Hi.I'm new to working with visio control in c#.net.In my application i need to identify the shapes connected by a given connector.Also when i select a shape i need to know to which shape its connected.Can anyone suggest how to do this??
Hi Joules,
It's not super straight-forward, but it's not rocket science, thankfully. You just need a few hints to get going in the right direction.
The info you need is buried in the conference materials from my presentation at the 2008 Visio Conference. See the post: Visio Solution Developer Pain Points Presentation (http://www.visguy.com/2008/02/06/visio-solution-developer-pain-points-presentation/) and download the stuff.
Determining connections is on my article-TODO list, to make it more accessible to all, but I haven't gotten round to it.
Also, here's some quick tips, maybe all you need to get going:
- A connector will have a Connects collection
- If it's glued at both ends, there will be two Connect objects in this collection
- Examine the ToSheet property of each Connect object to see to which shape the connector is glued
- Examine the FromCell property of each Connect object to see from which end of the connector the Connect object comes
- Now that you understand the Connect object, select a connected-to shape (ie: a box), and examine it's FromConnects collection. This is simply the other side of a connector's Connects collection.
- With these tips and terms in mind, download the "Visio 2007 SDK" and check out the handy-dandy Code Samples Library and look for a sample to save you time (samples in VB, VB.NET and C#!)
I'm positive I've seen some C for this, I was looking to do this using VBA, and all I could find was C code, now i need C and I cant find it anymore... I'll look around some more. There's some sample code out there I'm positive!
hi,
Thanks for the help. I'm just posting a sample code here so that people can refer if needed :)
In the code , for each connector I've displayed the shapes that are glued to that connector.
Visio.Connects visconnects;
Visio.Shape visshape;
Visio.Shape toshape;
Visio.Connect visconnect;
Visio.Page currentPage = axDrawingControl1.Document.Pages[1];
Visio.Shapes shs = currentPage.Shapes;
for (int i = 1; i <= shs.Count; i++)
{
visshape = shs[i];
//Only if the shape is a connector
if (visshape.LineStyle == "Connector")
{
visconnects = visshape.Connects;
MessageBox.Show("Connector : " + visshape.Name);
for (int k = 1; k <= visconnects.Count; k++)
{
visconnect = visconnects[k];
toshape = visconnect.ToSheet;
MessageBox.Show(toshape.Name);
}
}
}
Thanks joules!
There's another quick check that helps in connector chasing:
If(shp.OneD = 0)....
Visio shapes are either 1D or 2D. Connectors are 1D, boxes are 2D. A lot of times, when analyzing connectors, it helps to look for all the 2D shapes, or all the 1D shapes, depending on which way you are going about it.
Cheers,
- Chris
I recently do my work with issn barcode (http://www.keepautomation.com/products/net_barcode/barcodes/issn.html) and i need to make a diagram contain barcode using c# (http://www.keepautomation.com/how_to/csharp/).I am creating a visio diagram but need to check if existing shapes are connected. I wrote a method with 3 different ways to determine this. I couldn't find any shapes methods to do this directly. Here's what I came up with. I am preferable to the 3rd method because it doesn't involve iteration. Any more suggestions