In my project when i click any button or linkbutton, it doesnt fire any event or doesnt postback.
It was working fine but now it hv problem like this.
I think i have changed some settings by mistake.
I have a small website where I want to display a confirmation dialog after clicking on a button.
When you click the confirmButton the dialog appears. Then you can choose between Yes or No to either continue with the PostBack or to return.
Problem: The first time you get into the site all works fine. But after you click Yes to continue with the PostBack, no click event will be triggered anymore.
Here is some code.
[Code]....
I have to click twice on button control to fire an event.
View 6 Repliesi have a JQuery ui dialog box that opens up as a contact form when a link is clicked, which works fine, my problem is trying to submit the information.
When you click the send button it fires a button click event of another asp:button ive got hidden on the page...
the post back event fires and the page reloads but the asp:button click event doesn't not fire?
Heres my code:
asp:Button is as follows:
Code:
[code]....
When the user selects an "account" we dynamically create a linkbutton with the selected dates. However, the linkbutton onclick handler doesn't fire when the button is clicked.
Dim linkBtn As New LinkButton
linkBtn.Text = "blah"
AddHandler linkBtn.Click, AddressOf linkButtonHandler
linkBtn.ID = panelDatesRencontre.Controls.OfType(Of LinkButton).Count
panelDatesRencontre.Controls.Add(linkBtn)
ScriptManager1.RegisterAsyncPostBackControl(linkBtn)
Dim Trigger1 As New AsyncPostBackTrigger
Trigger1.ControlID = linkBtn.ID
Trigger1.EventName = "Click"
UpdatePanel2.Triggers.Add(Trigger1)
Answer: i make that in page_load, it seems to work
I've some really strange behaviour with a simple ASP.NET Button. Here's my code:
[Code]....
For some reason the first time I click this button, the code is beeing fired. When login credentials are wrong, a message shows up. THen, the user inserts the right credentials. After clicking the 'cmdLogin' button, nothing happens and the old (wrong) values are beeing filled in inside the textboxes. This behaviour occured to me after switching to ASP.NET 4.0.
im using an update panel and my web form consists of textboxs and combo box, my problem is that when i click the button save for the first time, my page simply postbacks and the event save wouldnt fire, click it the second time and poof save will execute.. I notice that it is caused by my dropdown box and textbox autopostback function, i need to set this to true since i need to execute another function that will disable the dropdown when the textbox is filled and vice versa,set this to false and save will function normally..any ideas how to fix this?
here is the code for that.
<asp:DropDownList
ID="ddNewLocation"
runat="server"
Width="95%"
AutoPostBack="true"
AppendDataBoundItems="True"
onselectedindexchanged="ddNewLocation_SelectedIndexChanged">
<asp:TextBox
ID="txtNewLocation"
runat="server"
Width="90%"
AutoPostBack="true"
ontextchanged="txtNewLocation_TextChanged"></asp:TextBox>
In my default Page I register this listener:
[Code]....
and this Event is never fired
[Code]....
A little confused on something. I have a User Control in a master page. In the User Control there are image buttons. when I try to wire any click event even to say update a label in the User Control itself, nothing gets updated.
It is as if the postback is not handled at all.
What I want to do is click the image button in the User Control and then change a value in the master page. This could happen a few ways but for example it could update a public property or a control itself like a textbox or label.
I don't understand because the click event doesn't fire in ascx control nested in masterpage.
The scenario is:
In Page Pre-Init i load a particular MasterPage, one of these have a ascx control with LogOff Button.
The ascx is showed correctly but doesn't fire the button click event that allow me to logoff.
I haven't load the control programmatically but directly in masterpage:
[Code]....
[Code]....
I'm trying to manually create a button and add a Click event handler for it in code. However when the button is clicked the event handler doesn't seem to react on event (or event isn't called).
we tested the code in Visual Studio 2008 and everything worked just as it should. And I'm using Visual Web Developer 2005 XE. So I assume that I'm missing something to be done manually being in VWD 2005 XE, or the problem is in VWD 2005 XE it self.
here is what I'm doing:
[Code]....
