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520 fallback UI#521

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chlaplan wants to merge 7 commits into
MicrosoftDocs:mainfrom
chlaplan:520-Fallback-UI
Open

520 fallback UI#521
chlaplan wants to merge 7 commits into
MicrosoftDocs:mainfrom
chlaplan:520-Fallback-UI

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@chlaplan chlaplan commented May 6, 2026

#520 and #519

chlaplan and others added 7 commits May 4, 2026 17:44
• FolderHashScanForm.cs — New dialog for folder-based hash file scanning with browse, subfolder toggle, file checklist, and hash type selection
Modified Files
CustomRuleConditionsPanel.cs
• Added hash mode panel with Single File, Multiple Files radio buttons and Folder Scan... button
• "Folder Scan..." button directly opens FolderHashScanForm dialog
• Multi-file and folder scan modes batch files into a single FolderScan-type rule using New-CIPolicy -ScanPath (instead of one PowerShell call per file)
• Selected files are copied to a temp folder preserving subfolder structure from the source
• Stores SourceFolderPath and HashTypesToKeep on the rule for downstream processing
FolderHashScanForm.cs
• Browse folder with optional Include subfolders checkbox
• Scan Folder button enumerates files by common PE/script extensions
• Select All / Deselect All for the file checklist
• Hash type checkboxes: Hash SHA1, Hash SHA256, Hash Page SHA1, Hash Page SHA256, and All (toggle)
• Exposes SelectedFiles, SelectedHashTypes, SourceFolderPath, IncludeSubfolders, AllFilesSelected
• Dark mode support
SigningRules_Control.cs
• Added AddRuleToTableWithoutClosing() method to support batch rule insertion without closing the custom rules panel
Policy.cs (PolicyCustomRules class)
• Added HashTypesToKeep property (HashSet<string>) — hash types to retain when filtering generated policy XML
• Added SourceFolderPath property (string) — original folder path for FriendlyName correction
MainForm.cs
• Added using System.Linq
• FriendlyName fix: after scan, replaces temp folder path in each rule's FriendlyName with the original source folder path (preserving subfolders)
• Hash type filtering: removes unwanted hash types (Hash SHA1, Hash Page SHA256, etc.) from generated policy based on user's checkbox selections
• Progress bar improvements:
• ProcessCustomValueRules(BackgroundWorker, SiPolicy) now reports incremental progress 0–25% per rule
• ProcessSignerRules(BackgroundWorker, SiPolicy) shows "Processing rule X of Y ..." with accurate counts
• FolderScan shows phased status: "Scanning folder: ...", "Scan complete. Applying hash type filters ...", "Filtered: kept X of Y hash rules.", "Merging scanned policy rules ..."
• ProgressChanged handler respects custom UserState messages
This reverts commit 162dd88.
• Added -NoLogo -NonInteractive flags to PowerShell invocation to reduce startup overhead
• Fixed potential deadlock: moved StandardOutput.ReadToEnd() and StandardError.ReadToEnd() before WaitForExit() to prevent buffer-full hang

MainForm.cs
• Fixed progress bar stalling at 25% during Folder Scan by reporting progress after skipping non-applicable rules
• Added mid-scan progress report (~55%) before CreateScannedPolicyFromPS(PolicyCustomRules, string, string) so UI shows activity during long scans
• Updated progress status text: "Scanning and processing rules (this may take a few minutes) ..." for the 25-80% range
…UI-Process

518 update file scan UI process
 -OmitPaths and -Fallback passed as single string instead of array.

Fix: The script now splits the comma-separated values into proper arrays ($FallbackArray, $OmitArray) and uses splatting (@omitSplat) to conditionally pass -OmitPaths only when paths are specified. Applied to both app/Scripts/ and app/MSIX/ copies
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Last change:

Excluded folders being checked are still getting added to the XML, seems to be two bugs in the code

  1. If only one folder is checked, it won't exclude the folder, has to be > 1, line 306 should be > 0, not > 1.
  2. -OmitPaths and -Fallback passed as single string instead of array

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