public void RejectsUnsupportedType()
{
var ex = Assert.Throws <NotSupportedException>(
() => QueryParameterValueSupplier.ForType(typeof(UnsupportedType)));
Assert.Equal("Querystring values cannot be parsed as type 'System.Object'.", ex.Message);
}
public void CannotMapSingleQueryParameterToMultipleProperties()
{
var ex = Assert.Throws <InvalidOperationException>(
() => QueryParameterValueSupplier.ForType(typeof(MapSingleQueryParameterToMultipleProperties)));
Assert.Contains("declares more than one mapping for the query parameter 'a'.", ex.Message, StringComparison.OrdinalIgnoreCase);
}
private void RenderPageWithParameters(RenderTreeBuilder builder)
{
builder.OpenComponent(0, RouteData.PageType);
foreach (var kvp in RouteData.RouteValues)
{
builder.AddAttribute(1, kvp.Key, kvp.Value);
}
var queryParameterSupplier = QueryParameterValueSupplier.ForType(RouteData.PageType);
if (queryParameterSupplier is not null)
{
// Since this component does accept some parameters from query, we must supply values for all of them,
// even if the querystring in the URI is empty. So don't skip the following logic.
var url = NavigationManager.Uri;
ReadOnlyMemory <char> query = default;
var queryStartPos = url.IndexOf('?');
if (queryStartPos >= 0)
{
var queryEndPos = url.IndexOf('#', queryStartPos);
query = url.AsMemory(queryStartPos..(queryEndPos < 0 ? url.Length : queryEndPos));
}
queryParameterSupplier.RenderParametersFromQueryString(builder, query);
}
builder.CloseComponent();
}
/// <summary>
/// BuildRenderTree 方法
/// </summary>
/// <param name="builder"></param>
protected override void BuildRenderTree(RenderTreeBuilder builder)
{
// 判断是否开启权限
if (Authorized && Type != null)
{
var index = 0;
builder.OpenComponent(index++, Type);
foreach (var kv in (Parameters ?? new ReadOnlyDictionary <string, object>(new Dictionary <string, object>())))
{
builder.AddAttribute(index++, kv.Key, kv.Value);
}
#if NET6_0_OR_GREATER
BuildQueryParameters();
#endif
builder.CloseComponent();
}
else
{
builder.AddContent(0, NotAuthorized);
}
#if NET6_0_OR_GREATER
void BuildQueryParameters()
{
var queryParameterSupplier = QueryParameterValueSupplier.ForType(Type);
if (queryParameterSupplier is not null)
{
// Since this component does accept some parameters from query, we must supply values for all of them,
// even if the querystring in the URI is empty. So don't skip the following logic.
var url = NavigationManager.Uri;
var queryStartPos = url.IndexOf('?');
var query = queryStartPos < 0 ? default : url.AsMemory(queryStartPos);
queryParameterSupplier.RenderParametersFromQueryString(builder, query);
}
}
#endif
}
public void ComponentWithNoQueryParametersHasNoSupplier()
{
Assert.Null(QueryParameterValueSupplier.ForType(typeof(NoQueryParameters)));
}
