I have a usercontrol (ascx) with a DropDownList placed on a MasterPage. It has AutoPostBack=true. I created a SelectedIndexChanged event for the dropdown on the usercontrol, but it does not fire when seleted item changes. The PostBack fires and both current page as well as MasterPage are reloaded but the SelectedIndexChanged is not fired. How can this event be trapped?
View 8 RepliesThis is page load
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{ [code]...
But in my ascx.cs when IButton1_Click is trigered My name is null
private string _sname;
protected void Page_Load(object sender, EventArgs e)
{ [code]...
I have MainLayout.master that has UC_Menu.ascx on it.
I have a page named Customer.aspx that uses MainLayout.master. Customer.aspx also contains a UserControl named UC_Details.ascx.
How can I have UC_Menu.ascx call a function that is in UC_Details.ascx with this scenario?
I've seen a few similar examples, but none that match this type of layout.
I use a masterpages with 3 buttons at the end of the file because al these buttons must be displayed in all content pages. Now I want to call the button_click event in all content pages because the event will be different for each contentpage. My question: How can I call events from controls in the masterpages, in the contentpage?
View 1 RepliesI was watching earlier some of video's which i have Downloaded about Master Page Event's,i was reading how we can call the Control Event's on Master Page from Content Page.Now I want the OutPut as-Response.Write(RadioButtion1.SelectedValue).wht ever value i select
Following is Code'
Enum
[Code]....
Public Class
[Code]....
Delegate
[Code]....
My Master Code Behind
[Code]....
My Master Page Source
[Code]....
Default Page Code Behind
[Code]....
Screen Shot
[IMG]http://i52.tinypic.com/2vl3znk.jpg[/IMG]
I have a Masterpage which contains two contentpalceholder, first one for a Usercontrol and second one for my web forms.
Now I want to change the usercontrol's property of sqldatasource from out side of usercontrol such as some web forms. Can I access objects of usercontrol from the other web forms or masterpage?
I have the problem that when i´m adding my usercontrol to my default page the events do not fire. I already know that I had to add the usercontrol as soon as possible to the lifecycle, but I can´t because I know the number of buttons after clicking on my default button.
code:
my default.aspx.cs page
protected override void OnInit(EventArgs e)
{
if (!IsPostBack)
{
addPruefstation aP = (addPruefstation)this.LoadControl("addPruefstation.ascx");
aP.ID = "ucPruefstation";
Session["ucPruefstation"] = aP;
}
base.OnInit(e);
}
protected void bApply_Click(object sender, ImageClickEventArgs e)
{
int anz;
Int32.TryParse(((TextBox)tablePruefstand.FindControl("tbPruefstandstationen")).Text, out anz); //here i´m getting the number of buttons
Session["anzStation"]=anz;
addPruefstation aP = (addPruefstation)Session["ucPruefstation"];
aP.anz = anz;
Session["ucPruefstation"] = aP;
phPruefstation.Controls.Add(aP);
}
my usercontrol.acsx.cs:
public int anz;
protected override void OnInit(EventArgs e)
{
for (int i = 0; i < anz; i++)
{
tcButton=new TableCell();
trPruefstation = new TableRow();
tcEmpty = new TableCell();
tcLabel = new TableCell();
tcTextbox = new TableCell();
tcLabel.Controls.Add(new LiteralControl("Anzahl Leaks"));
tcTextbox.Controls.Add(new TextBox() { ID = "Leak" + i, Text = "0", AutoPostBack = false });
ImageButton imgButton = new ImageButton() { ID = "" + i, ImageUrl = "~/Img/1rightarrow-256.png", Height=15};
imgButton.Click += new ImageClickEventHandler(imgButton_Click);
tcButton.Controls.Add(imgButton);
trPruefstation.Cells.Add(tcEmpty);
trPruefstation.Cells.Add(tcLabel);
trPruefstation.Cells.Add(tcTextbox);
trPruefstation.Cells.Add(tcButton);
tablePruefstation.Rows.Add(trPruefstation);
}
base.OnInit(e);
}
void imgButton_Click(object sender, ImageClickEventArgs e) //this event never be fired
{
throw new NotImplementedException();
}
for my dynamic user control, i am trying to do any event from that control (delete, update .... etc) but it disappeard when i make any event! this the code in the page to load it dynamically:
[Code]....
I have a user control which I load dynamically using LoadControl. In this UserControl I have a button with assigned OnClick event, but when I click that button, the event is not fired. I'm populating the user control in UpdatePanel's Load event (I invoke __dopostback from JS).
[Code]....
Here I load user control in the page
[Code]....
I have a login.ascx control with three controls (LoginName, Password and btnLogin) , I want to rase a click event on this button from .aspx page because some restriction is there so that I am unable to write any code on .ascx page.I am bale to put loginName and password on .ascx by using query string but unale to raise event.
[Code]....
I have recently updated from web developer 2008 express to 2010 and notice that the drop down for server objects & events that is included in the 2008 edition does not seem to exist in this edition. I have tried all the settings and switched on Experts settings and imported all the expert settings but to no avail.Is there a different way to select events in 2010 version (I was using it to import procedures mainly for validation).
