Add Description To An User Control Property In Vb.net?
Jul 10, 2010
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 {..}
}
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Aug 27, 2010
I'm doing up a search engine & what i want to happen is to get the title and description from the page as in below:
[Code]....
And here is the code that gets the meta tags:
[Code]....
Just can't write the code to get the title & description to show on the search result page.
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Sep 10, 2010
I'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?
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May 28, 2010
SELECT *
FROM
INFORMATION_SCHEMA.COLUMNS
WHERE COLUMN_NAME =
'Description'
vw_aspnet_Applications Description
aspnet_Roles Description
vw_aspnet_Roles Description
aspnet_Applications Description
The above query returns only those columns that are named "Description" from the default asp.net membership tables. That is not what I want. Each column has a property called "Description" which allows the developer to provide a detailed description for each SQL field (a.k.a. "column"). Example: aspnet_Membership has a column "Password" which does not have anything in the "Description" property although it should have imo
because without a description, it is not obvious that the password's value happens to be encrypted.
Scenario: Assume that I have a table called Trucks that has data like
Number Odometer ... et cetera
It's schema looks something like this (abbreviated)
COLUMN_NAME Description
Number yyyynnnn where 'yyyy' is year truck was purchased, 'nnnn' is sequential number.
Odometer most recent odometer reading in kilometres
How would I code a SQL SELECT statement in SSMS 2008 to display the schema data such as a column's name, its description text, et cetera? because "description" is such a generic term, I've so far been unsuccesful at locating further information in Google.
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Mar 22, 2011
i 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?
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Jan 30, 2011
<asp:FormView ID="FormView1" runat="server" DataKeyNames="productnum"
DataSourceID="EDS_Product">
<ItemTemplate>
<div class="ContentHead"><%# Eval("name") %></div><br />
<table border="0">
<tr><td style="vertical-align: top;">
<img src='images/big/<%# Eval("image") %>' border="0" alt='<%# Eval("name") %>' /></td>
<td style="vertical-align: top"><%# Eval("description") %>
<br /><br /><br /></td></tr></table>
<span class="price"><b>Your Price:</b> <%# Eval("price", "{0:c}")%><br /><span class="number"><b>Number:</b> <%# Eval("number") %>
</span><br /><a href='AddToCart.aspx?productnum=<%# Eval("productnum") %>'>
<span class="ProductListItem"><b>Add To Cart<b></font></span></a>
</ItemTemplate>
</asp:FormView
this is from the product details page and the description goes in a straight line always - i want to make the description a box and have lenght of 30 characters every line -- i want to modify the description not to be in a straight line
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May 28, 2010
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.
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Oct 28, 2010
I have a user control that has the following property
public string ReportID
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Jun 2, 2010
I have a user control with a WebDateTimeEdit server control on it (essentially a TextBox). I'd like to be able to set some of the server control's properties by way of the user control's markup or programatically. for example I have this defined on my user control:
[code]....
this blows up because WebDateTimeEdit1 is null.
is there any way I can make this happen? also can do I do this
myControl2 .Font.Size = FontUnit.Point(8);
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Apr 16, 2010
I have a control that I want to be able to mark areas as editable. When a user enters a username and password, they can then edit these editable areas.One of the area to edit is the main content of the page. Since I want them to be able to edit this on every page, I have put the editable control into the master page, wrapped around the ContentPlaceHolder of the master page.I found out how to allow the parser to allow <prefix:tag></prefix:tag> rather than just ending it with />, but I can't figure out how to get the text within the tags to be accessible through something like a Text property. A prime example of this behavior is the Label control, where you can put <asp:Label>Hello!</asp:Label> and access Hello! through the .Text property in the code.
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Apr 2, 2010
how to access a property on my parent page from a user control?
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Jan 25, 2010
I have created a user custom control, and what I would like to do is to pass it the text value from a label where I can carry out some other processing.
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Oct 28, 2010
I have a very simple user control with 5 radio buttons on it, and 3 properties (ID, RatingSetID, and Rating). On the initial load of the page they are on, the code acquires data and places the data into the 3 properties. However, when the submit button is clicked the page reloads and the 3 properties get reset to 0, they are in the !IsPostBack as well.
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Nov 29, 2010
I have a custom user control UserProfileLink on which I have two basic string properties, UID and UserFullName which I would like to use in a template column in a DataGrid like this:
....
<ItemTemplate>
<td:UserProfileLink ID="uplUser" runat="server" UID="<%#Eval("UserUID") %>" UserFullName="<%#Eval("UserFullName") %>" />
</ItemTemplate>
....
I get an error saying "The server tag is not well formed" which leads me to believe this type of binding isn't possible. Is there a way to do this, or is it impossible?
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Feb 2, 2010
I have a web user control (ascx) that exposes an "ID" property. What I want to do is set this property when the SelectedIndexChanged event fires in a gridview in the containing page. However, I can't seem to do it.... Here's my code:
protected void grdPhysicians_SelectedIndexChanged(object sender, EventArgs e)
{
physicians_certif1.mdID = grdPhysicians.SelectedDataKey.ToString();
mvData.SetActiveView(viewEdit);
panAdditional.Visible = true;
}
Physicians_certif1 is the user control. It seems the user control is loading before the SelectedIndexChanged event has a chance to set it's property.
