Post New Web Links

Find All Controls in UpdatePanel

Posted By: Posted Date: September 13, 2010 Points: 0 Category :ASP.Net

I've used a Ajax UpdatePanel in one of the web forms and just want to clear all TextBoxes content which are in UpdatePanel.I've made sub below, however it dosen't work properly.Please help. Public Sub ClearPanel(ByVal ctrl As UpdatePanel) For Each c As Control In ctrl.Controls If TypeOf c Is UpdatePanel Then ClearPanel(c) If TypeOf c Is TextBox Then CType(c, TextBox).Text = "" If TypeOf c Is DropDownList Then CType(c, DropDownList).SelectedIndex = 0 Next End Sub

View Complete Post

More Related Resource Links

Looping through controls to find reorderlist to set allowreorder

How would I loop through controls on a content page to set allowreorder of all reorderlists to false. Thank you.

Validation Controls Inside UpdatePanel

Hi All,If you use validation control, the base validator will render script WebForm_OnSubmit() to the page and add form onsubmit "onsubmit="javascript:return WebForm_OnSubmit();". This script is used to fire client side validation event.Now I have a listview inside updatepanel, when click edit button to fire the listview edit mode, the above validation script is just not rendered. How shall I work around with that? I need to customize the client validation event here.Thanks.

Masterpage + UpdatePanel + Formview + EditItemTemplate = Null controls

I have a content page with a DropDownList in an UpdatePanel, a GridView in another UpdatePanel and a FormView in a 3rd UpdatePanel. The databind's for the 3 controls happen in the code behind. The FormView is populated when a row is clicked in the grid. The Mode of the FormView is contolled by a series of buttons in that UpdatePanel, displayed as appropriate depending on the data in the grid row. When the FormView is in Insert and the bound textboxes of that template are edited and (partial) posted back, I can retrieve the controls and their values with casts such as: if (Emp_Form.CurrentMode == FormViewMode.Insert) { CheckBox active = (CheckBox)Emp_Form.FindControl("cbActive"); ... But when the FormView is in Edit there aren't and controls during the (partial) post back. A reference to them such as: if (Emp_Form.CurrentMode == FormViewMode.Edit) { TextBox usrNmTB = (TextBox)Emp_Form.FindControl("UserNmTbx"); sUsr = usrNmTB.Text.ToString(); ... results in a Null object reference exception. When a button's onclick runat server event fires how should I capture the FormView's controls collection? Why does it work for the Insert mode and not the Edit mode? Thanks in adva

Issue accessing textbox controls nested within a DetailsView within an UpdatePanel

I have a couple of textboxes nested with a detailsview, within an updatepanel. When I try and access them from the code behind, it returns a null value as if they don't exist. Can't figure out why that would be.ASPX code is: <asp:UpdatePanel ID="upSpecificShout" runat="server" UpdateMode="Conditional" ChildrenAsTriggers="true" > <ContentTemplate> <asp:DetailsView ID="dvSingleShout" DataSourceID="sdsSingleShout" runat="server" AutoGenerateRows="false" OnDataBound="SetDVIcons" HeaderStyle-CssClass="noDisplay" > <EmptyDataTemplate> The panel on the left shows a list of everything you've shouted. (Your replies to other shouts are highlighted in blue/green.) This right hand panel will show specific shouts with a list of replies etc.. Just do a little click on a shout title to display more detail here.

Problem with Dynamic Controls inside an UpdatePanel

Hello Everybody ,I have this problem,if anyone could help me i'll be so gratefull. I had been created some dynamic radio buttons in a loop inside a dinamy table which is inside an UpdatePanel , but i can not handle the events my code is below:public void MetodoCreacion(){RadioButton RBtn = null;Table table = new Table();TableRow row = null;TableCell cell = null;for (int i = 0; i < 5; i++){row = new TableRow();cell = new TableCell();RBtn = new RadioButton();RBtn.ID = "RBGN_" + i.ToString();RBtn.GroupName = "RBGN1";RBtn.Text = "Opcion " + i.ToString();RBtn.CheckedChanged += new EventHandler(RBtn_CheckedChanged);RBtn.AutoPostBack = true;cell.Controls.Add(RBtn);row.Controls.Add(cell);table.Controls.Add(row);}UpdatePanel1_UpdatePanelAnimationExtender.Controls .Add(table);}public void RBtn_CheckedChanged (object sender, EventArgs e){Label1.Text = ((RadioButton)sender).ID;}and the controls doesent call the event ...thanks a lot

