I am trying to create a User Control that accepts a generic List of CustomObject as a bindable property.
I'd like it to look a little somthing like this :
TabularReport.ascx
[Bindable (true)]
public IList<T> Source
{
get;
set;
}
protected void Page_Load(object sender, EventArgs e).........
When I add a user control which has bindable properties to an asp.net page I do not see its bindable properties on the designer's dialog box when I click the edit Data bindings on the Repeater-Listview
Code:
Imports System.ComponentModel
<System.ComponentModel.DefaultBindingProperty("Text")> _
Public Class UserControls_ucSpecialTextBox
Inherits System.Web.UI.UserControl
...
<EditorBrowsable(EditorBrowsableState.Always), _
[Code] ....
I want to create a web method that accepts a List of custom objects (passed in via jQuery/JSON). When I run the website locally everything seems to work. jQuery and ASP.NET and everyone is happy. But when I put it on one of our servers it blows up. jQuery gets a 500 error after the ajax request with the response being:
System.InvalidOperationException: EditCustomObjects Web Service method name is not valid.
[WebMethod]
public void EditCustomObjects(int ID, List<CustomObject> CustomObjectList)
[code]...
I am using: .NET 2.0, VS2005
I customized a button from System.Web.UI.WebControls.Button (it is a Custom Control, NOT an User Control, no ascx file)the intention is to adding a OrderID property to the button, that can be bound to a datasource field.
Here is how this control is used in a aspx page:
[Code]....
Here is my definition of the MYButton class, it saved in a .vb file and placed in App_Code folder
[Code]....
Here is the code trying to use the OrderID in btnSave_Click()
[Code]....
The problem is OrderID is always returned as 0.
When first time page is loaded, and gridview is bind to a data source, I step through the code, and the OrderID property are set correctly, but after the postback caused by the button, the OrderID value has lost.
I'm attempting to create a simple menu user control just as outlined here.
The attached code results in an "Object reference not set to an instance of an object" error, but I can't figure out why.
<%@ Master Language="VB" CodeFile="MySite.master.vb" Inherits="MySite" %>
<%@ Register src="Controls/Menu.ascx" tagname="Menu" tagprefix="my" %>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">......
I created user control. It has string[] public property (it may be List<string> or whatever). I want to support defining this property in aspx code, when declaring the instance of this usercontrol. Something like this:
<uc1:MyControl ID="MyControl1" runat="server">
<MyStringCollectionProperty>
<string>My String 1</string>
<string>My String 2</string>
[code]...
I have the following Students class:
[Code]....
I need the 1 since it's a foreign key in another table. For the life of me, I can't get this to work like this.
What s the best way to implement a method that creates and assings ID s to user on a asp.net application?
I was thinking about using DateTime ticks and thread id
I wanna make sure that there is no collision and user ids are unique.
ID can be a string or long.
should i use MD5 on some information that i collect from user? what would that be?
I have seen that md5 collision rate is very low.
i am receiving the follwing error when i am invoking a custom object "Object of type 'customObject' cannot be converted to type 'customObject'." Following is the scenario when i am getting the error i am invoking a method in a dll dynamically. Load an assembly
CreateInstance.... calling MethodInfo.Invoke() passing int, string as a parameter for my method is working fine => No exceptions are thrown. But if I try and pass a one of my own custom class objects as a parameter, then I get an ArgumentException exception, and it is not either an ArgumentOutOfRangeException or ArgumentNullException. "Object of type 'customObject' cannot be converted to type 'customObject'."....................
I need to create a textbox that accepts only numeric values. If the user presses a string in the textbox an alert message should be displayed.The user should not be able to type other characters Users should be displayed a instant message when character other than numeric is pressed
View 3 RepliesI've got a web site that has a master page and that master page (mpMaster that has a user control ucControl1) which has a sub user control (ucControl2), this user control has a property which accepts a value. Now, I have a page that uses the master page
and on this page I have another user control (ucPageControl), I need to find a way of setting the value in ucControl2 from ucPageControl. Is this possible at all?
We're modifying an existing ASP.NET application. We added a Terms and Conditions page with an "Accept" button that stores that choice in the user's account data. We want to prevent the user from accessing any page when the user has not accepted the Terms and Conditions.
I think we want to do this by looking up the "accepted terms" value upon login and storing it in the session. Then we need to intercept every request and check for that session value. (If it's not there, we redirect the user to the Terms and Conditions page.)
