public override void Process(
Microsoft.AspNetCore.Razor.TagHelpers.TagHelperContext context,
Microsoft.AspNetCore.Razor.TagHelpers.TagHelperOutput output)
{
System.Reflection.PropertyInfo modelAttributesProperty =
For.Metadata.GetType().GetProperty("Attributes");
Microsoft.AspNetCore.Mvc.ModelBinding.ModelAttributes modelAttributes =
modelAttributesProperty.GetValue(For.Metadata)
as Microsoft.AspNetCore.Mvc.ModelBinding.ModelAttributes
;
object a = System.Linq.Enumerable.FirstOrDefault(modelAttributes.PropertyAttributes
, m => m.GetType() == typeof(System.ComponentModel.ReadOnlyAttribute)
);
if (a is System.ComponentModel.ReadOnlyAttribute readOnlyAttribute &&
readOnlyAttribute.IsReadOnly == true)
{
Microsoft.AspNetCore.Razor.TagHelpers.TagHelperAttribute attribute =
new Microsoft.AspNetCore.Razor.TagHelpers.TagHelperAttribute("disabled", "disabled");
output.Attributes.Add(attribute);
}
base.Process(context, output);
} // End Sub Process
public override async global::System.Threading.Tasks.Task ProcessAsync(Microsoft.AspNetCore.Razor.TagHelpers.TagHelperContext context, Microsoft.AspNetCore.Razor.TagHelpers.TagHelperOutput output)
{
(_helper as global::Microsoft.AspNetCore.Mvc.ViewFeatures.IViewContextAware)?.Contextualize(ViewContext);
var content = await _helper.InvokeAsync("Summary", new { });
output.TagName = null;
output.Content.SetHtmlContent(content);
}
/*
* // https://stackoverflow.com/questions/40850154/how-to-get-elements-defined-as-taghelper-content-in-taghelper-process
* public override void Process(TagHelperContext context, TagHelperOutput output)
* {
* string c = output.Content.GetContent();
* // c is empty; how to get content "bla bla"?
* }
*/
public override async Task ProcessAsync(
Microsoft.AspNetCore.Razor.TagHelpers.TagHelperContext context,
Microsoft.AspNetCore.Razor.TagHelpers.TagHelperOutput output)
{
string c = (await output.GetChildContentAsync()).GetContent();
// transform markdown in c
}
public override async global::System.Threading.Tasks.Task ProcessAsync(Microsoft.AspNetCore.Razor.TagHelpers.TagHelperContext __context, Microsoft.AspNetCore.Razor.TagHelpers.TagHelperOutput __output)
{
(__helper as global::Microsoft.AspNetCore.Mvc.ViewFeatures.IViewContextAware)?.Contextualize(ViewContext);
var __helperContent = await __helper.InvokeAsync("Test", ProcessInvokeAsyncArgs(__context));
__output.TagName = null;
__output.Content.SetHtmlContent(__helperContent);
}
public override async global::System.Threading.Tasks.Task ProcessAsync(Microsoft.AspNetCore.Razor.TagHelpers.TagHelperContext context, Microsoft.AspNetCore.Razor.TagHelpers.TagHelperOutput output)
{
(_helper as global::Microsoft.AspNetCore.Mvc.ViewFeatures.IViewContextAware)?.Contextualize(ViewContext);
var content = await _helper.InvokeAsync("OnlineUsers", new { numbersToTake, minutesToTake, showMoreItemsLink });
output.TagName = null;
output.Content.SetHtmlContent(content);
}
} // EndConstructor
// https://tahirnaushad.com/2017/08/27/asp-net-core-2-0-mvc-custom-tag-helpers/
public override void Process(
Microsoft.AspNetCore.Razor.TagHelpers.TagHelperContext context,
