I don't seem to be able to set the Text property within this custom control. Even though I set the Text property in code-behind, when I refresh the web form, only the default message is shown.
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I 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);
}
}
my web application i use FindControl to retrieve a Control By Name (it returns an System.Web.UI object). The control can be of various type and I don't want to treat them differently: I'd like to set the Text property to a defined string. I hope there's a class that I may use to cast the control and set the Text property.
View 8 RepliesI'm trying to set a property on a custom DropDownList:
<custom:ReferenceDropDownList ... ValidityDate="<%# Application.CreateDate %>" />
Even though I can see that Application.CreateDate has been set in the Page_Load method on the containing UserControl, the code-behind in the DDL never seems to pick it up.
protected override void OnLoad(EventArgs e)
{
// this.ValidityDate is always null
}
This is even the case with ValidityDate="<%# DateTime.Now %>". The property of the DDL is declared like this:
[Category("Data")]
[DefaultValue(null)]
public DateTime? ValidityDate { get; set; }
what is the correct sequence I should be following here. I thought that a DDL would evaluate a cynamic property value like that without too much trouble.
I created an Extender which has a custom property that drills down a list XML elements from an xml file, where users can select xml elements during design-time. This works perfectly fine. However, my code only has a hardcoded xml filename (source of the xml elements list) and I need to change this by maxing the xml file user-specified.
What I did is that I created another control (panel) which has a custom property that when clicked (through the ellipsis), it will allow a developer to select the xml file which is supposed to be the source xml file that the Extenders shall use. The filedialog from custom panel's property works perfectly fine.
However, my problem now is that when I drag-drop my Extender, I cannot find a way to get the property value of the custom Panel Control which contains the xml filename. I tried creating a static variable which I thought the custom controls can share but VS2010 is breaking.
I have created a user control and am ready to convert it into a custom control. I am trying to follow:
[URL] the steps mentioned in the link.
I am not seeing Build / Publish Web Site option.
I am using VS 2008. I only see Publish User Control but it doesn't give all the settings mentioned below. When I do publish user control, it just copies the ascx file to the desired location. how can I convert the user control to custom control.
Iam 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]....
Iam 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 .
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I 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.
I have ajax accordion with 6 panes with an user control inside each of it. In the first pane I have a form view user control and have a modalpopup to display error message. The same method is used in all other panes.
On page load I was able to set the label text property and it properly shows in modal popup.
However whenever I do some validation and update label text property, the modal popup shows up but the label text property is not updated. It works in all other panes.
The only difference is the user control in the pane is inside of a update panel. If I remove the update panel every thing works fine. But I need the update panel to avoid full post back.
How do I set the label text property inside of a modal popup.
Sections of code below:
[Code]....
I'm trying to programmatically set the property of a control on my Form AFTER I've proccessed an update command using the FormView, but it's not working. In my example below, I have a basic FormView with only a TextBox and Label in its EditItemTemplate. The FormView uses an AccessDataSource. The TextBox is bound to the datasource, but the label is not. What I'm trying to do is update the value in the TextBox (as well as its associated data stored in the database), and then change the Text property of the Label. (*Note: that I using the label purely as an example. The point is I can't see to set any control's property after an update).
I initally thought it had something to do with the "Page.IsPostBack", but even after trying to adjust my code for that, its still not working. I've tried change the Text property during the Page.IsPostBack during Page_Load event. I've tried setting the Label's EnabledViewState property to True and to False. I've tried using the FormView's OnItemUpdating and OnItemUpdated events. I've tried using the DataSource's OnUpdating and OnUpdated events.
created a Custom Textbox Control that is intended to be a "masked date" textbox, so that I can handle different ways a user might enter in a date and make it work no matter what.I did this by creating a custom control with 3 separate Textboxes one for month,one for day one for year,then do some handling for different things that could be entered and it would all work.
The problem I am having is,when I add this control to the page,if I do an alert to check the Text value of the custom control it just gives me "[ServerControl1]" even if I enter in a date.
