Web Forms :: Register JavaScript In UserControl
Mar 1, 2011
I have a UserControl, ASPX page, a Class file and a JS file. In Class file, I have a method for building and registering textbox controls:
ScriptManager.RegisterClientScriptBlock(this,
typeof(Page),
"onfocus", jsText.ToString(),
true);
jsText is nothing but Name and Value pair strings. Example : "KEY1:txtName, KEY2:txtDOB" In UserControl, I am calling the above Class method to pass all the textboxes and calling the JS file to validate the registered controls. Then, I am calling that Usercontrol in ASPX page. Here I am unable to validate the controls as it is saying "KEY is undefined".
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Similar Messages:
Jan 27, 2011
i have a javascript color picker i can get it working fine in a aspx page, but i am unable to get it working in a usercontrol inside a update panel. I have tried using the following but i still cannot get it to workm the js file can be viewed at [URL]
ScriptManager.RegisterClientScriptInclude(this, this.GetType(), "colorpicker_1", "/_template/js/colorpicker/jscolor.js");
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Mar 15, 2011
I have some usercontrol which gets loaded dynamicaly. I know how to add these usercontrols dynamically. The problem is, which usercontrol are to be added is decided only at runtime. So I cannot use <%@ register %> or <%@ Reference %> on the '.aspx' page. How to access the usercontrols without using these directives?
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Dec 11, 2010
I want to register an UserControl in another UserControl but i have some errors like :
Control '4_txtCount' of type 'NumbericTextBox' must be placed inside a form tag with runat=server.
Description: An unhandled exception occurred during the execution of the current web request. review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Web.HttpException: Control '4_txtCount' of type 'NumbericTextBox' must be placed inside a form tag with runat=server And when i add a server side from tag in my UserControl, i never get the error message.
How can i register and use an UserControl in another UserControl without adding server side form tag in UserControl?
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Mar 22, 2010
I have a page that dynamically inserts user controls into a placeholder depending on values in a database table. The user controls consist of a label and one control (dropdownlist, radiobuttonlist, or checkbox). The controls will also have the AutoPostBack property set programmitcally depending on values in the database. My update panel is on the main page, not in the user control. I have tried the ScriptManager.RegisterPostBackControl method to register the UserControl on page load, but the page still does a post back. I think I need to register the control that is inside the UserControl, but I have no idea how to access it from the main page_load event.
This thread is the closest to what I am trying to do, but since I am inserting the user controls programmatically, I need the triggers to be registered programmatically as well. Also, I need to register
them as PostBackTrigger instead of AsyncPostBackTrigger because I need to do a full page reload because the user controls are inserted dynamically.
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Mar 17, 2010
I have a treeview in a user control. I need to run a javascript function with every asynch postback to scroll the div it's in to the right position. I've got it working, but I think there has to be a "cleaner" way to do it. In the Page_Load function of the control, I have the following code. Is there a better way to do it?
ScriptManager.RegisterStartupScript(this.UpdatePanel1, this.GetType(), "key" + DateTime.Now.Ticks, "RestorePosition();", true);
For the benefit of anyone searching for this answer, here is what I finally did that worked. At the top of the ascx page, I have the following code:
<script type="text/javascript">
function pageLoad(sender, args) {
Sys.WebForms.PageRequestManager.getInstance().add_beginRequest(SavePosition);
Sys.WebForms.PageRequestManager.getInstance().add_endRequest(RestorePosition);
}
function SavePosition(sender, args) {
document.getElementById('hdnScrollSaver').value = document.getElementById('reportTreeViewdiv').scrollTop;
}
function RestorePosition(sender, args) {
document.getElementById('reportTreeViewdiv').scrollTop = document.getElementById('hdnScrollSaver').value;
}
</script>
And then I wrapped the treeview in a div tag as follows:
<div class="reportTreeView" id="reportTreeViewdiv">
<asp:TreeView ID="TreeView1" runat="server" OnTreeNodePopulate="TreeView1_TreeNodePopulate"
OnSelectedNodeChanged="TreeView1_SelectedNodeChanged" PathSeparator="|" SkinID="ReportTreeView" />
</div>
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Jul 28, 2010
In Asp.net how many ways we have to add javascript programmatically or register when we use ajax or normal page postback in 3.5 and 4.0 versions of asp.net
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Jul 1, 2010
I have a Asp.Net control inside a updatepanel thet is inside a modal popup. I wont to register write javascript code in client from the control code.
