ASP.Net模型绑定-WebForms [英] ASP.Net Model binding - WebForms
问题描述
我被要求从事ASP.Net WebForms项目，我想像在ASP.Net MVC中一样使用ModelBinding.
I have been asked to work on an ASP.Net WebForms project and I want to use ModelBinding like I do in ASP.Net MVC.
我在使它起作用时遇到一些问题，如果可能，希望获得帮助.
I am having some problems in getting this to work and would like some help if possible.
如果我想将模型绑定到Form上的对象，则需要在FormView，GridView等中执行此操作，但是在这种情况下，我想使用FormView.
If I want to bind a model to objects on a Form I need to do this in a FormView, GridView and so on but in this instance I want to use a FormView.
下面的代码是我正在使用的简化版本，但每个方面都是相关的.
The below code is a simplified version of what I am working with but everybit relevant.
<asp:FormView runat="server" ID="frmMain" ItemType="WebFormsModelBinding.TestModel" SelectMethod="TestBinding_select" >
<ItemTemplate>
<asp:TextBox runat="server" ID="txtName" Text="<%#: BindItem.Name %>" />
<br/>
<asp:TextBox runat="server" id="txtAge" Text=" <%#: BindItem.Age %>" />
</ItemTemplate>
</asp:FormView>
<asp:Button runat="server" id="bttnInsert" Text="button"/>
我有一个试图将数据传递回模型的JQuery脚本，但我不断收到内部500错误
I have a JQuery script that is attempting to pass the data back to the model but I keep getting a Internal 500 Error
$(document).ready(function() {
$("#MainContent_bttnInsert")
.click(function() {
var params = {
Name: "Dave",
Age: 55
}
$.ajax({
type: "POST",
url: "default.aspx/TestBinding",
data: JSON.stringify(params),
contentType: "application/json; charset=utf-8",
dataType: "json",
//success: function (data) {
success: function () {
alert("it worked");
return false;
},
error: function (data) {
console.log(data);
alert("didnt work");
}
});
return false;
});
})
这应该在默认页面中点击此代码
This should hit this code in the default page
public partial class _Default : Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
[System.Web.Services.WebMethod]
public static bool TestBinding(TestModel model)
{
return true;
}
public TestModel TestBinding_select()
{
var model = new TestModel
{
Name = "Simon",
Age = 33
};
return model;
}
}
public class TestModel
{
public string Name { get; set; }
public int Age { get; set; }
}
我遇到的问题是，由于我无法使用ActionResult，因此必须声明不同的对象类型作为返回类型.在此示例中，我选择了布尔型，并且没有特定的原因.
The problems I am having is that as I cant use an ActionResult I have to declare a different object type as the return type. For this example I have chosen a bool and there is no specific reason for this.
为了创建WebMethod，我必须将方法设为静态.
In order to hit a WebMethod I have to make the method static.
我得到的错误是
无效的Web服务调用，缺少参数'model'的值."
"Invalid web service call, missing value for parameter: 'model'."
因此，在这种情况下，我可以将模型传递给UI并在FormView中呈现，但是我无法通过JQuery或回发传递模型.
So, I can pass a model to the UI and present it in the FormView in this instance, but I cannot pass a model back via JQuery or a postback.
是否缺少任何内容，或者真的必须将每个变量传递回然后将值传递给类，从而使模型绑定在WebForms中几乎没有意义
Is there anything that I am missing, or do I really have to pass each variable back and then pass the values to the class thus making model binding almost pointless in WebForms
推荐答案
如果您打算使用WebForms，则应该习惯使用PostBack模型，否则您将一直处于战斗状态针对所选框架.
If you ware going to work with WebForms, you should get used to working with the PostBack model, or you're going to be constanty fighting against the selected framework.
但是对于眼前的问题，请尝试以下操作:
But for the question at hand, try the following:
data: JSON.stringify({'model':params})
这篇关于ASP.Net模型绑定-WebForms的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
