Add ValidationErrorsCount control

[Copilot]

New control similar to ValidationSummary that displays only the count of validation errors in the current Validation.Target.

Changes

• ValidationErrorsCount.cs - New control with:

  • IncludeErrorsFromChildren (default: true) - count errors from nested objects
  • IncludeErrorsFromTarget (default: true) - count errors from target itself
  • InvalidCssClass - CSS class applied when errors exist
  • WrapperTagName (default: span) - customizable wrapper tag

• validation.ts - Added dotvvm-validationErrorsCount Knockout binding handler

Usage

<!-- Basic -->
<dot:ValidationErrorsCount />

<!-- With target and invalid class -->
<dot:ValidationErrorsCount Validation.Target={value: Person} InvalidCssClass="has-errors" />

<!-- Custom wrapper -->
<dot:ValidationErrorsCount WrapperTagName="div" />

<!-- Only target errors, no children -->
<dot:ValidationErrorsCount IncludeErrorsFromChildren="false" />

Note: IncludeErrorsFromChildren defaults to true (unlike ValidationSummary which defaults to false) per the issue requirements.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• 0t3vsblobprodcus362.vsblob.vsassets.io
  • Triggering command: /usr/bin/dotnet dotnet restore --no-dependencies /home/REDACTED/work/dotvvm/dotvvm/src/DotVVM.sln --packages /home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/packages /p:DisableImplicitNuGetFallbackFolder=true --verbosity normal /p:TargetFrameworkRootPath=/home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/emptyFakeDotnetRoot /p:NetCoreTargetingPackRoot=/home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/emptyFakeDotnetRoot grep -l y rHtmlSpecialElem--delta-base-offset rgo/bin/grep (dns block)
• 1p7vsblobprodcus324.vsblob.vsassets.io
  • Triggering command: /usr/bin/dotnet dotnet restore --no-dependencies /home/REDACTED/work/dotvvm/dotvvm/src/DotVVM.sln --packages /home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/packages /p:DisableImplicitNuGetFallbackFolder=true --verbosity normal /p:TargetFrameworkRootPath=/home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/emptyFakeDotnetRoot /p:NetCoreTargetingPackRoot=/home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/emptyFakeDotnetRoot grep -l y rHtmlSpecialElem--delta-base-offset rgo/bin/grep (dns block)
• 1s1vsblobprodcus386.vsblob.vsassets.io
  • Triggering command: /usr/bin/dotnet dotnet restore --no-dependencies /home/REDACTED/work/dotvvm/dotvvm/src/DotVVM.sln --packages /home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/packages /p:DisableImplicitNuGetFallbackFolder=true --verbosity normal /p:TargetFrameworkRootPath=/home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/emptyFakeDotnetRoot /p:NetCoreTargetingPackRoot=/home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/emptyFakeDotnetRoot grep -l y rHtmlSpecialElem--delta-base-offset rgo/bin/grep (dns block)
  • Triggering command: /usr/bin/dotnet dotnet restore --no-dependencies /home/REDACTED/work/dotvvm/dotvvm/src/Samples/Tests/CompletenessChecker/DotVVM.Samples.Tests.CompletenessChecker.csproj --packages /home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/packages /p:DisableImplicitNuGetFallbackFolder=true --verbosity normal /p:TargetFrameworkRootPath=/home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/emptyFakeDotnetRoot /p:NetCoreTargetingPackRoot=/home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/emptyFakeDotnetRoot grep -l /Resources/Scrip-exec sts.cs cal/bin/grep (dns block)
  • Triggering command: /usr/bin/dotnet dotnet restore --no-dependencies /home/REDACTED/work/dotvvm/dotvvm/src/Samples/Tests/Tests/DotVVM.Samples.Tests.csproj --packages /home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/packages /p:DisableImplicitNuGetFallbackFolder=true --verbosity normal /p:TargetFrameworkRootPath=/home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/emptyFakeDotnetRoot /p:NetCoreTargetingPackRoot=/home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/emptyFakeDotnetRoot grep orking/emptyFakeDotnetRoot working/emptyFakeDotnetRoot gCompilationTests.cs rgo/bin/grep (dns block)
• 4m6vsblobprodcus384.vsblob.vsassets.io
  • Triggering command: /usr/bin/dotnet dotnet restore --no-dependencies /home/REDACTED/work/dotvvm/dotvvm/src/DotVVM.sln --packages /home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/packages /p:DisableImplicitNuGetFallbackFolder=true --verbosity normal /p:TargetFrameworkRootPath=/home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/emptyFakeDotnetRoot /p:NetCoreTargetingPackRoot=/home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/emptyFakeDotnetRoot grep -l y rHtmlSpecialElem--delta-base-offset rgo/bin/grep (dns block)
• 7devsblobprodcus323.vsblob.vsassets.io
  • Triggering command: /usr/bin/dotnet dotnet restore --no-dependencies /home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/00DA3BA51762B14D47D4C9F6E8A232CB/missingpackages_workingdir --packages /home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/missingpackages /p:DisableImplicitNuGetFallbackFolder=true --verbosity normal --configfile /home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/nugetconfig/nuget.config --force -l testoutputs/ValidationErrorsCountTests.ValidationErrorsCount_WithValidationDisabled.html sts.cs rep (dns block)
• cflvsblobprodcus383.vsblob.vsassets.io
