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cleanup BindingSourceHelper #4544

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cleanup BindingSourceHelper #4544

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80 changes: 37 additions & 43 deletions Source/Csla.Windows/BindingSourceHelper.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -9,60 +9,54 @@
using System.ComponentModel;
using Csla.Properties;

namespace Csla.Windows
namespace Csla.Windows;

/// <summary>
/// Helper methods for dealing with BindingSource
/// objects and data binding.
/// </summary>
public static class BindingSourceHelper
{
private static BindingSourceNode _rootSourceNode;

/// <summary>
/// Helper methods for dealing with BindingSource
/// objects and data binding.
/// Sets up BindingSourceNode objects for all
/// BindingSource objects related to the provided
/// root source.
/// </summary>
public static class BindingSourceHelper
/// <param name="container">
/// Container for the components.
/// </param>
/// <param name="rootSource">
/// Root BindingSource object.
/// </param>
public static BindingSourceNode InitializeBindingSourceTree(
IContainer container, BindingSource rootSource)
{
private static BindingSourceNode _rootSourceNode;
if (rootSource == null)
throw new ApplicationException(Resources.BindingSourceNotProvided);

/// <summary>
/// Sets up BindingSourceNode objects for all
/// BindingSource objects related to the provided
/// root source.
/// </summary>
/// <param name="container">
/// Container for the components.
/// </param>
/// <param name="rootSource">
/// Root BindingSource object.
/// </param>
public static BindingSourceNode InitializeBindingSourceTree(
IContainer container, BindingSource rootSource)
{
if (rootSource == null)
throw new ApplicationException(Resources.BindingSourceNotProvided);
_rootSourceNode = new BindingSourceNode(rootSource);
_rootSourceNode.Children.AddRange(GetChildBindingSources(container, rootSource, _rootSourceNode));

_rootSourceNode = new BindingSourceNode(rootSource);
_rootSourceNode.Children.AddRange(GetChildBindingSources(container, rootSource, _rootSourceNode));

return _rootSourceNode;
}
return _rootSourceNode;
}

private static List<BindingSourceNode> GetChildBindingSources(
IContainer container, BindingSource parent, BindingSourceNode parentNode)
private static IEnumerable<BindingSourceNode> GetChildBindingSources(
IContainer container, BindingSource parent, BindingSourceNode parentNode)
{
foreach (Component component in container.Components)
{
List<BindingSourceNode> children = new List<BindingSourceNode>();

foreach (Component component in container.Components)
if (component is BindingSource {DataSource: not null} source &&
source.DataSource.Equals(parent))
{
if (component is BindingSource temp)
var childNode = new BindingSourceNode(source)
{
if (temp.DataSource != null && temp.DataSource.Equals(parent))
{
BindingSourceNode childNode = new BindingSourceNode(temp);
children.Add(childNode);
childNode.Children.AddRange(GetChildBindingSources(container, temp, childNode));
childNode.Parent = parentNode;
}
}
Parent = parentNode
};
childNode.Children.AddRange(GetChildBindingSources(container, source, childNode));
yield return childNode;
}

return children;
}

}
}
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