Microsoft.AspNetCore.Razor.TagHelpers.TagHelperOutput output)
{
output.TagName = null;
// output.TagName = "pre";
output.TagMode = Microsoft.AspNetCore.Razor.TagHelpers.TagMode.StartTagAndEndTag;
System.Text.StringBuilder sb = new System.Text.StringBuilder();
string id = this.Id;
string name = this.Name ?? id;
string checkedValue = (AspFor == null) ? null : (string)
System.Convert.ChangeType(AspFor.Model, typeof(string), System.Globalization.CultureInfo.InvariantCulture);
int i = 0;
foreach (Microsoft.AspNetCore.Mvc.Rendering.SelectListItem item in Items)
{
i++;
sb.AppendLine("<label>");
sb.Append("<input type=\"checkbox\"");
//sb.Append(" id=\"issue_custom_field_values_");
sb.Append(" id=\"");
sb.Append(System.Web.HttpUtility.HtmlAttributeEncode(id));
sb.Append("_");
sb.Append(i);
sb.Append("\"");
//sb.Append(" name=\"issue[custom_field_values][3]\"");
sb.Append(" name=\"");
sb.Append(System.Web.HttpUtility.HtmlAttributeEncode(name));
sb.Append("_");
sb.Append(i);
sb.Append("\"");
sb.Append(" value=\"");
sb.Append(System.Web.HttpUtility.HtmlAttributeEncode(item.Value));
sb.Append("\"");
if (string.Equals(checkedValue, item.Value, System.StringComparison.InvariantCultureIgnoreCase))
{
sb.Append(" checked=\"checked\" ");
}
sb.Append(">");
sb.AppendLine(System.Web.HttpUtility.HtmlEncode(item.Text));
sb.AppendLine("</label>");
} // Next item
output.PostContent.SetHtmlContent(sb.ToString());
} // End Sub Process
// https://stackoverflow.com/questions/40001242/aspnetcore-get-path-to-wwwroot-in-taghelper
public override void Process(Microsoft.AspNetCore.Razor.TagHelpers.TagHelperContext context
, Microsoft.AspNetCore.Razor.TagHelpers.TagHelperOutput output)
{
EnsureFileVersionProvider();
Microsoft.AspNetCore.Mvc.IUrlHelper urlHelper =
base.UrlHelperFactory.GetUrlHelper(this.ActionContext);
// string myUrl = urlHelper.Content("~/somefilebelowwwwroot");
// string imgPath = output.Attributes["src"].Value as string;
// Microsoft.AspNetCore.Html.HtmlString hs = output.Attributes["src"].Value as Microsoft.AspNetCore.Html.HtmlString;
// string imgPath = hs.Value;
// Microsoft.AspNetCore.Html.HtmlString hs = context.AllAttributes["src"].Value as Microsoft.AspNetCore.Html.HtmlString;
// string imgPath = hs.Value;
// var rcc = new Microsoft.AspNetCore.Mvc.Routing.UrlRouteContext();
// var rc = new Microsoft.AspNetCore.Routing.RouteContext(this.HttpContext);
// lol = urlHelper.RouteUrl(rcc);
string baseSrc = context.AllAttributes["src"].Value.ToString();
if (baseSrc.StartsWith("data:"))
{
return;
}
PathMap pm = PathMap.FromUrl(this.HostingEnvironment, urlHelper, baseSrc);
System.IO.FileInfo fi = new System.IO.FileInfo(pm.Physical);
string unixTicks = fi.Exists ? fi.LastWriteTimeUtc.ToUnixTicksString()
: System.DateTime.UtcNow.ToUnixTicksString();
if (string.IsNullOrEmpty(pm.QueryString))
{
baseSrc = $"{pm.Absolute}?no_cache={unixTicks}{pm.Hash}";
}
else
{
baseSrc = $"{pm.Absolute}{pm.QueryString}&no_cache={unixTicks}{pm.Hash}";
}
// No not have it XML-Attribute-encoded
//output.Attributes.SetAttribute("src", new Microsoft.AspNetCore.Html.HtmlString(imgPath));
output.Attributes.SetAttribute("src", baseSrc);
