Adding OnClick Event To DropDownList Control?
May 31, 2010I need to add the OnClick event to asp:DropDownList control, due to the existing events don't satisfy my current needs.
View 1 RepliesI need to add the OnClick event to asp:DropDownList control, due to the existing events don't satisfy my current needs.
View 1 Repliesformatting for an on click event in a hyperlink control:
[Code]....
I get an error with the using the <% %> within the onclick.
I've just slapped together a new user control and I need to add a OnClick event to it so I can handle it via page code behind.
I've never had to do it before so if someone would be kind enough to shead some light that'd be fantastic.
I have a checkbox inside a repeater like below..I'm having trouble figuring out how I need to tie the onclick event to a javascript function..I know I need to use somthing like
butSubmit.Attributes.Add("onClick", "return confirmSubmit();") but Since my checkbox is inside a repeater and I'm using master pages. I'm not sure how I need to use the findcontrol to so I can call the Add method?
I need to add an onclick to the ChkAll checkbox
[Code]....
How do I setup a default setting so that if I do not set an OnClick (i.e the asp.net OnClick attribute) explicitly for an asp:LinkButton tag, it will not render an onclick(html attribute for javascript) attribute client side? By default, asp.net adds an onclick='doPostBack....' for the LinkButton.
Case for use:
There is a LinkButton tag on the page. For this page, if the user has one friend, I only want to run client side code if the button is clicked and would not for any reason want to make a post back. If the user has more than one friend I would want a click to trigger a postback.
Using any asp.net Ajaxtoolkit
Dynamically switching the control type (i.e. if friends == 1 use a asp:Hyperlink)
-I want to avoid this because it is not scalable. There might be many cases where I want an asp:Link tag to do a postback or to not do a postback depending on the user context or user attributes Using OnClientClick (I am using jQuery would like to avoid this)
well i have already created the rows and cells dynamically using asp.net table control ...but how to add an onclick event on that ...so that i could retrieve the corresponding cell when a particular row is clicked ...if it was a html control ,i could have used javascript but in this particular case m unable to find any solution..
View 2 RepliesI am trying to save the onclick statistics after the search results are clicked. this is how i have done in ASP.net using repeater control.
string domainName = String.Format("{0}/{1}", ConfigSettings.ReadConfigValue("DomainName"), loc.DomainName);
string statScript =
string.Format("UpdateDealStatistics('MerchantProfile', 'clicked'," + loc.LocationID + "," + merchantID + ",'" + x + "'," + UserID + ", 0," + "'Search Display','" + domainName + "')");
((HtmlAnchor)e.Item.FindControl("MerchantName")).Attributes.Add("onclick", statScript);
((Literal)e.Item.FindControl("litLocName")).Text = String.Format("{0}", loc.LocationName);
((Literal)e.Item.FindControl("litLocAdd1")).Text = loc.Address;
((Literal)e.Item.FindControl("litLocCity")).Text = loc.City;
((Literal)e.Item.FindControl("litLocState")).Text = loc.State;
aspx page:
<asp:Repeater ID="rptSearch" runat="server" OnItemDataBound="rptSearch_ItemDataBound"
OnItemCommand="rptSearch_ItemCommand">
<HeaderTemplate>
[code]...
I know this topic has been posted before but I'm stuck on it still.I've placed creating of dynamic control on Page_Load but the event isn't firing.On my asp page, i have <asp:PlaceHolder ID="test" runat="server/>On my code behind, I have private display method.
private void DisplayButton() {
LinkButton btn = new LinkButton();
btn.ID="unit_1";
[code]...
I have a simple form with a button. The button is server control.
in the OnClientclick event of the button control, I am actually doing some validations. If the validation fails, the onclick event should not be executed. How can I control this?
In the code below, PerformChecks() function gets fired first and alert message pops up fine. But immediately onclick event (which is handled on the server) gets triggered. if the check in PerformChecks fail, how can I suppress onclick event?
Code:
<asp:Button ID="ButtonRun" runat="server" Text="Go"
onclick="ButtonRun_Click" OnClientClick="PerformChecks();" Width="57px" />
function PerformChecks() {
var checkboxCollection = document.getElementById('<%=CheckBoxListInstruments.ClientID %>').getElementsByTagName('input');
[Code] ....
I understand I need to load my dynmaic control on every postback and preferrably in Page_Init(). But my dyanmic controls are loaded from a dropdownlist selectedindexchanged event handler. Now after any postback, my dynamic controls are gone. How would I force it to load on every postback ?
View 2 Replies I am using the following code to load user control on to ASPX Page, which under a Master Page:
[Code]....
The user control name is passed as a parameter on the URL.
Inside the user, there is a LinkButton. The link button has a simple server side code for OnClick event.
