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I have developed a custom model using ModelBuilder in ArcGIS, and I would like to use a .NET Base Command to open the geoprocessor parameter window for this tool so the user can enter their parameters, same behavior as if I were double-clicking it in ArcToolbox, as opposed to just executing it programmatically without user interaction. Is this possible?

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@Petr This isn't a duplicate. The answer to the question you posted at the link opens up the model in the ModelBuilder editor window. I want to open the tool's geoprocessing tool dialog, the canned one that lets you enter parameters, view help on the right, and set environment at the bottom: Tool Dialog Basics – Gady May 11 '11 at 16:25
you're right, sorry, I totally overlooked that. – Petr Krebs May 11 '11 at 19:38
up vote 3 down vote accepted

Very similarly to this answer, you can open a tool's dialog with the code below. The code sample opens up the dialog for the "Symmetrical Difference" tool, but you can use your model's name instead of "SymDiff".

        // _app is an IApplication reference (e.g. ArcMap or ArcCatalog app)
        var arcToolBoxExtension = _app.FindExtensionByName("ESRI ArcToolbox") as IArcToolboxExtension;

        if (arcToolBoxExtension != null)
            var arcToolBox = arcToolBoxExtension.ArcToolbox;
            var gpTool = arcToolBox.GetToolbyNameString("SymDiff");
            if (gpTool != null) arcToolBox.InvokeTool(_app.hWnd, gpTool, null, false);
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Petr has shown the answer, which is the GetToolbyName property on IArcToolbox. You can also refer to the SDK manual which will help you navigate the SDK:


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