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Aug 20, 2010
I have a user control with a panel on it:
CustomControl.ascx
<%@ Control Language="vb" CodeBehind="CustomControl.ascx.vb" %>
<asp:Panel ID="myPanel" runat="server"></asp:Panel>
I'd lke to expose that panel as a property that I can use at design time.
CustomControl.ascx.vb
<ParseChildren(True), PersistChildren(False)> _
Partial Public Class CustomControl
Inherits System.Web.UI.UserControl
#Region "Members and Properties"
<PersistenceMode(PersistenceMode.InnerProperty)> _
Public Property SomePanel() As Panel
Get
Return myPanel
End Get
Set(ByVal value As Panel)
myPanel= value
End Set
End Property
#End Region
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Response.Write(myPanel.HasControls.ToString())
End Sub
End Class
And then bring the control onto a page like so:
<ucl:CustomControl runat="server">
<SomePanel>
<asp:Label ID="lblText" AssociatedControlID="txtBox" runat="server"></asp:Label>
<asp:TextBox id="txtBox" runat="server"></asp:TextBox>
</SomePanel>
</ucl:CustomControl>
When I run the page, HasControls is true but nothing is rendered. What am I doing wrong?
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Feb 23, 2010
I designed a user control. It contains a public property "CurrentValue". When I try to initialize the property using an Eval expression, a null value is assigned.
// In below code, label assignment is OK, RatingNull user control assignment get null
<asp:TemplateField>
<ItemTemplate>
<asp:Label ID="Label1" runat="server" Text='<%# Eval("Difficulty") %>'
<uc1:RatingNull ID="RatingNull1" runat="server" CurrentValue='<%# Eval("Difficulty") %>' />
</ItemTemplate>
If I directly assigned a value (ie, CurrentValue="5"), user control works fine.
public partial class RatingNull : System.Web.UI.UserControl
{
private string _CurrentValue;
public string CurrentValue
{
get { return _CurrentValue; }
set { _CurrentValue = value; }
}
(...)
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Dec 3, 2010
Before I get to the question, let me give a bit of background. I'm trying to develop a custom caching mechanism that I can apply to custom built user controls. (Please be aware that I know that there are some built in caching mechanism in .NET) Depending on certain flags set declaratively in the mark-up the control should load a cached version of its previously rendered content or execute normally (and if certain flags are set it should generate a cache of its content for next time it loads). I would like to be able to pass certain flags declaratively in the mark-up and being able to check their value at Page Init and, depending on the flag value, determine whether the control should load a cached version or not.
<uc:MyUC ID="N1" runat="server"
CacheProp='<%# SomeEnum.A | SomeEnum.B |SomeEnum.C %>'
PropA='<%# this.SomePropA %>'
PropB='<%# (this.SomePropB %>'
PropC='<%# this.SomePropC %>'
/>
The problem that I'm facing is that as far as I'm aware I can only get the value of the properties declaratively assigned in the mark-up if I called the DataBind(). However I'm faced with two problems: Firstly calling this.DataBind() from within MyUC will trigger the binding of all its child controls which would defeat the purpose of the cache; also all user controls have been built so that they will not call DataBind() before the LoadComplete event has fired, so to make sure that the parent controls they live in has done its initialisation and has computed the properties that are declaratively passed to the child user control (ie PropA, PropB, PropC).And now the question: is there a way to bind the CacheProp property so to retrieve its value without data binding all other properties and without triggering the data binding of all its child controls?
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Nov 27, 2011
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] ....
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Apr 13, 2010
I'm having trouble to access a Parent's property in User Control. I don't know how to access the parent. The Parent Page's name is Search.aspx. I saw the example below and tried it:
[Code]....
Than I could access the Parent's Property, but when I ran the website I got these errors:
1. The user control is not declared in the parent page
2. The user contol has a circular reference
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Oct 25, 2010
I have a hidden field on my default.aspx page. Within default.aspx page I have a user control which has a label on it. I need the label to display the value on the hidden field. How can I go about this?
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Apr 15, 2010
I am trying to build a web user control and set some default values for its properties in the code-behind like this:
[DefaultValue(typeof(int), "50")]
public int Height { get; set; }
[DefaultValue(typeof(string), "string.Empty")]
public string FamilyName { get; set; }
[DefaultValue(typeof(Color), "Orange")]
public System.Drawing.Color ForeColor { get; set; }
When I add the user control to the page and call it without any properties:
<uc1:Usercontrol ID="uc" runat="server" />
the default values are not set and every property is 0 or null.
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Jun 10, 2010
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]...
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Jan 3, 2011
I would like to dynamically load a user control and assign one of its public properties OnLoad...
I'm doing the following from a parent user control to dynamically load the child user control...
UserControl uc = (UserControl)Page.LoadControl("~/Controls/MyUserControl.ascx");
What else do I need to do to pass a value so its public property is set OnLoad?
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May 4, 2010
I have a web page with several databound (via their property's) user controls in a multiview in a formview.
I decided to try Ajax (Adding ScriptManager, updatepanel etc).
All works fine except for the user controls.
The controls I use to contain the usercontrol property values ((invisible) Textboxes or Hidden fields) lose their value when i change from ond multiview panel to another. (In other words: usercontrols on invisible multiview panels lose their property value's). (When I change a multiviewpanel all the property fields turn emty, when i hit the update button of the formview afterwards the emty values are propagated to the database. (resulting in loss of data)) Textbox seems to hold its value, hiddenfield loses its value (when changing from one multiview panel to another).
This seems to be a coplication of the multiview in combination with ajax.
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