UpdatePanel Does Not Work In A Web Application?
Mar 27, 2011
I have the following simple code:
<asp:UpdatePanel runat="server">
<ContentTemplate>
<asp:LinkButton runat="server" Text="Refresh"></asp:LinkButton>
</ContentTemplate>
</asp:UpdatePanel>
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:Label ID="LinkButton1" runat="server" Text="<%# DateTime.Now.ToString() %>"></asp:Label>
</ContentTemplate>
</asp:UpdatePanel>
And in the master page there is a ToolkitScriptManager. but the update panel does not work never similar to they do not exist.
Note: I use .Net 4.0.
Edit: I removed the ToolKitScriptManager and added ScriptManager and the problem still exists. Seems the Ajax functionality is disabled in my application but I do not know how.
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Similar Messages:
Aug 25, 2010
i have set of link buttons outside update panel but when click any one of them they donot work at all , when i set the postbackUrl they make full postback my source code :
<asp:Panel ID="pnl_viewImages" runat="server">
<asp:Label ID="lbl_viewImages" runat="server" style="texalign: left"
Text="view images :"></asp:Label>
<br />
<br />
<br />
<table cellpadding="0" cellspacing="0" style="width: 100%" class ="Alternating">
<tr>
<td colspan="5">
<asp:UpdatePanel ID="updatePnl_image" runat="server">
<ContentTemplate>
<asp:ListView ID="lv_showImages" runat="server">
<ItemTemplate>
<asp:Image ID="img_showNewsImage0" runat="server" Height="300px"
ImageUrl='<%# "RetreiveImage.ashx" %>' Width="413px" />
</ItemTemplate>
</asp:ListView>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="lbtn_first" EventName="Click" />
<asp:AsyncPostBackTrigger ControlID="lbtn_last" EventName="Click" />
<asp:AsyncPostBackTrigger ControlID="lbtn_next" EventName="Click" />
<asp:AsyncPostBackTrigger ControlID="lbtn_previous" EventName="Click" />
<asp:AsyncPostBackTrigger ControlID="lbtn_delete" EventName="Click" />
</Triggers>
</asp:UpdatePanel>
</td>
</tr>
<tr>
<td>
<asp:LinkButton ID="lbtn_first" runat="server" onclick="lbtn_first_Click">first</asp:LinkButton>
</td>
<td>
<asp:LinkButton ID="lbtn_previous" runat="server" onclick="lbtn_first_Click"><<</asp:LinkButton>
</td>
<td>
<asp:LinkButton ID="lbtn_next" runat="server" onclick="lbtn_first_Click"
>>></asp:LinkButton>
</td>
<td>
<asp:LinkButton ID="lbtn_last" runat="server" onclick="lbtn_first_Click">last</asp:LinkButton>
</td>
<td>
<asp:LinkButton ID="lbtn_delete" runat="server" onclick="lbtn_first_Click">delete</asp:LinkButton>
</td>
</tr>
</table>
<br />
</asp:Panel>`
i tried to remove the table but in vain it does not work also.
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Mar 16, 2010
I have read several post on the TreeView is not/partly working with the UpdatePanel, but none of them mention that an update (triggered by a timer) causes creation of multiple javascript functions in the HTML header. In Mozilla Firefox this a memory leak. I have created a test webapplication to demonstrate the issue we encounter.
[Code]....
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Jan 17, 2010
i have Accordion out side update panel ,
i want to add button as trigger of UpdatePanel where that Button inside Accordion,
i have tried this solution but its not give me any error but its dont update my udpanel, and when i have added it at design , it will give me error at runtime.
protected
void Page_Load(object sender,
EventArgs e) {
AsyncPostBackTrigger trigger =
new AsyncPostBackTrigger();
Button mybtn=Accordion1.FindControl("Mybtn") as Button;
trigger.ControlID =mybtn.ID;
trigger.EvernName="Click";
upUpdatePanel.Triggers.Add(trigger);
}
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May 28, 2010
I have two sliderextenders in a page, and one of them is in an UpdatePanel.When I slide the first one it set the minimum value and the number of steps of the second one (in the control panel) and it seems to work well.But if I slide the second one, as soon as I release the mouse button, my two sliders don't work anymore. I have to click them to change the value but can't slide them.
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Oct 19, 2010
i have update-panel which works fine in Google chrome, Mozilla, but not in IE(6,7 and 8). when i click refresh button postback is happening.
