C# - User Control Access From Code Behind
Dec 22, 2010
I have a user control called adminMenu and I use it in my index.aspx and all is fine, but I need to access a MenuItem in adminMenu and need to change NavigateUrl on the MenuItem. Tried this code with no luck:
MenuItem MaintenanceReports = this.adminMenu.FindItem("MaintenanceReports");
Not sure if I should be accessing adminMenu properties from controls code behind, but when I try from controls code behind was not able to access it either.
View 2 Replies
Similar Messages:
Jun 11, 2010
I have to access the parent form's controls inside an event handler method on my user control's code behind.
View 4 Replies
May 14, 2010
I'm trying to access a user control from my .vb code behind file. I am actually trying to access a button on that user control page.
View 7 Replies
Jun 27, 2010
I have an asp.net 3.5 WebSite application where I have a bunch of UserControls.
In some scenarios I have a reference of type Control (System.Web.UI.Control) that I need to cast to a specific User Control type (to access public properties and methods of the User Control).
The User Control classes are all declared in "the global scope", i.e. not within a namespace. However, for some reason, only some of my User Controls is possible to type in a code file and show up in intellisense and some just wont. In one scenario I could write the cast in code anyway and the site would build (but the UserControl type name did not shift in to the ordinary class name color (light green, you know) in VS text editor), but when running the page I still get the error message about missing using directive or a reference...
If I use the VS 2010 "Navigate to" feature (Ctrl+,) and search for a type I usually get one hit for the Type/Class name and another for the actual file. When searching on my User Control class names I only get the file hits, no class representation. This even goes for those User Control types I actually can access in code.
I've tried to compare the User Control classes that work and doesn't work, but I can't find any difference, they are all declared as public partial.
View 2 Replies
Nov 9, 2010
I want to use a couple of instances of the same control on a page. The user control is intended to display a list of records in a repeater. The aim is that the second control will show a list excluding the IDs in the first control The control has a number of public properties, including IDsInThisList, and IDstoExclude. The query will exclude the IDs in the second property.
What I would like to do is get the record IDs from the first instance of the control (IDsInThisList), and pass them to the second contro as the IDsToExclude.
I have a test page where I am setting the properties of the controls in code. As you might guess, it's not working! The first control displays the top 3 items, as desired, but the second display the records 1-7, rather than records 4-10 because it is not receiving the IDstoExclude from the first control When I response write the IDstoExclude from the first control in my testpage, the string is empty. (if I do it from within the control, it shows the IDs)
How can I get the controls to fire in order and pass values to each other?
Screen grab of test page + uc and test page code attached
[Code]....
View 5 Replies
Jul 28, 2010
I have a requirement where i need to access the methods of one user control in another user control.
View 8 Replies
Jun 3, 2010
I have several checkbox controls on my web form that are not server controls (runat="server") How can I access these controls form my C# code? Can this be done with document.GetelementById from the server side using C#? Or some other technique?
I am not allowed to make these server controls (runat=server) because of a requirement.
View 4 Replies
Feb 2, 2010
I've wrote a custom membership provider and a custom membership user. So far so good, I can create users / login etc, but when I try to access the custom membership user in code like this;
Code:
Public Function GetOpportunities() As IQueryable(Of Opportunity)
'Dim p As CiseroMembershipProvider = System.Web.Security.Membership.Provider
'Dim _User = p.GetUser(System.Web.HttpContext.Current.User.Identity, True), CiseroMembershipUser
Dim _User As Curve.CiseroMembershipUser = Nothing
_User = System.Web.Security.Membership.GetUser() 'Dim _CurveUser As New CiseroMembershipUser
'Return From o In Me.ObjectContext.Opportunities Where o.ClientID = User.ClientID
Return From o In Me.ObjectContext.Opportunities Where o.ClientID = _
_User.ClientID Order By o.ModifiedDate Descending
End Function
I get this error:
Unable to cast object of type 'CustomMembershipUser' to type 'Curve.CustomMembershipUser'. When I put a quickwatch on the object System.Web.Security.Membership.GetUser() it is of type CustomMembershipUser. The quickwatch window generates the text DirectCast(System.Web.Security.Membership.GetUser(), CustomMembershipUser) when I click onto the properties, but reevaluating the expression raises the error.
View 3 Replies
Apr 15, 2010
[Code]....
I am a asp.net learner. I have got seven textbox and a button on the page. I should be able to write text in the textboxes and save them in access database. I can run it OK, but when I write something in the texboxes and try to save it I get the following error.
'OleDbException was unhelded by user code'
also the following,
'Could not find file C:mohammadpweb_devcustomer.mbd'
View 37 Replies
Sep 1, 2010
I have an ASP.NET 4.0 application with some simple user controls. The user controls work fine on the design surface (VS.NET 2010), but when they're loaded during application execution, nothing shows up.
Futhermore, the various child controls of the user controls are null when referenced inside the code behind for the user control.
The code behind for the user control executes as expected, but any reference to child controls are null.
It's like ASP.NET is never parsing the ASCX to create the instances of the child controls.
View 4 Replies
Jul 21, 2010
I have a ASP.Net project that is setup in such a way that it can be dropped into any site and "just work." All the paths are relative to the current file, not relative to the "~". The paths are determined by ThePath = this.TemplateSourceDirectory;
This is working for everything expect registering a custom control that is created and added to one of the pages. I can add the control just fine with the Page.LoadControl but I cant cast it as the correct type to access anything.
How can I add a reference to the class from within the code itself?
View 2 Replies
Dec 11, 2010
How can I access a webform control from a Web User Control?
