Web Forms :: How To Apply The Stylesheet Of A User Control To The Page Its Getting Called From Parent Page
Jan 31, 2011
I have created one user control for changing the theme of the page where i have several buttons and on click of each button i am applying the theme of clicked buttons color and for that i have created several css files like red.css, blue.css , green.css etc.
now i want to apply this theme to the page but i am not able to do that from the user control as because i am not getting the stylesheet property in the page and thus i am not able to work further.
can anyone tell me how can i apply the theming from user control to the page its being called.?
i would like to ask about how can i open user control page when i click a button on parent page, also, can i call parent's method from user control page and then refresh parent page?
there is a sample code for creating a custom textbox control with built in validation posted here Building ASP.NET TextBox with Integrated Validation And Switchable Input Modes. Inside the code there is a call to Controls.Add(validator) which adds the asp.net validator control to the textbox. when the textbox is used on the page, the validator is rendered to the page although the validator is added to the textbox and not to the page!
Basically, I have a user control with a set of input controls such as textboxes and radio buttons. It also has a button along with these controls. What I want is that when the user clicks this particular button, the data entered in the input fields must get updated into a grid in the parent page.
how to call a function of user control from the parent page?
I have a user control inside of default.aspx page, And I have a function in the code behind of user control. I need to call that function from a code behind of default.aspx
Is it possible to do this? Or do I need to make a server control for this functionality? I have it being able to be set in the Page_Init, but I'd like to make it as similar to actual controls as possible. Also, if it is possible to access via the Events section under Properties, that would be good and 2. I am trying to register the web user control as an AsyncPostbackTrigger for another UpdatePanel. With the previous question in mind, is it also possible to set this via the GUI, or does this need to be set programmatically as well?
I have an EDIT.ASPX page and on that page I have some labels and textboxes and a user control. I listed all the related codes you can have a clear picture - not all of the codes are given me a problem. ONLY ONE.
HELP ---> On the Uer control (SiteTemplate2.ascx) I have a DataList that is being populated by the database and that works fine. I have a CHECKBOX on the user control page each time the user check the CHECKBOX the user control content totally disappears from the EDIT.ASPX page. There is no error message -- I believe this is a post back error but I don't know how to fix it.
Goal: Each time the checkbox called (CHKBSideBar) is clicked on the user control page all of the page content should stay in place that include
EDIT.ASPX Page and the refeneced USER CONTROL. I should be implement a CheckedChanged Function without either of the pages lossing DATA. I need to be able to access post back event from the user control of the Edit.aspx page. When the user click a box on the user control page how do I keep the same Page_Load event on the edit page. I need to reference the Edit page from the user control.
Note: The edit page loads the user control (SiteTemplate2.ascx)SEE CODES BELOW
I know this is a lot and thank you in advanced for your help. I tried to include all the pages that are key players. I must user the user control bacuase the user can select different template so eliminating the user control is not an option.
I have a user control that has several data components
What I want to do is populate the data components based on the parent's page title where the user control is called.
The parent page title is the most logical unique name to each page and so that would be the name that I want to import
as the default value for the data components select parameter. Each page name is stored in my sql data table [Towns] as TownsName.
The general idea is that the control will populate with the towns data based on the page title of the parent page.
<SelectParameters> <asp:ControlParameter ControlID="DetailsView3" DefaultValue="PAGE TITLE NAME GOES HERE" Name="TownsName" PropertyName="SelectedValue" Type="String" /> </SelectParameters>
I am not sure how to code this correctly, but I am sure it would have to be called in the page load statement.
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load SetAttr(DetailsView3.DefaultValue = Parent.Page.Title())<-------THIS OFCOURSE DOES NOT WORK End Sub
I have spent a couple of days trying to work this one out and have failed to find a workable solution..
I have a user control with contact form and validators, when I add it (user control) to my parent page I get a strange behavior of all buttons within the parent page, Any button I press on the parent page fires the validators of the user control. How can I vallidate the form on my user control only when I press a specific button?
I have a user controlThe user selects some items from user control (check box list)User clicks update button on user control The new rows get updated on a gridview on calling page & user control is hidden
a)I have made the user control but I dont know how to return the results and bind them with gridview on my calling page.
b) Update: If I create the update button outside the user control and on my calling page and then on its button click event Isomehow access user control checkbox list selected items would that be a good approach ? And how to do this stuff ?
I have a hidden field on my default.aspx page. Within default.aspx page I have a user control which has a label on it. I need the label to display the value on the hidden field. How can I go about this?
I am using a user control that I created (just a .cs file not an .ascx file), that does some magic and depending on a value generated by the control, I need it to do something on the parent page that is 'hosting' the control. It needs to call a method under certain circumstances (method is on the parent control).the control is placed on the parent page like so:
I'm dynamically creating buttons etc on the control itself but when a button is clicked, let's say for example that there's a text box on the control and if the value of the textbox is "bob" it needs to call a method on the page that's housing the control...how can I accomplish this?
In my default.aspx page I have a PlaceHolder control within an UpdatePanel. In this placeholder control I will dynamically load a web user control, which is just a form with a submit button. On this user control, I have the form within an update panel and I have the "Submit" button's Click Event added to the triggers.