The following code is my ASP.NET page :
<MdsMenu:MenuItem Text="Button" Href="#">
<asp:Button ID="Button1" runat="server" Text="Button 01" OnClick="Button_Click" />
<asp:Button ID="Button2" runat="server" Text="Button 02" OnClick="Button_Click" />
</MdsMenu:MenuItem>
I don't know why Button_Click event doesn't fire!
protected void Button_Click(object sender, EventArgs e)
{
Button senderButton = sender as Button;
Label1.Text = senderButton.ID.ToString();
}
MdsMenu:MenuItem is my custom WebControl. If I insert a Button control out of MdsMenu:MenuItem tag it works well but if I inserted it within MdsMenu:MenuItem tag it doesn't fire the concerned method. What's wrong with my code?
Edit:
Menu.cs
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Text;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Security.Permissions;
using System.Collections;
using System.ComponentModel.Design;
using System.Drawing.Design;
using System.Web.UI.HtmlControls;
using System.IO;
namespace MenuServerControl
{
[AspNetHostingPermission(SecurityAction.Demand, Level = AspNetHostingPermissionLevel.Minimal)]
[AspNetHostingPermission(SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
[DefaultProperty("MenuItems")]
[ParseChildren(true, "MenuItems")]
[ToolboxData("<{0}:Menu runat="server"> </{0}:Menu>")]
public class Menu : WebControl
{
#region Fields
private List<MenuItem> _MenuItems;
string _Direction
{
get
{
string direction = "";
switch (this.Direction)
{
case Directions.LeftToRight:
direction = "direction:ltr;";
break;
case Directions.RightToLeft:
direction = "direction:rtl;";
break;
default:
direction = "direction:rtl;";
break;
}
return direction;
}
}
string _AnimationDelay
{
get
{
if (AnimationDelay == null)
AnimationDelay = 1000;
return AnimationDelay.ToString().ToLower();
}
}
string _AnimationType
{
get
{
switch (this.AnimationType)
{
case AnimationType.Opacity_Height:
return "animation:{opacity:'show',height:'show'}";
case AnimationType.Opacity_Width:
return "animation:{opacity:'show',width:'show'}";
case AnimationType.Opacity:
return "animation:{opacity:'show'}";
case AnimationType.Height:
return "animation:{height:'show'}";
case AnimationType.Width:
return "animation:{width:'show'}";
case AnimationType.Height_Toggle:
return "animation: {height: 'toggle'}";
case AnimationType.Width_Toggle:
return "animation: {width: 'toggle'}";
default:
return "animation:{opacity:'show',height:'show'}";
}
}
}
string _AnimationSpeed
{
get
{
switch (this.AnimationSpeed)
{
case AnimationSpeed.Fast:
return "speed:'fast'";
case AnimationSpeed.Normal:
return "speed:'normal'";
case AnimationSpeed.Slow:
return "speed:'slow'";
default:
return "speed:'fast'";
}
}
}
string FloatStyle
{
get
{
if (Direction == Directions.RightToLeft)
return "float:right;";
else return "";
}
}
string _Main_ul_CssClass = "";
#endregion
#region Properties
public string Main_ul_CssClass
{
get
{
if (string.IsNullOrEmpty(_Main_ul_CssClass)) return "";
_Main_ul_CssClass = "class=" + _Main_ul_CssClass;
return _Main_ul_CssClass;
}
set
{
_Main_ul_CssClass = value.Trim();
}
}
public Directions Direction { get; set; }
public int? AnimationDelay { get; set; }
public AnimationType AnimationType { get; set; }
public AnimationSpeed AnimationSpeed { get; set; }
public bool DropShadow { get; set; }
public bool AutoArrows { get; set; }
[Category("Behavior")]
[Description("The menu collection")]
[DesignerSerializationVisibility(DesignerSerializationVisibility.Content)]
[PersistenceMode(PersistenceMode.InnerDefaultProperty)]
public List<MenuItem> MenuItems
{
get
{
if (_MenuItems == null)
_MenuItems = new List<MenuItem>();
return _MenuItems;
}
}
public VerOrHor VerticalOrHorizontal { get; set; }
