topic VBscript C# in .NET Forum

VBscript C#

k005 — Sat, 13 Mar 2021 06:56:15 GMT

public double CalculFormula(string Formula) { MSScriptControl.ScriptControl sc = new MSScriptControl.ScriptControl(); sc.Language = "VBScript"; try { return System.Convert.ToDouble(sc.Eval(Formula)); } catch (System.Exception) { return 0; } }

private void button5_Click(object sender, EventArgs e) { lblsonuc.Text = CalculFormula(txtCalc.Text).ToString(); }

Hello

This code works fine when compiled as WindowsForm. When I compile it as a plug-in (.dll), it does not find any errors.

but when triggered with the button I get this error.

Re: VBscript C#

norman.yuan — Sat, 13 Mar 2021 14:13:31 GMT

As you have already known, as I replied in the other discussion forum, that Microsoft ScriptControl 1.0 is a 32-bit COM component. It being working in your .NET WinForm EXE is because your EXE is built against "any CPU" so that the .NET runtime automatically runs it as 32-bit app due to the fact the app uses a 32-bit component. If you rebuild your WinForm by targeting x64 CPU, you would have known it does not work.

Since you post this in AutoCAD .NET discussion forum, I assume you are trying to run the code in AutoCAD plugin, where your AutoCAD is 64-bit. If so, you CANNOT use this 32-bit ScriptControl.

You may want to search for different scripting component that is pure .NET component (thus run on both x86 or x64 platforms).

Re: VBscript C#

k005 — Sat, 13 Mar 2021 14:29:49 GMT

@norman.yuan

Thank you. 😔