c# - 我的 MVC3 razor View 中的 if 语句存在问题

Question

我需要根据模型中变量的值修改 razor View 中元素的显示。

我拥有的是 Model.PartitionKey，它是一个六字符的字符串。我需要编写一个 if 语句来检查该字符串的第 3 个和第 4 个字符是否为“00”。

这是我目前所拥有的:

@using (Ajax.BeginForm(
    action,
    "Contents",
    null,
    new AjaxOptions
    {
        UpdateTargetId = "update-message",
        InsertionMode = InsertionMode.Replace,
        HttpMethod = "POST",
        OnSuccess = success,
        OnFailure = "ajaxOnFailure"
    }, new { @id = "dialogForm", @class = "content ui-widget dialog-admin" }))
{

<div class="float-left">
    @Html.LabelFor(model => model.Status)
    @if (action == "Edit" || action == "Create") {
        @Html.DropDownList("Status", null, new { @class="drop-down", id = "dialogStatus", style="width: 120px" })
    }
    else
    {
        @Html.TextBox("Status", (string)ViewBag.Status, new { @readonly = true })      
    }
</div> 

@if ( Model.PartitionKey.Substring(2,2) == "00") {  
<div class="float-left">
    Html.LabelFor(model => model.Link)
    if (action == "Edit" || action == "Create") {
        Html.TextBoxFor(model => model.Link, new { size = 25 })
    } else {
        Html.TextBoxFor(model => model.Link, new { size = 25, @readonly = true })
    }
</div> 
}

问题是它在第 3 个字符“f”上以 @if 开头的行上有一条错误消息说“unexepected if keyword after the @ character”。

请注意，我在第一个代码块中的 if 之前有 @ 字符。然而，它只是在第二个代码块中提示。

Answer 1

尝试

@using (Ajax.BeginForm(
    action,
    "Contents",
    null,
    new AjaxOptions
    {
        UpdateTargetId = "update-message",
        InsertionMode = InsertionMode.Replace,
        HttpMethod = "POST",
        OnSuccess = success,
        OnFailure = "ajaxOnFailure"
    }, new { @id = "dialogForm", @class = "content ui-widget dialog-admin" }))
{

<div class="float-left">
    @Html.LabelFor(model => model.Status)
    @if (action == "Edit" || action == "Create") {
        @Html.DropDownList("Status", null, new { @class="drop-down", id = "dialogStatus", style="width: 120px" })
    }
    else
    {
        @Html.TextBox("Status", (string)ViewBag.Status, new { @readonly = true })      
    }
</div> 

if ( Model.PartitionKey.Substring(2,2) == "00") {  
<div class="float-left">
    @Html.LabelFor(model => model.Link)
    @if (action == "Edit" || action == "Create") {
        @Html.TextBoxFor(model => model.Link, new { size = 25 })
    } else {
        @Html.TextBoxFor(model => model.Link, new { size = 25, @readonly = true })
    }
</div> 
}
}