AJAX :: Developing Custom Control?
Jun 5, 2012how we can develop a custom control of gridview in asp.net custom control, with dynamic columns.
View 1 Replies
Similar Messages:
AJAX :: Developing A Custom Server Control (grid)?
Nov 24, 2010I am interested in learning how to develop a custom asp.net ajax gridview, and I have obtained some books on the subject, but would still like a quick answer for a question: When developing a custom ajax server control, can I somehow use jquery for the client-side part of the control? Are there any collisions with ASP.NET AJAX framework and are there special requirements (e.g. only available for .NET 4.0 etc.)?I would also appreciate any suggestions on resources from which I can learn more about developing a custom asp.net ajax server control from scratch.
View 5 RepliesAJAX :: Developing A New Web Solution Where There Are Some Dynamic Control On The Page?
Feb 22, 2010I am new to AJAX. I am developing a new Web Solution where there are some dynamic control on the page.My requirement was to have a gridview this is in one update panel, on clicking on the edit gridrow, it will popup a DetailView which is in a update panel & a modal popup of the row & user can change it & submit it to the main page.Now i have used a Update panel for the detailed view so that i can call a update() on the Detailed View's update panel after binding it to the detailview.Now the detailed view updatepanel also has a drop down & a gridview, so selecting the dropdown it populates the gridview in the updatepanel.Again the dropdown is put in one updatepanel which even contains the gridview & the gridview is in another child updatepanel.The gridview has a checkbox in enabled =true stateNow the issue. When i do a checkbox checked & an autopost the event fires which updates the parent updatepanel & the event is lost in the process & i cannot modify the underlying dataobject.If any one can shed on somelight of where exactly i am going wrong, it would be of extremeI am pasting the code for the aspx file which contains most of the binding in declaraative mode.
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="DataPointManager.aspx.cs"
EnableSessionState="True" EnableViewState="false" Inherits="WebApplication.DataPointManager1" %>
[code]...
Usercontrols - Recommend Books For Developing User And Custom Controls?
Mar 13, 2010Please recommend books for developing ASP.NET User and Custom Controls
View 2 RepliesCustom Server Controls :: .NET Menu Custom Control With Ajax Is Not Working?
Jan 13, 2010When I implement Custom web control inheriting ASP.NET Menu Ajax is not working. I try to Override Render method and generate Li's rather than table.I try to use Control Adapters, but when I am not using adapters for some pages ithe base adapter is generating just hyperlinks with span. I do not want this way. So I can not use these.
View 1 RepliesAJAX :: Necessary To Give Control To Validate Control In Custom Validator
Sep 18, 2013Is it necessary to give Control to Validate control in Custom Validator?
If yes then why this will happen?
AJAX :: Template Based Custom Control For Ajax Modal Popup
Jun 15, 2010Lets say I have a user control AjaxUC.
<asp:ModalPopupExtender ID="modalSearch" runat="server" TargetControlID="btnHiddenSearch"
PopupControlID="pnlModalSearch" DropShadow="false" RepositionMode="RepositionOnWindowResize"
Drag="false" BackgroundCssClass="modalBackground" >
</asp:ModalPopupExtender>
<asp:Button ID="btnHiddenSearch" runat="server" Style="display: none" />
<asp:Panel ID="pnlModalSearch" runat="server" CssClass="modalPopup">
<asp:Panel ID="pnlModalSearchContent" runat="server">
<asp:Label ID="lblSearchTitle" runat="server" CssClass="modalPopupTitle"></asp:Label>
<div id="divContent" runat="server">
</div>
<asp:Button ID="btnModalSearchClose" runat="server" Text="Close" CausesValidation="false"
OnClick="BtnModalSearchCloseClick" />
</asp:Panel>
</asp:Panel>
<input type="hidden" id="hdVisible" runat="server" />
------------------------------------------------------------------------ AjaxUC.ascx.cs:-
public partial class AjaxUC : System.Web.UI.UserControl { private ITemplate _content = null; [TemplateInstance(TemplateInstance.Single)] [TemplateContainer(typeof(Container))] [PersistenceMode(PersistenceMode.InnerProperty)] public ITemplate Content { get
{ return _content; } set
{ _content = value; } } void Page_Init() { if (_content != null) { Container container = new Container(); _content.InstantiateIn(container); divContent.Controls.Add(container); lblSearchTitle.Text = LblModalSearchText; } } protected void Page_Load(object sender, EventArgs e) { if (hdVisible.Value=="true") { modalSearch.Show(); } } } public class Container : Control, INamingContainer { internal Container() { } }}
This control when used on any aspx page will popup the control placed inside the template "divContent" as modalpopup.
