我在更新面板中有一个 GridView，还有一个用于上传图像的 AsyncFileUpload（在更新面板之外）。所有这些都在一个使用SHOWMODALDIALOG.
我要实现的目标：
1. 文件上传完成后，更新面板就会更新，gridview 会显示用户刚刚添加的图像。
我面临的问题：
1. Gridview 不刷新，即使文件上传到数据库后我有一个 Databind 事件。更新面板正在通过__doPostBack('UpdatePanelID',' ')调用的 JS 进行刷新OnClientUploadComplete（我正在通过在更新面板中显示当前时间的标签进行检查）
2. 每当我单击“保存更改”或“取消”时，ModalDialog 都会打开一个新页面' 添加图像后的按钮。如果我只是打开窗口并单击这些按钮，它们就可以正常工作。我确实尝试包含<base target="_self" />在 中<head>，最后解决了window.name="xxx" onload body。
任何帮助表示赞赏。我的代码：
ASPX
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="RCMT0032.aspx.vb" Inherits="RCWKSHEET.RCMT0032" EnableEventValidation="false"%>
<%@ Register TagPrefix="asp" Namespace="AjaxControlToolkit" Assembly="AjaxControlToolkit"%>
<html>
<head>
<base target="RCMT0032" />
<title>RCMT0032</title>
<script type="text/javascript">
function readpasseddata() {
window.name = 'RCMT0032';
var rpt = window.dialogArguments;
document.getElementById("HiddenReport").value = rpt;
}
function UploadComplete(sender, args) {
__doPostBack('gvupd', '');
}
</script>
</head>
<body onload="readpasseddata()" >
<form id="Form1" method="post" runat="server" target="RCMT0032" >
<asp:ToolkitScriptManager ID="ToolkitScriptManager1" runat="server"></asp:ToolkitScriptManager>
<asp:AsyncFileUpload id="BrowserHidden" Width="1" runat="server" OnClientUploadComplete="UploadComplete" OnUploadedComplete="BrowserHidden_UploadedComplete"/>
<button class="ActionButton" id="btnSave" runat="server">Save & Exit</button>
<button class="ActionButton" id="btnClose" runat="serverCancel</button>
<asp:UpdatePanel id="gvupd" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<asp:Label runat="server" ID="Label1" />
<asp:GridView id="GridView1" Runat="server" AutoGenerateColumns="False"
AllowPaging="false" EnableViewState="true" datakeynames="Seq">
<Columns>
<asp:TemplateField HeaderText="Comments">
<ItemTemplate><asp:TextBox ID="comments" Enabled="true" MaxLength="249" TextMode="MultiLine" Text='<%# Eval("Comments") %>'/>
</asp:TemplateField>
<asp:TemplateField HeaderText="Picture">
<ItemTemplate><asp:HyperLink id="PictHyper" runat="server" Target="_blank" ImageUrl='<%# String.Format("RCMT0033.aspx?report={0}&seq={1}", Eval("ReportNumber"), Eval("Seq"))%>' NavigateUrl='<%# String.Format("RCMT0034.aspx?report={0}&seq={1}", Eval("ReportNumber"), Eval("Seq"))%>' /></ItemTemplate></asp:TemplateField>
<asp:TemplateField HeaderText="Delete">
<ItemTemplate><asp:CheckBox runat="server" ID="DeleteCB" /></ItemTemplate>
</asp:TemplateField></Columns>
</asp:GridView>
</ContentTemplate>
</asp:UpdatePanel>
</div>
</form>
</body>
</html>
背后的代码
Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.LoaD
If Not IsPostBack Then
LoadData()
DataBind()
Else
With ViewState
_intReportNumber = CInt(.Item("Report"))
_strVendorNumber = CStr(.Item("VendorNumber"))
_strStatus = CStr(.Item("Status"))
End With
End If
End Sub
Public Sub LoadData()
//GET DATA INTO DATATABLE DT
GridView1.DataSource = dt
GridView1.DataBind()
Catch err As Exception
Throw err
End Try
End Sub
Protected Sub UploadData()
If BrowserHidden.PostedFile IsNot Nothing AndAlso BrowserHidden.PostedFile.FileName <> "" Then
Try
//UPLOAD STUFF
GridView1.DataBind()
Catch ex As Exception
End Try
End If
End Sub
Protected Sub btnClose_ServerClick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnClose.ServerClick
canceladd()
ScriptManager.RegisterStartupScript(Page, Me.GetType(), "onclick", "window.open('','_self',''); window.close();", True)
End Sub
Protected Sub BrowserHidden_UploadedComplete(ByVal sender As System.Object, ByVal e As AjaxControlToolkit.AsyncFileUploadEventArgs)
UploadData()
End Sub
Protected Sub gvupd_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles gvupd.Load
Label1.Text = DateTime.Now.ToString()
End Sub
Protected Sub btnSave_ServerClick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnSave.ServerClick
FinalizeAdd()
Page.ClientScript.RegisterStartupScript(Me.GetType(), "onclick", "window.open('','_self',''); window.close();", True)
End Sub