  • Triggering command: /usr/bin/dotnet dotnet restore --no-dependencies /home/REDACTED/work/dotvvm/dotvvm/src/DotVVM.sln --packages /home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/packages /p:DisableImplicitNuGetFallbackFolder=true --verbosity normal /p:TargetFrameworkRootPath=/home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/emptyFakeDotnetRoot /p:NetCoreTargetingPackRoot=/home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/emptyFakeDotnetRoot grep -l y rHtmlSpecialElem--delta-base-offset rgo/bin/grep (dns block)
  • Triggering command: /usr/bin/dotnet dotnet restore --no-dependencies /home/REDACTED/work/dotvvm/dotvvm/src/Samples/Tests/CompletenessChecker/DotVVM.Samples.Tests.CompletenessChecker.csproj --packages /home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/packages /p:DisableImplicitNuGetFallbackFolder=true --verbosity normal /p:TargetFrameworkRootPath=/home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/emptyFakeDotnetRoot /p:NetCoreTargetingPackRoot=/home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/emptyFakeDotnetRoot grep -l /Resources/Scrip-exec sts.cs cal/bin/grep (dns block)
• jd4vsblobprodcus366.vsblob.vsassets.io
  • Triggering command: /usr/bin/dotnet dotnet restore --no-dependencies /home/REDACTED/work/dotvvm/dotvvm/src/DotVVM.sln --packages /home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/packages /p:DisableImplicitNuGetFallbackFolder=true --verbosity normal /p:TargetFrameworkRootPath=/home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/emptyFakeDotnetRoot /p:NetCoreTargetingPackRoot=/home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/emptyFakeDotnetRoot grep -l y rHtmlSpecialElem--delta-base-offset rgo/bin/grep (dns block)
• k4kvsblobprodcus344.vsblob.vsassets.io
  • Triggering command: /usr/bin/dotnet dotnet restore --no-dependencies /home/REDACTED/work/dotvvm/dotvvm/src/DotVVM.sln --packages /home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/packages /p:DisableImplicitNuGetFallbackFolder=true --verbosity normal /p:TargetFrameworkRootPath=/home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/emptyFakeDotnetRoot /p:NetCoreTargetingPackRoot=/home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/emptyFakeDotnetRoot grep -l y rHtmlSpecialElem--delta-base-offset rgo/bin/grep (dns block)
• m6xvsblobprodcus342.vsblob.vsassets.io
  • Triggering command: /usr/bin/dotnet dotnet restore --no-dependencies /home/REDACTED/work/dotvvm/dotvvm/src/DotVVM.sln --packages /home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/packages /p:DisableImplicitNuGetFallbackFolder=true --verbosity normal /p:TargetFrameworkRootPath=/home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/emptyFakeDotnetRoot /p:NetCoreTargetingPackRoot=/home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/emptyFakeDotnetRoot grep -l y rHtmlSpecialElem--delta-base-offset rgo/bin/grep (dns block)
• pdfvsblobprodcus380.vsblob.vsassets.io
  • Triggering command: /usr/bin/dotnet dotnet restore --no-dependencies /home/REDACTED/work/dotvvm/dotvvm/src/DotVVM.sln --packages /home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/packages /p:DisableImplicitNuGetFallbackFolder=true --verbosity normal /p:TargetFrameworkRootPath=/home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/emptyFakeDotnetRoot /p:NetCoreTargetingPackRoot=/home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/emptyFakeDotnetRoot grep -l y rHtmlSpecialElem--delta-base-offset rgo/bin/grep (dns block)
• pe3vsblobprodcus354.vsblob.vsassets.io
  • Triggering command: /usr/bin/dotnet dotnet restore --no-dependencies /home/REDACTED/work/dotvvm/dotvvm/src/DotVVM.sln --packages /home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/packages /p:DisableImplicitNuGetFallbackFolder=true --verbosity normal /p:TargetFrameworkRootPath=/home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/emptyFakeDotnetRoot /p:NetCoreTargetingPackRoot=/home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/emptyFakeDotnetRoot grep -l y rHtmlSpecialElem--delta-base-offset rgo/bin/grep (dns block)
• yttvsblobprodcus357.vsblob.vsassets.io
  • Triggering command: /usr/bin/dotnet dotnet restore --no-dependencies /home/REDACTED/work/dotvvm/dotvvm/src/DotVVM.sln --packages /home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/packages /p:DisableImplicitNuGetFallbackFolder=true --verbosity normal /p:TargetFrameworkRootPath=/home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/emptyFakeDotnetRoot /p:NetCoreTargetingPackRoot=/home/REDACTED/work/dotvvm/.codeql-scratch/dbs/csharp/working/emptyFakeDotnetRoot grep -l y rHtmlSpecialElem--delta-base-offset rgo/bin/grep (dns block)

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Original prompt

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This section details on the original issue you should resolve

<issue_title>ValidationErrorsCount control</issue_title>
<issue_description>I need a control with a logic similar to ValidationSummary, but which would print only the count of validation errors in the current Validation.Target.
By default, it should include errors from the target and its children.
It should also have the InvalidCssClass property that would be applied on the element (specified in WrapperTagName - span by default) when there is at least one error.</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes ValidationErrorsCount control #1968

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