I have this html that contains a UpdatePanel and a Button, I would like update my User Control(that have a UpdatePanel too) when Button click
I get this error: A control with ID 'btnSubmit' could not be found for the trigger in UpdatePanel when page load.
<asp:Content ID="Content1" ContentPlaceHolderID="content" runat="server">
<asp:UpdatePanel runat="server" ID="updatePanelMyUC" UpdateMode="Conditional" ChildrenAsTriggers="false">
<ContentTemplate>
<uc1:myUserControl runat="server" ID="myUserControlID"/>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="btnSubmit" EventName="Click" />
</Triggers>
</asp:UpdatePanel>
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="rightcolumn" runat="server">
<asp:ImageButton ID="btnSubmit" ImageUrl="../../Resources/btnSubmit.png" runat="server" OnClick="btnSubmit_Click" />
</asp:Content>
Your btnSubmit is outside the UpdatePanel.
Trigger of the UpdatePanel must be inside the ContentTemplate of the said UpdatePanel.
<asp:Content ID="Content1" ContentPlaceHolderID="content" runat="server">
<asp:UpdatePanel runat="server" ID="updatePanelMyUC" UpdateMode="Conditional" ChildrenAsTriggers="false">
<ContentTemplate>
<uc1:myUserControl runat="server" ID="myUserControlID"/>
<asp:ImageButton ID="btnSubmit" ImageUrl="../../Resources/btnSubmit.png" runat="server" OnClick="btnSubmit_Click" />
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="btnSubmit" EventName="Click" />
</Triggers>
</asp:UpdatePanel>
</asp:Content>
<asp:Content ID="Content2" ContentPlaceHolderID="rightcolumn" runat="server">
</asp:Content>
Related
I am trying to learn how to use UpdatePanel And this is my code.The problem is everything is ok but I cant see Loading.gif image .when code excatues Its wisible aspx page .What am i missing out here
<div>
<asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" />
<asp:Label ID="Label1" runat="server" Text=""></asp:Label>
</ContentTemplate>
</asp:UpdatePanel>
<asp:UpdateProgress ID="UpdateProgress1" runat="server" AssociatedUpdatePanelID="UpdatePanel1">
<ProgressTemplate>
<img src="load.gif" />
</ProgressTemplate>
</asp:UpdateProgress>
</div>
You should have trigger in UpdatePanel like this:
<Triggers>
<asp:AsyncPostBackTrigger ControlID="Button1" EventName="Click" />
</Triggers>
Try to use asp:Image:
<ProgressTemplate>
<asp:Image ID="loader" runat="server" ImageUrl="~/img/loader.gif" />
</ProgressTemplate>
I'm trying to use a modal popup extender on my page so when I click a button, it must show a panel. Here is what I have:
<asp:UpdatePanel runat="server" ID="updPanel">
<ContentTemplate>
<ajaxToolkit:ModalPopupExtender ID="mpeEmailComplete" runat="server" TargetControlID="btnTesting"
PopupControlID="pnl" OkControlID="btnOk"
BackgroundCssClass="modalBackground">
</ajaxToolkit:ModalPopupExtender>
<asp:Panel ID="pnl" runat="server" style="display:none;">
<asp:UpdatePanel ID="udp" runat="server">
<ContentTemplate>
<asp:Panel runat="server" ID="pnlEmailComplete" Visible="false">
<asp:Label runat="server" ID="lblTest" Text="Testing testing testing"></asp:Label>
<asp:Button runat="server" ID="btnOk" Text="OK" />
</asp:Panel>
</ContentTemplate>
</asp:UpdatePanel>
</asp:Panel>
<asp:Button runat="server" ID="btnTesting" Text="Testing"/>
</ContentTemplate>
</asp:UpdatePanel>
but i can't get the panel to popup when the button is clicked. Anybody know why?
Your innermost panel has Visible=false.
<asp:Panel runat="server" ID="pnlEmailComplete" Visible="false"> *(change here)*
So, when you press the TESTING button, the ModalPopupExtender correctly causes the outer panel to display, but it's displaying an invisible inner panel, hence you see nothing on screen.
<asp:Panel ID="pnl" runat="server" style="display:none;"> *(this is ok)*
To fix, just yank the Visible=false from the outer panel (pnlEmailComplete)
Hope that helps!
Do you have any JavaScript errors and is pnl.Visible=False; set on the server-side anywhere?
