomas Hoevel
PDFsharp Team

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bizzel74

Post subject: Re: Table cells of different colors

Posted: Thu Nov 13, 2014 10:57 am

Joined: Tue Apr 29, 2014 10:21 am
Posts: 27

Thomas Hoevel wrote:

255 is the default value for alpha, so three parameters are enough:

Code:

Dim lGreenColour As New Color(191, 233, 211)

Just tested this. The third option quoted works.

Thanks.

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