I have always used .NET to do C / S mode development, recently use .NET to do B / S mode development. I found that the value of variables defined in WebForm will be lost, where is it there?
I did some tests, I used WebControl on the Webform, when I do some operations to let the page submit the server, this time, things are gone.
Here is my test, I hope the expert guidance:
1. I put two TextBox and two button on the page, named TB_1, TB_2, BTN_1, BTN_2, respectively.
II. I define two variables on the page.
Private Stirng Str1 = "";
Private static string str2 = "";
Third. Give them the value when the page is loaded, I just want to do it during the first time.
IF (! this.ispostback)
{
STR1 = "1";
STR2 = "2";
}
IV. I want to use the value of the variable when I point the button.
BTN_1_Click ----> this.tb_1.text = str1;
BTN_2_Click ----> this.tb_2.text = STR2;
5. How is the result?
The first no thing, the second can get a value.
why?
Is it as long as the page refreshes, all member variables are redefined?
The value of the static variable is retained. Is it necessary to use a static variable if it is to achieve this?
I don't know if this is the right solution, I hope the expert advice. :)
Contact: denny_lzh@hotmail.com