#endregion
#region Methods
public Menu()
{
DropShadow = true;
AutoArrows = true;
}
public override void RenderBeginTag(HtmlTextWriter writer)
{
writer.Write("<div id="" + this.ID + "" style="" + _Direction + " " + FloatStyle + "">");
}
public override void RenderEndTag(HtmlTextWriter writer)
{
writer.Write("</div>");
}
protected override void OnPreRender(EventArgs e)
{
base.OnPreRender(e);
#region Adding Script & link Tags
HtmlGenericControl jquery = new HtmlGenericControl("script");
jquery.Attributes.Add("type", "text/javascript");
jquery.Attributes.Add("src", Page.ClientScript.GetWebResourceUrl(typeof(MenuServerControl.Menu), "MenuServerControl.JavaScriptFiles.jquery_1_4_3.js"));
jquery.EnableViewState = false;
Page.Header.Controls.Add(jquery);
HtmlGenericControl hoverIntent = new HtmlGenericControl("script");
hoverIntent.Attributes.Add("type", "text/javascript");
hoverIntent.Attributes.Add("src", Page.ClientScript.GetWebResourceUrl(typeof(Menu), "MenuServerControl.JavaScriptFiles.hoverIntent.js"));
hoverIntent.EnableViewState = false;
Page.Header.Controls.Add(hoverIntent);
HtmlGenericControl jquery_bgiframe_min = new HtmlGenericControl("script");
jquery_bgiframe_min.Attributes.Add("type", "text/javascript");
jquery_bgiframe_min.Attributes.Add("src", Page.ClientScript.GetWebResourceUrl(typeof(Menu), "MenuServerControl.JavaScriptFiles.jquery_bgiframe_min.js"));
jquery_bgiframe_min.EnableViewState = false;
Page.Header.Controls.Add(jquery_bgiframe_min);
HtmlGenericControl superfish = new HtmlGenericControl("script");
superfish.Attributes.Add("type", "text/javascript");
superfish.Attributes.Add("src", Page.ClientScript.GetWebResourceUrl(typeof(Menu), "MenuServerControl.JavaScriptFiles.superfish.js"));
superfish.EnableViewState = false;
Page.Header.Controls.Add(superfish);
HtmlGenericControl supersubs = new HtmlGenericControl("script");
supersubs.Attributes.Add("type", "text/javascript");
supersubs.Attributes.Add("src", Page.ClientScript.GetWebResourceUrl(typeof(Menu), "MenuServerControl.JavaScriptFiles.supersubs.js"));
supersubs.EnableViewState = false;
Page.Header.Controls.Add(supersubs);
if (Direction == Directions.LeftToRight)
{
HtmlGenericControl csslink = new HtmlGenericControl("link");
csslink.Attributes.Add("href", Page.ClientScript.GetWebResourceUrl
(typeof(Menu), "MenuServerControl.CSS.superfish.css"));
csslink.ID = "NavigationMenu";
csslink.Attributes.Add("type", "text/css");
csslink.Attributes.Add("rel", "stylesheet");
csslink.EnableViewState = false;
Page.Header.Controls.Add(csslink);
}
else
{
HtmlGenericControl csslink = new HtmlGenericControl("link");
csslink.Attributes.Add("href", Page.ClientScript.GetWebResourceUrl
(typeof(Menu), "MenuServerControl.CSS.RightToLeft superfish.css"));
csslink.ID = "NavigationMenu";
csslink.Attributes.Add("type", "text/css");
csslink.Attributes.Add("rel", "stylesheet");
csslink.EnableViewState = false;
Page.Header.Controls.Add(csslink);
}
if (this.VerticalOrHorizontal == VerOrHor.Vertical && this.Direction == Directions.RightToLeft)
{
HtmlGenericControl csslink01 = new HtmlGenericControl("link");
csslink01.Attributes.Add("href", Page.ClientScript.GetWebResourceUrl
(typeof(Menu), "MenuServerControl.CSS.RightToLeft superfish-vertical.css"));
csslink01.Attributes.Add("type", "text/css");
csslink01.Attributes.Add("rel", "stylesheet");
csslink01.EnableViewState = false;
Page.Header.Controls.Add(csslink01);
}
else if (this.VerticalOrHorizontal == VerOrHor.Vertical)
{
HtmlGenericControl csslink01 = new HtmlGenericControl("link");
csslink01.Attributes.Add("href", Page.ClientScript.GetWebResourceUrl
(typeof(Menu), "MenuServerControl.CSS.superfish-vertical.css"));
