javascript 将 c# 数组传递给 java 脚本
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passing c# array to java script
提问by Inderpal Singh
I have an array in my page_load in c# which i want to access in java script but don't know how to do that..
我在 c# 中的 page_load 中有一个数组，我想在 java 脚本中访问它，但不知道该怎么做..
float [] energyArray = new float[count];
for (int i = 0; i < count; i++)
{
energyArray[i] = energyObj[i].FwdHr;
}
Now i want to access in javascript in place of data-
现在我想在 javascript 中访问而不是数据-
series: [{
name: 'Tokyo',
data: [7.0, 6.9, 9.5, 14.5, 18.2, 21.5, 25.2, 26.5, 23.3, 18.3, 13.9, 9.6]
}]
回答by CodingIntrigue
A very easy way is to use the JavaScriptSerializerclass to transform your C# object into JSON:
一个非常简单的方法是使用JavaScriptSerializer类将您的 C# 对象转换为 JSON：
C#
C＃
float [] energyArray = new float[count];
for (int i = 0; i < count; i++)
{
energyArray[i] = energyObj[i].FwdHr;
}
Javascript:
Javascript：
var dataArray = <%=new JavaScriptSerializer().Serialize(energyArray);%>;
var series = [{
name: 'Tokyo',
data: dataArray
}];
回答by LukeHennerley
Changing your problem a little bit here...
在这里稍微改变你的问题......
Instead of manipulating an already existing script, consider constructing the whole javascript string block and then use Page.RegisterClientScriptBlock.
与其操作已经存在的脚本，不如考虑构建整个 javascript 字符串块，然后使用Page.RegisterClientScriptBlock.
http://msdn.microsoft.com/en-us/library/system.web.ui.page.registerclientscriptblock.aspx
http://msdn.microsoft.com/en-us/library/system.web.ui.page.registerclientscriptblock.aspx
int[] yourArray = new int[] { 1, 2, 3 };
string arrElements = string.Join(",", yourArray.Select(x => x.ToString()).ToArray());
string strJs = string.Format("var yourArray=[{0}]", arrElements);
RegisterClientScriptBlock("Test", strJs);
回答by Igarioshka
you would need to pass the array to the client side (tha javascript part) somehow:
您需要以某种方式将数组传递给客户端（tha javascript 部分）：
I would suggest making an ajax request to a page, that would return the serialized array or as @Blade0rz suggested, to output the serialized string directly to the page. to serialize the array to a JSON format you would call the methods of the JavaScriptSerializer class:
我建议向页面发出 ajax 请求，该请求将返回序列化数组或如@Blade0rz 建议的那样，将序列化字符串直接输出到页面。要将数组序列化为 JSON 格式，您将调用 JavaScriptSerializer 类的方法：
more on it here
更多关于这里
回答by Freelancer
C# code behind:
后面的 C# 代码：
float [] energyArray = new float[count];
public JavaScriptSerializer javaSerial = new JavaScriptSerializer();
Try This Code:
试试这个代码：
<script>
var a = <%= this.javaSerial.Serialize(this.energyArray) %>;
for (var i = 0; i < a.length; i++) {
console.log(a[i]);
}
</script>
回答by Mikey Mouse
Declare a HiddenField
声明一个隐藏字段
<asp:HiddenField id="myHiddenField" runat="server"
Set it's value to your array.Tostring() in the code behind Then in your javascript
在后面的代码中将其值设置为您的 array.Tostring() Then 在您的 javascript 中
var h = document.getElementById('myHiddenField');
//Should give you an array of strings that you can cast to integers
