我声明一个变量string sql;
protected void Button1_Click1(object sender, EventArgs e)
{
sql =DropDownList2.SelectedValue ;
Response.Write(sql);
}
protected void Button2_Click1(object sender, EventArgs e)
{
Response.Write(sql);
}
我现在想单击Button2的是很也显示sql要怎么做啊
protected void Button1_Click1(object sender, EventArgs e)
{
sql =DropDownList2.SelectedValue ;
Response.Write(sql);
}
protected void Button2_Click1(object sender, EventArgs e)
{
Response.Write(sql);
}
我现在想单击Button2的是很也显示sql要怎么做啊
或者用session或 viewstate保存你需要值。
viewstate[“sql”] = sql;
要取出来时
sql = (String)viewstate[“sql”] ;
{
sql =DropDownList2.SelectedValue ;
ViewState["sql"]=sql;
Response.Write(sql);
}
protected void Button2_Click1(object sender, EventArgs e)
{
if(ViewState["sql"]!=null)
Response.Write(ViewState["sql"].ToString());
}