将值从Default.aspx.cs页发送到Default.aspx页javascript函数

Question

It says VM145:1 Uncaught ReferenceError: balance is not defined.

i have declared balance as: protected string balance as a class variable.

Default.aspx.cs page

    Response.Write("print_file(balance);");

Default.aspx javascript function

    function print_file(balance) {            
            alert("balance value is: " + balance);
            hide_innactive();
        }

I have tried this but the alert box returns empty

     function print_file() {
        var bal = "<%= balance %>";
        alert(bal);}

Answer 1

在您的代码后面使用它。

 ClientScript.RegisterStartupScript(this.GetType(), "PrintFile", "print_file('" + your parameter+ "');", true);