I have a FileUpload Control like this
<asp:FileUpload ID="fileuploader" runat="server" />
Now I want to apply css only on the Browse button part
How can I do this?
By default the FileUpload control doesn't have a property to restrict file types when the select file window is opened. However, you can check the file uploaded extension before continuing the process. Its simple. Get the extension of the file selected via FileUpload control using the below code.
The simple solution for preventing file loss from an upload control on postback is to put the upload control outside of an update panel control on a . aspx page. Or, in other words, put all the input controls that might trigger a postback inside an update panel.
Styling an input
tag with type="file"
requires a bit of work, browsers don't behave similarly when you try to style them unfortunately.
There are a few methods of doing so though:
This is possible you can change the FileUpload
control using following code.
Step 1: Change FileUpload control with this code on aspx page
<label class="file-upload">
<span><strong>Upload Image</strong></span>
<asp:FileUpload ID="FileUpload1" runat="server" >
</asp:FileUpload>
</label>
Step 2: now add below CSS code into your main CSS file
.file-upload {
display: inline-block;
overflow: hidden;
text-align: center;
vertical-align: middle;
font-family: Arial;
border: 1px solid #124d77;
background: #007dc1;
color: #fff;
border-radius: 6px;
-moz-border-radius: 6px;
cursor: pointer;
text-shadow: #000 1px 1px 2px;
-webkit-border-radius: 6px;
}
.file-upload:hover {
background: -webkit-gradient(linear, left top, left bottom, color-stop(0.05, #0061a7), color-stop(1, #007dc1));
background: -moz-linear-gradient(top, #0061a7 5%, #007dc1 100%);
background: -webkit-linear-gradient(top, #0061a7 5%, #007dc1 100%);
background: -o-linear-gradient(top, #0061a7 5%, #007dc1 100%);
background: -ms-linear-gradient(top, #0061a7 5%, #007dc1 100%);
background: linear-gradient(to bottom, #0061a7 5%, #007dc1 100%);
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#0061a7', endColorstr='#007dc1',GradientType=0);
background-color: #0061a7;
}
/* The button size */
.file-upload {
height: 30px;
}
.file-upload, .file-upload span {
width: 90px;
}
.file-upload input {
top: 0;
left: 0;
margin: 0;
font-size: 11px;
font-weight: bold;
/* Loses tab index in webkit if width is set to 0 */
opacity: 0;
filter: alpha(opacity=0);
}
.file-upload strong {
font: normal 12px Tahoma,sans-serif;
text-align: center;
vertical-align: middle;
}
.file-upload span {
top: 0;
left: 0;
display: inline-block;
/* Adjust button text vertical alignment */
padding-top: 5px;
}
It's done.
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