________________________________________________________________________
Now I am trying to convert this user control to Custom Control and my code is:-
[ParseChildren(true)] [PersistChildren(true)] public class DNAWebAjaxTool : PlaceHolder { public event EventHandler BtnModalSearchCloseClickEvent; public event EventHandler Click; private ITemplate _content = null; private HtmlInputHidden _hdVisible; private Panel _pnlModalSearchContent; private Panel _pnlModalSearch; private ModalPopupExtender _modalSearch; private Button _btn; private DivContainer divContent = new DivContainer(); private string _viewState; public DNAWebAjaxTool() { } public Panel PnlModalSearchContent { get
{ if (_pnlModalSearchContent == null) { _pnlModalSearchContent = new Panel(); } return _pnlModalSearchContent; } } public ModalPopupExtender ModalSearch { get
{ if (_modalSearch == null) { _modalSearch = new ModalPopupExtender(); } return _modalSearch; } } public string ViewState { get
{ return _viewState; } set
{ _viewState = value; } } public HtmlInputHidden HdVisible { get
{ if (_hdVisible == null) { _hdVisible = new HtmlInputHidden(); } return _hdVisible; } } [TemplateInstance(TemplateInstance.Single)] [TemplateContainer(typeof(DivContainer))] [PersistenceMode(PersistenceMode.InnerProperty)] public ITemplate Content { get
{ return _content; } set
{ _content = value; } } protected override void OnInit(EventArgs e) { _content.InstantiateIn(divContent); base.Controls.Add(divContent); base.OnInit(e); } protected override void OnLoad(EventArgs e) { if (HdVisible.Value == "true") { ModalSearch.Show(); } base.OnLoad(e); } void _btn_Click(object sender, EventArgs e) { BtnModalSearchCloseClickEvent(sender, e); } public virtual void Hide() { PnlModalSearchContent.Visible = false; ModalSearch.Hide(); ViewState = "false"; } public virtual void Show() { PnlModalSearchContent.Visible = true; ModalSearch.Show(); ViewState = "true"; } protected override void CreateChildControls() { base.CreateChildControls(); } protected override void Render(HtmlTextWriter writer) { if (ViewState == "true") { _modalSearch = new ModalPopupExtender(); _modalSearch.ID = "modalSearch"; _modalSearch.TargetControlID = "btnHiddenSearch"; _modalSearch.PopupControlID = "pnlModalSearch"; _modalSearch.DropShadow = false; _modalSearch.RepositionMode = AjaxControlToolkit.ModalPopupRepositionMode.RepositionOnWindowResize; _modalSearch.Drag = false; _modalSearch.BackgroundCssClass = "modalBackground"; _modalSearch.Show(); _btn = new Button(); _btn.ID = "btnHiddenSearch"; _btn.Style.Value = "display: none"; _btn.RenderControl(writer); _pnlModalSearch = new Panel(); _pnlModalSearch.ID = "pnlModalSearch"; _pnlModalSearch.CssClass = "modalPopup"; _pnlModalSearch.RenderControl(writer); PnlModalSearchContent.ID = "pnlModalSearchContent"; PnlModalSearchContent.RenderControl(writer); divContent.RenderControl(writer); _btn = new Button(); _btn.ID = "btnModalSearchClose"; _btn.Text = "Close"; _btn.CausesValidation = false; _btn.Click += new EventHandler(_btn_Click); _btn.RenderControl(writer); } } } public class DivContainer : Control, INamingContainer { internal DivContainer() { } }
________________________________________________________________________________________________
The problem I am facing is that the modalpopup extennder is not coming up as a popup.
