I am not understanding why this doesn't fire. It will not even call the event. Any thoughts? Really what I want to do, is prevent a full post-back. The page is large and each time it does a post back it jumps to the top.
<asp:UpdatePanel runat="server" id="UpdatePanel" updatemode="Conditional">
<ContentTemplate>
<p>
<asp:Label runat="server" ID="lblSnippet" AssociatedControlID="cmbSnippet">
From snippet:
</asp:Label>
<asp:DropDownList runat="server" ID="cmbSnippet" CssClass="dropdown" AutoPostBack="true">
<asp:ListItem>
None
</asp:ListItem>
<asp:ListItem>
Read Part
</asp:ListItem>
<asp:ListItem>
Read Feed
</asp:ListItem>
</asp:DropDownList>
</p>
<!--Code-->
<p>
<asp:Label runat="server" ID="lblCode" AssociatedControlID="txtCode">
From code:
</asp:Label>
<asp:TextBox runat="server" ID="txtCode" TextMode="MultiLine" CssClass="editor" MaxLength="100" Height="200" Wrap="false" />
</p>
</ContentTemplate>
<Triggers>
<asp:Asyncpostbacktrigger controlid="cmbSnippet" eventname="SelectedIndexChanged" />
</Triggers>
</asp:UpdatePanel>
you have not declared the event
something like this:
<asp:DropDownList runat="server" ID="cmbSnippet" CssClass="dropdown" AutoPostBack="true" OnSelectedIndexChanged="cmbSnippet_SelectedIndexChanged">
and his relative handler in codebehind...
Related
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel" runat="server">
<ContentTemplate>
<asp:Repeater ID="rpChat" runat="server" OnItemDataBound="rpChat_ItemDataBound" OnItemCommand="rpChat_ItemCommand">
<ItemTemplate>
<div id="divChatWindow" title='<%# Eval("username") %>' runat="server" class="clChatWindow">
<div>
<asp:Label runat="server" Text='<%# Eval("username") %>' class="divHeader"></asp:Label>
<img src="../../Menu/close.jpg" onclick="HideDiv(this)" style="float: right; width: 20px;
height: 20px;" /></div>
<div class="chatText">
<asp:Repeater ID="rpChatMessages" runat="server">
<ItemTemplate>
<asp:Image ID="imageForFriend" runat="server" CssClass="clFriendsImage" ImageUrl='<%# "HttpImageHandler.jpg?username=" + DataBinder.Eval(Container.DataItem,"fromusername").ToString() %>' />
<asp:Label ID="chatMessage" runat="server" Text='<%# Eval("Message") %>'></asp:Label>
<br>
</ItemTemplate>
</asp:Repeater>
</div>
<asp:TextBox ID="txtChatMessage" runat="server" Width="115px"></asp:TextBox>
<asp:LinkButton ID="btnSendChat" runat="server" CommandName="Insert" CommandArgument='<%# Eval("username") %>'>Send</asp:LinkButton>
</div>
</ItemTemplate>
</asp:Repeater>
</ContentTemplate>
</asp:UpdatePanel>
I have edited the code... Now what should I do? I have the linkbutton inside contenttemplate. Still a postback is happening
Any postback coming from any control outside an UpdatePanel will trigger a full postback unless you add those events as triggers of your UpdatePanel
In your example,
<asp:LinkButton ID="btnSendChat" runat="server" CommandName="Insert" CommandArgument='<%# Eval("Username2") %>'>Send</asp:LinkButton>
It's outside of the UpdatePanel and since you do not have triggers in your panel that will always cause a full postback
Solutions:
Approach 1
Place the LinkButton inside the UpdatePanel.ContentTemplate
Approach 2
Add triggers to your UpdatePanel
<Triggers>
<asp:AsyncPostBackTrigger ControlID="btnSendChat" EventName="Click" />
</Triggers>
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 two dropdownlist and i want when fist and second dropdownlist triger then fill updatepanel_sehiri_izmir_radiolist but i cant create dynamic radiobutonlist.i think use datalist and radiobuton list .but i cant run code
<asp:UpdatePanel ID="UpdatePanel_sehiri_izmir_radiolist" runat="server" ChildrenAsTriggers="True"
UpdateMode="Conditional">
<ContentTemplate>
<asp:DataList ID="DataList_sehiri_izmir_yeni" runat="server" DataSourceID="SqlDataSource_sehir_izmir"
OnItemCommand="DataList_sehiri_izmir_yeni_ItemCommand">
<ItemTemplate>
<asp:RadioButtonList ID="rb_sehiri_izmir" runat="server" AutoPostBack="True" RepeatDirection="Horizontal"
CommandArgument="gonder" RepeatColumns="1" RepeatLayout="Flow" OnSelectedIndexChanged="rb_sehiri_izmir_SelectedIndexChanged">
<asp:ListItem id="TestedYes" runat="server" Value='<%# Eval("imp_id") %>' Text='<%# Eval("imp_id") %>' />
<asp:ListItem id="TestedNo" runat="server" Value="False" Text="No" />
</asp:RadioButtonList>
</ItemTemplate>
</asp:DataList>
<asp:SqlDataSource ID="SqlDataSource_sehir_izmir" runat="server" ConnectionString="<%$ ConnectionStrings:Web_KentrehberiConnectionString %>"
SelectCommand="SELECT * FROM [Important_places]"></asp:SqlDataSource>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="drp_sehiri_izmir_ulke_adi" EventName="SelectedIndexChanged" />
<asp:AsyncPostBackTrigger ControlID="drp_sehiri_izmir_sehir_adi" EventName="SelectedIndexChanged" />
</Triggers>
</asp:UpdatePanel>
I've got a table which i want to update with a button, the table is within a "li" tag, and the button is in another. Here's my code:
<li runat="server">
<asp:DropDownList ID="cYear" runat="server" Width="100%" Font-Size="Large">
<asp:ListItem>2011</asp:ListItem>
...
