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Improving ComboBoxColumn behavior to prevent triple click behavior #4220

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bolyb
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@bolyb bolyb commented Sep 2, 2021

Fixes #3161

This implementation fixes the need to click a ComboBox in a DataGridComboBoxColumn 3 times before the DropDown opens.

PR Type

What kind of change does this PR introduce?

  • Bugfix

What is the current behavior?

The current behavior is that in order to expand a ComboBox DropDown, the cell must first be clicked once to be highlighted, then the ComboBox must be clicked twice more before the DropDown expands.

For more information, see: #3161

What is the new behavior?

The new behavior is that after the ComboBox is clicked once to be highlighted, the next click expands the DropDown.

PR Checklist

Please check if your PR fulfills the following requirements:

  • Tested code with current supported SDKs
  • New component
    • Pull Request has been submitted to the documentation repository instructions. Link:
    • Added description of major feature to project description for NuGet package (4000 total character limit, so don't push entire description over that)
    • If control, added to Visual Studio Design project
  • Sample in sample app has been added / updated (for bug fixes / features)
  • New major technical changes in the toolkit have or will be added to the Wiki e.g. build changes, source generators, testing infrastructure, sample creation changes, etc...
  • Tests for the changes have been added (for bug fixes / features) (if applicable)
  • Header has been added to all new source files (run build/UpdateHeaders.bat)
  • Contains NO breaking changes

Other information

Supersedes #4209

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ghost commented Sep 2, 2021

Thanks bolyb for opening a Pull Request! The reviewers will test the PR and highlight if there is any conflict or changes required. If the PR is approved we will proceed to merge the pull request 🙌

@ghost ghost added bug 🐛 An unexpected issue that highlights incorrect behavior DataGrid 🔠 Issues on DataGrid control labels Sep 2, 2021
@michael-hawker michael-hawker added this to the 7.1 milestone Sep 2, 2021
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@Rosuavio Rosuavio left a comment

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Works well, other than my nitpick. Thanks @bolyb

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ghost commented Sep 2, 2021

Hello @michael-hawker!

Because this pull request has the auto merge :zap: label, I will be glad to assist with helping to merge this pull request once all check-in policies pass.

p.s. you can customize the way I help with merging this pull request, such as holding this pull request until a specific person approves. Simply @mention me (@msftbot) and give me an instruction to get started! Learn more here.

@michael-hawker michael-hawker merged commit 0ee2c84 into CommunityToolkit:main Sep 2, 2021
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auto merge ⚡ bug 🐛 An unexpected issue that highlights incorrect behavior DataGrid 🔠 Issues on DataGrid control
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DataGrid ComboBoxColumn must be clicked 3 times for each ComboBox to expand
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