我有一个复杂的模型，我想填充它并将其发送到控制器来存储它。问题是，由于模型是递归的，我无法做到这一点，有谁知道如何做到这一点。
这是模型类：
public class TowerMeasureModel
{
public int Id { get; set; }
public string Name { get; set; }
public string Tower { get; set; }
public DateTime LaunchDateTime { get; set; }
public DateTime ScheduledDateTime { get; set; }
public DateTime EndDateTime { get; set; }
public SetupModel Setup { get; set; }
public TVList selectionDetails { get; set; }
public int LaunchType { get; set; }
public int Calib_Standard { get; set; }
public int Calib_Band { get; set; }
public int Calib_Setup { get; set; }
public int Status { get; set; }
public static readonly int MEASUREMENT = 0;
public static readonly int CALIBRATION = 1;
public static readonly int CALIB_ISDB = 10;
public static readonly int CALIB_DVB = 11;
public static readonly int CALIB_TER = 12;
public static readonly int CALIB_SAT = 13;
public static readonly int CALIB_SETUP_OPT1 = 14;
public static readonly int CALIB_SETUP_OPT2 = 15;
public static readonly int CALIB_SETUP_OPT3 = 16;
public static readonly int CALIB_SETUP_OPT4 = 17;
public static readonly int STATUS_WAITING = 20;
public static readonly int STATUS_STARTED = 21;
public static readonly int STATUS_PAUSED = 22;
public static readonly int STATUS_ABORTED = 23;
public static readonly int STATUS_FINISHED = 24;
}
其中
TVListpublic abstract class TVItem
{
[Key]
public string Name { get; set; }
public TVItem Parent { get; set; }
public List<TVItem> Children { get; set; }
public bool IsSelected { get; set; } = false;
}
正如您所观察到的，父级是递归的，这会导致表单出现问题。
表格如下：
<form method="post" id="pageForm" action="/Launch/Home/retrieveSelection">
<aside>
<div>
<input type="radio" id="Calibration" name="LaunchType" value=1 />
<label for="Calibration">Calibration</label>
<hr />
<input type="radio" id="Measurement" name="LaunchType" value=0 checked="checked"/>
<label for="Measurement">Measurement</label>
<hr />
<label for="LaunchName">Name this run:</label>
<input type="text" id="LaunchName" name="LaunchName" value="@DateTime.Now.ToString().Replace(" ","_").Replace("/","").Replace(":","")" />
<hr />
</div>
<a class="nav-link text-dark" asp-area="LaunchArea" asp-controller="Home" asp-action="Load">Load</a>
<a class="nav-link text-dark" asp-area="LaunchArea" asp-controller="Home" asp-action="Save">Save</a>
<a class="nav-link text-dark" asp-area="LaunchArea" asp-controller="Home" asp-action="Reset">Reset</a>
<input type="submit" class="myULclass" id="myButton" value="Send Run"/>
</aside>
<article>
<h2>Measurements</h2>
<div style="height:450px ; overflow-y:scroll">
<input type="hidden" name="Id" value="1234" />
<ul>
@{
foreach (TVStandard tvstandard in Model.selectionDetails.StandardsList) {
int index = Model.selectionDetails.StandardsList.IndexOf(tvstandard);
<li>
<input type="hidden" name="selectionDetails.StandardsList[@index].folderName" value="@tvstandard.folderName" />
<span class="caret"></span>
<input type="checkbox" class="checker" id="@tvstandard.Name" name="selectionDetails.StandardsList[@index].IsSelected" value="true">
<label for="@tvstandard.Name">@tvstandard.Name</label>
<ul class="nested">
@{
foreach (TVSection tvsection in tvstandard.Children) {
int index2 = tvstandard.Children.IndexOf(tvsection);
<li>
<input type="hidden" name="selectionDetails.StandardsList[@index].Children[@index2].scriptName" value="@tvsection.scriptName" />
<span class="caret"></span>
<input type="checkbox" class="checker" id="@tvsection.Name" name="selectionDetails.StandardsList[@index].Children[@index2].IsSelected" value="true">
<label for="@tvsection.Name">@tvsection.Name</label>
<ul class="nested">
@{
foreach (TVMode tvmode in tvsection.Children) {
int index3 = tvsection.Children.IndexOf(tvmode);
<li>
<input type="hidden" name="selectionDetails.StandardsList[@index].Children[@index2].Children[@index3].Name" value="@tvmode.Name" />
<span class="caret"></span>
<input type="checkbox" class="checker" id="@tvmode.Name" name="selectionDetails.StandardsList[@index].Children[@index2].Children[@index3].IsSelected" value="true">
<label for="@tvmode.Name">@tvmode.Name</label>
<ul class="nested">
@{
foreach (TVFreq tvfreq in tvmode.Children) {
int index4 = tvmode.Children.IndexOf(tvfreq);
<li>
<input type="hidden" name="selectionDetails.StandardsList[@index].Children[@index2].Children[@index3].Children[@index4].ID" value="@tvfreq.ID" />
<input type="checkbox" class="checker" id="@tvfreq.Name" name="selectionDetails.StandardsList[@index].Children[@index2].Children[@index3].Children[@index4].IsSelected" value="true">
<label for="@tvfreq.Name">@tvfreq.Name</label>
</li>
}
}
</ul>
</li>
}
}
</ul>
</li>
}
}
</ul>
</li>
}
}
</ul>
</div>
<hr />
<h2>Calibration</h2>
<select style="font-size:medium" form="pageForm" name="Calib_Standard">
<option value=10>ISDB</option>
<option value=11>DVB</option>
</select>
<select style="font-size:medium" form="pageForm" name="Calib_Band">
<option value=12>Terrestrial</option>
<option value=13>Satellite</option>
</select>
<select style="font-size:medium" form="pageForm" name="Calib_Setup">
<option value=14>Option 1</option>
<option value=15>Option 2</option>
<option value=16>Option 3</option>
<option value=17>Option 4</option>
</select>
</article>
</form>
关于如何检索表格有什么建议吗？
要提交复杂或递归模型表单，您可以使用 JavaScript 和 JSON。通过使用JS，您可以从表单中提取数据，然后发出ajax请求将数据提交到服务器端。
下面是示例代码，您可以使用它来做到这一点：
document.getElementById('myButton').addEventListener('click', function(event) {
event.preventDefault();
var model = buildJSONObjectFromForm();
fetch('/Launch/Home/RetrieveSelection', {
method: 'POST',
headers: {
'Content-Type': 'application/json',
'RequestVerificationToken' : document.querySelector('input[name="__RequestVerificationToken"]').value
},
body: JSON.stringify(model),
})
.then(response => response.json())
.then(data => {
// Handle the response data
})
.catch((error) => {
// Handle errors
});
});
控制器：
[HttpPost]
[ValidateAntiForgeryToken] // Include this if you're using ASP.NET's anti-forgery token
public ActionResult RetrieveSelection([FromBody] TowerMeasureModel model)
{
// Your code to handle the model saving it to the database
// Return a JSON response or other required action result
return Json(new { success = true, message = "Data received" });
}