AJAX :: Developing Own Time Extender
Apr 29, 2010We all know that, there is lot of extender available with AJAX. Experts, I want to develop an extender, which show time. Like 05:45. How should I move ahead? I am new to this concept.
View 10 RepliesSecurity :: Setting The Password For The Login Control For Developing?
Apr 14, 2010To speed up my login when developing , I would like to set the text for the password textbox so all I have to do is click the login button at runtime.Also is there a debug/release flag or something like that , that can be used to run code for development only?
View 3 RepliesC# - Add Reference To Method In Custom Control To A Child Control Created In That Same Custom Control
Feb 3, 2010I have a custom control that is based off the gridview control located at: here The control is basically a gridview that automatically creates a column of checkboxes that can be used to "check" individual rows in the gridview. During the gridview's "CreateColumns" event, the "checkboxcolumn" is created dynamically. The checkboxcolumn also contains another checkbox in the header that is used to "select/deselect all" checkboxes in the column. Since the gridview does not automatically remember the state of the checkboxes in the checkboxcolumn on postback, I added a method to the control called "SaveCheckBoxState" which stores the indexes of the checked rows in Viewstate, and then I modified the "OnRowDataBound" event to check the Viewstate and reset the checkboxes based on the Viewstate.
I then added a call to "SaveCheckBoxState" in the gridview's OnSorting and OnPageIndexChanging events. This works great so long as I'm sorting or changing pages. However, I need it to update the viewstate everytime someone clicks or unclicks one of the checkboxes. At this time, the checkboxes are rendered with an onclick event that calls some javascript to highlight the row, or in the case of the checkbox in the header, to select/deselect all checkboxes. I need to call the "SaveCheckBoxState" method from the javascript used by the customcontrol, or I need to find a way to modify viewstate from javascript and perform the same action as "SaveCheckBoxState".
I've tried adding the "SaveCheckBoxState" to the onclick event declaration in the checkboxes, but when run, it simply tells me that the method is undefined. It doesn't exist in the parent page, and I don't think I should have to make an event for the parent page to pass the click to. It seems to me this should be all self contained within the custom control. Does anyone know how I can acheive this? Here is the code for the gridview OnPreRender event where the onclick event of the checkbox is set:
protected override void OnPreRender(EventArgs e)
{
// Do as usual
base.OnPreRender(e);
// Adjust each data row
foreach (GridViewRow r in Rows)
{
// Get the appropriate style object for the row
TableItemStyle style = GetRowStyleFromState(r.RowState);
// Retrieve the reference to the checkbox
CheckBox cb = (CheckBox)r.FindControl(InputCheckBoxField.CheckBoxID);
// Build the ID of the checkbox in the header
string headerCheckBoxID = String.Format(CheckBoxColumHeaderID, ClientID);
// Add script code to enable selection
cb.Attributes["onclick"] = String.Format("ApplyStyle(this, '{0}', '{1}', '{2}')",
SelectedRowStyle.CssClass,
style.CssClass,
headerCheckBoxID);
// Update the style of the checkbox if checked
if (cb.Checked)
{
r.BackColor = SelectedRowStyle.BackColor;
r.ForeColor = SelectedRowStyle.ForeColor;
r.Font.Bold = SelectedRowStyle.Font.Bold;
}
else
{
r.BackColor = style.BackColor;
r.ForeColor = style.ForeColor;
r.Font.Bold = style.Font.Bold;
}
}
}
Custom Server Controls :: Custom Control's Constructor / User To Set That variable In The Properties Window After They Drag The Control Onto A Form?
Mar 4, 2010I have a custom control which inherit from the Table class and in the constructor, it takes a an integer as an argument. There is no empty constructor.