these is my code:
Dim output As String = .. javascript code
Page.ClientScript.RegisterClientScriptBlock(Me.GetType(), "frmulaMatrix", output, True)
these is my second thinf but dont work
Page.RegisterClientScriptBlock("SCRIPTNAME", "<script language='javascript'>" + output+"</script>")
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Feb 10, 2011
I have an ASP.NET page with two instances of the same Web User Control (a simple WYSIWYG editor). On submit, the WUCs do a little JavaScript magic and then proceed with a normal postback.
The first instance seems to be working, but the second fails to post changes back to the server (it reverts to the original, and posts that). I believe the problem is that the JS only fires for the first WUC. I've traced that to the following code, from the generated client-side source:
function WebForm_OnSubmit() {
prepHtml('AddEditPopup1_ctlEditorQuestion_txtEdit','AddEditPopup1_ctlEditorQuestion_divEdit', 'AddEditPopup1_ctlEditorQuestion_divHT' );
//snip...
}
The problem seems to be that there should be two calls to prepHtml: one for the ctlEditorQuestion instance of the WUC, and one for the ctlEditorAnswer instance.
Instead, there's only the one for ctlEditorQuestion. Both controls are registering the OnSubmit event, but one of them overwrites the other.The prepHtml call is registered from the WUCs' C# code at runtime:
//Page_Load
_onSubmit = String.Format("prepHtml('{0}','{1}', '{2}' );",
txtEdit.ClientID, divEdit.ClientID, divHT.ClientID);
//OnPreRender
Page.ClientScript.RegisterOnSubmitStatement(this.GetType(), "get-html", _onSubmit);
I should point out that I didn't write this control myself, and I've never seen this kind of runtime registration of OnSubmit JS code before. Page.ClientScript.RegisterOnSubmitStatement is totally new to me. I need to register both prepHtml calls so they run sequentially. Is this possible? I'm open to alternatives to Page.ClientScript.RegisterOnSubmitStatement, so long as the code still gets fired on submit.
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Jan 21, 2011
I want to call javascript function from User Control using C#. For that i am trying to use
ScriptManager.RegisterStartupScript(this, typeof(string), "alertbox", "javascript:ShowPopup('Select a row to rate');", true);
but it is not working for me. This works fine on the page. how can i call javascript function at runtime using C#.
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Jul 7, 2010
How do i add my javascript file as an embeded resource to the page after the ajax javascript already on the page? NB want to do this part dynamically to have code wrapped up in usercontrol.
in aspx page: scriptmanager
Code: Assembly: WebResource("Functions.js", "text/javascript")
Code: onPreRender:
ScriptManager.RegisterClientScriptResource(Me.Page, Me.GetType().BaseType, "Functions.js")
This code successfully adds my javascript code to the page but not after the AJAX javascript and so not all of my functions work correctly.
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Dec 22, 2010
i designed an user control within that one html textbox input control is there. now i want to drag and drop this usercontrol into an aspx page, my doubts is how can i validate that user cotrol html input control has data or not using javascript? then im want to read that data from aspx code behind, how to do this?
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Aug 26, 2010
I have a simple form (textbox, submit button) which is wrapped in an update panel.
[Code]....
I type some text in the textbox, click submit, then the server creates a database record and returns an object, which has properties like ID, Name, URL, Blah, etc. These are the values that the script requires.
So if i were to call a web service from the client-code, in order to get the values that were just created, i would need to do some hacks (get last record modified that has the value of the textbox). Not ideal, and neither is two AJAX calls for one form post. (update panel postback, then web service call).
