I have a ModalPopup that will contain a gridview and 4 fields to enter items into the gridview itself.
Is it possible to postback to the server and update the gridview while keeping the modal open?
When you submit the fields and the postback occurs the modal closes has anyone done this before? Someone mentioned a solution using jQuery, but this was long ago.
Wrapping the popup's content (i.e. not the popup itself!) in an UpdatePanel worked for me.
My popup content is a search panel with sortable/pageable grid of results. The UpdatePanel gave me the exact behaviour I require with no additional code.
Thanks to Patel Shailesh for the idea.
<asp:Panel runat="server" ID="PopupPanel" Height="650" Width="900" Style="display: none">
<asp:UpdatePanel runat="server" ID="UpdatePanel1">
<ContentTemplate>
<!-- popup content -->
</ContentTemplate>
</asp:UpdatePanel>
</asp:Panel>
<ajax:ModalPopupExtender runat="server" ID="PopupExtender" PopupControlID="PopupPanel"
TargetControlID="PopupButton" />
<asp:Button runat="server" ID="PopupButton" Text="Popup" />
The key to doing this is going to be using AJAX of some flavor -- Microsoft.Ajax or jQuery Ajax. If the UpdatePanel is not working, then I'd suggest using jQuery to submit back to the server using AJAX. This would involve creating a WebMethod to accept the AJAX post on the server side and instrumenting the client-side with jQuery to send the request/receive the response. Without seeing your HTML it's a little hard to be very specific.
Basic idea:
$(function() {
$('#modalSubmitButton').click( function() {
$.ajax({
url: 'path-to-your-web-method',
dataType: 'json', // or html, xml, ...
data: function() {
var values = {};
values['field1'] = $('#field1ID').val();
...
values['field4'] = $('#field4ID').val();
return values;
},
success: function(data,status) {
... update page based on returned information...
}
... error handling, etc. ...
});
return false; // stop any default action from the button clicked
});
});
I am not sure if this would work, but try to put whatever inside the modalpopup in a UpdatePanel
Please if this works don't hate me after you release, I hate updatepanels too
A kind of ugly option is to force a postback when showing the modal popup in the first place and setting a ViewState["ModelPopupOn"] = true; and then check that on page load and finally postback again and set it to false/remove it from viewstate when closing the popup.
(these kind of issues are why I hate the ajax toolkit)
I was experimenting with the modalpopupextender, and find a ugly solution.
If the modal panel has a button that makes the postback to happen
<asp:Panel runat="server" ID="PopupPanel" Height="650" Width="900" Style="display: none">
<asp:Button ID="OkButton" runat="server" Text="OK" OnClick="OkBtn_Click" />
</asp:Panel>
If the OkBtn_Click in the code-behind has a call to:
System.Web.HttpContext.Current.Response.Write("<script></script>");
Then the modalpopupextender is not closed.
This happened too to this guy:
http://forums.asp.net/t/1591860.aspx
Related
I have the below code which I am using to open a aspx page inside a modal popup but the issue is as soon as I load the host page of the modal popup it is redirecting to the one which is inside the iFrame.
<cc1:ModalPopupExtender ID="mp1" runat="server" PopupControlID="Panl1" TargetControlID="Button1"
CancelControlID="Button2" BackgroundCssClass="Background">
</cc1:ModalPopupExtender>
<asp:Panel ID="Panl1" runat="server" CssClass="Popup" align="center" Style="display: none">
<iframe style="width: 350px; height: 300px;" id="irm1" src="PayrollScope.aspx?id=49437" runat="server"></iframe>
<br />
<asp:Button ID="Button2" runat="server" Text="Close" />
</asp:Panel>
So the sequence is
MainPage.aspx -> Click PopUp -> Load PayrollScope.aspx inside the modal
But as soon as I hit the MainPage.aspx it is redirecting to PayrollScope.aspx. I tried to use jQuery modal popup also but the same issue is happening. Can someone please tell me why it's redirecting.
Thanks
If you use jQuery dialog to load that other page?
Well, it will display, but THEN if any code in the page has a post back, then yes, it will re-direct to that page.(jQuery dialog simply pulls the whole other page right into that div and "merges" it into your current page's dom. So, you can display the page, and no re-direct will occur. However, any server side button event code (button press, or even say a after update event of editing a text box (on changed) will cause a post back. And any post-back WILL thus cause the page to re-direct (after all any code behind event does send the WHOLE page back and the URL to IIS. So, it much depends on if you JUST displaying that page, or if you want/need/have user interaction on the 2nd page loaded as a dialog.
So, dump the ajax popup and controls reverence to the id of the popup. (don't try jQuery an the ajaxtool kit to "both" try and pop up a control/div - they tend to not play nice with each other.
I do suggest using jQuery.
This would work (but with above post back issues in mind).
