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AjaxUploader

Last post 05-05-2010, 11:45 AM by cutechat. 5 replies.


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05-01-2010, 8:36 PM 60586

hassan
Joined on 07-21-2008
Posts 43

AjaxUploader

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With Manual Upload, is there any way to send simple string data with the uploader from client to the server ?

05-02-2010, 8:38 PM 60623 in reply to 60586

Adam
Joined on 09-23-2003
Aurora, ON
Posts 18,678

Re: AjaxUploader

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hassan,

If it's a simple string data, you can use hidden field to send data from client side to the server.

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05-04-2010, 12:02 AM 60654 in reply to 60586

cutechat
Joined on 07-22-2004
Posts 2,332

Re: AjaxUploader

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Hi,

This sample tells you how to pass data for each file :

<%@ Page Language="C#" %>

<%@ Import Namespace="CuteWebUI" %>
<%@ Register TagPrefix="CuteWebUI" Namespace="CuteWebUI" Assembly="CuteWebUI.AjaxUploader" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

protected void UploadAttachments1_AttachmentAdded(object sender, AttachmentItemEventArgs args)
	{
		TextBox tb = (TextBox)args.Item.FindControl("textboxDesc");
		tb.Text = args.Item.ClientData;
	}

protected void UploadAttachments1_AttachmentCreated(object sender, AttachmentItemEventArgs args)
	{
		TextBox tb = (TextBox)args.Item.FindControl("textboxDesc");
		tb.TextChanged += new EventHandler(tb_TextChanged);
	}

void tb_TextChanged(object sender, EventArgs e)
	{
		TextBox tb=(TextBox)sender;
		for (Control c = tb; c != null; c = c.Parent)
		{
			if (c is AttachmentItem)
			{
				((AttachmentItem)c).ClientData = tb.Text;
				return;
			}
		}
	}

protected void buttonTell_Click(object sender, EventArgs e)
	{
		StringBuilder sb = new StringBuilder();
		sb.Append("There's " + UploadAttachments1.Items + " items:");
		foreach (AttachmentItem item in UploadAttachments1.Items)
		{
			sb.Append("<br/>");
			sb.Append(item.FileName);
			sb.Append("&nbsp;&nbsp;&nbsp;&nbsp;-&nbsp;&nbsp;&nbsp;&nbsp;");
			sb.Append(item.ClientData);
		}
		labelMsg.Text = sb.ToString();
	}
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
	<title>Untitled Page</title>
</head>
<body>
	<form id="form1" runat="server">
		<div>
			<button id='btnUpload' style="display: none;" onclick="Upload_Click();return false;">
				Start Upload</button>
			<CuteWebUI:UploadAttachments runat="server" ID="UploadAttachments1" ManualStartUpload="True"
				OnAttachmentAdded="UploadAttachments1_AttachmentAdded" OnAttachmentCreated="UploadAttachments1_AttachmentCreated"
				NumFilesShowCancelAll="1000" InsertText="Add files">
				<ItemTemplate>
					<asp:TextBox runat="server" ID="textboxDesc" />
				</ItemTemplate>
			</CuteWebUI:UploadAttachments>
			<br />
			<table id='clientTable' style="display: none; font-size: 9pt; border-collapse: collapse"
				border="1" cellspacing="0" cellpadding="5">
				<tr>
					<td>
						FileName
					</td>
					<td>
						Description
					</td>
					<td>
						Status
					</td>
				</tr>
			</table>
			<br />
			<asp:Button runat=server ID="buttonTell" Text="Tell me how to get the server textbox values" OnClick="buttonTell_Click" OnClientClick="return buttonTell_Click()" />
			<br />
			<asp:Label runat=server ID="labelMsg" />
		</div>
	</form>
</body>

</html>

Regards,
Terry

05-04-2010, 5:06 AM 60665 in reply to 60654

hassan
Joined on 07-21-2008
Posts 43

Re: AjaxUploader

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Thanks for your reply.

We are using the uploader in an MVC app and we are uploading 1 file at a time. Is the simplest way to just use a hidden field? if so which is the most appropriate event of the uploader we should we use to trigger the storage in the hidden field ?

Many Thanks

05-05-2010, 11:45 AM 60743 in reply to 60665

cutechat
Joined on 07-22-2004
Posts 2,332

Re: AjaxUploader

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Hi,

You need understand the steps how the uploader works for MVC

The uploader will make a GUID for each file, and upload it to server at first.

After the file data be uploaded , it's a temp file on server side.

You can get the GUID on client side , and then you can send the GUID and your custom data to the server side via submitting the form.

At server side, you can use the mvcuploader.GetUploadedFile(guid) to get the temp file.

By the way , did you check our samples for the MVC ?

Regards,
Terry