Everything is working fine on the production machine, but, on the Development machine, I can see incorrect behaviour. I have started making some development changes on the Development Machine since several months back, and it will be very difficult to find out what caused the problem.
When I click the LinkButton inside the user control, the user control is removed from the parent page, and the OnClick event of the LinkButton is not firing.
I did debug, and found out that after I click on the LinkButton inside the user control, then the Page Load events for the master page and the ASPX page are working fine, and the IsPostBack is set to true, but the OnClick event of the LinkButton is not firing.
I have a modalpopup extender attached to a button. That is to say the button is the targetcontrol id of the modalpopupsxtender. I would still like the onclick event of that button to work because only the onclient click event is working. How can i go about this.
View 1 RepliesI am extending the TextBox class to include CustomValidator along with the TextBox. I have created properties like CSSClass for ErrorMessage, CustomErrormessage for ErrorMessage on failure. But I am not sure how to get server side validation method in the form of tag. Example:
<asp:CustomValidator runat="server" id="custPrimeCheck"
ControlToValidate="txtPrimeNumber"
OnServerValidate="PrimeNumberCheck"
ErrorMessage="Invalid Prime Number" />
PrimeNumberCheck is the method name which is passed as parameter, same way I want to pass method in my custom TextBox for CustomValidator to run on server side.
what're the differences between onclick event and oncommand event?
View 2 RepliesIs it possible to use JavaScript passed by Ajax on the client-side? I am getting an "object expected" error from an onClick event from a HTML control that is passed with the JS. The controls and JS work when the page is rendered on the server.
View 4 RepliesHow can we add a drop down calendar to one of the cell of details view.
Actually i want to add three drop down list one for month , other for year and third one for days.
I have the following code in Page_Init (actually in a function called by Page_Init in response to a __doPostBack call)
System.Web.UI.WebControls.DropDownList ddlGroup = new System.Web.UI.WebControls.DropDownList();
rowString = rowNumber.ToString();
I have one dropdownlist control which populates values to other controls. Means upon selecting item in dropdownlist, related data is populated in other controls. I have also assigned dropdownlist's autopostback to TRUE. Everything is working good as far as dropdown has more than one item.
Whenever there is only one item, selectedindexchanged event is not fired (obviously.....) and eventually the data is not populated to other controls.
How could I get rid of this scenario? I mean which event should I use to avoid this?
At this time, I have just added the first item as something like "---Select Item---" , so when end-user has to select different item and thus the selecteditemindexchanged is fired. no biggie... but just wondering if proper solution is available....
I have an existing GridView which contains the field "partner name". It is sortable by partner name.Now I need to change the Partner Name field and in some condition make it clickable and alert() something.
The existing code is:
<asp:GridView ID="gridViewAdjustments" runat="server" AutoGenerateColumns="false" AllowSorting="True" OnSorting="gridView_Sorting" OnRowDataBound="OnRowDataBoundAdjustments" EnableViewState="true">
<asp:BoundField DataField="PartnerName" HeaderText="Name" SortExpression="PartnerName"/> [code]...
enable me to access "lnk" by id and add to its attributes. However, I lose the Sort ability.
public void addComment(object sender, ImageClickEventArgs e)
View 4 RepliesMy situation is a little strange I guess, suggestion of engineering is acceptable.I have a DropDownList, on my "user" creation, called "city". When I'm creating the user I can create other city, but for this I have a button which redirect to other page.So, ok. I've created the new City and now I click on my DropDownList of cities and guess what?! The field is not reloaded.My first idea is every that I click on DropDownList, reload the data, but I can't find some OnClick action for Asp.Net DropDownList.
View 2 RepliesI am having a problem with dropdownlist auto post back set to true...
In my project I have to hide and display two other dropdown lists depends on selected index change of a main dropdown..
I set the auto postback to true and I am hiding and displaying the dropdowns on user selection...Everthing is working fine..
But I am having a very hard time when user types when the dropdown got focus..this is very annoying situation..if type one word its doing a postback and they are unable to type further...
is there any way to fire this onselectedindex change event on blur or on enter key press...is there a way of doing it with java script or jquery...
In one of the steps of a wizard control are 2 dropdownlist which data come from 2 distinct queries and cascade from the 1st one to the 2nd one. Where and how can code for that data binding and cascading be placed since it seems codebehind window for both of the dropdownlists cannot be found in VS property or event windows?
View 3 RepliesIn my View, there is a HTML button; I would like to execute a function from Controller when user clicks on that button. I need to pass a value from HTML textbox as parameters. My function will do some calculating and return the result back to the same View.
Let's make a simple example.
I would like to input "1" in my textbox, press the button, pass "1" to controller, and in the function, I will do something like 1+1. At the end, I will pass the result, which is "2" back to the View.
I am programming in VB.NET.I am trying to make an onClick event for a div tag. How can I make this in the code behind?
View 2 Replies