<body>
<form id="form1" runat="server">
<br />
<asp:Button ID="Button1" runat="server" Text="Show page as dialog" OnClientClick="showpage1();return false"/>
<div id="poppage" runat="server" style="display:none">
</div>
<link href="//ajax.googleapis.com/ajax/libs/jqueryui/1.11.4/themes/smoothness/jquery-ui.min.css" rel="stylesheet" />
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<script src="//ajax.googleapis.com/ajax/libs/jqueryui/1.11.4/jquery-ui.min.js"></script>
<script>
function showpage1() {
var mydiv = $('#poppage');
mydiv.dialog({
autoOpen: false, modal: true, title: 'My cool other page', width: '50%',
position: { my: 'top', at: 'top+150' }
});
mydiv.load('MyOtherPage.aspx');
// Open the dialog
mydiv.dialog('open');
}
So, above will LOAD the other page (into that div), thus pop up the 2nd page when you click on the above button. (and note the return=false). If you have any postback on the page, then everything will quite much blow out the dialog. (and this also means the 2nd page we display (load) as per above.
However, if you need interaction on that 2nd page? (have to click on buttons etc.).
Then the idea of a iframe is a VERY good idea.
So, you have same as before, but we now don't "load" the page using jQuery.ui, but JUST display (and thus pop up) the div with a iframe you placed inside.
So,the div becomes this:
<div id="poppage" runat="server" style="display:none">
<iframe src="MyOtherPage.aspx" class="auto-style1"></iframe>
</div>
and the js code becomes this:
function showpage1() {
var mydiv = $('#poppage');
mydiv.dialog({
autoOpen: false, modal: true, title: 'My cool other page', width: '50%',
position: { my: 'top', at: 'top+150' }
});
// Open the dialog
mydiv.dialog('open');
}
So, now the above will just display that other page in the div, and since it is a iFrame, then you can interact - and post backs in that iframe should work just fine.
So, remove the ajax panel stuff - give jQuery.ui a try. I used the ajaxtool kit stuff, but for displaying another whole page in a dialog, then i found jQuery.ui seems to work a lot better
I have one asp button I want avoid pageload on button click
Plz someone help
Even JavaScript method will be ok for me
The framework fundamentally does not work that way. If you stay true to the framework, you can wrap your button in an update panel. That will remove the visible postback, but that will still fire the postback and perform the page load and click event.
In essence the update panel will dump your entire page into memory, then reload only the differences, simulating an ajax request.
The link submitted only allows the button to perform a JavaScript function, which would still need to Ajax to the backend.
<asp:UpdatePanel ID="upSample" runat="server" ...>
<ContentTemplate>
<asp:Button id="btnSample" runat="server" ... />
</ContentTemplate>
</asp:UpdatePanel>
Otherwise you should not use a server side event at all, simply do traditional html <input type="button" click="btnSample_Click()" /> that is actually doing Ajax directly to the server side.
I am using ASP.NET for a web page in order to make some server calls that involve looking up user organization information. Based on that information, we need to either hide or display a div. In the header I have a C# function that definitely runs. I have tried the following lines to hide the div.
divID.Style.Add("display","none");
and
divID.Visible = false;
In the body, I am currently using an asp:Panel that runs at server and contains the id "divID". No matter what I do, I can't get the div to hide (without manually putting the styling in). I tried putting the scripts before and after the body, and it didn't make a difference. Any suggestions on the best way to do this would be appreciated.
EDIT:
Here is the C# initiating code.
<script runat="server" language="C#">
void getUserInfo(Object sender, EventArgs ev){
The rest of the C# code is irrelevant, but the relevant line shown above is definitely being run.
The HTML portion looks something like this.
<asp:Panel runat="server" id="divID" style="width:200px; height:130px; ">
<div style="text-align:center">Test Data</div>
</asp:Panel>
C# code is always compiled and run from the server-side, and so cannot impact the state of a page once rendered unless you use postbacks or callbacks. If you want to change the visible state of a control on the client-side, you will need to use Javascript on the client side (possibly triggered by a button click) to show and hide the control.
As an example, check out the solution at the link below.
https://forums.asp.net/t/1603211.aspx?Show+hide+div+on+button+click+without+postback
<script type="text/javascript">
function ToggleDiv(Flag) {
if (Flag == "first") {
document.getElementById('dvFirstDiv').style.display = 'block';
document.getElementById('dvSecondDiv').style.display = 'none';
}
else {
document.getElementById('dvFirstDiv').style.display = 'none';
document.getElementById('dvSecondDiv').style.display = 'block';
}
}
</script>
<asp:Button ID="btn" runat="server" Text="Show First Div"
OnClientClick="ToggleDiv('first');return false;" />
<asp:Button ID="Button1" runat="server" Text="Show Second Div"
OnClientClick="ToggleDiv('second');return false;" />
<br />
<div id="dvFirstDiv" style="display: none;">
First Div
</div>
<div id="dvSecondDiv" style="display: none;">
Second Div
</div>
In the header I have a C# function that definitely runs.
If you're talking about the HTML page header - no, it definitely not running. C# code is executed only server side.
Based on your post, I'm assuming we're talking WebForms here and yo have a script block in your aspx file. While this is fine, I recommend placing the server-side code into a code behind file.
