I have a GridView inside of a UpdatePanel. In a template field is a CheckBox I use for marking items. Functionally, this works fine, but the CheckBox always triggers a full page postback instead of a partial postback. How do I get the CheckBox to trigger a partial postback?
<asp:GridView ID="gv_test" runat="server" AutoGenerateColumns="false">
<Columns>
<asp:TemplateField>
<ItemTemplate>
<asp:CheckBox ID="cb_View_CheckAll" runat="server" AutoPostBack="true" OnCheckedChanged="cb_View_CheckAll_CheckedChanged"/>
</ItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
use trigger and scriptmanager
<asp:ScriptManager ID="script" runat="server"></asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel" runat="server">
<ContentTemplate>
</ContentTemplate>
<Triggers>
<asp:PostBackTrigger ControlID="cb_View_CheckAll" />
</Triggers>
</asp:UpdatePanel>
In your ScriptManager add EnablePartialRendering="true"
<asp:ScriptManager ID="ScriptManager1" runat="server" EnableViewState="False" EnablePartialRendering="true" EnableScriptGlobalization="true" > </asp:ScriptManager>
Or in Code Behind try to add AsyncPostbackTrigger
ScriptManager.GetCurrent(this).RegisterAsyncPostBackControl(gv_test);
Related
I have a textbox in a gridview templatefield and I want to handle its TextChanged event. The problem is using the UpdatePanel trigger I get the following message?
A control with ID 'txtQtd' could not be found for the trigger in UpdatePanel 'UpdatePanel1'
How can I incorporate this control into updatepanel?
<asp:UpdatePanel ID="UpdatePanel1" UpdateMode="Conditional" runat="server">
<ContentTemplate>
<asp:GridView ID="GridView1" runat="server">
<Columns>
<asp:BoundField DataField="Origin" ItemStyle-Width="8%" />
<asp:BoundField DataField="Destiny" ItemStyle-Width="8%"/>
<asp:TemplateField>
<ItemTemplate>
<asp:TextBox ID="txtQtd" AutoPostBack="true" OnTextChanged="txtQtd_TextChanged" runat="server"></asp:TextBox>
</ItemTemplate>
</asp:TemplateField>
<asp:BoundField DataField="Factor" ItemStyle-Width="8%" />
</Columns>
</asp:GridView>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="txtQtd" EventName="TextChanged" />
</Triggers>
</asp:UpdatePanel>
what you could do is put an invisible button that calls the txtQtd_TextChanged method from javascript, that is, you put the onchange property inside the textbox and when this is executed you will call the button with document.getElementById (MainContent_btn).click();
It's just an idea
I am fetching data from DB and assign it to repeater.
When I click on button event it only goes to page load function but not to the required on-click event.
I am confused as to why this is happening.
And when I comment out repeater its working fine. I don't why it's not working with repeater in page load.
Aspx code:
<form runat="server">
<asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>
<asp:UpdatePanel runat="server" pdateMode="Conditional" ChildrenAsTriggers="true" >
<asp:Button ID="Button2" runat="server" Text="Next Availabilities"
OnClick="Button2_Click" />
<asp:Repeater id="repeater1" runat="server">
<ItemTemplate>
<asp:Label ID="Label2" runat="server" Text=""><%# Eval("Time") %></asp:Label>
</ItemTemplate>
</asp:Repeater>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID ="Button3" EventName ="Click" />
<asp:AsyncPostBackTrigger ControlID ="Button2" EventName ="Click" />
</Triggers>
</asp:UpdatePanel>
</form>
In your UpdatePanel:
Correct pdateMode to UpdateMode
Remove ChildrenAsTriggers="true"
Add starting tag of <ContentTemplate>
Assign id ID="UpdatePanel1"
<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">
<ContentTemplate>
My project is a Asp.Net project. The code is written in vb.net.
There are file-upload and a gridview with this TemplatesField:
<asp:TemplateField HeaderText="Edit">
<ItemTemplate>
<a onserverclick="fnEditWork" class="AEditWork" href='<%#Eval("WorkID")' runat="server" id="EditWork"></a>
</ItemTemplate>
<ItemStyle Width="30px" />
</asp:TemplateField>
in this situation the file-upload works but the anchor does not fire post-back. (the 'fnEditWork' function on onserverclick does not fire.) But when I comment the file-upload code out then fnEditWork function fires.
How can I make it work?
You can do it with AJAX.
Put something like that arround it
<asp:ScriptManager ID="ScriptManager1" runat="server" />
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
</ContentTemplate>
<Triggers>
<asp:AsyncPostbackTrigger ControlID="AEditWork" EventName="onserverclick" />
</Triggers>
</asp:UpdatePanel>
I want to trigger my updatepanel change when I click on a HyperLink But I get an error saying:
Control with ID 'X' being registered through RegisterAsyncPostBackControl or RegisterPostBackControl must implement either INamingContainer, IPostBackDataHandler, or IPostBackEventHandler.
If I use ASP Button, then everything works correctly
My code:
<asp:ScriptManager ID="ScriptManager1" runat="server" />
<asp:UpdatePanel runat="server" id="UpdatePanel" updatemode="Conditional">
<Triggers>
<asp:AsyncPostBackTrigger controlid="UpdateButton2" eventname="Click" />
</Triggers>
<ContentTemplate>
<asp:Repeater ID="rptDossiers" runat="server">
<ItemTemplate>
...
</ItemTemplate>
</asp:Repeater>
<asp:HyperLink NavigateUrl="#" runat="server" id="UpdateButton2" onclick="tousLesDossiers_Click">
Tous les Dossiers
</asp:HyperLink>
<%--<asp:Button runat="server" id="UpdateButton2" onclick="tousLesDossiers_Click" text="Update" />--%>
</ContentTemplate>
</asp:UpdatePanel>
Any suggestions?
Thanks
There is no Click event handler that is tied to the Hyperlink control, you have to use LinkButton Instead
I have UserControl and within that control i have asp:ListView. Inside the ListView i have a asp:LinkButton. When i click on the LinkButton the control raises full postback, no matter if the UserControl is inside UpdatePanel or is not.
UserControl:
<asp:ListView ID="lvImages" runat="server" OnItemCommand="lvImages_ItemCommand">
<ItemTemplate>
<div>
<asp:Image runat="server" ID="imgImageThumb" ImageUrl='<%#Eval("Image") %>' GenerateEmptyAlternateText="true" />
<asp:LinkButton runat="server" ID="lbtnImageAdd" CommandName="Add" CommandArgument='<%#Container.DisplayIndex %>'
CausesValidation="false" Text="Add" />
</div>
<ItemTemplate>
</asp:ListView>
Page:
<asp:UpdatePanel ID="up" runat="server">
<ContentTemplate>
<cuc:UserControl ID="cucUserControl" runat=server/>
</ContentTemplate>
</asp:UpdatePanel>
You need to set the properties to let the update panel know what to trigger off of. Try setting ChildrenAsTrigger=true.