protected void Page_Load(object sender, EventArgs e)
{
txtName.Text = Request.QueryString["bname"];
txtAuthor.Text = Request.QueryString["bauthor"];
txtprice.Text=Request.QueryString["bprice"];
TextBox1.Text=Request.QueryString["bid"];
TextBox1.ReadOnly = true;
}
protected void btnSave_Click(object sender, EventArgs e)
{
string i=TextBox1.Text;
string n = txtName.Text;
string a = txtAuthor.Text;
string p = txtprice.Text;
不管怎么修改文本框的值,那几个变量的值始终是原来的值。
if (!ispostback)
{
txtName.Text = Request.QueryString["bname"];
txtAuthor.Text = Request.QueryString["bauthor"];
txtprice.Text=Request.QueryString["bprice"];
TextBox1.Text=Request.QueryString["bid"];
TextBox1.ReadOnly = true;
}
因为txtName.Text等一直保存着刚开始的赋值。你每一次修改文本框的值后,需要调用Page_Load方法,重新把文本框的值赋给txtName.Text等,然后调用btnSave_Click才会有效。