Solidworks API and Winforms C# swApp (Standalone)

Question

This is what solidworks tells you to do to reference swApp, but I keep getting NullReferenceException on the line that it is referenced.

Does anyone have any idea why? or How I go about repairing?

Can I reference it later on such as swApp = ????

private void button5_Click(object sender, EventArgs e)
{
    //Save Drawing
    ModelDoc2 swDoc = null;
    int longstatus = 0;
    swDoc = ((ModelDoc2)(swApp.ActiveDoc));
    longstatus = swDoc.SaveAs3(
            @"C:\Engineering\Engineering\SW Automation\Linear Actuator Technology\MLD Series\Prints\Configured Prints\" + 
            textBox1.Text + ".SLDDRW", 0, 2);
}

public SldWorks swApp;

score 2 · Accepted Answer · edited Sep 15 '11 at 13:27

2

Figured it out thanks for the help everyone.

SldWorks swApp = null;
swApp = (SldWorks)Activator.CreateInstance(
            Type.GetTypeFromProgID("SldWorks.Application"));

edited Sep 15 '11 at 13:27

Devendra D. Chavan

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answered Sep 15 '11 at 13:01

Russell Saari

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score 1 · Answer 2 · answered Sep 14 '11 at 17:59

1

Somewhere you're going to have to populate swApp. I don't use SolidWorks so I can't give you the exact code but look in the constructor of their example code. Maybe you can find an example of how swApp is populated there.

answered Sep 14 '11 at 17:59

Matt Cofer

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yeah I used their macro recorder to record most of what is going on and the give you public SldWorks swApp; which does not help me in winforms. I think I will have to figure a way to define it each time I use it. – Russell Saari Sep 14 '11 at 18:10
1

That is what I generally do with NX. You access the Session first then get the work part. Terminology may be different in SolidWorks. When I use the journal recorder it shows how those variables are initialized though. – Matt Cofer Sep 14 '11 at 18:17

Solidworks API and Winforms C# swApp (Standalone)

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