asp.net-mvc Asp.net MVC TextArea
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Asp.net MVC TextArea
提问by yogeswaran K
How to size the TextArea and assign Model Value to it in Asp.net Mvc
如何在 Asp.net Mvc 中调整 TextArea 的大小并为其分配模型值
回答by Aleksei Anufriev
Try this:
尝试这个：
<%=Html.TextAreaFor(
m => m.Description, 15, 20,
new RouteValueDictionary(new { @class = "someClass"}))%>
Edit:
This wont work as far as I know
编辑：
据我所知，这行不通
<%=Html.TextAreaFor(m => m.Description, new { cols = "20", rows = "15" })%>
because of this:
因为这：
private const int TextAreaRows = 2;
private const int TextAreaColumns = 20;
// ...
public static string TextArea(
this HtmlHelper htmlHelper, string name,
IDictionary<string, object> htmlAttributes) {
Dictionary<string, object> implicitAttributes = new Dictionary<string, object>();
implicitAttributes.Add("rows", TextAreaRows.ToString(CultureInfo.InvariantCulture));
implicitAttributes.Add("cols", TextAreaColumns.ToString(CultureInfo.InvariantCulture));
return TextAreaHelper(htmlHelper, name, true /* useViewData */, null /* value */, implicitAttributes, null /* explicitParameters */, htmlAttributes);
}
回答by meda
I found a simple away to achieve this.
我找到了一个简单的方法来实现这一目标。
Using models annotation razor will be smart enough to generate the textarea.
使用模型注释剃刀将足够智能以生成textarea.
Model:
模型：
[DataType(DataType.MultilineText)]
public string Comments { get; set; }
View:
看法：
@Html.EditorFor(model => model.Comments)
回答by Darin Dimitrov
Assuming you have a strongly typed view to some model class you could use the following:
假设您有某个模型类的强类型视图，您可以使用以下内容：
<%= Html.TextAreaFor(x => x.SomeProperty, new { rows = "20", cols = "10" }) %>
or:
或者：
<%= Html.TextAreaFor(x => x.SomeProperty, 20, 10, new { @class = "foo" }) %>
回答by Francois Rossello
Pitfallis @Html.TextAreaForbecause it has no overload which allow you assigning a Model Value.
陷阱是@Html.TextAreaFor因为它没有允许您分配模型值的过载。
Example 1:
示例 1：
@Html.TextAreaFor(m => m.Language, 6, 40, new { @class = "form-control",@value="Tft.WebRole.Properties.Settings.Default.DefaultLanguage"}
Example 1 wont raise exception and wont show any text. Let it down.
示例 1 不会引发异常并且不会显示任何文本。放下它。
Solution:
解决方案：
use @Html.TextAreainstead
使用@Html.TextArea替代
Example 2:
示例 2：
@Html.TextArea("Language", Tft.WebRole.Properties.Settings.Default.DefaultLanguage, 6, 40, new { @class = "form-control" })
Advice :
建议 ：
You should let down Aspx too because Razor is lighter and equivalent syntax.
您也应该放弃 Aspx，因为 Razor 更轻巧且语法相同。
Just use @instead of <%= %>.
只需使用@代替<%= %>.
