关于window.showModalDialog问题
问题1
为什么我将TextBox2的Visible 设为false,在运行时就出现如下脚本错误:
‘document.getElementById (...)’为空或不为对象。
-----------
1.aspx
function Selectclass()
{
var myWin;
myWin=window.showModalDialog( "1.aspx ", "dialogWidth=300px;dialogHeight=400px ");
if(myWin!=null)
{
document.getElementById ( "TextBox1 ").value=myWin[0];
document.getElementById ( "TextBox2 ").value=myWin[1];
}
}
<asp:TextBox ID= "TextBox1 " runat= "server "> </asp:TextBox>
<input id= "Butselect_class " type= "button " value= "选择栏目 " onclick = "Selectclass() " />
<asp:TextBox ID= "TextBox2 " runat= "server " Visible = "false " />
============
2.aspx
string script = " <Script language= 'javascript '> var ary = new Array( ' " + mycode1 + " ', ' "+mycode2 + " ');window.returnValue=ary;window.close(); </script> ";
Response.Write(script);
Response.End();
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==============
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问题2
将1.aspx中的TextBox1改为Label1,为什么Label1得不到值?
1.aspx
function Selectclass()
{
var myWin;
myWin=window.showModalDialog( "1.aspx ", "dialogWidth=300px;dialogHeight=400px ");
if(myWin!=null)
{
document.getElementById ( "TextBox1 ").value=myWin[0];
document.getElementById ( "TextBox2 ").value=myWin[1];
}
}
<asp:TextBox ID= "TextBox1 " runat= "server "> </asp:TextBox>
<input id= "Butselect_class " type= "button " value= "选择栏目 " onclick = "Selectclass() " />
<asp:Label ID= "Label1 " runat= "server " > </asp:Label>
------解决方案--------------------Visible 是服务器端的属性,如果设为false,
客户端的html中就不会有这个元素.