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Oct 25, 2010
I have a javascript embedded in my extended gridview control that reference the grid control. Example:
[Code]....
HTML code:
[Code]....
way to determine the gridview object in javascript. I want to make it generic so that if I use this gridview in any other control it should work instead of hardcoding the name.
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Nov 19, 2010
I need to access controls of aspx page and usercontrol page through the external .js file. I created a global varaible in the aspx page
<script language="javascript" type="text/javascript">
var loadPanelID = "<%=ajaxLoadingPanel.ClientID%>";
</script>
Now I pass this value in the onclick event of button click (Let the funtion name be Fun(loadPanelID) ) . The controls is recognised in the .js file. Everything is fine till now. Now i need to call the same javascript method Fun() from the button click of usercontrol.
<script language="javascript" type="text/javascript">
var loadPanelID = "<%=ajaxLoadingPanel1.ClientID%>";
</script>
I have ajaxLoadingPanel1 in the usercontrol and I have defined global variable as in the first one in ascx and passed that value to Fun() method. But this time it gives error called "loadpanelID" is undefined.
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Mar 14, 2011
I have an asp.net page that has menu which loads user control dynamically when the menu item is clicked.Now in the user control i have some buttons calling javascript on clientClick.When i click this button,it throws javascript error
Microsoft JScript runtime error: '(function name)' is undefined
Here is the code snippet:
function CheckUpload() {
var flag = validatePage();
var Checktext = $("#HyperLinkUploadFile").val();
if (Checktext != '' && flag)
flag = true;
return flag;
}
<asp:LinkButton ID="btnNotifyOA" runat="server" Text="Recommend Award and Notify OA & AO"
ValidationGroup="Notify" OnClick="btnNotifyOA_Click" OnClientClick="return CheckUpload();" />
The above linkbutton and javascript is inside a usercontrol.
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Sep 29, 2010
how can i use multi javascript files with RegisterClientScriptInclude method in custom server controls. when i call two or more RegisterClientScriptInclude method, this method registers only one of the javascript files.
[Code]....
[Code]....
[Code]....
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Feb 11, 2011
have a wizard control in an aspx page which is enclosed in a update panel. Each step in the wizard control is a user control. In one of the user controls I am using syncFileUpload control, and I am calling a JavaScript function "UploadComplete" on the
"OnClientUploadComplete". But when I run the program I am getting a javascript error "UploadComplete" not found.In the main user page I have
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:Wizard ID="wzdDocAdmin" runat="server" ActiveStepIndex="0" BackColor="#F7F6F3" BorderColor="#CCCCCC" BorderStyle="Solid" BorderWidth="1px" Font-Names="Verdana" Font-Size="0.8em" Width="100%" DisplaySideBar="False"> <StepStyle BorderWidth="0px" ForeColor="#5D7B9D"
HorizontalAlign="Left" VerticalAlign="Top" />
[code]...
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Nov 11, 2010
I have a UserControl with two labels and a slider control on it. I have a javascript function that is called when the value of the slider changes, and it is supposed to update the text of the labels. The ascx code is:
asp Code:
<%@ Control Language="vb" AutoEventWireup="false" CodeBehind="AlignSlider.ascx.vb" Inherits="F1TimeTrials.Controls.AlignSlider" %><%@ Register assembly="Infragistics35.Web.v10.2, Version=10.2.20102.1011, Culture=neutral, PublicKeyToken=7dd5c3163f2cd0cb" namespace="Infragistics.Web.UI.EditorControls" tagprefix="ig" %> <script type="text/javascript" id="igClientScript"><!-- function sliderControl_ValueChanged(sender, eventArgs) { var leftLabel = document.getElementById('<%= Me.lblLeftValue.ClientID %>'); var rightLabel = document.getElementById('<%= Me.lblRightValue.ClientID %>'); var maxValue = sender.get_maxValueAsDouble(); var value = eventArgs.get_newValue(); leftLabel.innerHTML = value; rightLabel.innerHTML = maxValue - value; }// --></script> <asp:Table ID="table" runat="server"> <asp:TableRow runat="server"> <asp:TableCell runat="server"> <asp:Label runat="server" ID="lblLeftValue" Text="0" /> </asp:TableCell> <asp:TableCell runat="server"> <ig:WebSlider ID="sliderControl" runat="server" ValueType="Double" > <ClientEvents ValueChanged="sliderControl_ValueChanged" /> </ig:WebSlider> </asp:TableCell> <asp:TableCell runat="server"> <asp:Label runat="server" ID="lblRightValue" Text="100"/> </asp:TableCell> </asp:TableRow></asp:Table>
When I put this control on a page it works just fine. I drag the slider, the labels update with the new values. However, I actually need a large number of these controls on my page (around 10-20 I think), and this is where the problems start. When I change the slider on one of these UserControls, it changes the text of only the labels in the LAST instance of this UserControl on the page. It seems that the 'document.getElementById' function actually searches through the entire page rather than just the one UserControl. How can I fix this? How can I get the two label controls from this current UserControl instance, and not any other instance on the page?