I have a web form with some textboxes and dropdownlists. I created a Web User Control with other controls (other textboxes) inside it. Now I need to call from the web control source code the values that the controls in my web page have. How do I do it?
View 10 Replies
Apr 15, 2010
I want to access a label in templated user control.
I find this code in internet, but it doesn't work.
Error:Object reference not set to an instance of an object.
public static Control FindControl(Control parent, string id)
{
Control recurse;
if (parent.ID == id)
[Code]....
View 4 Replies
Mar 1, 2010
i have a Wizard control with 3 steps, in step 2 i have a formview, inside formview1 a have a label and a button.
When i click the button i would like the label to over wright the text of the label.
how can i access this label.
i tryed this with no success.
[Code]....
View 4 Replies
Apr 28, 2010
my application runs on the client side. I have to access a display on the asp page via javascript. I have the following code working properly:
ClientSript.RegisterStartupScript(this.GetType(), "allMessages", "<script>document.forms[0].tbDisplay.value='Messages'; </script>");
tbDisplay is a "text box" asp:textbox control. I need to replace de 'Messages' for avariable. so instead of printing "Messages" all the time, I can change the information on the variable prior to display the message. how to change 'Messages' to a variable.
View 5 Replies
Feb 18, 2010
I have a .aspx page that inherits from a class (Hmp.Web.Lib.HmpWebPage which actually inherits System.Web.UI.Page) . The code behind for my page starts like this.
public
partial
class
FnmMessagesEdit : Hmp.Web.Lib.HmpWebPage
and the markup is
<%
@
Page
Title=""
Language="C#"
MasterPageFile="~/MasterPages/HampMaster.master"
MaintainScrollPositionOnPostback="true"
AutoEventWireup="true"
CodeBehind="FnmMessagesEdit.aspx.cs"
Inherits="HMP.Web.features.FnmMessagesEdit" %>
My problem is that I have a textbox with the following markup ,but cannot access the textbox from codebehind
<asp:TextBox
ID="txtTitle"
runat="server"
Width="236Px"></asp:TextBox>
Also I am using Telerik controls on my page .Do you think that it is the problem?
View 7 Replies
Aug 12, 2010
I have a code to link to sql can anyone give me the same code for microsoft access....
try
{
int videoID = Convert.ToInt32(Request.QueryString["ID"]);
SqlConnection conn = new SqlConnection("server=WEBDESIGN-PC;database=Credentials;uid=sa;pwd=Azeem;");
conn.Open();
SqlCommand cmd = new SqlCommand("SELECT * FROM videopath WHERE videoID=" + videoID, conn);
SqlDataReader dtr = cmd.ExecuteReader();
dtr.Read();
FlashVideo1.VideoURL = Convert.ToString(dtr["Filepath"]);
Label1.Text = Convert.ToString(dtr["Filename"]);
conn.Close();
}
catch (Exception ex)
{
Label1.Text = Convert.ToString(ex);
}
finally
{
}
View 2 Replies
Jan 19, 2011
i have a usercontrol named filebox (which wraps a fileupload and some related stuff) in a certain .net class i have need to use this type as a ctype but i cant seem to call ctype(aobject,filebox) or either ctype(aobject,Controls_filebox) (which is the correct name) how can i convert an object to this type?
View 1 Replies
Feb 7, 2011
I have a couple user controls that are loaded by a Select Case statement. However, in the behind code file for the main page that loads these controls, none of the asp controls show up in intellisense. I had a feeling it's because the controls are loaded conditionally. My question is what is the best way to solve this?
1) Load the controls and do a Select Case in the behind code to make them hidden or not.
2) Is there a way to say (psuedocode): LoadUserControl("UserControl1").Controls("tbTest").Text = ""
3) How can I pass a dataset to the User Control file?
[Code].....
View 1 Replies
Jan 26, 2011
I have a form in a user control on an aspx page (in masterpage ofc) and when i post this form (using javascript) i want the page to refresh so that the new values posted in the uc will show.My friend said I could use <%=Model.Item.GetUrl() %> but it redirects me to only the user control and not the aspx page. How can I access the Model from the aspx page and not from the uc?
View 4 Replies
Mar 20, 2010
I have to access my html control and get its value from my server-side code. Is there anybody who could suggest how I could do it?
My html control is very simple: <input type=text>
But the thing is: I can't make it <input type=text runat=server> cause in this case my jquery functionality (datepicker) does not work.
View 4 Replies
Jul 22, 2010
I want to access my checkbox in code behind. I have my checkbox in my aspx file like this:
[Code]....
And i'm trying to set the checkbox visible=false like this but it's not working. Error message: Object reference not set to an instance of an object.
[Code]....
This is just one thing i want to do with my controls in my datalist, so i don't want to in my aspx file like this:
<asp:CheckBox ID="CheckBox1" runat="server" Visible='<%# if(Eval("isFolder")="1","false","true") %>' />
Because i have quite a lot of things i would like to do in the code behind when i'm getting my files..
Is it possible somehow to achieve this without having to put servercode in my aspx file?
View 8 Replies
Dec 30, 2010
I have DropDownList inside User Cotrol and i use this User Cotrol in my asp Page , in my page i have method that take paramter string
now i want to access the the DropDownList SelectedIndexChange from my page to execute the method by passing the DropDownListSelectedValue
(when user selecte value in dropdown list ,when it post back i watn to excute the method depent on value of selecte value )
View 2 Replies
Apr 2, 2010
how to access a property on my parent page from a user control?
View 2 Replies
Apr 18, 2010
I have a footer that I am adding to a masterpage. Within this footer, if constructs menus based on the Current Node of the sitemap, however the sitemap is coming back as null. how to fix this issue.
View 2 Replies
