topic How to get file paths for features and rasters using sdk open dialog button. in ArcGIS Pro SDK Questions

How to get file paths for features and rasters using sdk open dialog button.

MatthewPebworth — Wed, 12 Aug 2020 14:38:42 GMT

I am writing an add in that requires the input of several shapefiles and rasters. Unfortunately, the 'normal' open file dialog does not appropriately 'see' these file types. I need to be able to get file paths of these files without knowing the path before hand. Looking at the api reference this set of classes appear to be what i need. However, i am extremely new to programing in c# and am unsure how to achieve this. I have gotten as far as when button is clicked do a process##.

Re: How to get file paths for features and rasters using sdk open dialog button.

UmaHarano — Wed, 12 Aug 2020 21:48:23 GMT

Hi Matthew,

You can use the BrowseProjectFilters and OpenItemDialog class to achieve what you need.

Pro offers a collection of existing BrowseProjectFilters that you can use. For example, "esri_browseDialogFilters_shapefiles" will allow you to browse just for shape files. Note: You can also make your own filters for other file types.

Here is a rough workflow:

Create a BrowseProjectFilter instance. You can instantiate it with one of the existing Pro filters (Shape file filter listed above is an example).
Create an OpenItemDialog object and set its "BrowseFilter" property to the BrowseProjectFilter instance created (above).
Call the Show method on the OpenItemDialog to display the dialog, filtering for the file types.

Here are some wiki pages that can help you:

All Pro existing BrowseProjectFilters are listed here: ProSnippets: Browse Dialog Filters
A Guide that gives you examples of a complete workflow in creating OpenItemDialog with Browse filters: ProGuide: Custom Browse Dialog Filters
Concept docs that explains how filters work in Pro: Browse Dialog Filters

Thanks

Uma

Re: How to get file paths for features and rasters using sdk open dialog button.

MatthewPebworth — Thu, 20 Aug 2020 15:00:06 GMT

Thanks. The magic bullet for me was the need for the framework dispatcher property. This is what i was needing for future people in the same spot.

var dlg = new OpenItemDialog();
dlg.Title = "Select DEM Raster";

                FrameworkApplication.Current.Dispatcher.Invoke(() => {
                    var result = dlg.ShowDialog();
                    if (!dlg.ShowDialog().Value)
                        return;
                    var SelFile = dlg.Items.First();
                    ///Verify expected outcome
                    /// MessageBox.Show($@"Path: {SelFile.Path}");
                    FPath = SelFile.Path;
                    FileName = System.IO.Path.GetFileName(SelFile.Path);
                    txtDEM.Text = FileName;

});