How To Find Which Control Made The Asyncpostback
May 19, 2010
I know how to find which control made the postback, it's something like:
string postBackControl = Request.Params.Get("__EVENTTARGET") == null ? string.Empty : Request.Params.Get("__EVENTTARGET");
but how can I find the one that made async postback?
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Mar 2, 2011
I have an ASPX page with two UpdatePanels, one on the left that holds a Tree and other on the right where I load dynamically user controlsAsynchronously.One user control, that I used on right panel, has a FileUpload control and a button to save that file on server.FileUpload has a side button Upload, that is responsible for full postBack, but first time it fileUpload.HasFile is false, but second time its trueWhy?On dynamically loading userControl i am doing
((Master)this.Page.Master).RegisterPostbackTrigger(btnUpload);
and master has method
public void RegisterPostbackTrigger(Control triggerOn) {
ScriptManager1.RegisterPostBackControl(triggerOn);
}
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Oct 31, 2010
I have UpdatePanel with GridView and i want register posback triger for index changing and asyncpostback for pagging and sorting.
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Mar 8, 2011
I want to change the text of the user name text box which is inside a log in view on selected index chaged event of a drop down list.
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[Code]....
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Dec 26, 2010
What is AsyncPostBack, SyncPostBack and what is the difference between those methods?
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Nov 30, 2010
I have run into what seems to be a very famous problem: My updatepanel fires a full postback instead of a async postback. The normal solution is to give all controls you add dynamically an ID, which I have done, but I still get a full postback instead of my async postback. Here's the code:
HTML:
<asp:UpdatePanel ID="ItemsUpdatePanel" runat="server" UpdateMode="Conditional" ChildrenAsTriggers="False">
<Triggers>
</Triggers>
<ContentTemplate>
<asp:ListView ID="PlayerItems" runat="server" GroupItemCount="5"
onitemdatabound="PlayerItems_ItemDataBound">
<LayoutTemplate>
... Listview stuff ...
</asp:ListView>
</ContentTemplate>
</asp:UpdatePanel>
The interesting part is the C# code behind (method PlayerItems_ItemDataBound), which is like the following:
ImageButton imgBtn = new ImageButton();
imgBtn.ID = "itemBtn";
imgBtn.Width = Unit.Pixel(30);
imgBtn.ImageUrl = "~/Images/Game/Items/" + myItem.ItemImageUrl;
ContextMenu menu = new ContextMenu();
menu.BoundControls.Add(imgBtn);
menu.ItemCommand += new CommandEventHandler(menu_ItemCommand);
menu.AutoHide = true;
menu.RolloverColor = Color.Gray;
menu.ID = "MenuMenu";
Panel panel = (Panel)(e.Item.FindControl("ItemPanel"));
panel.Controls.Add(imgBtn);
panel.Controls.Add(menu);
AsyncPostBackTrigger trig = new AsyncPostBackTrigger();
trig.ControlID = menu.UniqueID;
trig.EventName = "ItemCommand";
ItemsUpdatePanel.Triggers.Add(trig);
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<%@ Page Language="C#" AutoEventWireup="true" CodeFile="GMapTest.aspx.cs" Inherits="GMapTest" %>
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[code]...
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Jan 8, 2010
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<asp:Content
ID="Content1"
[code]...
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Apr 1, 2011
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|#||4|64|pageRedirect||%2findex.aspx%3feventid%3d1079%26AspxAutoDetectCookieSupport%3d1|1|#||4|15647|updatePanel|ctl00_ContentPlaceHolder1_contentup|
<span id="ctl00_ContentPlaceHolder1_DEBUG"></span><div id="ctl00_ContentPlaceHolder1_content">
<div class="contentWrapper">
<div class="form">
<div id="errors">
<div id="ctl00_ContentPlaceHolder1_ctl03" style="display:none;">
</div></div>
[code]...
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Mar 27, 2011
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[Code]....
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Mar 27, 2010
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Aug 24, 2010
<script type="text/javascript">
var prm = Sys.WebForms.PageRequestManager.getInstance();
prm.add_endRequest(endRequest);[code]....
This code will work on every AsyncPostback, but I want it to work Update-Panel specific.Not being too familiar with JS, I don't know where I to do the modification.
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Sep 26, 2012
I have a simple file upload control inside grid, and have to upload file without postback in grid having button inside updatepanel.
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May 7, 2015
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[Code]....
[Code]....
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Jun 14, 2012
<asp:Content ID="Content3" runat="server" contentplaceholderid="ContentPlaceHolder3">
<asp:LoginView ID="LoginView1" runat="server">
<AnonymousTemplate>
<asp:Login ID="Login1" runat="server" BackColor="#FFFBD6" BorderColor="#FFDFAD"
BorderPadding="4" BorderStyle="Solid" BorderWidth="1px" Font-Names="Verdana"
Font-Size="0.8em" ForeColor="#333333" onauthenticate="Login1_Authenticate1"
[code].....
i have used an login control for the users who have not logged in and defined login verification method on the click event of the button but while excuting i do get an error
Error 1 The name 'Login1' does not exist in the current context
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[Code]....
.vb code
[Code]....
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OnItemInserted="DetailsView1_OnInsert"
OnItemDeleted="DetailsView1_OnDelete"
>
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</asp:BoundField>
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<br />
<asp:Panel ID="Panel2" runat="server" CssClass="dropdownpanel" >
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CellPadding="4" DataKeyNames="pkid_BackupDriveTypes" SelectedValue='<%# Bind("fkid_BackupDriveTypes") %>'
DataSourceID="SqlDataSource3" ForeColor="#333333" GridLines="None" OnSelectedIndexChanged="GridView2_OnChange">
<RowStyle BackColor="#EFF3FB" />
<Columns>
<asp:BoundField DataField="pkid_BackupDriveTypes"
HeaderText="pkid_BackupDriveTypes" InsertVisible="False" ReadOnly="True"
SortExpression="pkid_BackupDriveTypes" Visible="False" />
<asp:BoundField DataField="BackupDriveMake" HeaderText="Make"
SortExpression="Make" />
<asp:BoundField DataField="BackupDriveModel" HeaderText="Model"
SortExpression="Model" />
<asp:CommandField ShowSelectButton="True" />
</Columns>
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<PagerStyle BackColor="#2461BF" ForeColor="White" HorizontalAlign="Center" />
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<EditRowStyle BackColor="#2461BF" />
<AlternatingRowStyle BackColor="White" />
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</asp:Panel>
<asp:DropDownExtender ID="DropDownExtender2" runat="server" DropDownControlID="Panel2" TargetControlID="DropDownList5">
</asp:DropDownExtender>
</EditItemTemplate>
[Code]....
I also tried
[Code]....
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