set property values to user control before loading it.

Question

User-1231945312 posted

Hi,

 I created a user control(not custom control) and before calling loadcontrol method to display this user control, i would like to set values to this usercontrol such as the code below

userControl.Property = "20"
Page.LoadControl("userControl.aspx");

 But obviously,the code above wont work.Is there any way that i can do this?

Many Thanks

Answer 1

User-667042492 posted

hi,

in your usercontrol class you must define properties.. for example;

private string name;

public string Name {

get {return name;}
set {name = value;}

}

and in your page,

userControl.Name = "myname";

i hope this help you..

Answer 2

User-1231945312 posted

I already tried this code but it doesnt work.

I need to set value to the property before the user control is loaded by Page.LoadControl() method. And i dont know how i can do that.

Answer 3

User-442214108 posted

First off, it needs to be an ASCX file, not an ASPX, if it's a user control

Then try something like this:
Dim myControl as Control=CType(Page.LoadControl(FullPath with .ascx extension), Control)         
myControl.Property="20"
 Yourcontainer.Controls.Add(myControl)

Answer 4

User-16411453 posted

  
myControl.Property=[Text]

 

<Bindable(True), Category("Appearance"), DefaultValue(""), Localizable(True)> Property Text() As String
        Get
            Dim s As String = CStr(ViewState("Text"))
            If s Is Nothing Then
                Return String.Empty
            Else
                Return s
            End If
        End Get

        Set(ByVal Value As String)
            ViewState("Text") = Value
        End Set
    End Property
 

Answer 5

User-1231945312 posted

Ok,Thanks very much. i will try this one.

Answer 6

User-1231945312 posted

i just tried your solution.but it doesnt solve my problem. Is there a way to set this property inside Page.LoadControl(FullPath with .ascx extension)?

Because if this property is not initialized, the class will be not able to be loaded or instantiated by Page.LoadControl(FullPath with .ascx extension)

Answer 7

User-1407570774 posted

Hi there,

MyUserControl.ascx:

1    using System;
2    
3    namespace WebApplication1
4    {
5    
6        public partial class MyUserControl : System.Web.UI.UserControl
7        {
8    
9            public MyUserControl() { }
10   
11           public MyUserControl(string text)
12           {
13               this.Text = text;
14           }
15   
16           public string Text
17           {
18               get
19               {
20                   object text = ViewState["Text"];
21                   return text != null ? text.ToString() : string.Empty;
22               }
23               set { ViewState["Text"] = value; }
24           }
25   
26           protected void Page_Load(object sender, EventArgs e)
27           {
28               Response.Write(this.Text);
29           }
30   
31       }
32   
33   }

Default.aspx:

1    using System;
2    using System.Web.UI;
3    
4    namespace WebApplication1
5    {
6        public partial class _Default : System.Web.UI.Page
7        {
8            protected void Page_Load(object sender, EventArgs e)
9            {
10               MyUserControl myuc = (MyUserControl)Page.LoadControl(typeof(MyUserControl), new object[] { "This is test..." });
11               this.Controls.Add(myuc);
12           }
13       }
14   }
  

Answer 8

User-16411453 posted

Sorry about that.  I gave you a server control solution.  Did not really notice your working on a user control. 

You should try the user control forum for better info.  I've never made one, so I have no clue.

 

Answer 9

User1075616431 posted

 Can you do this:

 Public Property something() As String
            Get
                If ViewState("something") Is Nothing Then
                    Return ""
                End If
                Return CType(ViewState("something"), String)
            End Get
            Set(ByVal Value As String)
                ViewState("something") = Value
                doSomething(Value)
            End Set
        End Property

        Protected Sub doSomething(ByVal something As String)

        End Sub