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Feb 18, 2011
The first dropdownlist is for the type: SELECT * FROM TypesThe second dropdownlist is for the brand: SELECT * FROM Brandsnd the third dropdownlist is for the model:SELECT a.id, a.descriptionFROM Models AS a INNER JOIN Items AS b on b.id_modelo = a.idWHERE b.id_type = @id_typeAND a.id_brand = @id_brandGROUP BY a.id,a.descriptionORDER BY a.descriptionI have an UPDATEPANEL only on the Models dropdownlist with the asynchronous trigger on the Brands dropdownlist.
THe problem is when i change the Type, i want the other 2 dropdownlists to reset or just the Models dropdownlist.
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Jan 21, 2010
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:FileUpload onchange="clickTheButton();" ID="FileUpload1" runat="server" />
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="Button1" />
</Triggers>
</asp:UpdatePanel>
Button 1 is outside the update panel and the javascript that gets run when a user adds a file in the upload box is this:
function clickTheButton() {
document.getElementById('<%= Button1.ClientID %>').click();
}
The problem is simple. FileUpload1.HasFile == false. I don't know why this is, but when I put it in the update panel it ceases to work.
I have seen some other threads on this. But none of them answer why this is happening, they just point to things you can download.
EDIT: Really my main reason for wanting to do this is so that I can get a ..Uploading File.. Tag to pop up while the client is uploading to the server and once it has completed, display it in a datalist. I just cant get the UpdateProgress to work.
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Aug 1, 2010
I have a page with a listview that shows something like posts. On each post there should be a "rate box" which works similar to the "Like" button in facebook. The rate box is a User Control, that has an update panel inside it.
If I put the control with some random values in the page it works great - but when I put it inside the ListView, where it should be located, it won't work. The method is being called, but nothing happens.
I simplified the code a bit to make it easier to understand:
[Code]....
While debugging I noticed the controls in the method "OnRateClick" are empty and don't contain the right values.
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Jul 29, 2010
I have Master Page with 2 ContentPlaceHolds , called "left" and "right"
[Code]....
I have a page override 2 ContentPlaceHolds of Master Page
In this page, i have 2 WebUserControls called WUCLeft is put into "left" and WUCRight put into "right"
[Code]....
WUCLeft has a button to load WUCRight into "right" ContentPlaceHold
[Code]....
[Code]....
WUCRight has one TextBox, one Button and one Label, when I click Button, the text of TextBox is assigned to Label
[Code]....
[Code]....
The problem occurs after I press Button on "left" ContentPlaceHold to load WUCRight.
In the first, I click on Button on "right" ContentPlaceHold, nothing happens (the Text of TextBox is not assigned to Label). In the second, i click on Button, page is submitted and all control in "right" ContentPlaceHole are cleared.
What did i do something wrong?
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Aug 27, 2010
I am trying to add validation on my form. I am using AJAX controls in my form fields.
When I remove the Update panel and AJAX control, my validation starts working, but when keeping both the things together, my validation is not working. How could I make them work together?
<script type="text/javascript">
function Validate() {
var QuestionTextArea = document.getElementById("ctl00_ctl00_cphBody_midbox_fvInsert_txtQuestion");
varError = "";
if (!IsTextBoxEmpty(QuestionTextArea, "
Question Text Area not be Empty.")) {
alert(varError);
document.getElementById("ctl00_ctl00_cphBody_midbox_fvInsert_txtQuestion").focus();
return false;
} return true;
}
</script>
<asp:UpdatePanel ID="UpdatePanel2" runat="server">
<ContentTemplate>
<asp:TextBox ID="txtQuestion" runat="server" MaxLength="1000" Columns="50" Rows="5" Style="width: 380px;
float: none" Text='<%# Bind("Description") %>' TextMode="MultiLine" />
<AjaxControl:TextBoxWatermarkExtender runat="server" TargetControlID="txtQuestion"
WatermarkCssClass="water" WatermarkText="Type your Question Here.">
</AjaxControl:TextBoxWatermarkExtender>
</ContentTemplate>
</asp:UpdatePanel>
When I removes ajax extender and Update Panel. My textbox gets validated and when using UpdatePanel. No javascript function created by me is called.
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Dec 15, 2010
i got a problem with the update panel it doesn't work
here's the code:
[Code]....
here's the codebehind:
[Code]....
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Mar 23, 2011
When there is an error with CompareValidators, the triggers for the UpdatePanel stop working. I didn't find any info about that..
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Jul 29, 2010
In HTML I usually use the techniqe to check for different statments by calling public Strings and like in this case if test == "notTrue" wich it is not, then the following code in the if statment wont render in the HTML.
