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Rank: Devotee
Joined: 9/5/2007
Posts: 65
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Hi, I'm tring to use the usercontrol wrapper for my own custom datatype. I've started out with a little test that I can't get working! I wanted to emulate the 'Textstring' datatype. I'm using the following code.. Code:namespace ipr
{
public partial class myTextDataType : UserControl, umbraco.editorControls.userControlGrapper.IUsercontrolDataEditor
{
public string umbracoValue;
protected void Page_Load(object sender, EventArgs e)
{
if (Page.IsPostBack)
{
umbracoValue = myBox123.Text;
}
else
{
myBox123.Text = umbracoValue;
}
}
#region IUsercontrolDataEditor Members
public object value
{
get
{
return umbracoValue;
}
set
{
umbracoValue = value.ToString();
}
}
#endregion
}
} ..and the following presentation code... Code:<%@ Control Language="C#" AutoEventWireup="true" CodeBehind="myTextDataType.ascx.cs" Inherits="ipr.myTextDataType" %> <asp:TextBox ID="myBox123" runat="server"></asp:TextBox> I create the datatype just fine and it renders fine. When I type in a value and save it however nothing gets persisted. I set a breakpoint in the page load and found that on postbacks nomatter what I've typed in the Textbox the myBox123.Text is empty which explains why nothing is getting saved. Bigger question is why I don't see anything in that property on the postback (I can still see my text in the rendered webpage after the postback which is very odd!)? Any ideas? Ta!
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Rank: Newbie
Joined: 8/18/2008
Posts: 10
Location: Iowa
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Did you have to call Page_Load() or was that called for you?
I have pretty much the exact same code and Page_Load() isn't even called. I have to call it manually in OnLoad();
Oh, and I have the same problem.
-E
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Rank: Newbie
Joined: 8/18/2008
Posts: 10
Location: Iowa
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You'll probably get a kick out of this.
Since I don't know when Page_Load() is supposed to occur in the .NET page loading process (and neither does anyone else apparently), I used OnPreRender() and that fixed the problem.
From what I can tell the ASP.NET page loading process goes in this order:
".NET framework initialization" -> page initialization where OnInit() is called -> page state processing which is where state related post data is loaded -> OnLoad() is called -> all other data is loaded from the request -> OnPreRender() -> rendering
So the last possible hook to initialize your stuff is OnPreRender().
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Rank: Fanatic
Joined: 10/30/2007
Posts: 214
Location: Bellingham
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Here's a nice reference to the ASP.NET page lifecycle that I keep bookmarked: http://msdn.microsoft.com/en-us/library/ms178472(VS.80).aspx-Paul
motusconnect.com :: level-2 certified :: MVP 2008/2009
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Rank: Newbie
Joined: 8/18/2008
Posts: 10
Location: Iowa
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This problem still isn't solved. If I do all my editing OnPreRender then nothing saves to the database at all. When I do it OnLoad only non text box controls are saved.
So far I've encountered about 4 posts on this forum all asking about this and nobody gives an answer. Come on people. Someone's gotta know what's going on.
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Rank: Newbie
Joined: 8/18/2008
Posts: 10
Location: Iowa
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I didn't exactly fix the problem but I found a wacky way around it: Code:
protected override void OnPreRender(EventArgs e)
{
base.OnPreRender(e);
//Instantiate the CMS Node that you're currently on, in my case its a Media
ThisEvent = new Media(int.Parse(this.Request.QueryString["Id"]));
if (Page.IsPostBack)
{
//Do your stuff here ...
//When you're done, manually invoke save on your CMSNode
This.Event.Save();
}
}
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Rank: Newbie
Joined: 9/19/2008
Posts: 11
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Does anyone know to get the current content node from a custom datatype usercontrol? I'm stuck. Don't worry, I've already found the answer here
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Rank: Addict
Joined: 9/27/2007
Posts: 977
Location: Belgium
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Hi, Not sure if it would work, but I guess you can parse the node's id using the querystring. A custom datatype user control is intended to be used on a node, right? Have a look at left bottom corner when hovering a content node, this way you'll find out what page is requested, and more interestingly, what querystring will be used to build the page on which the custom datatype usercontrol is placed? Does this help? Regards, /Dirk
level 1 certified - umbraco blog at netaddicts.be - working on an integrated forum4umbraco
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Rank: Newbie
Joined: 9/19/2008
Posts: 11
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Thank you, Dirk. It's OK.
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