public static IHtmlContent Select2ListBoxFor <TModel, TValue, T1, T2>(this IHtmlHelper <TModel> html, Expression <Func <TModel, TValue> > expression, Dictionary <T1, T2> source, string defaultValue = null, object htmlAttribute = null, Select2Option option = null)
{
option ??= new Select2Option();
var metadata = html.GetModelExplorer(expression);
var htmlFieldName = html.FieldNameFor(expression);
var id = html.FieldIdFor(expression);
var displayName = metadata.Metadata.DisplayName ?? metadata.Metadata.PropertyName ?? htmlFieldName.Split('.').Last();
var value = metadata.Model;// == null ? null : Convert.ChangeType(metadata.Model, typeof(T1));
var selectList = new SelectList(source, "Key", "Value", value);
var items = selectList.Cast <SelectListItem>().ToList();
if (defaultValue.HasValue())
{
items.Insert(0, new SelectListItem {
Value = null, Text = defaultValue
});
}
var attributes = ComponentUtility.MergeAttributes(htmlAttribute, new { @class = "form-control", style = "width: 100%", placeholder = displayName });
var editor = html.ListBoxFor(expression, items, attributes);
var result =
editor.ToHtmlString() +
html.StyleOnce(ComponentUtility.GetCssTag(select2_css, select2_css_cdn)).ToHtmlString() +
html.StyleOnce(ComponentUtility.GetCssTag(select2_custom_css, null)).ToHtmlString() +
html.ScriptOnce(ComponentUtility.GetJsTag(select2_js, select2_js_cdn)).ToHtmlString() +
(option.Attributes["language"] == null ? "" : html.ScriptOnce(ComponentUtility.GetJsTag(string.Format("DNZ.MvcComponents.Select2.i18n.{0}.js", option.Attributes["language"].ToString().Trim('\'')), null)).ToHtmlString()) +
html.Script(@"
<script>
$(function(){
$(""#" + id + @""").select2(" + option.RenderOptions() + @");
});
</script>").ToHtmlString();
return(new HtmlString(result));
}
public static IHtmlContent Select2DropDown <T1, T2>(this IHtmlHelper html, string name, T1 value, Dictionary <T1, T2> source, string defaultValue = null, object htmlAttribute = null, Select2Option option = null)
{
option ??= new Select2Option();
var id = html.GenerateIdFromName(name);
var selectList = new SelectList(source, "Key", "Value", value);
var items = selectList.Cast <SelectListItem>().ToList();
//if (defaultValue.HasValue())
// items.Insert(0, new SelectListItem { Value = null, Text = defaultValue });
var attributes = ComponentUtility.MergeAttributes(htmlAttribute, new { @class = "form-control", style = "width: 100%" });
var editor = html.DropDownList(name, items, defaultValue, attributes);
var result =
editor.ToHtmlString() +
html.StyleOnce(ComponentUtility.GetCssTag(select2_css, select2_css_cdn)).ToHtmlString() +
html.StyleOnce(ComponentUtility.GetCssTag(select2_custom_css, null)).ToHtmlString() +
html.ScriptOnce(ComponentUtility.GetJsTag(select2_js, select2_js_cdn)).ToHtmlString() +
(option.Attributes["language"] == null ? "" : html.ScriptOnce(ComponentUtility.GetJsTag(string.Format("DNZ.MvcComponents.Select2.i18n.{0}.js", option.Attributes["language"].ToString().Trim('\'')), null)).ToHtmlString()) +
html.Script(@"
<script>
$(function(){
$(""#" + id + @""").select2(" + option.RenderOptions() + @").change(function () {
$(this).valid();
});
});
</script>").ToHtmlString();
return(new HtmlString(result));
}
