public override Task ProcessAsync(TagHelperContext context, TagHelperOutput output)
{
output.TagName = string.Empty;
output.TagMode = TagMode.SelfClosing;
using (var sw = new StringWriter())
{
var wrapper = new StringWriter();
var labelBuilder = new TagBuilder("label");
var selectBuilder = new TagBuilder("select");
var validationBuilder = new TagBuilder("validation");
var format = context.AllAttributes["asp-format"] != null ? context.AllAttributes["asp-format"].Value.ToString() : "";
var labelCss = context.AllAttributes["has-label"] != null ? context.AllAttributes["label-css"].Value.ToString() : "";
var inputCss = context.AllAttributes["input-css"] != null ? context.AllAttributes["input-css"].Value.ToString() : "";
var validationCss = Expression.Metadata.IsRequired || (context.AllAttributes["is-required"] != null && bool.Parse(context.AllAttributes["is-required"].Value.ToString())) ? context.AllAttributes["required-css"].Value.ToString() : "";
if (Expression.Metadata.IsRequired)
{
inputCss += " requiredField";
}
// generate label if exist
if (context.AllAttributes["has-label"] != null && bool.Parse(context.AllAttributes["has-label"].Value.ToString()))
{
labelBuilder = _generator.GenerateLabel(ViewContext, Expression.ModelExplorer, Expression.Name, Expression.Metadata.GetDisplayName(), new { @class = LabelCss });
labelBuilder.WriteTo(sw, NullHtmlEncoder.Default);
}
// generate actual input
selectBuilder = _generator.GenerateSelect(ViewContext, Expression.ModelExplorer, "Please select", Expression.Name, SelectList, false, new { @class = inputCss, PlaceHolder = Expression.Metadata.GetDisplayName() });
foreach (var attribute in context.AllAttributes)
{
if (HtmlTagHelpers.IsAttributeAddible(attribute.Name))
{
if (attribute.Name == "v-model-name")
{
selectBuilder.Attributes.Remove("v-model");
selectBuilder.Attributes.Add("v-model", attribute.Value.ToString());
}
else if (attribute.Name == "v-get-text")
{
selectBuilder.Attributes.Remove("data-gettext");
selectBuilder.Attributes.Add("data-gettext", attribute.Value.ToString());
}
else
{
selectBuilder.Attributes.Add(attribute.Name, attribute.Value.ToString());
}
}
}
selectBuilder.WriteTo(sw, NullHtmlEncoder.Default);
// generate validation if exist
if (Expression.Metadata.IsRequired || (context.AllAttributes["is-required"] != null && bool.Parse(context.AllAttributes["is-required"].Value.ToString())))
{
validationBuilder = _generator.GenerateValidationMessage(ViewContext, Expression.ModelExplorer, Expression.Name, null, ViewContext.ValidationMessageElement, new { @class = validationCss });
validationBuilder.WriteTo(sw, NullHtmlEncoder.Default);
}
// generate wrapper parent element if exist
if (context.AllAttributes["has-parent"] != null && bool.Parse(context.AllAttributes["has-parent"].Value.ToString()))
{
wrapper.Write("<div class='" + context.AllAttributes["parent-css"].Value + "'>");
wrapper.Write(sw.ToString());
wrapper.Write("</div>");
}
output.Content.SetHtmlContent(wrapper.ToString());
//output.PreContent.SetHtmlContent("<div class=''>");
//output.PostContent.SetHtmlContent("</div>");
return(base.ProcessAsync(context, output));
}
}
public override Task ProcessAsync(TagHelperContext context, TagHelperOutput output)
{
output.TagName = string.Empty;
output.TagMode = TagMode.SelfClosing;
using (var sw = new StringWriter())
{
var wrapper = new StringWriter();
var labelBuilder = new TagBuilder("label");
var inputBuilder = new TagBuilder("input");
var validationBuilder = new TagBuilder("validation");
var format = context.AllAttributes["asp-format"] != null ? context.AllAttributes["asp-format"].Value.ToString() : "";
var labelCss = context.AllAttributes["has-label"] != null ? context.AllAttributes["label-css"].Value.ToString() : "";
var inputCss = context.AllAttributes["input-css"] != null ? context.AllAttributes["input-css"].Value.ToString() : "";
var vmodel = context.AllAttributes["VModelName"] != null ? context.AllAttributes["VModelName"].Value.ToString() : "";
var validationCss = Expression.Metadata.IsRequired || (context.AllAttributes["is-required"] != null && bool.Parse(context.AllAttributes["is-required"].Value.ToString())) ? context.AllAttributes["required-css"].Value.ToString() : "";
if (Expression.Metadata.IsRequired)
{
inputCss += " requiredField";
}
switch (Expression.Metadata.DataTypeName)
{
case "int":
inputCss += " inputOnly";
break;
case "double":
inputCss += " doubleOnly";
break;
case "decimal":
inputCss += " doubleOnly";
break;
default:
break;
}
// generate label if exist
if (context.AllAttributes["has-label"] != null && bool.Parse(context.AllAttributes["has-label"].Value.ToString()))
{
labelBuilder = _generator.GenerateLabel(ViewContext, Expression.ModelExplorer, Expression.Name, Expression.Metadata.GetDisplayName(), new { @class = LabelCss });
labelBuilder.WriteTo(sw, NullHtmlEncoder.Default);
}
// generate actual input
inputBuilder = _generator.GenerateTextBox(ViewContext, Expression.ModelExplorer, Expression.Name, Expression.Model, Expression.Metadata.DisplayFormatString, new { @class = inputCss, PlaceHolder = Expression.Metadata.GetDisplayName() });
foreach (var validationAttribute in Expression.Metadata.ValidatorMetadata)
{
if (validationAttribute.GetType().Name == "RegularExpressionAttribute")
{
var reAttr = (RegularExpressionAttribute)validationAttribute;
inputBuilder.Attributes.Add("pattern", reAttr.Pattern);
}
}
foreach (var attribute in context.AllAttributes)
{
if (HtmlTagHelpers.IsAttributeAddible(attribute.Name))
{
if (attribute.Name == "place-holder")
{
inputBuilder.Attributes.Remove("placeholder");
inputBuilder.Attributes.Add("placeholder", attribute.Value.ToString());
}
else if (attribute.Name == "v-model-name")
{
inputBuilder.Attributes.Remove("v-model");
inputBuilder.Attributes.Add("v-model", attribute.Value.ToString());
}
else
{
inputBuilder.Attributes.Add(attribute.Name, attribute.Value.ToString());
}
}
}
inputBuilder.WriteTo(sw, NullHtmlEncoder.Default);
// generate validation if exist
if (Expression.Metadata.IsRequired || (context.AllAttributes["is-required"] != null && bool.Parse(context.AllAttributes["is-required"].Value.ToString())))
{
validationBuilder = _generator.GenerateValidationMessage(ViewContext, Expression.ModelExplorer, Expression.Name, null, ViewContext.ValidationMessageElement, new { @class = validationCss });
validationBuilder.WriteTo(sw, NullHtmlEncoder.Default);
}
// generate wrapper parent element if exist
if (context.AllAttributes["has-parent"] != null && bool.Parse(context.AllAttributes["has-parent"].Value.ToString()))
{
wrapper.Write("<div class='" + context.AllAttributes["parent-css"].Value + "'>");
wrapper.Write(sw.ToString());
wrapper.Write("</div>");
}
output.Content.SetHtmlContent(wrapper.ToString());
//output.PreContent.SetHtmlContent("<div class=''>");
//output.PostContent.SetHtmlContent("</div>");
return(base.ProcessAsync(context, output));
}
}