controls disappear in UpdatePanel

Hello, I have an update panel and inside the update panel I have a button. When I click that button I want to show textbox which is hidden (i.e. style="display:none"). I want to do it from client side. I wrote a javascript to show the textbox. But the textbox disappears after it is shown. my button code looks like this: <asp:ImageButton id="b1" OnClientClick="showTextBox();">. showTextBox() code is called and it displays the textbox, but the click event goes to the server and comes back and when it comes back it doesnt know about the newly added textbox i guess. Is there an easy way to show the textbox from the client side without going to the server inside UpdatePanel. Any help would be appreciated. Thanks, Bharani

Find all child controls of a type

ÃÂ

Given a normal WPF Window object, I want to walk the list of all controls contained in that Window and find all objects of a specific type...i.e. all of my UserControl objects that were placed in the XAML definition of that Window.ÃÂ What's the best way to do that?

ÃÂ

UpdatePanel, GridView and Timer controls used together - OnTick() and DataBind

Hello,

I am currently working on a page that contains a GridView control which is bound to an ObjectDataSource control. The ObjectDataSource invokes a method on a DAO layer class that returns a DataTable and all is working just fine. Paging and Sorting are enabled and work ok as well. I have "wrapped" the GridView control inside an <UpdatePanel><ContentTemplate> construct and now the Paging and Sorting occur w/o the Page reload as expected - still no problem.

However, now I want to have the GridView simply refresh itself every 5 to 10 seconds so I placed a Timer control w/ an interval of 5000 milliseconds INSIDE the UpdatePanel. I am sure there is more that must be wired and have had trouble finding a good article where the UpdatePanel, TimerControl, and GridView control are used together. Examples that I have seen use Label controls and implement the OnTick event but it is not clear yet to me how to use this w/ a databound control like a GridView. Can anyone suggest a link or 2 showing an example of this scenario.

NOTE: I am not currently programmatically "binding" the GridView control. The GridView control and ObjectDataSource control are simply bound by setting the DataSourceID property of the GridView to the ID of the ObjectDataSource - they are bou

Ajax Controls - ComboBox inside updatepanel

I have a web part which has an updatepanel with variuos panels.

When i add a combobox to a panel which is not shown to begin with but then is set to visible = true, the combobox erros and is not displayed correctly.

If i have one combobox already visible and working fine, then the others are OK - but thats not a solution.

How do i have a combobox inspde a hidden panel and then show it without having to rebind the whole page.

Thanks

John

Find and Set DetailsView Controls In Empty Data Template in Gridview

Hello:

I would like to find controls in the detailsview control placed in the EmptyData Template of the gridview. I am trying to create Insert new record for the gridview control.

1. If there are existing records in the table - works fine and sets my two values:
I placed Detailsview and Insert Button in the footer of the gridview. I needed to set the values of two fields. When I click on the Insert button it saves new record and sets the field with the value (code attached - works fine). I also have a popup extender that opens detailsview - this works just fine.

2, If ther are not records in the table - saves record but cannot find and set controls on the detailsview
Same thing setup in the EmptyData Template. The record is saved but I cannot Find and set the field value on the control.

Here is code:

1. Link button (on click) in the gridview footer (works fine)

protected void LinkButton1_Click1(object sender, EventArgs e)

{

string zupa1;

zupa1 = ddlSelectEmployee.SelectedValue;

try

{

&nb

All TextBox controls in ASP.NET UpdatePanel won't accept any input after post-back

ÃÂ My code behind is VB.NET. I use ASP.NET UpdatePanel like the following. However, after the post-back, all textbox in UpdatePanel won't accept any input, except when I move the mouse over and click on the TextBox.

