ASP.NET XML Control DocumentContent Property?
Mar 4, 2012
I am using ASP.NET XML control and on Page Load event I am updating its DocumentContent property but the problem is data isn't being shown. The control is empty on page load.
xmlDIMenuSource.DocumentContent = "<Menu><Parent ID="1" Name="Order" SortOrder="1"><Child ID="21" Name="Create an Order" URL="../Order/OrderCapturingv4.aspx?Action=new" SortOrder="1" /><Child ID="32" Name="Import a Style" URL="../Order/OrderCapturingv4.aspx?Action=import" SortOrder="2" /></Menu>";
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Dec 11, 2009
I would like to be able to set Control visual properties such as color, boarder, flat style, etc. on the base class of the control so that as I add new instances of the control, each instance inherits the visual properties of the base. I have tried using Application Settings but it appears as though I need to reference an application setting manually each time I add the control to a form. This is a Windows Form question.
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Feb 16, 2011
I'm trying to make a program with transparent labels over pictureboxes and when I set the label Parent to the PictureBox the position of the label changes.
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Jun 17, 2010
i frequently have troubles with the dock property. it seems that either the order of creation or adding to the parent control determines whether or not a control's dock property supersedes another's. e.g. a control with the dockstyle fill will overlap with another docked control on the same parent. does anyone know what the rules are to determine how docking will behave; particularly in dynamically created GUIs?
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Jun 6, 2012
Is there a way to bind the text property of a control to an expression? I have a user control that I add to a FlowLayoutPanel. You can see I have 4 controls in the FlowLayoutPanel below. The first control is a LinkLabel and the other three are my user controls which are numbered 1, 2, & 3. I'd like to bind the label that shows the 1, 2, or 3 to the user controls index within the FlowLayoutPanel.
If I happen to remove the 2nd user control I want the 3rd user control to now display 2. I could use the FlowLayoutPanel ControlAdded or ControlRemoved events, but wanted to see if I could do some binding first.
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Dec 30, 2011
If I need access to the value of a user control's property BEFORE PreRender, would I need to base the custom control off of one of the preexisting data controls (repeater, listview,etc.)?One of my user controls features a gridview control that is configured based on the user control's properties on which it resides. Several of the key properties alter the SQL Statement for the underlying recordsource. I'm now in a situation where the property that sets the WHERE statement for the SQL Statement needs to tied to a value in the user control's parent FormView. Think of the formview as displaying a customer detail record. The user control takes the customer's account number and then displays data from a related table such as Customer Contact Names. Since the gridview is created before the control's prerender event, working within the prerender event doesn't seem efficient.
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Mar 10, 2010
I inherits textbox Control and I added some new properties to it .one of these properties value i want it to change it's value in desgin time when i change Name property of the new textbox
Public Class NewTextBox
Inherits TextBox
Private _txtSubName As String = String.Empty
That is the property for set or get SubstringName of Textbox
Public Property SubName() As String
Get
Return _txtSubName[code].....
that's the property i want to change it's value when i change Name property of the control.i tried to overrides Name property but it's not overridable also i trieds to overloads it but it doesn't work in desgin time.Here is something i tried but it's wronge.
Private _txtName As String = ""
Public Overloads Property Name() As String
Get[code]......
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Apr 3, 2010
I have created a custom class, which contains a panel and a label on it. I added to this class a pcaption property, which holds the label text. This property is browsable and I can change its value.But when I drag the custom control to the form and change the pcaption property, it has no effect. Even the <Defaultvalue> has no effect. Why?
Here is the class code:
Imports System.ComponentModel
Public Class mypanel
Inherits Windows.Forms.Panel
Private panelcaption As String
[code]....
Color values are unimportant, you can change it.
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Aug 3, 2011
I have a number of pages which implement the same interface:[code]The function doSomethingToTextBox takes a textBox item as a parameter and performs some action on it.I know the textBox is contained on every page which implements my interface, and that it has the same name on each page.My question is: how can I declare the textBox as an interface property? This will remove the need to pass the textBox as a parameter to doSomethingToTextBox()I must also add that I'm currently accessing the TextBox using get/set methods defined as part of the interface - I don't want to have to implement these methods for each page as they are exactly the same on each page.
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Sep 3, 2010
I am working with dev ex controls and on a menu bar item there isnt a property for setting the button to Visible or not Not Visible. Can you add properties like this to pre made controls? If so how would you do it?
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May 13, 2012
I want to get a control's property from a BackgroundWorker in my form:
foreach (ListViewItem i in ListView.CheckedItems) { //error: Cross-thread operation not valid: Control 'ListView' accessed from a thread other than the thread it was created on.
//do something with i
}
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Nov 23, 2010
In this example the IsEnabled property of my button is bound to the selected rows "Local" property of the grid and it works just fine:
<Button DockPanel.Dock="Bottom" Width="100" Height="100" IsEnabled="{Binding ElementName=dataGridRestore , Path=SelectedItem.Local}"></Button>
<my:DataGrid x:Name="dataGridRestore"
ItemsSource="{Binding}"
[Code]...
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May 19, 2011
How to detect if a particular control has a particular property?
I am considering writing a generic routine and I would like to know how you can detect whether a particular object has a particular property?