</asp:DropDownList>
<asp:DropDownList ID="cMonth" runat="server" Width="100%" Font-Size="Large">
<asp:ListItem>1</asp:ListItem>
...
</asp:DropDownList>
<asp:DropDownList ID="cDay" runat="server" Width="100%" Font-Size="Large">
<asp:ListItem>1</asp:ListItem>
...
</asp:DropDownList>
<asp:TextBox ID="cNum" runat="server"></asp:TextBox>
<asp:Button ID="cEvent" onclick="cEvent_Click" CausesValidation="false"/>
</li>
<li runat="server">
<asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>
<asp:UpdatePanel id = "updatePanel1" runat="server" UpdateMode="Conditional">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="cEvent"/>
</Triggers>
<ContentTemplate>
...
</ContentTemplate>
</asp:UpdatePanel>
</li>
The Site is in Hebew so just ignore the wired string, the button Id is cEvent, and i want it to update the updatePanel, but instead it just doing nothing....
I have an autocompleteextender that displays the list of countries. In the same textbox, when I type something and click on "Search" button, a pop-up should be opened and should display the matching countries. I am using modalpopupextender for the popup.
aspx code:
<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional">
<contenttemplate>
<asp:TextBox id="TextBox1" runat="server" Width="250px"></asp:TextBox>
<asp:ImageButton id="ImageButton1" onclick="imgBtnSearch_Click" runat="server" ImageUrl="~/Images/Lab/search.jpg"></asp:ImageButton>
<cc1:AutoCompleteExtender id="TextBox1_AutoCompleteExtender" runat="server" EnableCaching="true" CompletionSetCount="10" MinimumPrefixLength="1" ServicePath="AutoComplete.asmx" UseContextKey="True" TargetControlID="TextBox1" ServiceMethod="GetCountryInfo">
</cc1:AutoCompleteExtender>
<cc1:ModalPopupExtender id="ModalPopupExtender1" runat="server" TargetControlID="ImageButton1" BackgroundCssClass="ModalPopupBG" Drag="true" PopupDragHandleControlID="PopupHeader" PopupControlID="updatePanel2" CancelControlID="btnCancel" ></cc1:ModalPopupExtender>
</contenttemplate>
</asp:UpdatePanel>
<asp:UpdatePanel id="updatePanel2" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<asp:RadioButtonList id="RadioButtonList1" runat="server" Width="400" Height="400" RepeatColumns="5" RepeatLayout="Table" RepeatDirection="Vertical" AutoPostBack="True"></asp:RadioButtonList>
<DIV class="Controls">
<INPUT id="btnOk" type="button" value="OK" />
<INPUT id="btnCancel" type="button" value="Cancel" />
</DIV>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="ImageButton1" EventName="Click"></asp:AsyncPostBackTrigger>
</Triggers>
</asp:UpdatePanel>
And in my codebehind:
protected void imgBtnSearch_Click(object sender, ImageClickEventArgs e)
{
LoadCountryPopUp();
ModalPopupExtender1.Show();
}
I am not getting any countries in my popup, although I get results via my autocompleteextender. On clicking the imagebutton, I get the popup without any content. Pls help!
Place your popup contents inside panel like this:
<asp:UpdatePanel id="updatePanel2" runat="server" UpdateMode="Conditional">
<ContentTemplate>
<asp:Panel id="pnlPopup" runat="server">
<asp:RadioButtonList id="RadioButtonList1" runat="server" Width="400" Height="400" RepeatColumns="5" RepeatLayout="Table" RepeatDirection="Vertical" AutoPostBack="True"></asp:RadioButtonList>
<DIV class="Controls">
<INPUT id="btnOk" type="button" value="OK" />
<INPUT id="btnCancel" type="button" value="Cancel" />
</DIV>
</Panel>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="ImageButton1" EventName="Click"></asp:AsyncPostBackTrigger>
</Triggers>
</asp:UpdatePanel>
and replace UpdatePanel's controls Id with this Panel's id:
<cc1:ModalPopupExtender id="ModalPopupExtender1" runat="server" TargetControlID="ImageButton1" BackgroundCssClass="ModalPopupBG" Drag="true" PopupDragHandleControlID="PopupHeader" PopupControlID="pnlPopup" CancelControlID="btnCancel" ></cc1:ModalPopupExtender>
and check if it works?
Try putting the extenders outside of the update panel, it should not be a child of what it is extending