WebApp匯入資料之對話框實現

WebApp匯入資料之對話框實現——showModalDialog
1、應用場景
我常用的場景，列表的內容過多，dropdownlist顯示不便。例如：

1 <HTML>
2  <BODY>
3   <INPUT TYPE="text" NAME="name"><INPUT TYPE="button" VALUE="..." ONCLICK="">
4  </BODY>
5 </HTML>

2、預備知識要點
window.showModalDialog
Syntax
     vReturnValue = window.showModalDialog(sURL [, vArguments] [, sFeatures])
Parameters
     sURL         Required. String that specifies the URL of the document to load and display.
     vArguments   Optional.
     sFeatures    Optional. String
    dialogHeight:sHeight；dialogLeft:sXPos；dialogTop:sYPos；dialogWidth:sWidth；
    center:{ yes | no | 1 | 0 | on | off }；dialogHide:{ yes | no | 1 | 0 | on | off }；
    edge:{ sunken | raised }；help:{ yes | no | 1 | 0 | on | off }；
    resizable:{ yes | no | 1 | 0 | on | off }；scroll:{ yes | no | 1 | 0 | on | off }；
    status:{ yes | no | 1 | 0 | on | off }；unadorned:{ yes | no | 1 | 0 | on | off }
    e.g.: window.showModalDialog("SMD_target.htm","Dialog Arguments Value","dialogHeight: 73px; dialogWidth: 705px;
          dialogTop: 578px; dialogLeft: 531px; edge: Raised; center: Yes; help: Yes; resizable: Yes; status: Yes;");
Return Value
     Variant. Returns the value of the returnValue property as set by the window of the document specified in sURL .
a.Syntax
      window.returnValue [ = vValue ]
3、實現要點
a，打開靜態頁面
打開Dialog
HTML Code

function Button2_onclick() {
var ret=window.showModalDialog("DialogUrl.htm","","");
}

返回值
HTML Code

function Button1_onclick() {
window.returnValue="returnvalue-test";
}

b，打開動態頁面
HTML Code

function btnWithPostback_onclick() {
var ret=window.showModalDialog("DialogUrl.aspx","","");
}

返回值
VB Code

    Protected Sub btnPostback_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles btnPostback.Click        Dim s As String = _        "window.returnValue=""returnvalue-test"";"

        Page.ClientScript.RegisterStartupScript(Me.GetType(), "WinRet", s, True)
    End Sub