代码如下
<script type="text/javascript" language="javascript">
function checkData() {
var fileName = document.getElementById("iptFilePath").value;
if (fileName == "")
return;
var exName = fileName.substr(fileName.lastIndexOf(".") + 1).toUpperCase()
if (exName == "JPG" || exName == "BMP" || exName == "GIF") {
document.getElementById('<%= myimg.ClientID %>').src = fileName
document.getElementById('<%= myimg.ClientID %>').Visible = "true"
}
else {
alert("请选择正确的图片文件")
document.getElementById("iptFilePath").value = ""
}
}
</script>~~~~~~~~
<td style="height:"20"> <input id="iptFilePath" type="file" onchange="checkData()" contenteditable="false" size="34" runat="server" name="myFile" />
<asp:Image id="myimg" height="125" runat="server" style="width:150px;height:45px" />(图片文件不大于500K)
</td>
~~~~~~~~~
<script type="text/javascript" language="javascript">
function checkData() {
var fileName = document.getElementById("iptFilePath").value;
if (fileName == "")
return;
var exName = fileName.substr(fileName.lastIndexOf(".") + 1).toUpperCase()
if (exName == "JPG" || exName == "BMP" || exName == "GIF") {
document.getElementById('<%= myimg.ClientID %>').src = fileName
document.getElementById('<%= myimg.ClientID %>').Visible = "true"
}
else {
alert("请选择正确的图片文件")
document.getElementById("iptFilePath").value = ""
}
}
</script>~~~~~~~~
<td style="height:"20"> <input id="iptFilePath" type="file" onchange="checkData()" contenteditable="false" size="34" runat="server" name="myFile" />
<asp:Image id="myimg" height="125" runat="server" style="width:150px;height:45px" />(图片文件不大于500K)
</td>
~~~~~~~~~
解决方案 »
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