Web Forms :: Access Control Within A Usercontrol From Javascript?
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.
I have a scenario where I have a tabstrip on the page and each tabstrip has a usercontrol. On page load i want to display the first tab and based on certain properties on that tab i want to enable or disable other tabs. Can somebody guide me on how to do this. I am unable to access the tabstrip control on the parent page from within the usercontrol.
How do I access the Control (dropdownlist) in current Page from the UserControl? In the UserControl:
String test = ((DropDownList)this.Parent.FindControl("drpdwnlstMainRegion")).SelectedValue; or String test = ((DropDownList)this.Page.FindControl("drpdwnlstMainRegion")).SelectedValue;
It return null on ((DropDownList)this.Parent.FindControl("drpdwnlstMainRegion")) for some reason? BTW ... I am using ASP.NET C# 3.5.
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:
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?
i have 2 textbox controls inside a usercontrol TextBoxUC.ascx i have a page.aspx that contains the usercontrol. how can i get a reference to each textbox using javascript from page.aspx?
I have got a literal control on page (with some data on it). i want to access it in javascript and want to put some text on it. how can i access literal control in javascript. (i am using asp.net)
My code in javascript (but not working):
lths = document.getElementById("<%= lblhs.ClientID %>"); lths.innerHTML = 'this is text line"
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?
i have 2 ascx user controls (both with VB code behind) placed in a contentplaceholder inside an updatepanel within a aspx page based on a masterpage... in the first user control i have a gridview and in the second i want to loop through the rows and get values from the first user control's gridview I would like to know how I can access the gridview of the first usercontrol from the second usercontrol please.
I have a UserControl that is on a masterpage... I have created the following property for the userControl in the codebehind:
[Code]....
Now I need to access this control and change that property from an aspx page that uses the masterpage with the control. I'm stuck I cannot seem to find the controls property. I can find the control and make it visible or not but I cannot find the property to modify control...
I have a website in php which is using 4 frames(top, left, middle and right). The middle frame contains the web user control coded in asp.net. Now, in the right frame( which is coded in php ) some javascript contains the id of the items selected in right frame. I need to get those ids to the middle frame on asp.net user control.
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".
I'm able to change the mask value and mask type for ajax MaskedEditExtender using java script in run time but when I try to change the ValidationExpression and TooltipMessage for ajax MaskedEditValidator.
simply my code will call ChangeMask() function to do these changes when the check box change.
when you run my code the mask will work ok but not for MaskedEditValidator.
I've a JavaScript function in my page through which i make some elements in the page as 'JQuery UI droppable'.
function setDroppableTargets() { $(.cssDockZone).droppable(); }
But the elements with the class cssDockZone is created dynamically upon user interaction. So in the code behind i create the control first and finally at the end i register a scriptblock which calls setDroppableTargets().
But the javascript function is invoked before the controls are created eventhough i register the script at the end (after creating the controls) and i cross checked it by getting the elements with class name '.cssDockZone' and i getting it as 0.
I have some ajax fucntions on my default.aspx that I use for saving data to my db. I have the form on my web control. When I try calling the function from my button which resides on the web control. I get an error.
I need to call that function from my registerform.ascx. How do I do that from within the registerform code behind?
I have a usercontrol on the content page. I'm trying to access this usercontrol's hiddenfield.
I was able to access it before applying the master Page. But once I changed the page to a content page , the value in the hiddenfield is showing empty.
alert(document.getElementById('<%=hidLat.clientID%>').value) is showing the value.
I have a property PickupHidLat defined on the ascx page and I'm using this property to access hidLat value on the content page.
I wanna write a usercontrol to handle different access levels on pages.
Below is the html i wanna achieve.
[Code]....
This is my code at this point:
[ParseChildren(false), PersistChildren(true)] public partial class RequiredUserType : System.Web.UI.UserControl { public string UserTypes { get; set; }
[Code].....
My problem is that the <Content> and <AlternativeContent> doesn't get rendered as Panels and on the Client side its rendered as the initial tags(<Conten>) and not a div or whatever a asp:Panel normally gets converted to.
I struggled with some javascript issues, and discovered that the problem seemes to come from a failed ajax control access. Here's my problem: I have a master page and a content page.In my content page, I have an accordion with 2 panes. 1rst pane: a textbox and a validation button; I want the button to fire javascript function without reloading page (using "return false;");
In my master page, I put my ToolkitScriptManager. In my content page, I put my script containing the functions.
The problem is that it seems like I can't access the accordion control in my js functions, whereas I can access my textbox value. ere is my source:
[Code]....
All I want is, that when clicking on button OR changing to 2nd pane, it checks the textbox (function check()), if fails, then doesn't open 2nd pane, stays on 1rst, if not, then closes 1rst and changes to 2nd pane.
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.
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.
I have several usercontrols which are loaded based on business logic.However, all of them have webcontrols whose selected/entered value needs to be accessible in parent page on an event.Since there can be any combination of UserControls, I do not want to load all the UserControls in the Parent Page, since they are heavy.
I would like to load only those controls which are supposed to appear on the page, yet access the value from the usercontrol which caused the postback. (I would rather not access using Request.Form) (ViewState is open, but unsuccessful to store value in parent page's viewstate in onClick)Here is a sample scenario
Page: Home
Dynamically Loads: UserControls1
UserControls has TextBox tb and Button btn, causing onClick
When btn is clicked, I want to get value of tb in parent page on PostBack, Page creates UserControl2