how stop postback on any button click. My page is reloading as soon as i click on reset button on the registration page, i want to reset the form without reloading the page itself.
You have two possibilities:
Simply set the attribute AutoPostBack="false" on your button or whatever control.
As an alternative you could also add the following javascript to the click event of the button :
onclick="return false"
This prevents the button from submitting.
Try following:
<asp:button runat="server".... OnClientClick="return false;" />
First you have to know about Sever Control and normal HTML control.
If you used Server Button Control then your Page reload on each click.
If you wan to stop it then you have to use AutoPostBack="false", using this your server side method calling is stop.
Otherwise use Normal HTML Button Control and use JavaScript to reset your form.
Related
Here is the thing:
I have a Master Page, and a couple of other Web Forms. All of them invoke User Controls, and inside the User Controls, there is an Update Panel.
Now that I add a button in the Master Page (all the pages will need that button, that's why it is in the Master Page), I need that button to show a Popup. That's ok.
The problem is that when I click the button, the page rendered again. So I put the button inside an Update Panel and set it as an Async Trigger for the Update Panel.
(imagine something like that:
Master page{
update panel {
button
}
content place holder
}
)
Now the page does not render again, but still launch the Page Load, and that is a problem.
If a page takes 5 seconds to show, because it is loading the content, the button in the master page will take 5 seconds too, because it will load all again.
Does someone know something to fix that?
I assume it's an asp.net standard button like
<asp:Button ID="Button1" runat="server" Text="Button" />
So on click of this button it fires a postback event. But the button needs to show a popup only and if no server code processing is required, better to use
<input type="button" id="Button1" value="Button"/>
Remove UpdatePanel.
Currently I have a site that loads everything on initial load (when it's not a postback). Then it proceeds to load more data that should be fine to load regardless if it's postback or not. I thought everytime the page is refreshed or the button is pressed there is a postback. What I thought that if the user doesn't go to another page, any action he takes will be a postback.
However I'm getting very inconsistent errors when the site is actually on a server and was curious if perhaps, when clicking a button after a bit of inactivity, will the server possibly forget about the previous activity and treat the action as the person hitting the site for the first time again?
Below is how the button is defined....
<asp:Button CssClass="btn btn-default controls" ID="btnAddAdditionalCom" runat="server" Text="Add Comment" OnClick="btnAddAdditionalCom_Click"/>
Any asp:button click will cause a postback to the server because asp is a server side language so it has to talk to the server to execute the button click. If you want to do button clicks without talking to the server use something like javascript
You cant modify it.
Because this is a essential concepts in asp.net.
Even you cant change the value of IsPostback Property (It has no setter).
If you want to treat Postback as page load then u forgot the need of IsPostback
I have a website that uses the AJAX TabContainer and has several tab panels. Each tab panel consists of a customer user control with many controls on it. I need to be able to set the active tab whenever server-side button click event is executed. How would I go about accessing the TabContainer from the custom controls C# code behind?
My markup is structured like this:
<cc1:TabContainer ID="TabRoot" runat="server" Width="100%" CssClass="ajax__tab_yuitabview-theme" onActiveTabChanged="TabRoot_ActiveTabChanged"
OnClientActiveTabChanged="SetIndex" ActiveTabIndex="0" AutoPostBack="True">
<cc1:TabPanel ID="TabPatientRoot" runat="server" HeaderText="Patient">
<ContentTemplate>
<custom:Patient ID="PatientInfo" runat="server" Visible="False"></custom:Patient>
</ContentTemplate>
</cc1:TabPanel>
</cc1:TabContainer>
It is necessary that the server side codes executes a SaveData function before the tab panel is changed because whenever the active tab changes it loads the information for the newly selected tab panel, thus losing any information that wasn't saved on the previous tab panel.
How can I accomplish executing the server side SaveData function, and then have access to TabRoot to change the active tab? Currently I was using a javascript function (in the OnClientClick for the save button) to set the active tab but it is being executed before the server-side SaveData function. This seems to be a problem for users in IE9, only.
try like this and refer this examples Ajax Control toolkit
TabRoot.ActiveTabIndex = 0; // set your active tab index to display.
Try setting ActiveIndex of tab inside your button postback event.
I need some jquery code in my application I have a button on the page and I want to handle it by jquery when the user click on it to show a confirmation dialog for example Are you sure? yes|no buttons but this is an asp.net button inside the updatepanel and in the other side I have some server side code to delete a record from database but my question is how I can handle both of them? server side and jquery inorder to when "yes" button clicked it runs server side and delete recorde from database and if the button is no it stop running ?
you need to use confirm javascript function
<asp:button id="fooBtn" runat="server" OnClientClick="return confirm("Are you sure?") />
Here is a link to confirm function.
I have a ModalPopupExtender inside an UpdatePanel which opens an input form. The problem is when I click the "Edit" button (which is also inside the UpdatePanel) I want to fill the form with existing values using server side code. But it OnClick method of the button doesn't seem to work.
My question is: How can I make the serverside code run first, than show the edit form?
You need to show the ModalPopupExtender from server side.
First, link the ModalPopupExtender's TargetControlID to a dummy hiddenfield or a button with style="display:none" instead of the "Edit" button. I know it's sound stupid, but it's a know workaround.
Then make sure the asp.net the "Edit" button is set as a asyncpostbacktrigger if children as trigger is set to false.
Also set CausesValidation="false" to avoid the postback to be blocked by unrelated validators on the page.
Finally, At the end of "Edit" button's click event, call ModalPopupExtender.Show() to display the pop up.