Is the PreRequestHandlerExecute method the right place to put this check? This method also gets called on requests for stylesheets and images, so it doesn't seem like it was intended for this purpose.
I am building a usercontrol which can display data with many flags. I would like to be able to able to declare it this way, or something similar to that from the asp.net page
<ctl:DisplayItem runat="server" id="ctlTest">
<flags>
<flagIsAvailable />
[code]...
For reasons outside my control I have a table containing input and select fields built using regular HTML with the runat="server" attribute (as opposed to standard ASP.NET controls). I am trying to set a value to be selected when the page is loaded based on values being passed from the Session (again, factor outside my control).
Setting the Selected property of the list item does nothing and doesn't select the item in question. How do I achieve this?
The code is basically this (names generic-ized):
HtmlSelect dropdownList = ((HtmlSelect)myTable.Rows[0].Cells[5].FindControl("DropdownList");
DataSet allListItems = this.GetDefaultListItems();
foreach (DataRow row in allListItems.Tables[0].Rows) [code]....
the Select portion doesn't work, although it gets executed on the proper item. Should this code be called in a specific event? I believe it's being called in Page_Load; should it be called in Pre_Render instead?
In Asp.net Web forms why must a user control be partial? I tried to remove the partial keyword and it says: Missing partial modifier on declaration of type 'test'; another partial declaration of this type exists
Where is the other declaration?I am trying to pass a generic type with the user control how can I do that? I can't unless I change the other declaration too. I couldn't find it so I removed the partial keyword.Note:
you do have 3 files if your making WebApplication but if your making website you only get 2 files?
UserControl.ascx
UserControl.ascx.cs
so in website where is the other declaration?the reason i want generic is because im making a Grid User Control so i want to pass the type the datasource is going to have.
I have a user control which has a Gridview and a listview, I want to make this control generic so that I can just pass the type of the class I want to edit, which would be a linq entity, and then it would automatically do the rest, so far I havent had any success and I was wondering if anybody knows a tutorial or some info about doing this?
View 1 RepliesIs there a generic control that can be added to all aspx pages that checks for silverlight plugin and the version.. I know there is javascript and the silverlighthost object tag that accomplishes this. Is there an existing ascx control that wraps this functionality ? I need to be able to set the path to the xap on each page (via a property on the ascx control).
View 2 RepliesI am trying to query a DB and get a list of users based on a specific boolean property stored in the aspnet_profile for that user. I am aware that it wasn't possible a few years ago [URL] but was wondering whether that had changed in recent releases, or it was still not possible without trawling through the entire list of users and testing them one by one. (My DB may become way to big for that.)
View 3 Repliesi have 2 user control : uc1 and uc2. and i have button in uc2 i call button1, i want to set commandArgument of button1 from uc1, how can i do this?
View 5 Replies is possible to create another property like 'userid' as i can access like
HttpContext.Current.User.Identity.userid ? if yes , how? (actualy last year i did something like this but i have forgotten
I have a situation where I'm iterating through all the controls on a form, specifically looking out for any of these three types of controls: Labels, TextBoxes, CheckBoxes
I can, of course, get the type of the control and then use a Switch-Case construct to cast labels as Labels, textboxes as TextBoxes, and checkboxes as CheckBoxes.
But I'm wondering if there's a way to do something with one or two lines of code to gain access to the Text property of each of these controls?
I am trying to set property value using reflection as below. I wanted to know if there is any generic way of finding the property type instead of doing it int he below way.
string currentlblTxt;
string currentTxt;
Assembly assembly = Assembly.GetAssembly(typeof(myAdapter));
myAdapter currentEventObject = (myAdapter)assembly.CreateInstance(myClassName);
[code]...
i built a user control and i want to make one of its properties as a must, that's mean if you not supply this control when you create the control the project won't be compile, just like if you omit the runat="server" property.
View 17 RepliesI have a user control that has the following property
public string ReportID
I created one web user control with property named "ReadonlyField" with boolean datatype. I am able to use in my web pages and now i wanted to add a description to that property so that i dont need to explain each time to my team member what is that property's intention.
I got following snippet in c# but didnt find any equivalent in vb.net and also not sure whether it will work or not.
[Description("My Description")]
public int MyIntProperty
{
get {..}
set {..}
}