csslink01.Attributes.Add("type", "text/css");
csslink01.Attributes.Add("rel", "stylesheet");
csslink01.EnableViewState = false;
Page.Header.Controls.Add(csslink01);
}
#endregion
}
protected override void RenderContents(HtmlTextWriter output)
{
output.Write(CreateMenuHtmlTags());
}
StringBuilder CreateMenuHtmlTags()
{
if (this._MenuItems == null)
throw new Exception("تگ های مربوط به منو را کامل کنید");
StringBuilder Html = new StringBuilder("");
#region Add <Script>
if (String.IsNullOrEmpty(Main_ul_CssClass))
Html.Append("<script>$(document).ready(function() { $("ul.sf-menu").superfish({pathLevels: 1,");
else
Html.Append("<script>$(document).ready(function() { $("ul." + Main_ul_CssClass + "").superfish({ pathLevels: 1,");
Html.Append("delay:" + _AnimationDelay + ",");
Html.Append(_AnimationType + ",");
Html.Append(_AnimationSpeed + ",");
Html.Append("dropShadows: " + DropShadow.ToString().ToLower() + ",");
Html.Append(@"autoArrows: " + AutoArrows.ToString().ToLower() + "});});</script>");
#endregion
if (string.IsNullOrEmpty(Main_ul_CssClass) && VerticalOrHorizontal == VerOrHor.Vertical)
Html.Append("<ul class="sf-menu sf-vertical sf-js-enabled sf-shadow" id='sample-menu-1'>");
else if (String.IsNullOrEmpty(Main_ul_CssClass))
Html.Append("<ul class="sf-menu sf-js-enabled sf-shadow" id='sample-menu-1'>");
else
Html.Append("<ul class="" + Main_ul_CssClass + "" id='sample-menu-1'>");
foreach (MenuItem item in _MenuItems)
{
if (item == null) continue;
if (item.SubMenuItems != null && item.SubMenuItems.Count > 0)
{
Html.Append("<li" + item.li_CssClass + ">");
Html.Append("<a href="" + item.Href + "">" + item.Text.Trim() + "</a>");
ParseSubMenuItems(ref Html, item);
Html.Append("</li>");
}
else if (item.SubMenuItems != null)
Html.Append("<li" + item.li_CssClass + "><a href="" + item.Href + "">" + item.Text.Trim() + "</a></li>");
}
Html.Append("</ul>");
return Html;
}
void ParseSubMenuItems(ref StringBuilder Html, MenuItem menuItems)
{
if (menuItems == null) return;
Html.Append("<ul " + menuItems.ul_CssClass + " style="display: none; visibility: hidden;">");
foreach (var item in menuItems.SubMenuItems)
{
if (item == null) continue;
MenuItem Sub_MenuItem = item as MenuItem;
WebControl webControl = item as WebControl;
if (Sub_MenuItem != null)
{
if (Sub_MenuItem.SubMenuItems != null && Sub_MenuItem.SubMenuItems.Count > 0)
{
Html.Append("<li" + Sub_MenuItem.li_CssClass + ">");
Html.Append("<a href="" + Sub_MenuItem.Href + "">" + Sub_MenuItem.Text.Trim() + "</a>");
ParseSubMenuItems(ref Html, Sub_MenuItem);
Html.Append("</li>");
}
else if (Sub_MenuItem.SubMenuItems != null)
Html.Append("<li" + Sub_MenuItem.li_CssClass + "><a href="" + Sub_MenuItem.Href + "">" + Sub_MenuItem.Text.Trim() + "</a></li>");
}
else if (webControl != null)
{
Html.Append("<li>");
webControl.EnableViewState = true;
this.Controls.Add(webControl);
webControl.EnableViewState = true;
StringBuilder sb = new StringBuilder();
sb.Append("<div>");
using (StringWriter sw = new StringWriter(sb))
{
using (HtmlTextWriter textWriter = new HtmlTextWriter(sw))
{
webControl.RenderControl(textWriter);
}
}
sb.Append("</div>");
Html.Append(sb.ToString());
Html.Append("</li>");
}
}
Html.Append("</ul>");
}
#endregion
}
}
MenuItem.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.ComponentModel;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Collections;
namespace MenuServerControl
{
[DefaultProperty("SubMenuItems")]
[ParseChildren(true, "SubMenuItems")]
[TypeConverter(typeof(ExpandableObjectConverter))]
public class MenuItem : INamingContainer
{
#region Fields
ArrayList _SubMenuItems;
string text = "";
string href = "#";