So all you need to do is to add a handler for the PreRender phase of the page life cycle and place your logic for showing/hiding the div in there.
public void Page_Prerender(object sender, EventArgs e)
{
divID.Visible = false;
' OR
'divID.Style.Add("display","none");
}
Note that setting the Visible property of a WebForms control excludes the control from rendering to the page, whilst setting display: none renders it as HTML but it isn't displayed on the page.
Try in backcode: divID.Controls.clear();
This worked for me.
I have an asp wizard on my page with three steps.
<asp:Wizard ID="wizardBestellen" runat="server" ActiveStepIndex="0" DisplaySideBar="False" onfinishbuttonclick="wizard_NextButtonClick" onnextbuttonclick="wizard_NextButtonClick" onpreviousbuttonclick="wizard_PreviousButtonClick">
<StartNavigationTemplate></StartNavigationTemplate>
<StepNavigationTemplate></StepNavigationTemplate>
<FinishNavigationTemplate></FinishNavigationTemplate>
<WizardSteps>
<asp:WizardStep runat="server" ID="step1" StepType="Start">
<uc1:control ID="uc1" runat="server" />
</asp:WizardStep>
<asp:WizardStep runat="server"ID="step2" StepType="Step">
<uc2:control ID="uc2" runat="server" />
</asp:WizardStep>
<asp:WizardStep ID="step3" runat="server" StepType="Finish">
<uc3:control ID="uc3" runat="server" />
</asp:WizardStep>
</WizardSteps>
</asp:Wizard>
Now every control has a next and a previous button which after the click validates your data and sends you to the next step. The buttons all look like:
<asp:LinkButton ID="bntPrevious" runat="server" CommandName="MovePrevious" CssClass="buttonOrange" CausesValidation="false"><span>Previous</span></asp:LinkButton>
<asp:LinkButton ID="btnNext" runat="server" CommandName="MoveNext" CssClass="buttonOrange" CausesValidation="true"><span>Next</span></asp:LinkButton>
So far it all works perfectly..
Now i wanted to disable the buttons after clicking on it and show a div with a loader image. So i created a div named divLoader and a javascript function which hides the div the buttons are in and shows the div with the loader.
function ToggleDiv(divButton, divLabel)
{
if (divButton.style.display == 'block')
{
divButton.style.display = 'none';
divLabel.style.display = 'block';
}
else
{
divButton.style.display = 'block';
divLabel.style.display = 'none';
}
}
But i can't get this to work. The ToggleDiv function works great in another situation, so thats not the problem.
I've tried calling the function from the OnClick attribute in the linkbutton but this gave me an error. I tried the OnClientClick, but this didn't work and i also tried setting the onclick attribute in the code behind, this also was a dead end.
Can anybody explain to me what i am doing wrong or is there another way to prevent users clicking the button twice?
Sounds like you're not getting the binding to work.
The first thing I would do is check the emitted control IDs by doing a view-source. Some implementation of the .NET framework add extra fluff to these control IDs, so can't guarantee that it will be the same as appears on the form.
Next, I would try some JavaScript late binding. If you have a JavaScript file, put it there. If not create one or add a JavaScript block to the foot of your form (create a new file for preference).
All this would be much easier with a JAvaScript lbrary such as jQuery, but for the moment lets assume you don't have one.
Add a window onload event handler
window.onload = function(){
//code to go here
}
Now add the click binding for your button:
window.onload = function(){
document.getElementById("***YOUR BUTTON ID***").onclick = function(){
ToggleDiv(this, document.getElementById("***YOUR LABEL ID***"));
}
}
I said this would be a little easer with jQuery, well, this is the equivalent implementation:
$(document).ready(function(){
$("#***YOUR BUTTON ID***").click(function(){
$(this).toggle();
$("#***YOUR LABEL ID***")).toggle();
});
});
The above sample removes the need for your ToggleDiv function entirely.
I have two asp.net buttons inside a template (Expand and Collapse)
I want to implement a simple client side javascript function to hide the expand button after press it and show the collapse button and vice versa.
<asp:Button ID="btnExpand" runat="server" CommandName="Expand"
CommandArgument='<%# Container.DataElement("Id")%>' Text="+" />
<asp:Button ID="btnCollapse" runat="server" CommandName="Collapse"
CommandArgument='<%# Container.DataElement("Id")%>' Text="-" />
I tried OnClientClick event but I didn't know how to get the sender button and the second button from javascipt because they're in a template and their IDs will be generated.
I tried also to change their visibility from the code behind in the server (by Visible property) but the problems is the event handler will be fired after the postback and the changes will not be applied in the client.
Any help !!
sorry if the question is silly, I'm new in the web development.
Thanks in advance.
Use ClientID like:
<!-- Supposing you have the following button control -->
<asp:button id="myButton" runat="server" />
<script type="text/javascript">
var theID = '<%= myButton.ClientID %>';
// Now do whatever you like with it.
</script>
Be careful where you place that code. You need to make sure that the html client renderer has finished creating that item.
In the function where you are implementing the hide and show template, put $("#buttonID").hide();.