When I submit the form, the UpdatePanel on the web user control nor the update panel on the default.aspx page are capturing the post back, thus causing a full post back which refreshes my page.
how to capture this post so its rendered in Ajax and not a full post back?
I have a login control and at is nested 2 deep in a header control i.e Page --> Header Control --> Login Control. I cannot get a reference to the control on the page using FindControl. I want to be able to set the visible property of the control like
[code]....
I ended up using a recursive FindControl method to find the nested control.
but it is throwing as exception Object reference not set to an instance of an object.How can I access user control's gridview control from parent page?
protected void Page_Load(object sender, EventArgs e) { LoadMyControl(Parameters); //Do it every page load to preserve it's state } protected void LoadMyControl(string parameters) { plchld.Controls.Clear(); Control userControl = LoadControl("TheUserControl.ascx"); userControl.ID = "userControl1"; plchld.Controls.Add(userControl); }
Now inside this control, when a button is clicked I want to update ,let's say a Label on the hosting page. What is the best way to do it? Custom event?
I looked up the threads about this. But I couldn't do it...
this is my method in aspx.page:
public void MesajlariGetir() { DataSet ds = new DataSet(); SqlConnection con = new SqlConnection(); SqlCommand cmd = new SqlCommand("msjlarigetir", con);
I have a LinkButton within a User Control and it has handled with:
Private Sub LoginLinkLinkButton_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles LoginLinkLinkButton.Click Response.Redirect("/", True) End Sub
On certain ASPX pages I would like to handle the click from the page's code behind, opposed to within the user control. How do I override the handle within the control from the parent's code behind page?
Update:
Based on the answer, I have the following no added to the User Control:
[code]....
The problem is determining the correct syntax for the if line because the above is invalid.
I have a webform named Default.aspx and in it an iFrame...
The iFrame will load one of a few different pages/forms/aspx... (for this example lets just say its test.aspx)
On test.aspx I have 2 buttons Button1 and Button2 If I have code in my test.aspx.vb for Button1 click of:
button2.text = "hello world"
it looks as if it reloads test.aspx inside the iFrame and sure enough Button2 states "hello world"
So now lets say on the Default.aspx I also have a button and its named Button5.
How would I go about updating the Button5.Text from with in the vb code of Button1 click/vb code located on Test.aspx
I have looked over some other post [URL] and the tell of using "PreviousPage" but that not seam to be what I need, I want to be able to state the page/form I want to effect a control on it...
I know how to do this in jut standard VB.net (not web) its like:
FromName.ControleName.Text = "Hello World" but then again in VB.net windows apps you dont have Iframse to deal with...
What is the best method to register a stylesheet once on a page from a customer web control? the page uses an UpdatePanel for async calls. I tried just putting the <link> tag in ScriptManager.RegisterClientScriptBlock(), but I get this error:
The script tag registered for type 'MyControl' and key 'MyKey' has invalid characters outside of the script tags: . Only properly formatted script tags can be registered.
If I try to add it to the page by adding it to the control hierarchy, it shows up once for each instance of my control on the page.
I have a page books.aspx that has a control named authors.ascx.
Inside the authors control there is a "select" button I want to add some kind of listener or event handler (not sure of the correct terminology) so on the parent page (books.aspx) I can respond to the "select" button being clicked.
I have to pass the authorID from the user control to the parent page.
In my authors.ascx control I just created this event:
[Code]....
Now I need to write the function for SelectAuthorBtnClick and I think add some kind of listener in the parent page to listen and handle the event.
I wanted to know if we can pass values from Parent page (in this case from Default.aspx page) to the user control and maintain those values on subsequent "Add/Load" of user control.
So in short, if I click the "Add" button it loads my "webusercontrol" and also I am able to pass my default.aspx dropdownlist value to this dynamically loaded user control and assign it to a "Label or Textbox" which resides in my "webusercontrol", now the problem is that the value doesn't persists! What I meant is , when I click "Add" button again the "webusercontrol" gets loaded again perfectly but now all my "Label's" in webusercontrol has the new selected value from the default.aspx dropdownlist.
So say for instance I have a Dropdownlist in Default.aspx page with Values "Apple, BlackBerry, Nokia" and initial value to be passed is "Apple", I click the "Add" button, now my "Label" inside webusercontrol has the value "Apple", perfect! Next when I click "Add" button again and select a different value to be passed this time say "BlackBerry" now I have 2 webusercontrol loaded on the page, so that means I have 2 "Labels" with different ID's, but now my first Label initially had the value "Apple" because that's what I had passed and now when I passed the value "Blackberry" both the labels of my webusercontrol has the value "BlackBerry" instead of one being "Apple" and another "BlackBerry"
Is there a way to resolve this issue? may be Dictionary List?
In order to use a third party API, I had to create a page that does not have form runat="server" in it. Because my app is using MasterPages and have a consistent look and feel throughout the application, though not too thrilled w/ the solution, I had to use iframe to embed this page into my app.It works fine but here's what I want to do. When the API call succeeds, I display a message and want to also place a hyperlink to send the user back to their home page. I think you see what I'm getting at by now. If I do this and the user clicks the link, it's all happening within the iframe.How do I send the user back to his home page and affect the whole page and not just the iframe page?
