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Re: custom queue table

03-15-2010, 9:16 PM

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

Re: custom queue table

Reply Quote

John,

You need copy the data when the OnPostback event fired, and maintain the table by your self.

If you don't use AJAX, the page will be submit and then all javascript data will be lost.

So you should use AJAX.

There's two primary AJAX :

1 - Microsoft AJAX , so you need maintain the data and show the talbe outside the UpdatePanel

2 - Use MvcUploader , and provider another UploadHandler.ashx

(See the MVC-CSharp sample page , Microsoft-MVC is not the must thing, MvcUploader support all asp.net pages)

Here is an advanced samle which tell you how to send data between server and client :

<%@ 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

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