Custom Server Controls :: Insert A Drop List Property Into A Custom Webcontrol?
Feb 18, 2010How insert a drop list property into a custom webcontrol? This a drop list property is show all textbox control on usercontrol or webpage.
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Similar Messages:
Custom Server Controls :: List Property Of A Custom Control Is Not Persisted?
Mar 15, 2010I have a custom control, inherited from Button. This is the class definition for the control and 2 properties:
[Code]....
I show you 2 properties, only to illustrate the problem.
as you see Aplicacion property is of a custom type Sistema, and Roles property is of type List<UserRol>.
The Aplicacion property is rendered well, this way:
[Code]....
The problem I have is with List<UserRol>. I couldn't get it to be rendered. I expeect to be rendered this way:
[Code]....
Finally, this is the TypeConverter and Editor definitions for the list:
[Code]....
The UserRol class is a typical class, without any special attributes.
I have discovered that when I use the custom editor for Roles property, the collection is not persisted. When I use the default editor for the collection, the collection is persisted.
Custom Server Controls :: Button Triggering An Event In A Custom Webcontrol?
Nov 16, 2010I built a webcontrol showing a complex user interface with a lot of javascript. Basically my webcontrol is similar to : [URL]
Now that most the user interface is working properly, I'm stuck with the following issue: I want to add a button (html button tag) which has to trigger an event. I have been able to declare the event, the event args, the delegate,etc. The page using my control may assign a handler and that handler is called correctly when I explicitely call OnServerControlClick (The name I gave to the event). I cannot make the link between the button in the user interface and the event in the webcontrol source code. When the button is clicked, I get an error message saying a dangerous Request.Form value has been detected.
Custom Server Controls :: Hide A Method While Creating Custom Control By Inheriting WebControl?
Nov 29, 2010I am creating a custom control by inheriting a server control, say LinkButton. There are properties like "BorderColor" available in LinkButton. Let's say, I don't want this particular property to be available when I create an instance of the custom control.
I want to completely hide this particular property (I don't want to override it but disable it.)
My code is as follows:
[Code]....
Custom Server Controls :: How To Create Custom Property (DataSource) In Custom Controls
May 15, 2010I know that how to create custom control and add custom property.
I want to create property like DataSource to my custom control.
Custom Server Controls :: Custom Checkbox Control 'checked' Property Is Not Working?
Sep 3, 2010Iam developing a custom checkbox control deriving from the 'compositecontrol' which i need to use it for a composite control purpose.
public
class
TngCheckBox :
CompositeControl
{
i have written the required properties which are working fine except the "checked" property. here is my code for 'checked' property. i tried both the below ways (commented one and not commneted) . the problem is the 'checked' value is not setting the value at the get set part of the property.its assigning the value at the design time , but when i check and uncheck its not updating the property value.which is resulting me wrong .
[Code]....
Custom Server Controls :: Custom Checkbox Control 'checked' Property Is Not Working ?
Oct 15, 2010Iam developing a custom checkbox control deriving from the 'compositecontrol' which i need to use it for a composite control purpose.
public
class
TngCheckBox :
CompositeControl
{
i have written the required properties which are working fine except the "checked" property. here is my code for 'checked' property. i tried both the below ways (commented one and not commneted) . the problem is the 'checked' value is not setting the value at the get set part of the property.its assigning the value at the design time , but when i check and uncheck its not updating the property value.which is resulting me wrong .
[Code]....
Custom Server Controls :: Need Custom Text Box Control With DataSource,TableName,ColumnName Property?
Nov 26, 2010I need to create one custom text box control which should be bind with data base.
I am referring following link...
http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.databoundcontrol.aspx
I used DataBoundControl to create my control but i am not able to do it properly.
