Formatting SharePoint Columns with RGB Color

I wrote about ensuring high contrast between text and the background of Visio shapes in my last article. The RGB values actually came from an imported SharePoint list that has a lookup to a list that contains the RGB values of named colours. Having solved how to display the correct text colour for high contrast in Visio, I wanted to the same in a SharePoint column, but first I had to learn how to use the RGB values to format the background colour.

SharePointColumnColourFormat.png

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Ensuring High Contrast Text in Visio Shapes

I am working on a project where I need to ensure high contrast of the text in the Visio shapes for accessibility. At first, I attempted to write my own formula but a colleague pointed my to a website that confirms if the contrast is acceptable ( contrast-ratio.com ), and showed me that a few of my examples failed. So the search was on for a better formula than my own. This lead me to a Stack Exchange answer with just what I was looking for (Formula for Color Contrast between Text and Background). All I needed to do was to convert this into a ShapeSheet formula or two, and then I could apply it to the text inside the shapes.

VisioColorMap

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Changing Visio Shape Size and Angle with Linked Data

I was recently laying out a computer room floor plan to scale in Visio, from survey data of the cabinets\racks within it, and it occurred to me that I could work a bit smarter than I first thought. Originally, I was going to just add lots of rectangles, size them, rotate them, and label each them with their name. Then I thought, why not use the Width, Depth and Name columns from the survey data to do most of the work for me? It was so simple to do, and only took a few minutes, so I thought I would share my methodology because it demonstrates how easy it is to work smarter with Visio….

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Prototyping #Visio ShapeSheet Formulas in #Excel

I am working on an application where the horizontal axis of the Visio page represents dates from left to right. In fact, the each of the fixed horizontal grids are 1 day, and I need to have shapes that understand the begin date at the left edge of the shape, and the end date at the right edge of the shape. There is, therefore, a number of elapsed days representing by the width of the shape. However, the underlying grid can either represent all days, or it can be changed to only represent weekdays by omitting the weekends. I struggled to find the best formula to calculate the elapsed days or weekdays between two dates in Visio ShapeSheet formulas, so I turned to Excel to provide an inspiration. The Visio ShapeSheet is modelled on the Excel worksheet, and formulas can be entered into the cells in much the same way. However, the available functions differ since Excel is mainly used for arithmetic and statistics, but Visio is used for graphics and data. In this article, I demonstrate how I used C# and Excel to construct and test formulas for use in a Visio shape.

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Replacing Images in #Visio Shapes by Changing Data

I wrote an article last year about Swapping Images in a #Visio Shape manually, but I want to be able to do this whenever a Shape Data value changes. This is because I use I invariably use shapes linked to data. I also want to be able to have multiple images within a single grouped shape, and all of them changing when their referenced Shape Data values change. I believe that this will be more adaptable for a lot of scenarios than trying to repurpose Data Graphic Icon Sets ( see  Make Your Own Visio Data Graphic Icons Sets … automatically). I also discovered that the Shape.ChangePicture(…) function can just as easily work with urls as it can with network file paths, so even more possibilities are opened up! For example, the Visio Online JavaScript API has the ability to overlay an image (see ShapeView.addOverlay(…)).

So, I have created some macros to provide quick and easy selection, positioning and updating of images within a group shape.

personphotosbydata

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Fixing the layers problem with callouts in #Visio

I recently re-discovered an issue with callouts in Visio for a couple of projects that I am working on, and so I had to find a fix. The problem is that the callouts become dis-associated from their target shapes if either the layer visibility of the callout or the target shape is toggled off, and then back on again. This will result in a diagram with shapes without any connected callouts, so moving any of the target shapes will not move their associated callouts with them! I initially came up with a workaround that involved some jiggery-pokery with sub-shapes and layers, but it seems that the problem could have easily been averted if Microsoft had incorporated one specific User-defined Cell from the very start…

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Temporary Fix for Data Refresh in #Visio Click-2-Run

Visio is an enormous application with literally millions of lines of code, so it is inevitable that bugs creep in for time to time, and can lay dormant .. until you really need it! Such an incident happened to me during a project for a large organisation where the latest and greatest build and versions are held up by the internal IT departments until they are sure that there is absolutely nothing hidden inside. In this project, I was given a laptop with Visio Pro for Office 365 to work with … not a problem, even though that moniker already told me that this was a seriously out of date edition, since it has been called Visio Online Plan 2 for quite a while. Anyway, I developed a solution that relies heavily on linked SharePoint lists and document libraries, using a view. The automatic name of these views are very verbose, so I consistently renamed them. Also, I had the same SharePoint Document library view linked more than once, so that I could link multiple rows to shapes, so renaming was, and is, absolutely essential. Several weeks went by, and my solution was working fine, until one day last week, my colleague told me that the Data / Refresh All was failing for him, and for other users. A review of his laptop showed that his Visio version had been updated to build 1708 from 1609 and the refresh was reverting the carefully renamed data recordsets back to the underlying SharePoint view name. My own personal laptop, not the client’s, is at build number 1808, so I will get the real fix from Microsoft soon via the normal channel updates for Click-to-Run.

DataRefreshNameError

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