asp.net中无限制弹出模态窗口
特点：
1. 可以在模态窗口上再弹出模态窗口,不限制次数
2. 弹出窗口的支持拖放，及调整大小
3. 弹出窗口关闭后可以动态控制是否刷新父窗口
总共需要3个页面来做演示
1. 页面ModalDemo.aspx
前台代码：
<head runat="server">
<title>无标题页</title>
<base target="_self" />
<script type="text/javascript">
function OpenDialogWithReturn(url,width,height,formID,action)
{
var retValue = window.showModalDialog( url ,null,"dialogWidth:" + width + "px;dialogHeight:" + height +"px;help:no;unadorned:yes;resizable:yes;status:no;scrollbars:yes");
if (retValue != null && retValue != undefined && retValue == "SubmitForm")
{
if(action != null && action != undefined && action.Length > 0)
{
formID.Action=action;
}
formID.submit();
}
}
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<a href="#" onclick="OpenDialogWithReturn('ModalPage1.aspx',520,410,form1,'ModalDemo.aspx');">通过页面脚本来弹出模态窗口</a><br />
<br />
<br /><asp:Button ID="btnDetail" runat="server"
onclick="btnDetail_Click" Text="通过动态注册弹出窗口" />
<br />
<div>
<%=DateTime.Now %>
</div>
</div>
</form>
</body>
后台代码：
protected void btnDetail_Click(object sender, EventArgs e)
{
this.ClientScript.RegisterStartupScript(this.GetType(), "","OpenDialogWithReturn('ModalPage1.aspx',520,410,form1,'ModalDemo.aspx');", true);
}
2．第二个页面ModalPage1.aspx
前台代码：
<head runat="server">
<title>第一个模态窗口</title>
<base target="_self" />
<script type="text/javascript">
function OpenDialogWithReturn(url,width,height,formID,action)
{
var retValue = window.showModalDialog( url ,null,"dialogWidth:" + width + "px;dialogHeight:" + height +"px;help:no;unadorned:yes;resizable:yes;status:no;scrollbars:yes");
if (retValue != null && retValue != undefined && retValue == "SubmitForm")
{
if(action != null && action != undefined && action.Length > 0)
{
formID.Action=action;
}
formID.submit();
}
}
</script>
</head>
<body onunload="window.returnValue='SubmitForm';">
<form id="form1" runat="server">
<div>
<a href="#" onclick="OpenDialogWithReturn('ModalPage2.aspx',500,400,form1,'ModalPage1.aspx');">
通过页面脚本来弹出模态窗口</a>
<br />
<br />
<asp:Button ID="Button1" runat="server" Text="通过动态注册脚本来弹出模态窗口"
OnClick="Button1_Click" />
<br />
<br />
<br />
<asp:Button ID="btnOK" runat="server" OnClick="btnOK_Click" Text="确定" />
<br />
<div>
<%=DateTime.Now %></div>
</div>
<asp:Button ID="Button2" runat="server" Text="添加" />
</form>
</body>
后台代码：
//弹出新的模态窗口
protected void Button1_Click(object sender, EventArgs e)
{
this.ClientScript.RegisterStartupScript(this.GetType(), "","OpenDialogWithReturn('ModalPage2.aspx',500,400,form1,'ModalPage1.aspx');", true);
}
//关闭当前窗口，并刷新父页面
protected void btnOK_Click(object sender, EventArgs e)
{
this.ClientScript.RegisterClientScriptBlock(this.GetType(), "","window.returnValue='SubmitForm';window.close();", true);
}
2. 第三个页面ModalPage2.aspx
前台代码：
<head runat="server">
<title>第二个模态窗口</title>
<base target="_self" />
</head>
<body onunload="window.returnValue='SubmitForm';">
<form id="form1" runat="server">
<div>
<asp:Button ID="Button1" runat="server" Text="ok" OnClick="Button1_Click" />
</div>
<div>
<asp:Button ID="Button2" runat="server" Text="添加" />
</div>
<br />
<div>
<%=DateTime.Now %></div>
</form>
</body>
后台代码：
//关闭当前窗口，并刷新父窗口
protected void Button1_Click(object sender, EventArgs e)
{
this.ClientScript.RegisterClientScriptBlock(this.GetType(), "","window.returnValue='SubmitForm';window.close();", true);
}