如题:我的页面套用的主模板,想实现FileUpload1浏览图片后在Image1中显示(在上传图片之前),未套用主模板可以实现,套用主模板后点击浏览总是提示:
'document.all.Image1'是null或不是一个物件前台: protected void FileUpload1_Load(object sender, EventArgs e)
{
Image1.ImageUrl = FileUpload1.FileName;
}后台:
<asp:FileUpload ID="FileUpload1" onpropertychange="document.all.Image1.src=this.value" runat="server" OnInit="FileUpload1_Load" />
<asp:Image ID="Image1" runat="server" Height="396px" Width="470px" src="" alt="" />
请高手指点迷津!顺祝中秋节快乐!!!
'document.all.Image1'是null或不是一个物件前台: protected void FileUpload1_Load(object sender, EventArgs e)
{
Image1.ImageUrl = FileUpload1.FileName;
}后台:
<asp:FileUpload ID="FileUpload1" onpropertychange="document.all.Image1.src=this.value" runat="server" OnInit="FileUpload1_Load" />
<asp:Image ID="Image1" runat="server" Height="396px" Width="470px" src="" alt="" />
请高手指点迷津!顺祝中秋节快乐!!!
解决方案 »
免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货