Is there a way for the user to set that variable in the properties window after they drag the control onto a form.
I know some .NET controls, you can set the source for the parameter to different things like another control's property, QueryString using just the properties window.
Right now, I have to create the control dynamically. I read the query string and then created the object.
Custom Server Controls :: Paging And Sorting Gridview Custom Control Inside Of A Wizard Control?
Dec 24, 2010here's a situation and I would appreciate your response.
I have programmatically created the Wizard control:
Page_Load(obj s, evargs e)
{
Wizard ClaimDetailWizard = new Wizard();
foreach(int item in selectedItems)
{
//create new step
//added custom control to new step
//add step to wizard
}
//added wizard to a placeholder on a page
}
Based on List I get from Session i added new steps to my wizard To each step I had added a custom control
Each custom control in tern contains another custom Gridview Control in it.
So here's the problem when the page loads for example for two steps. All is good Wizard does what it's supposed to do.
But when I try to use sorting or paging in that custom Gridview. Somehow it displays the gridview I should see in the next step of the wizard.
Also what I'm noticing through debugging. Is that when I press next in the wizard I go back to the original page where I do all of the code specified above, and it recreates the wizzard. But it goes to the next step. Is this the way wizard supposed to work? Just doesn't seem very efficient.
Custom Server Controls :: Add This Control To The Page,an Alert To Check The Text Value Of The Custom Control?
Dec 20, 2010created a Custom Textbox Control that is intended to be a "masked date" textbox, so that I can handle different ways a user might enter in a date and make it work no matter what.I did this by creating a custom control with 3 separate Textboxes one for month,one for day one for year,then do some handling for different things that could be entered and it would all work.
The problem I am having is,when I add this control to the page,if I do an alert to check the Text value of the custom control it just gives me "[ServerControl1]" even if I enter in a date.
I tried doing an AutoPostback after entering so that it would refesh the Viewstate to have the values of the textboxes but the control doesnt seem to actually postback, even though I have it enabled.accessing the Textbox value after someoen
has entered a date?first custom control I have created and have been using google.
My Server Control Code is as follows:
[Code]...
AJAX :: Using The CalendarExtender With A Custom Control?
Mar 2, 2010I've written a custom date control that inherits the TextBox control, but has it's own three textboxes for capturing month,day, and year separately. I wanted to use the CalendarExtender with it so people could plug in the date that way as well, but I cannot "trigger" the CalendarExtender to show with my custom control.
View 6 RepliesAJAX :: Developing A Mozilla Extension - How To Write The Server Side?
Feb 23, 2010Most of my experience has been developing 'webpages'. Presently, I am developing a mozilla extension which does not support web services, others have suggested to use XMLHttpReqest instead. I have the client side code for it but have no idea on how to write the server side for it.
View 2 RepliesCustom Server Controls :: Unable To Convert User Control To Custom Control
Oct 27, 2010 I have created a user control and am ready to convert it into a custom control. I am trying to follow:
[URL] the steps mentioned in the link.
I am not seeing Build / Publish Web Site option.
I am using VS 2008. I only see Publish User Control but it doesn't give all the settings mentioned below. When I do publish user control, it just copies the ascx file to the desired location. how can I convert the user control to custom control.
AJAX :: Run A Function Associated With Custom Control After It Is Initialized?
Mar 31, 2010How do I run a function associated with my custom control after it is initialized? So for example, after the control has initialized (ie is loaded) I need to finalize some properties. But since it is composed of a number of other controls, I need to know all the controls are present. I've tried add_load but I can't seem to get the context right to see my contol's specific functions. If I place the onLoad metod in the main class (javascript) definition, the contol id dosen't exist yet, same for in the prototype.
Since the control id dosen't exist yet I need to wait for the load event but now i'm in a chicken and egg problem. How do I create a method of my control class and call it "after" initilization? Seems like a simple question but it hasn't been so easy to find an answer.
AJAX :: CollapsiblePanelExtender Within Custom Server Control?