string _ul_CssClass = "";
string _li_CssClass = "";
#endregion
#region Properties
[Description("متن منو آیتم")]
[DefaultValue("")]
[NotifyParentProperty(true)]
public string Text
{
get
{
return text;
}
set
{
text = value;
}
}
[DefaultValue("#")]
[Description("<a /> href attribute")]
[NotifyParentProperty(true)]
public string Href
{
get
{
return href;
}
set
{
href = value;
}
}
[DefaultValue("")]
[Description("<ul /> css class")]
[NotifyParentProperty(true)]
public string ul_CssClass
{
get
{
if (string.IsNullOrEmpty(_ul_CssClass)) return "";
_ul_CssClass = " class="" + _ul_CssClass + """;
return _ul_CssClass;
}
set { this._ul_CssClass = value.Trim(); }
}
[DefaultValue("")]
[Description("<li /> css class")]
[NotifyParentProperty(true)]
public string li_CssClass
{
get
{
if (string.IsNullOrEmpty(_li_CssClass)) return "";
_li_CssClass = " class="" + _li_CssClass + """;
return _li_CssClass;
}
set { this._li_CssClass = value.Trim(); }
}
[Category("Behavior")]
[Description("The MenuItems collection")]
[DesignerSerializationVisibility(DesignerSerializationVisibility.Content)]
[PersistenceMode(PersistenceMode.InnerDefaultProperty)]
public ArrayList SubMenuItems
{
get
{
if (_SubMenuItems == null)
_SubMenuItems = new ArrayList();
return _SubMenuItems;
}
}
#endregion
}
}
You can download the project from here.
I am fairly new to the asp.net and experimenting with it to learn the page life cycle. Here is a problem that I have been unable to resolve for past few days.I have a hosting page (.aspx). Then I have two user controls (.ascx). The page has a place holder control in which it loads the user controls one at a time based on the application flow. First user control is loaded on application start up. It has a "continue" button. Continue button click loads the Second user control that has two buttons - "Back" and "Submit". Obviously the "Back" button should load the first user control again and Submit button should submit the form data.
View 3 RepliesHere's an odd one that I've never seen before. Only on IIS, not in Cassini but in all web browsers I have a button that posts back and the page_load event fires, but the actual button click event doesn't fire. there is no re-writing of the page or anything else happening.
View 4 RepliesI have a button like this:
<asp:Button ID="btnSave" runat="server" ClientIDMode="Static" Text="Save" OnClientClick="return ConfirmSave();" OnClick="btnSave_Click" />
If I write my client function like the following, it works as expected:
function ConfirmSave()
{
return confirm('Confirm?');
}
But I should check, inside the function, for the confirm result, like this:
function ConfirmSave()
{
if (Page_ClientValidate('validationGroup'))
{
var conf = confirm("Confirm?");
if (conf)
{
$('#btnSave').attr('disabled', 'disabled');
}
return conf;
}
else
return false;
}
Doing this, the page postback but the server click event doesn't fire.
I have a LoginView element in an Update panel and use JQuery to hide the div containing the update panel when the cancel button(Html) is clicked.
It works fine normally. However, when I enter an invalid password and there is an error message displayed, the Javascript attached to the Cancel button click stops firing.
[code]....
I dont know what happened but none of my buttons or linkbuttons causes a postback anymore. I have dragged a few updatepannels on the page but the linkbutton concerned is not enclosed within an update pannel. when I click it there is just no postback happening anymore. I set the debugger at Page_load but...its not reached. I used firebug to analyse the http requests. there is none. its like those are not considered buttons anymore.
