如何将文本框值从一种形式传递到另一种形式 [英] how to pass the textbox value, from one form to another

问题描述

我创建了两种形式

1)form1
2)form2

我想将文本框的值从form1传递给form2

i have created two forms

1) form1
2) form2

i want to pass the value of the text box from form1 to form2

推荐答案

在form2上创建单个参数构造函数
即

create a single argument constructor on form2
i.e.

class Form2
{
string frm1_tb_value = string.Empty;

Form2(string value)
{
  frm1_tb_value = value;
}

}

现在，当您在Form1上创建Form2的对象以打开它时.在Form2构造函数的括号内传递文本框值
即

now when you create an object of Form2 on Form1 for opening it. pass textbox value inside the bracess of Form2 constuctor
i.e

Form2 frm = new Form2(textbox1.Text);
frm.Show();

这是将价值传递给其他形式的方法之一. :)

this is one of the ways, you can pass value to other forms. :)

有多个选项，

1)QueryString-该值将与url
一起传递
在form1中设置值

there are multiple options,

1) QueryString - the value will be passed with the url

in form1 set the value

Response.Redirect("~/form2.aspx?id=" + textbox1.text + "&city=" + textbox2.text);

在form2

in form2

string strValue1 = Request.QueryString["id"];
string strValue2 = Request.QueryString["city"];

2)会话状态

在form1中设置值

2) Session State

in form1 set the value

Session["id"] = textbox1.text;

在form2中获取值

in form2 get the value

string strValue = convert.toString(Session["Id"]);

其余选项最不重要，但是，我要在此处说明，针对这些主题使用Google来阅读一些基本细节.

3)跨页发布
4)饼干
5)应用状态

标记为答案是否有帮助

the rest of the options are least important, however, I am stating here, do Google for these topics, to read some basic details.

3) cross page posting
4) cookies
5) application state

mark as answer if helps you

声明会话变量，例如，

形式1:

declare session variable like that,

form1:

session["value"]=textbox1.text;

形式2:

form2:

<pre lang="c#">

textbox1.text = session ["value"];

textbox1.text=session["value"];

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