public class SimpleTextBoxControl : DataBoundControl
{
private TextBox nameTextBox;
public string DataTextField
{
get
{
object o = ViewState["DataTextField"];
return ((o == null) ? string.Empty : (string)o);
}
set
{
ViewState["DataTextField"] = value;
}
}
[
Bindable(true),
Category("Data"),
DefaultValue(""),
Description("The text to display on the link."),
Localizable(true),
PersistenceMode(PersistenceMode.InnerDefaultProperty)
]
public virtual string DataTexValue
{
get
{
string s = (string)ViewState["Text"];
return (s == null) ? String.Empty : s;
}
set
{
ViewState["Text"] = value;
}
}
protected override void PerformDataBinding(IEnumerable retrievedData)
{
if (retrievedData == null)
return;
base.PerformDataBinding(retrievedData);
Controls.Clear();
nameTextBox = new TextBox { ID = "nameTextBox" };
foreach (object dataItem in retrievedData)
{
if (DataTextField.Length > 0)
{
nameTextBox.Text = DataBinder.GetPropertyValue(dataItem, DataTextField, null);
}
DataTexValue = nameTextBox.Text;
}
this.Controls.Add(nameTextBox);
}
}
Custom Server Controls :: How To Add A Dropdownlist Of Available Values For A Custom Server Control Property
Sep 13, 2010How would I add a (dropdown) list of available values for a custom server control property?
(Just like 'Visible' property of most controls has valid values of 'True/False' and nothing else can be entered or selected)
Forms Data Controls :: Custom Gridview / Insert The Custom Dropdown Button Using Server Control For Each Column?
Aug 18, 2010i've created a webform with one gridview having connected with the database using datasource. i.e password database with three colomn .
now want to insert the custom dropdown button using server control for each column.
when i select the dropdown list the list should display the value as required.
e.g if i click the uname dropdownlist then it should show the list of names.
if i click on pwd dropdownlist then it should show the list of numbers.
if i select any one of the value in the dropdown list then it should insert into the
database.
can i get code on this type of question...?
Custom Server Controls :: How To Custom Controls Derived From Existing Controls - Overriding Default Property Values
Nov 15, 2010I have some (probably very basic) questions about developing custom controls. I am wanting to derive a set of button controls, and the first one I have started on is a "DeleteButton", that has a additional property (DeleteConfirmationText) that is built into the OnClientClick attribute. To get that added, I overrode the Render method as follows:
[Code]....
This all works well. Now, I will add some logic to make sure that there is some text in the DeleteConfirmationText property, but that isn't the intent of my question.
What I am also wanting to do is to override some of the default property values, so I added that to the default constructor:
[Code]....
Now, in the designer in VS2008, and I look at the properties for the control, there isn't a default value shown in the "Properties" section, and the Causesvalidation still shows the underlying classes default value of "True". As well, in design mode, where the GridView control that containse my DeleteButton control would be displayed, there is an error box "There was an error rendering the control. 'Are you certain you want to delete this attorney?' cound not be set on property 'DeleteConfirmationText'. Here's the markup where I am defining the deletebutton control:
[Code]....
What am I doing wrong?
Custom Server Controls :: Event Not Bubbling For Dynamically Created WebControl From The Db?
Apr 6, 2010For test purposes I have created a simple button control that extends CompositeControl. I am able to place it on the page with a <asp:Content... and the Click event Bubbles without problem from the Control.
Now, here is the problem I am facing Due to design requirement I need to read the assembly and the classname from a table and dynamically create the control and add it to the <asp:Content. And when I do that the click event will not fire! Where am I going wrong.
Here is the code in the ButtonControl.cs
namespace Reports.Web.ServerControls {
[DefaultProperty("Text")]
[ToolboxData("<{0}:ButtonControl runat=server></{0}:ButtonControl>")]
public class ButtonControl : CompositeControl {
protected override void CreateChildControls() {
Button btn = new Button();
[Code]....
Event Handling - How To Wire Up A Custom C# WebControl To Post Back A Custom __EVENTARGUMENT
Dec 16, 2010I'm creating a custom ASP.Net GridView and I want to be able to alter the __EVENTARGUMENT value but I can't figure out how to capture the returned value on the server side.
I'm creating the ability to have a collapsible representation, so the first level is the standard GridView and I will insert additional rows via JavaScript if they expand the first level row.
My problem is how to create a link on the selecond level rows that posts back with custom data.
Add Custom Property To Custom Server Control?
Jan 11, 2011I have created an asp.net custom control and now want to pass some values to it from the page which will use the control.Is there any way i can add my own property to the control (like Text property is present for a Label control)?