//output.Attributes.SetAttribute("src", src + "?&v=123");
// output.Attributes.SetAttribute(SrcAttributeName, _fileVersionProvider.AddFileVersionToPath(Src));
}
private Dictionary <string, object> ProcessInvokeAsyncArgs(Microsoft.AspNetCore.Razor.TagHelpers.TagHelperContext __context)
{
Dictionary <string, object> args = new Dictionary <string, object>();
if (__context.AllAttributes.ContainsName("first-name"))
{
args[nameof(firstName)] = firstName;
}
return(args);
}
public override void Process(
Microsoft.AspNetCore.Razor.TagHelpers.TagHelperContext context
, Microsoft.AspNetCore.Razor.TagHelpers.TagHelperOutput output)
{
output.TagMode = Microsoft.AspNetCore.Razor.TagHelpers.TagMode.SelfClosing;
output.TagName = null;
// output.TagName = "pre";
output.Content.SetContent(
System.IO.File.ReadAllText(
System.IO.Path.Combine(_env.WebRootPath, this.Filename)
)
);
}
public override void Process(Microsoft.AspNetCore.Razor.TagHelpers.TagHelperContext context, Microsoft.AspNetCore.Razor.TagHelpers.TagHelperOutput output)
{
Microsoft.AspNetCore.Mvc.IUrlHelper urlHelper = urlHelperFactory.GetUrlHelper(ViewContext);
Microsoft.AspNetCore.Mvc.Rendering.TagBuilder result = new Microsoft.AspNetCore.Mvc.Rendering.TagBuilder("div");
for (int i = 1; i <= PageModel.TotalPages; i++)
{
Microsoft.AspNetCore.Mvc.Rendering.TagBuilder tag = new Microsoft.AspNetCore.Mvc.Rendering.TagBuilder("a");
PageUrlValues["productPage"] = i;
tag.Attributes["href"] = urlHelper.Action(PageAction, PageUrlValues);
if (PageClassesEnabled)
{
tag.AddCssClass(PageClass);
tag.AddCssClass(i == PageModel.CurrentPage ? PageClassSelected : PageClassNormal);
}
tag.InnerHtml.Append(i.ToString());
result.InnerHtml.AppendHtml(tag);
}
output.Content.AppendHtml(result.InnerHtml);
}
public override void Process(Microsoft.AspNetCore.Razor.TagHelpers.TagHelperContext context, Microsoft.AspNetCore.Razor.TagHelpers.TagHelperOutput output)
{
output.TagName = "a"; //a di anchor
//Imposto i valori del link, indico all' anchor tag helper dove deve andare a navigare
RouteValues["search"] = Input.Search;
RouteValues["orderBy"] = OrderBy;
RouteValues["ascending"] = (Input.OrderBy == OrderBy ? !Input.Ascending : Input.Ascending).ToString().ToLowerInvariant();
//Faccio generare l'output html all'AnchorTagHelper
base.Process(context, output);
//Aggiungo l'indicatore di direzione
if (Input.OrderBy == OrderBy)
{
var direction = Input.Ascending ? "up" : "down";
output.PostContent.SetHtmlContent($" <i class=\"fas fa-caret-{direction}\"></i>");
//e tramite PostContent aggiungo l'icona rappresentante il senso di ordinamento
}
}
public override void Process(Microsoft.AspNetCore.Razor.TagHelpers.TagHelperContext context, Microsoft.AspNetCore.Razor.TagHelpers.TagHelperOutput output)
{
}
public override System.Threading.Tasks.Task ProcessAsync(Microsoft.AspNetCore.Razor.TagHelpers.TagHelperContext context, Microsoft.AspNetCore.Razor.TagHelpers.TagHelperOutput output)
{
throw null;
}
public override void Init(Microsoft.AspNetCore.Razor.TagHelpers.TagHelperContext context)
{
}
public virtual void Init(Microsoft.AspNetCore.Razor.TagHelpers.TagHelperContext context)
