/// <summary>
/// Rendert eine Textbox im Bootstrap-Stil für das übergebene Property.
/// </summary>
/// <returns></returns>
public MvcHtmlString TextArea <TProperty>(Expression <Func <TModel, TProperty> > expression, bool resizeable = false,
string placeholder = null, string label = null)
{
ModelMetadata modelMetadata = ModelMetadata.FromLambdaExpression(expression, Helper.ViewData);
TextAreaModel textAreaModel = new TextAreaModel(Helper,
modelMetadata,
ExpressionHelper.GetExpressionText(expression),
resizeable,
label,
placeholder);
return(Helper.Partial("EditorTemplates/Forms/TextArea", textAreaModel));
}
public static string RenderFormGroupTextArea(HtmlHelper html, TextAreaModel inputModel, LabelModel labelModel)
{
var input = RenderTextArea(html, inputModel);
var label = RenderLabel(html, labelModel ?? new LabelModel
{
htmlFieldName = inputModel.htmlFieldName,
metadata = inputModel.metadata,
htmlAttributes = new {@class = "control-label"}.ToDictionary()
});
var fieldIsValid = true;
if (inputModel != null)
fieldIsValid = html.ViewData.ModelState.IsValidField(inputModel.htmlFieldName);
return new FormGroup(input, label, FormGroupType.TextBoxLike, fieldIsValid).ToHtmlString();
}
public static HtmlString RenderTextArea(HtmlHelper html, TextAreaModel model)
{
var validationMessage = "";
if (model.displayValidationMessage)
{
var validation = html.ValidationMessage(model.htmlFieldName).ToHtmlString();
validationMessage = new HelpText(validation, model.validationMessageStyle).ToHtmlString();
}
model.htmlAttributes.MergeHtmlAttributes(html.GetUnobtrusiveValidationAttributes(model.htmlFieldName, model.metadata));
if (!string.IsNullOrEmpty(model.id))
model.htmlAttributes.AddOrReplace("id", model.id);
if (!string.IsNullOrEmpty(model.placeholder))
model.htmlAttributes.Add("placeholder", model.placeholder);
model.htmlAttributes.AddOrMergeCssClass("class", "form-control");
var htmlTextArea =
html.TextArea(model.htmlFieldName, model.value, model.rows, model.columns,
model.htmlAttributes.FormatHtmlAttributes()).ToHtmlString() + validationMessage;
TagBuilder inputWrapper = null;
if (!string.IsNullOrEmpty(model.inputElementWrapper))
{
inputWrapper = new TagBuilder(model.inputElementWrapper);
if (model.inputElementWrapperAttributes != null)
inputWrapper.MergeAttributes(HtmlHelper.AnonymousObjectToHtmlAttributes(model.inputElementWrapperAttributes));
inputWrapper.InnerHtml = htmlTextArea;
}
var htmlString = inputWrapper != null
? inputWrapper.ToString(TagRenderMode.Normal)
: htmlTextArea;
return new HtmlString(htmlString);
}
public IActionResult TextArea(TextAreaModel model)
{
return(View(model));
}