View 5 RepliesI have a modalpopup that i have opening on a radiobutton selection. That works great, opens when it should and closes when you click cancel. BUT i have the following on my cancel button event that is not firing
[Code]....
I also have a button event for my "OK" button and that works great, but my cancel event doesnt seem to fire or work. Maybe the ClearSelection() is not what i need..
I want to clear the radiobutton if they cancel out of the ModalPopUp so they can make a new selection, since its a required field.
I am fairly new to the asp.net and experimenting with it to learn the page life cycle. Here is a problem that I have been unable to resolve for past few days.
I have a hosting page (.aspx). Then I have two user controls (.ascx). The page has a place holder control in which it loads the user controls one at a time based on the application flow. First user control is loaded on application start up. It has a "continue" button. Continue button click loads the Second user control that has two buttons - "Back" and "Submit". Obviously the "Back" button should load the first user control again and Submit button should submit the form data. Pretty simple.
The problem is that the command button event handler that I have on the second user control is not firing the first time. (I have one event handler for both buttons). The load event of the user control fires but then it ignores the button click. If I click it again, then it fires. I re-load the controls on the page in every page_load. Here is some relevent code:
AddPlayer.aspx:
[Code]....
The page_Load fires every time but "CommandBtn_Click" doesn't fire after the first click. I have to do it click it again. It doesn't matter which order I click the buttons.
i have two nested gridview inside an update panel. there is a button called btnPhoneEdit inside the child grid view. when the button gets clicked, it do cause partial post back as expected but it fails to invoke btnPhoneEdit_Click.
here is how my grid view looks like and how i add my custom data source to both parent and child grid view.
[Code]....
[Code]....
Background: I am customizing an existing ASP .NET / C# application. It has it's own little "framework" and conventions for developers to follow when extending/customizing its functionality. I am currently extending some of it's administrative functionality, to which the framework provides a contract to enforce implementation of the GetAdministrationInterface() method, which returns System.Web.UI.Control. This method is called during the Page_Load() method of the page hosting the GUI interface.
Problem: I have three buttons in my GUI, each of which have been assigned an Event Handler. My administration GUI loads up perfectly fine, but clicking any of the buttons doesn't do what I expect them to do. However, when I click them a second time, the buttons work.
I placed breakpoints at the beginning of each event handler method and stepped through my code. On the first click, none of the event handlers were triggered. On the second click, they fired.
Example of Button Definition (within GetAdministrationInterface)
[Code]....
So I followed Scot Mitchell's tutorial from asp.net/learn on adding a checkbox column to be able to select multiple entries and delete them with the click of a button. When I make my selection and click the button it works on the database end, as the desired entries are deleted. However, the entries remain on the page after it reloads. if I refresh the page it's updated properly but I'd like it to automatically update after the button is clicked.
Also, I tried his method for adding check/uncheck all buttons to the top of the gridview and they don't seem to be working either.
Here's the code behinf from the gridview page:
[Code]....
TextBox doesn't fire TextChanged Event on IE 8, AutoPostback is true
View 6 RepliesI am working on an ASP.NET web application using .net 4.0 and VS2010.
I have a GridView and I am appending a row at the bottom to allow users to input data for "Adding" a new record.
The ONLY way I have found for this to work is to do this in the RowDataBound event of the grid. I can check to see if it is about to process the footer row then I know I am at the bottom and can insert this new row.
The row I am inserting contains a couple of TextBoxes and a LinkButton for the "Add" link.
If I just drop a LinkButton on my form and hook up the click event and I click the link button then the first thing that fires is the Page_Load event then my click event. However what is happening when I click the link button that was dynamically added to the GridView is the Page_Load event fires but the click event never does.
I have read 1000 threads saying to try to create the controls in the preinit() or some other event. In my case I can't. Or else someone would have to explain how to add the row to the bottom of the databound GridView.
Here is my code: (I removed creating the Textboxes because that is not part of the problem.
[Code]....
Why with LinkButton doesn't work postback with IE7 and work with FW3.+ when site work on IIS7?
View 3 Replies