Here's why I use UpdatePanel:

During the post-back, after inserting data into DB, set all TextBox text property to String.Empty

After the form is submitted, the Panel pStudent should be refresh , not the entire page

and the TextBox txtId is set in focus again.

It's very strange that this happened to me today. I used UpdatePanel before many time I never had such problem.

Can anyone show me why ÃÂ all TextBox controls in UpdatePanel won't accept any input after the post-back even though the textbox is focused , only when you move mouse click in them?ÃÂ

    <asp:UpdatePanel ID="upPOS" runat="server">
        <ContentTemplate>
            <asp:Panel ID="pStudent" runat="server" CssClass="InContentInfoLight" 
        DefaultButton="btnSubmit" GroupingText="Cafeteria - POS">
                <br />
                <div class ="divleftcolumn-six">
                    ID Number :
                    <asp:TextBox ID

Sys.InvalidOperationException: Could not find UpdatePanel... on ascx.page

Hi, I have three UpdatePanels on my ascx page. In first I have gridview, in second I have DetailView. DetailsView is in a Panel, after click on buttom -

Panel show or hide. All works fine. I added third Panel, new Buttom , inside Panel I put UpdatePanel and I would like the some function as in DetailView - show or hide Panel.

After click on buttom I can see this error

-Sys.InvalidOperationException: Could not find UpdatePanel with ID 'xxxxxxxxxxx. If it is being updated dynamically then it must be inside another UpdatePanel.

I tried many examples, whitch I found on the internet (move Buttom on page - change its position, add UpdateMode="Conditional" to the UpdatePanel), but without any resolution.

Please, can anybody help me?

Thanks

My code

<asp:Panel ID="Panel6" runat="server" CssClass="myCssClass">
 <div>
 <asp:Button ID="Button1" runat="server"
 CausesValidation="False" meta:resourcekey="Button1Resource1"
 UseSubmitBehavior="False" Text="Show&qu

JQuery unable to find controls on a page

I have a JQuery date mask, but when I run the page it throws an error "Microsoft JScript runtime error: Object doesn't support this property or method".

Now, the control that this particular JQuery is meant to be working is added dynamically to a repeater control. Through this, I have looked at the ids of the control, where it was breaking and stopping in Visual Studio and what is being shown on the aspx page. The ids are identical except of the "#" that JQuery has at the start, which is not on the page.

In my JQuery code I have:

JQuery(function ($) {

$('#<%=date.ClientID %>').mask("99/99/9999");

});

Is there away to tell JQuery not to include the "#" when findi

Master page controls postback is not working with updatepanel

?Hi All,

I have a web page that contains an updatepanel, inside this there is a button with script in OnClick event.

While clicking the button am setting a text in the label control which is in the site.master

My problem is that label is not showing the text am setting (or postback for master control is not working).

Without updatepanel label is coming.

Thanks in advance

Sree

Binding WPF Controls to an Entity Data Model

In this interview, programming writer, McLean Schofield, demonstrates how to bind WPF controls to an entity data model, using Visual Studio 2010 Beta 1. You can also learn more in the topic: Walkthrough: Binding WPF Controls to an Entity Data Model.

Custom Controls in C# .NET

Embedding user controls in a Windows form is just like adding a simple button or text box that are already provided with .NET. These basic controls were written essentially like you code your own controls. Typically the controls you design are to be used in multiple forms or to modularize your code. These reasons help reduce the amount of code you have to type as well as make it easier for you to change your implementation. There should almost never be any reason to duplicate code because it leaves a lot of room for bugs. So, implementing functionality specific to your control in the control's source code is a good idea. This reduces code duplication as well as modularize your code, which is a good programming guideline.

Accessing the different controls inside a GridView control

how we can access a particular control which resides inside a GridView control. In this article I will show you how you can access different controls inside a GridView control. We will see how we can access a TextBox control, a DropDownList control and a ListBox control. If you are working with ASP.NET 1.X then you might want to check out my article Accessing Different Controls Inside a DataGrid.


Categories:

ASP.Net	Windows Application	.NET Framework	C#	VB.Net	ADO.Net
Sql Server	SharePoint	Silverlight	Others	All