Something like this code:
If HasImageProperty(myObject) = True Then
EndIf
I guess reflection would be used here, but I am not very familiar with reflection.
[Code]....
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Feb 8, 2010
I have inherited a vb6 app that I am trying to upgrade to VB2008.
If I can find out that a control has a ToolTipText property as below, how can I get the value?
For
Each ctl In frm.Controls
If Not (ctl.GetType().GetProperty("ToolTipText") Is Nothing) Then
[Code].....
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Jan 30, 2009
I have created a form dynamically. On this from I have added two user controls. The first user control(Mylabel) is inherated from label and the second one(Mybotton) from button. On my Label control I have added a method as follows:
Public ReadOnly Property ctlStatus()
Get
Return (m_Selected)
End Get
[code]....
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Oct 27, 2009
Is it possible to put RTF text in a control's tag property?
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Aug 3, 2009
When i set visible property of a control.
What happen with that control ? It merely hide or disposed from memory away ?
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Jul 2, 2009
I am developing a custom control with VB9, and I want to add a Property Name TextFileName this property need to use OpenFileDialog, which type I can use when I define this property?
for example another property I use is EnterFocusColor and its type is System.Drawing.Color so when the user select the property it opens the ColorSelectionDialog Hany M. El Tarhony
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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 {..}
[Code].....
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Jun 3, 2009
I'm writing a custom user control for my asp.net site, for storing datetimes. It has two properties:
Private _includeTime As Boolean
Private _value As DateTime = Nothing
Public Property IncludeTime() As Boolean
[code]....
I call my custom control in this way:
<my:DateTimeInput runat="server" includetime="true" ID="txtWhen" />
This sets the includetime property correctly.In my backend code I also do this on page_load:
txtWhen.SelectedDateTime = now
When I step through with the debugger, I see that the property gets set, BUT when the page_load of the control itself loads, the property value is reset to nothing!
The page_load of the control:
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
lbltime.Visible = IncludeTime
If SelectedDateTime().CompareTo(Nothing) > 0 Then
[code]....
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Jun 21, 2010
I have created a CustonControl (NOT a usercontrol) and defined a DependencyProperty as following
[code]...
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Apr 9, 2009
I have a sql data source and I have a really long string of SQL. I want to put linebreaks in my sql but Visual Studio doesn't seem to like the linebreaks. How would I put in line breaks?
[code].....
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May 4, 2011
What is the best way to bind a property to a control so that when the property value is changed, the control's bound property changes with it.So if I have a property "FirstName" which I want to bind to a textbox "txtFirstName" text value. If I change FirstName to "Stack" the txtFirstName.Text also changes to "Stack".
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Jun 2, 2010
I just wanted to confirm couple of things.
I) Code snippet:
cmb1.Datasource= dt;
cmb1.Valuemember = "value";
Does the control rendering happens 2 time for the control, 1 more time extra because of the value member getting changed after data source assigned. Is this so?
II) How can I trace these re-populations in C#? I just wanted to debug and see and confirm?
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Aug 15, 2009
I am using a Micrsoft Web Browser Control (i.e. the AxWebBrowser NOT the standard web browser). The only way I can declare the variable for it is as follows:
Dim wb1 As New AxSHDocVw.AxWebBrowser However I cannot then do the following: wb1.Name "WebBr1" It says the Property Name is ReadOnly
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Feb 3, 2010
I am relatively new to programming and have managed so far with google and a lot of patience! I am having a problem naming timer contols at runtime. This is what I am trying to achieve.
1. I connect to my dataset and to my first record
2. I create a loop for the recordset
3. I create various objects on a form and name them using the info in the dataset
I also need to create timers and name them using the first field of my dataset. It needs to be dynamic as its database driven. There could be as many as 100 timers at any one point.
[Code]...
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Jan 12, 2012
I am inheriting my own DataGridView (say MyDataGridView) from the standard DataGridView control. What I want is that certain properties of MyDataGridView should have a different default value than what its base have. For example, AllowUserToAddRows, AllowUserToDeleteRows, AllowUserToResizeRows properties should have the default values of False; so that when I drag MyDataGridView into a form in the IDE, the default values shown in the properties grid should be False. Later on, if I want to change them to True from the grid, they will be set accordingly.
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Apr 3, 2012
I have an Inherited Control with a Property that can be set in the designer. There's some code in the Set procedure to make sure it's set appropriately. However when I build or run the project that property is changed, I am assuming it's the sanity check code in the Set procedure that's causing it to be changed along with some VS beahviour. Here's the code:
[Code]...
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Apr 23, 2012
how to control the visibility of movieclip property from vb.net
[Code]....
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Apr 13, 2012
I'm trying use just a user control form to act like the old VB6 picturebox. Mainly, i'm doing this is because a user control form is also a container but i also want it to have an image property. I've done this. The new control does have an Image property but the problem is that the user control form doesn't have an image property but only a BackgroundImage property.I was hoping that there is some way to place the selected image, directly on the surface of the user control and not to it's BackgroundImage property. Here is what is got so far:
Code:
Public Property Image As System.Drawing.Image
Get
Return Me.BackgroundImage
End Get
[code]....
As you can see, for now, i have to use the BackgroundImage property but i want to image to be placed on the controls surface, so that the image can be manipulated, like drawing game tiles on it or image processing. The user control doesn't have a real image property?
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