It have worked out fine but it does not seem to work for the update panel that I declare. I get this error. I wonder why that is happening and if there is a way to to this in HTML like I do here ?
Microsoft JScript runtime error: Sys.InvalidOperationException: Could not find UpdatePanel with ID 'UpdatePanel1'. If it is being updated dynamically then it must be inside another UpdatePanel.
[Code]....
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Mar 3, 2010
Has anyone ever been able to get a button to work in an updatepanel for safari?
Clicking on the button does nothing.
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Jan 7, 2012
I booked new server and transfer old website to there I using in this site the ajax just updatepanel it's was works on old server without need to copy ajax dll to Bin folder after I transferred the site it's doesn't work and no any page error i tried copy ajax dll to bin folder but same problem.
Note:I installed on server .Net 4.0 and the site works on 3.5 also ajax was v3.5 i think the .Net 4 enough to run all.
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Sep 24, 2010
I got a aspx page using a master page. In the aspx page, i got multiple Content section: [Code]....
What I was trying to do is to perform a post back on Content Id "Content2" with a event trigger by both of the drop down list. The problem here is the drop down list is inside "Content 1".The error I got is: [Code]....
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Feb 24, 2011
I have webpage and a master page.In master page I defined a Label and ContentPlaceHolder :
[Code]....
In my webpage I have an updatepanel and a button that updates the Label.[Code]....
[Code]....
If the button is inside updapanel, nothing happens when I click the button (Label is not displayed), but if I move button outside the panel it works. (Button must be inside updatepanel and ofcourse no PostBackTrigger)
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Apr 21, 2010
I have some problem with the AutoCompleteExtender when it's include in an UpdatePanel.
Scenario:
I have create a UserControl with TextBox, AutoCompleteExtender and a "Save" LinkButton and I put this Control in the InsertItemTemplate of a ListView.
The AutoComplete uses a Method that I have created in a webservice.
All works fine untill i place my ListView in an UpdatePanel.
The webmethod don't fired. The strange thing is that if i put the same Control also out of my ListView it seems to work, but i can't catch the linkbutton click.
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Feb 26, 2010
I use a tabcontrol with 2 tabs. In the second tabpanel as seen in the code I use a Fileuploadcontrol to upload Images from a users computer.
The problem is that I need to surround the tabcontrol with an updatepanel as I dont want a fullpage postback when switching between these 2 tabpanels. In this code I have the tabcontrol inside an updatepanel but the problem is that the Fileupload controls does not seem to work inside an updatepanel.
How will I solve this problem as I dont want a fullpage postback when switching between the tabs ?
[Code]....
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Feb 2, 2010
I have an onclientclick property on a linkbutton that calls a javascript function.
inside Update Panel
[Code]....
iam getting the error at bold line . my listbox is inside Update Panel and link button too but java script is outside of Update Panel.
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Dec 5, 2010
I have a GridView in an UpdatePanel and in the code behind I bind to a Datatable and call the GridView's Sort method:
gvUsers.DataSource = dt;
gvUsers.DataBind();
gvUsers.Sort("DateOfBirth", SortDirection.Descending);
However, this doesn't sort the records. I have the Sort event as an asynch trigger for the grid.
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Feb 15, 2010
I'm just getting into AJAX (little late I know) and am walking through some of the tutorials on the ASP.NET/AJAX site. One thing I've noticed is that I cannot get the UpdatePanel to work (meaning, prevent a full postback of the page) in the ASP.NET Web Site template. I can use the EXACT same markup, code, and web.config in the AJAX 1.0-Enabled ASP.NET 2.0 template and everything works as expected.
Markup:
[Code]....
[Code]....
[Code]....
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Mar 1, 2010
im using javascript like
var TargetBaseControl = null;
window.onload = function()
{
try
{[code].... //get target base control.
w
hen i run the page and click the button then no more further processing just button has been click nothing happan......
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Jun 3, 2010
I'm using the technique described on this link to make all TextBoxes on the site highlighted when focused. Basically, in the Page_Load event of the MasterPage I set the onFocus and onBlur attributes for every TextBox found on the current page:
[Code]....
Everything worked fine until I decided to add the UpdatePanel on one page which is used for frequent data entry. Now, when the page loads initially everything is ok, but after the first asynchronus postback is made, controls inside the UpdatePanel seem to loose their onBlur and onFocus efects (controls outside the UpdatePanel are still working fine). I'm not in the best "relations" with AJAX and javascript :)
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