Make sure you have the AjaxControlToolkit referenced properly, NuGet is the easiest way to add the reference.
http://nuget.org/packages/ajaxcontroltoolkit
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:Button ID="Btnshow" runat="server" Text="Show" OnClick="Btnshow_Click" />
<asp:Button ID="BtnTarget" runat="server" Text="Target" Style="display: none" />
<asp:TextBox ID="TextBox1" runat="server">
</asp:TextBox>
<input type="button" value="Get" onclick="abc()" />
<asp:ModalPopupExtender ID="ModalPopupExtender1" runat="server" TargetControlID="BtnTarget"
PopupControlID="Panel1">
</asp:ModalPopupExtender>
<asp:Panel ID="Panel1" runat="server" BackColor="Black" Width="300px" Height="300px">
<asp:UpdatePanel ID="UpdatePanel2" runat="server" ChildrenAsTriggers="false" UpdateMode="Conditional">
<ContentTemplate>
<asp:Button ID="BtnHide" runat="server" Text="Hide Button" OnClick="BtnHide_Click" />
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="BtnHide" EventName="Click" />
</Triggers>
</asp:UpdatePanel>
</asp:Panel>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="Btnshow" EventName="Click" />
</Triggers>
</asp:UpdatePanel>
I Have a TextBox outside the UpdatePanel and a Button inside the Updatepanel When i click on the Button it show value in TextBox.
I Have Write Following Code.
<%# Register TagPrefix="AjaxToolKit" Assembly="AjaxControlToolkit"
Namespace="AjaxControlToolkit" %>
<asp:Content ID="Content2" ContentPlaceHolderID="MainContent" runat="server">
<asp:ScriptManager ID="ScriptManager1" runat="server"
EnablePageMethods="true" />
<asp:TextBox ID="TextBox5" runat="server" />
<asp:UpdatePanel runat="server" ID="Up1">
<ContentTemplate>
<asp:Button ID="btn" runat="server" onclick="btn_Click" />
</ContentTemplate>
</asp:UpdatePanel>
</asp:Content>
----------Code Behind---------
protected void btn_Click(object sender, EventArgs e)
{
TextBox5.Text = "20000";
}
Your textbox value can't be updated untill you put it in an update panel.
<ContentTemplate>
<asp:TextBox ID="TextBox5" runat="server" />
<asp:Button ID="btn" runat="server" onclick="btn_Click" />
</ContentTemplate>
OR, it would be better if you register a trigger of the button and pull your button out from your update, like...
<asp:UpdatePanel runat="server" ID="upnl" UpdateMode="Conditional" >
<ContentTemplate>
<asp:TextBox ID="TextBox5" runat="server" />
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="btn" EventName="Click" />
</Triggers>
</asp:UpdatePanel>
hi I'm having a problem with "Updateprogress" in ASP.NET . If i set the PostBackTrigger the progress loading image is not displayed but if i exclude the PostBackTrigger it's working. The code is as follows :
<body>
<form id="form1" runat="server">
<div>
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<Triggers>
<asp:PostBackTrigger ControlID="Submit" />
</Triggers>
<ContentTemplate>
<asp:FileUpload runat="server" ID="Up"></asp:FileUpload>
<asp:Button runat="server" Text="Upload" ID="Submit" OnClick="Submit_Click" CausesValidation="false" />
<asp:UpdateProgress ID="upd" runat="server">
<ProgressTemplate>
<img alt="Checking Status" src="ajax-loader(2).gif" />
<%--<asp:Image runat="server" ImageUrl="~/ajax-loader(2).gif" ID="img" />--%>
</ProgressTemplate>
</asp:UpdateProgress>
</ContentTemplate>
</asp:UpdatePanel>
</div>
</form>
</body>
Here is my code:
<body>
<form id="form1" runat="server">
<div>
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" UpdateMode="Conditional" ChildrenAsTriggers="false" runat="server">
<ContentTemplate>
<asp:Button ID="Button1" runat="server" Text="Click1" OnClick="Button1_Click" />
<br />
<br />
Last refresh
<%=DateTime.Now.ToString() %>
<br />
<br />
<asp:UpdatePanel ID="UpdatePanel2" UpdateMode="Conditional" ChildrenAsTriggers="true" runat="server">
<ContentTemplate>
<asp:Button ID="Button2" runat="server" Text="Click2" OnClick="Button2_Click" />
<br />
<br />
Last refresh
<%=DateTime.Now.ToString() %>
<br />
<br />
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="Button2" EventName="Click" />
</Triggers>
</asp:UpdatePanel>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="Button1" EventName="Click" />
</Triggers>
</asp:UpdatePanel>
</div>
</form>
</body>
Im using two update panels here, when i click "Button2" then "UpdatePanel2" was refreshed, if i click "Button1" then both update panel were refreshed, but my need is if i click "Button1" then "UpdatePanel1" have to be refreshed.
Thanks.
This behavior is by design. Because your UpdatePanel2 is nested inside of UpdatePanel1, when you refresh the contents of UpdatePanel1, this includes the child UpdatePanel.
If you want UpdatePanel2 to act separately from UpdatePanel1, you're going to have to take it out of UpdatePanel1 and make it a sibling, rather than a child.