Oct 1, 2010I am trying to use a collapsible panel extender within a custom server control. I've used the extender elsewhere with no issues but when I try to add the control to my panels collection of controls in my custom control, my page crashes. Take it out and no error. I'm adding other controls to the panel...literals, labels, etc. This, however is the only ajax control I am using. Is there something I need to do as far as registering the extender with the script manager (on the master page)?
View 2 RepliesAJAX :: Using Modalpopupextender Within A Custom User Control?
Jun 30, 2010I have a modalpopupextender inside a custom user control and when the user clicks on a imagebutton in the custom user control, this modalpopup has to be displayed to the user for inputs. The problem that I am facing is that nothhing is getting displyed even after clicking the image button.
i am using master pages and this custom user control is being added dynamically to one of the child pages. I have added the scriptmanager as a part of the child page rather than as a part of the user control because there are multiple custom user controls present in this page.
Lemme go to the code:
This is the snippet present in the custom user control:
[Code]....
AJAX :: Custom Control Validator - Can't Set The Width Property
Nov 23, 2010 I am trying to set the width property of a custom control validator but it is not happening at all. The width of the validator control popup is constantly 100% width (the width="200px" below has NO effect at all)
here is my code:
[code].....
AJAX :: Dynamic ModalPopupExtender Within A Custom Server Control?
Sep 13, 2010 have this piece of code which paint an ImageButton and show a dynamic ModalPopupExtender (with 2 buttons btnGuardar and btCancel).
The issue is neither btGuardar.Click nor btHidden.Click events are raised but ImageButton Click event is raised correctly.
[Code]....
AJAX :: Creating Custom Control Using Textbox & MaskedEditExtender?
Jul 23, 2010I want to create a custom control or user control using TextBox & MaskedEditExtender control.
I am going to add this control dynamically. So to avoid setting each property each time I tried to create a custom control like this.
[Code]....
but when user enters value and clicks on submit button I get empty string but in next submit I get the value.
Accessing Property Value Of A Custom Control By Another Custom Control In Design-time
Oct 18, 2010I created an Extender which has a custom property that drills down a list XML elements from an xml file, where users can select xml elements during design-time. This works perfectly fine. However, my code only has a hardcoded xml filename (source of the xml elements list) and I need to change this by maxing the xml file user-specified.
What I did is that I created another control (panel) which has a custom property that when clicked (through the ellipsis), it will allow a developer to select the xml file which is supposed to be the source xml file that the Extenders shall use. The filedialog from custom panel's property works perfectly fine.
However, my problem now is that when I drag-drop my Extender, I cannot find a way to get the property value of the custom Panel Control which contains the xml filename. I tried creating a static variable which I thought the custom controls can share but VS2010 is breaking.
AJAX :: Custom Control In Updatepanel Should Create Full Postback?
Jun 2, 2010I am searching already the web for some hours to get this working. I created a custom control (ConfigTree), which has a treeview as part of it. I put the custom control into an update panel. So far so good. When I click on different buttons (in ucc:ConfigTree) or the treeview in the custom control an async postback is done. When clicking on a node in the treeview an event for the parent element (ConfigTree) is generated, which populates again an event (NodeSelected) for the parent element (shown below). Different parent elements can handle the event differently. In one element (this one) I need to transform the async postback in a real postback with full page refresh. For better understanding see the following code:
[Code]....
the parent element (here shown) should process the OnNodeSelected and transform it into an full postback and not just an async postback, but only this event, all the other events in the ucc:ConfigTree should processed async. How can I do that? Is there a method to call in the code behind?
AJAX :: Custom Control Click Not Fired In Update Panel?
Apr 13, 2010I've some problem using custom control inherited from ImageButton in Update panel.
When I use orginal asp:ImageButton , onclick event if fired as well. But when i hit my inherited control, click event isn't fired.
Here's my custom control code:
[Code]....
Here's HTML code for it:
[Code]....
And here the onclick event:
[Code]....