{
}
public static bool TryDetermineMode <TMode>(Microsoft.AspNetCore.Razor.TagHelpers.TagHelperContext context, System.Collections.Generic.IReadOnlyList <Microsoft.AspNetCore.Mvc.TagHelpers.ModeAttributes <TMode> > modeInfos, System.Func <TMode, TMode, int> compare, out TMode result)
{
throw null;
}
// https://tahirnaushad.com/2017/08/27/asp-net-core-2-0-mvc-custom-tag-helpers/
public override void Process(
Microsoft.AspNetCore.Razor.TagHelpers.TagHelperContext context,
Microsoft.AspNetCore.Razor.TagHelpers.TagHelperOutput output)
{
// context.AllAttributes["maxlength"];
// System.Console.WriteLine(this.ActionContextAccessor.ActionContext.ModelState);
// System.Console.WriteLine(this.ViewContext.ModelState);
// System.Console.WriteLine(AspFor, AspItems);
//foreach (string k in this.ViewContext.ModelState.Keys)
//{
// System.Console.WriteLine(k);
//}
// output.TagName = "details";
// output.TagMode = TagMode.StartTagAndEndTag;
//System.Text.StringBuilder sb = new System.Text.StringBuilder();
//sb.AppendFormat("<summary>{0}</summary>", this.AspItems);
//sb.AppendFormat("<em>{0}</em>", this.AspFor);
//sb.AppendFormat("<p>{0}</p>", this.AspItems);
//sb.AppendFormat("<ul>");
//output.PreContent.SetHtmlContent(sb.ToString());
//output.PostContent.SetHtmlContent("</ul>");
output.TagName = null;
// output.TagName = "pre";
output.TagMode = Microsoft.AspNetCore.Razor.TagHelpers.TagMode.StartTagAndEndTag;
// output.PostContent.SetContent("<h1>this gets HTML encoded<h1>");
// output.PostContent.SetHtmlContent("<h1>Hello World</h1>");
System.Text.StringBuilder sb = new System.Text.StringBuilder();
//System.Collections.Generic.List<
// Microsoft.AspNetCore.Mvc.Rendering.SelectListItem
// > items = (
// System.Collections.Generic.List<
// Microsoft.AspNetCore.Mvc.Rendering.SelectListItem
// >)AspItems.Model;
string id = this.Id;
string name = this.Name ?? id;
string checkedValue = (AspFor == null) ? null : (string)
System.Convert.ChangeType(AspFor.Model, typeof(string), System.Globalization.CultureInfo.InvariantCulture);
int i = 0;
//foreach (Microsoft.AspNetCore.Mvc.Rendering.SelectListItem item in items)
foreach (Microsoft.AspNetCore.Mvc.Rendering.SelectListItem item in Items)
{
i++;
sb.AppendLine("<label>");
sb.Append("<input type=\"radio\"");
//sb.Append(" id=\"issue_custom_field_values_");
sb.Append(" id=\"");
sb.Append(System.Web.HttpUtility.HtmlAttributeEncode(id));
sb.Append("_");
sb.Append(i);
sb.Append("\"");
//sb.Append(" name =\"issue[custom_field_values][3]\"");
sb.Append(" name=\"");
sb.Append(System.Web.HttpUtility.HtmlAttributeEncode(name));
sb.Append("\"");
sb.Append(" value=\"");
sb.Append(System.Web.HttpUtility.HtmlAttributeEncode(item.Value));
sb.Append("\"");
if (string.Equals(checkedValue, item.Value, System.StringComparison.InvariantCultureIgnoreCase))
{
sb.Append(" checked=\"checked\" ");
}
sb.Append(">");
sb.AppendLine(System.Web.HttpUtility.HtmlEncode(item.Text));
sb.AppendLine("</label>");
} // Next item
output.PostContent.SetHtmlContent(sb.ToString());
//output.PostContent.SetContent("");
//output.PreElement.SetHtmlContent("<h3>Hello</h3>");
} // End Sub Process
