Razor观点:
@using (Html.BeginForm("Move", "Details", new { dict= dictionary}, FormMethod.Post)) {
//table with info and submit button
//dictionary => is a dictionary of type <Sales_Order_Collected, string>
}
控制器操作:
[HttpPost]
public string Move(Dictionary<Sales_Order_Collected, string> dict) {
return "";
}
有没有办法将模型字典传递给控制器?因为我的参数始终为null。
答案 0 :(得分:1)
您无法通过路线值传递字典。你可以这样做:
@using (Html.BeginForm("Move", "Details", null, FormMethod.Post)) {
<input type="text" name="[0].Key" value="first key"/>
<input type="text" name="[0].Value" value="first value"/>
<input type="text" name="[1].Key" value="second key"/>
<input type="text" name="[1].Value" value="second value"/>
}
这将发布词典。复杂对象的想法是相同的
答案 1 :(得分:0)
这是我的任何字典的HTML帮助程序:
public static IHtmlString DictionaryFor<TModel, TKey, TValue>(this HtmlHelper<TModel> htmlHelper,
Expression<Func<TModel, IDictionary<TKey, TValue>>> expression)
{
ModelMetadata metaData = ModelMetadata.FromLambdaExpression(expression, htmlHelper.ViewData);
IDictionary<TKey, TValue> dictionary = (IDictionary<TKey, TValue>)metaData.Model;
StringBuilder resultSB = new StringBuilder();
int i = 0;
foreach (KeyValuePair<TKey, TValue> kvp in dictionary)
{
MvcHtmlString hiddenKey = htmlHelper.Hidden($"{metaData.PropertyName}[{i}].Key", kvp.Key.ToString());
MvcHtmlString hiddenValue = htmlHelper.Hidden($"{metaData.PropertyName}[{i}].Value", kvp.Value.ToString());
resultSB.Append(hiddenKey.ToHtmlString());
resultSB.Append(hiddenValue.ToHtmlString());
i++;
}
return MvcHtmlString.Create(resultSB.ToString());
}
在这样的视图中调用它:
@Html.DictionaryFor(model => model.AnyDictionary)