View 4 RepliesCustom Server Controls :: Custom Tag Not Found For Control / Error: Unknown Server Tag 'custom:AjaxValidator'
Jan 3, 2011Hope this is the correct forum for this question. I am using VWD 2010 an have a web project and get the following error upon execution:
Parser Error Message: Unknown server tag 'custom:AjaxValidator'.
My code is as follows in the .cs file:
[Code]....
[Code]....
Custom Server Controls :: Binding UserControl Property To Page Property?
Sep 15, 2010So what I'm trying to accomplish is this
[Code]....
The user control has public properties named accordingly and the page has protected properties accordingly which I've verified have the desired values.
For some reason the values are always empty strings or 0s in the usercontrol, no matter what the page property is.
AJAX :: Custom Validator VS Drop Down List?
Apr 29, 2010custom validator is not working for drop down list? i failed to get the right value from the drop down list.
View 2 RepliesCustom Server Controls :: Custom Composite Control With Custom Templated Child Controls?
Mar 22, 2011I am trying to build a custom composite control, which allows me to add custom content to each child control. It's a similar concept to what you have with a GridView and TemplateColumn. The markup used to place the control on the page would end up being something like this:
[Code]....
I have the code below, which allows me to put that markup on the page without throwing any errors, and it renders all the correct HTML, except it doesn't render the contents of the ColumnTemplate. I have replaced the Render() code with a comment because it's quite long winded and doesn't add anything important here:
[Code]....
I have tried to follow examples on MSDN and other forums but I can't make this work. I think I'm missing the code to render the contents of the template, but I don't know how to hook that up.
Custom Server Controls :: How To Set And Get Property For The Dropdown
Jul 21, 2010In my user control i have the label1,textbox1 and dropdown1, i can able to set the values and get for both label and text box. but how can i set the value for the drop down.
from the aspx.cs or aspx.vb
i will set the object of the control (Ex: usercontrol1234)
usercontrol1234.propText="This is text box"
usercontrol1234.propLbl="This is Label "
Then how can i set for the drop down? i can bind the dropdown data either by dataset or datareader.But cannot able to figure out how to set the property?
[code]....
Custom Server Controls :: Property Not Being Held In ViewState?
Mar 11, 2010I have the following class:
[Code]....
It was my expectation that by default, the Title property would be stored in ViewState, but this appears not to be the case - the exception in RenderBeginTag keeps getting thrown on postback.
Am I being thick? Do I need to explicitly store properties in ViewState?
Custom Server Controls :: Get A Color Picker For A Property?
Feb 24, 2010I would like to create a property that uses the Visual Studio color picker (just like ForeColor and BackColor).It seems I need something like this:
[Editor(typeof(ColorTypeEditor),typeof(UITypeEditor)) ]
But I am not able to find the correct syntax.I tried it without an editor and returning the type "Color", but that just generates a dropdown with all of the known color names for the property. I would like the color picker to appear which allows you to see the colors and pick one.
Custom Server Controls :: How To Show All Property Of Gridview Of Control
Jul 14, 2010i have created a new user control who contains a gridview so, my prolem now is that i want show all the property of the gridview included in the control, but i want not write like this:"Usercontrol1.GridView1.Datasource=...." but i want write "Usercontrol1.DataSource=..." and this also for other controls how can i do this?
View 1 RepliesCustom Server Controls :: Populate Property Choices From A Database?
Aug 19, 2010I'm creating my first server control, and have it working where I can set up an enum and the user can set a property's choices, based off of that enum. But I'd like it to pull records from a database and populate the list of choices for the property from a database. This would allow me to add a new "Host System" to the database, and the other designers wouldn't have to get a new copy of the dll.
View 3 RepliesCustom Server Controls :: Radio Button Grouping Property Is Not Working
Oct 20, 2010Iam developing a custom server control of radiobuttton. it is working fine with the all the properties i wrapped except the grouping . somehow the grouping is not working .
[Code]....
Custom Server Controls :: Adding A CssClass Property To Web User Control?
Apr 26, 2010The built in Asp.Net Controls (label, Textbox, etc.) all have a CssClass property that can be set, what do I need to do to implement that for a Web User Control?
I know how to add a property and pass thru the get & set to the corresponding Asp.Net control (example if I have a label I know how to create a LabelCssClass property that provides a get & set, but the control itself how do I set a CssClass or ClassName property.
