如何通过[FromForm]从asp.net核心的form-data中获取键值数组

[HttpPost]
public IActionResult ProcessFormData([FromForm] FormDataModel formData)
{
    // 处理表单数据
    // ...
}

public class FormDataModel
{
    public Dictionary<string, string> KeyValuePairs { get; set; }
}

<form method="post" action="/ControllerName/ProcessFormData">
    <input type="text" name="KeyValuePairs[key1]" value="value1" />
    <input type="text" name="KeyValuePairs[key2]" value="value2" />
    <input type="text" name="KeyValuePairs[key3]" value="value3" />
    <!-- 其他表单字段 -->
    <input type="submit" value="提交" />
</form>

[HttpPost]
public IActionResult ProcessFormData([FromForm] FormDataModel formData)
{
    // 处理表单数据
    foreach (var kvp in formData.KeyValuePairs)
    {
        string key = kvp.Key;
        string value = kvp.Value;
        
        // 处理键值对
        // ...
    }
    
    return RedirectToAction("Success");
}