在我的MVC网络应用程序中,我希望从textarea获取图像路径并显示它。这是我的代码片段,但它不起作用!
<label>Load Picture</label> 
<input id="uploadImage" type="file" name="myPhoto" accept="image/gif, image/jpeg, image/png" class="form-control" onchange="PreviewImage();" />
<script type="text/javascript">
function PreviewImage() {
var oFReader = new FileReader();
oFReader.readAsDataURL(document.getElementById("uploadImage").files[0]);
oFReader.onload = function (oFREvent) {
document.getElementById("uploadPreview").src = oFREvent.target.result;
};
};
</script>
<img id="uploadPreview" style="width: 350px; height: 400px;" class="form-control" /><br />
<label>Save</label>
<input type="button" class="btn btn-primary" value="Save" onclick="LoadCuepoint();" />
<script type="text/javascript">
function LoadCuepoint() {
textArea1.value = path.getElementById("uploadImage");
};
</script>
答案 0 :(得分:0)
您的代码不完整,但我假设您已经分别有文件输入和文本区域。如果是这样,以下应该有效:
<input type="file" onchange="handleFilePath(this);" />
<textarea id="filePathTextArea"></textarea>
文件更改后,您应该能够使用FileReader读取其路径:
function handleFilePath(input) {
// Initialize file variable
var file;
// Check if a file is actually selected
if (input.files && (file = input.files[0])) {
// Create a FileReader
var fileReader = new FileReader();
// Listen to its onload event
fileReader.onload = function(e) {
// Set the result to textarea
document.getElementById("filePathTextArea").value = e.target.result;
};
// Then read the file
fileReader.readAsDataURL(file);
}
}