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Jan 10, 2011
I have a main page with one update panel
Inside that I have registered usercontrol. within this user control I have written some javascript
This js does not get rendered when page is loaded/opened.
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Nov 24, 2010
I have created a User Control with 4 check boxes(server control).I want to allow to check only one checkbox out of four.
The user control is loaded on page dynamically.I page may have multiple same UserConrol.
How do I do it using Jquey or Javascript?
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Jan 6, 2011
I'm working on an ASP.NET app.I'm using a UserControl for a year calendar.This UserControl has 12 asp.net calendar controls (for the 12 months of a year)
I'm trying to build a jscript function that can access to one (or more) of the 12 month calendar, but I can't access them.
example:
"<asp:Calendar ID="CalendarJanuary" runat="server"></asp:Calendar>"
here's my function
function SetCalendar(controlId) {
document.getElementById(controlId+'_CalendarJanuary').VisibleDate = somedate
}
but this is allways throwing an error:'Microsoft JScript runtime error: 'document.getElementById(...)' is null or not an object'
it seems is not finding the calendar and I'm sure i'm passing the right controlID
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Mar 16, 2011
I have a web form that contains a usercontrol and I would like to be able to access the html elements within the usercontrol from the form page using javascript.
I tried the following:
document.getElementById('<%= usercontrol.clientid %>')
but this returned null.
I had a look around with firebug and found that the tags in the usercontrol render with clientids like usercontrolid_myelement. I'm guessing that something like this might work:
document.getElementById('<%= usercontrol.clientid %>'+'_myelement')
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Dec 20, 2010
I have one user control in page, and inside this have UC2 (modal pop up). And I try to achieve this: When I close UC2(modal) i try to update some fields on UC1. And this works fine for one(I have UC2(modal) and on button Save OnClientClick="SaveInfoCI()"), and in UC1 on top of page
function SaveInfoCI() {
document.getElementById("<%=frmData.FindControl("txtImplementingCI").ClientID%>").value
= document.getElementById("<%=UC2.GetClientID%>").value; }
but because i reuse this control in another place i want to update another field. Basically now i Have 3 JS function that update 3 fields. And I try when I click save in UC2(modal) I must execute one of this 3 javascript f, to update right field. I don't want to have 3 same UC with only difference in OnClientClick="SaveInfoCI().
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Oct 20, 2010
I've searched high and low for some resolution to this problem. Hopefully someone here can explain!!I create a usercontrol that uses .NET web controls, but I want to create a smoother user experience by avoiding full postbacks, so I write some JQUERY to capture click events on the client and in this way do the processing without going back to the server.
$("#tblLedgerEntries :checkbox").click(function () {
var value1 = $(this).closest("tr").find("td.invoiceAmount").html();
var value2 = $('#<%=hdnTotalToPay.ClientID%>').html();
CalculateTotalPayable(value1, value2, $(this).attr("checked"));
[code]...
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