View 2 RepliesI have the following situation:
A MasterPage MyMaster.Master
A Content Page Content.aspx
A UserControl MyUserControl.ascx
MyUserControl.ascx is being used in Content.aspx and is being added programatically. The content page is using MyMaster.Master
MyMaster.Master has a variable which I can access from Content.aspx as I have the @MasterType directive set. What I am wanting to do is the following:
1) Set a value in MyUserControl.ascx
2) Access value from Content.aspx
3) Set value in MyMaster.Master
Step 2 is implemented in the PageLoad of content.aspx as follows:
Control ucControl= LoadControl("/UserControls/MyUserControl.ascx");
UserControls_MyUserControl myUC = ucControl as UserControls_MyUserControl; [code]....
The PreRender handler just sets a value in MyMaster.Master to true. In MyMaster.Master I check that value in PageLoad and try display something if it is true. This does not work.I suspect it has something to do with the Page Lifecycle, but I cannot seem to find which part is wrong.
I've seen code to handle MasterPage events in the content Page, but if I'm loading a UserControl dynamically into the Page, can I handle the event in the UserControl instead?
Basically I have a button on the MasterPage, when it's clicked I need to make the UserControl do something, such as display text or change a value in a form.Failing that, is it possible to make an event from one dynamically loaded UserControl fire in another on the same page? I could then replace the button in the MasterPage with one in another UserControl
I have a div inside a user control that is displayed by the user after some event. I want to hide this div when user clicks anywhere elese on the page but not on the div (or not on any element that is inside the div).
If it wasn't a user control I could use body's clieck event to check the target, but because this is usercontrol that is hosted by other page I can't just "play" with it's elements. How can I achieve that without using body of the hosting page?
I have Page, MasterPage and UserControl in my project.
So I create basepage class and share some logic, then inherit from System.Web.UI.Page. My problem is I want use single basePage for any type of UI content.
I'm fetching some settings out of the database based on a value passed from a query string. Out of these settings, a few will be used in master page, few on my Page and few in my user control (say login control which is a web user control).I've an entity class MySetting for it and there is a method in my data access layer which returns me an instance of MySetting when I pass the value I got in query string.
I don't want to fetch settings from the database multiple times for one request. I'm using asp.net web forms with C# and sql server.
How can i call a page method after a usercontol finished his method / fire a parent page method from inside the user control insted?
View 1 RepliesI created a customDropdown usercontrol with Events and It worked fine.
Now I stored the path of the ascx file in the database table and i want to Load the ascx file and handle the Events dynamically in an aspx page.
To Load the usercontrol and access the public properties and method, I need to know the object i am trying to load, right?
For Example
FeaturedDDL c = (FeaturedDDL)Page.LoadControl("~/FeaturedDDL.ascx").
But I dont want to hardcode objectType "FeaturedDDL", coz i dont have that stored in my Database field.
Since I am loading the usercontrol by getting the path and name of the usercontrol from the database table,how will I know the ObjectType at that time?
How to accomplish that and also how to handle the events for these type of situation?
Senario: Masterpage with a UserControl and a child ASPX page
In the past when using this senario I've used an Interface as a way to pass a value from the UserControl (embedded in a master page) to the masterpage code behind then consume that value in the child aspx page.
My question is now that asp.net 4 have arrived is this still a good way to achieve this or is there another or perhaps better way to do it? I've read somewhere that perhaps "delegates" is perhaps another route to take.
Using in-line code in VS 2010 RC and I can't get the "server objects and Events" drop down to show up.
Not sure if this is a bug or what...in VS 2005 / 2008 it would just appear at the top of in-line code files. I've checked the options/settings menus and haven't found any way to enable it.
In VS2008 source view, the left side object dropdown is missing "Server Objects & Events", and "Server Code". I would like to know how to enable these to be visible.
The controls on the page do contain runat="server".
Does a HttpWebResponse.StatusCode detect Asp.Net errors? Mainly a yellow screen of death? Some Background: I am working on a simple c# console app that will test servers and services to make sure they are still functioning properly. I assumed since the HttpStatusCodes are enumerated with OK, Moved, InteralServerError, etc... that I could simply do the following.
WebRequest request = WebRequest.Create(url);
request.Timeout = 10000;
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
if (response == null || response.StatusCode != HttpStatusCode.OK)
{
// SERVER IS OK
return false;
}
else
{
// SERVER HAS SOME PROBLEMS
return true;
}
I found out this morning however that this doesn't work. An ASP.Net application crashed showing a Yellow Screen Of Death and my application didn't seem to mind because the response.StatusCode equaled HttpStatusCode.OK. What am I missing?
HttpWebResponse response;
try
{
response = (HttpWebResponse)request.GetResponse();
}
catch (WebException webexp)
{
response = (HttpWebResponse)webexp.Response;
}
have some Objects, lets say Employee and Role defined as below and I have defined relationships in my database that gives me a list of objects say employees and thanks to my framework each employee object also has a Role object linked via the RoleIDID, UserName, Password, Email, RoleIDRoleID, RoleNameSo in code I can do something like this
Employee emp = dataService_GetEmployeeByID(1);
string RoleName = emp.Role.RoleName;
Now here is my problemI can bind any object in a repeater and it works fine for the first level in my relationship
For instance <%# Eval("UserName") %>
But I need to be able to show the details for my child objects as well (Role) so something like this (which does not work)
<%# Eval("Role.RoleName") %>
I know how to bind a simple objects to a dropdown list. However I am having problems binding my objects which contains sub objects to the control.i.e. with simple object i just do ddl.DataValueField = "myproperty"
with my objects they contains sub objects which i want to bind. I have tried ddl.DataValueField = "sub-object.myproperty" which doesnt work.
What is the trick to doing error trapping with javascript and Ajax controls in a VB.net page?
View 1 Replies