I tried doing an AutoPostback after entering so that it would refesh the Viewstate to have the values of the textboxes but the control doesnt seem to actually postback, even though I have it enabled.accessing the Textbox value after someoen
has entered a date?first custom control I have created and have been using google.
My Server Control Code is as follows:
[Code]...
I'm trying to do something which to me seems like it should be simple, yet I cannot think of a simple way to do it.
I have a built custom control, that has a property I want to change based on a user's interaction with a second custom control. This second control will be a table of data, with an 'edit' link in the last column. I would like the control, when the edit link is pressed, to pass an ID and trigger some event so that I can assign this ID to the first control. My initial technique for building this (second) control was to create some code which will iteratively create some html based on a dynamic range of data selected by the user. I know that I could create some sort of link with a value in the query string, but I would like to implement AJAX and was hoping that I could enable this communication without changing the URL.
I have a checkbox in a repeater control. How to get the User,Administrator,Security Admin as the checkbox Names ?
private string[] AvailableRoles = { "User", "Administrator", "Security Admin" };
Repeater_Roles.DataSource = AvailableRoles; Repeater_Roles.DataBind();
[code]....
I 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 Repliesi am tryin to make an inherited custom label control.
what i want is i want to have a property for the label where one can select languages.
like <label id="lbl" language="">
so when the user gives "language" property he must be provided with an option of "EN" and "AR" like an intellisense.
I am using: .NET 2.0, VS2005
I customized a button from System.Web.UI.WebControls.Button (it is a Custom Control, NOT an User Control, no ascx file)the intention is to adding a OrderID property to the button, that can be bound to a datasource field.
Here is how this control is used in a aspx page:
[Code]....
Here is my definition of the MYButton class, it saved in a .vb file and placed in App_Code folder
[Code]....
Here is the code trying to use the OrderID in btnSave_Click()
[Code]....
The problem is OrderID is always returned as 0.
When first time page is loaded, and gridview is bind to a data source, I step through the code, and the OrderID property are set correctly, but after the postback caused by the button, the OrderID value has lost.
I'm working on an ASP.NET 3.5 project that requires me to create several custom navigation server-side controls that can be customized at design time by non-ASP.NET website developers through a simple text editor. All but one were relatively easy to create, but the last one is stumping me. I've looked online and can't find any examples anyplace that come close to what I'm trying to do.The last control needs to give the site developers the ability to manually define the number of nodes that are displayed within the control when it's rendered on a page, and I want to reproduce the design time/runtime functionality of the GridView's "Columns" property. In the Columns collection the site developer at design time can manually specify the look/feel of each column within the ASPX designer. I want to give my site developers the same design-time flexibility so they can add/remove nodes at their whim and not bug me to do it for them.
an anyone point me to any examples of how to create a collection custom child controls that are associated with a custom server side control?
I have build a composite control which renders a TextControl or a RADEditor control, dependable of a property a set. Both rendered controls have a Text-property. The problem is that when I change the Textvalue on my webpage (when it is running) it won't set the new Text-value but the old Textvalue instead.
Below the code of my composite-control.
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Text;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using Telerik.Web.UI;
using System.Web.UI.HtmlControls;
using Framework.WebControls;
namespace Components.Broadcasting.Controls.....
I created a simple gridview user control with a custom property ProfileType which should load different records depending on the ProfileType value when attaching to a web page.
This is my web page:
[code]....
how I can expose user control custom property at its code-behind file.
A common problem in repeater controls where you want to display data for update (like a list of user phone numbers that can be updated and submitted back to the database) is where to store the database unique row identifier. So, I created a custom Textbox control that I've added a Data property to. I populate this data property with the unique row id. The problem is that when I post back the list and go through the repeater items the control's data property is null. The custom control looks like this:
[Code]....
The tag in the repeater looks like this:
[Code]....
I have a custom checkbox with the same data property and it works fine. I actually put in the same repeater with the textbox control and the checkbox control have the row id on postback but the textbox did not. Is there some limitation on the textbox control that might be causing this.
I've have been searching the web for weeks trying to find a solution for my application buttons. What I want is a control that will display the various buttons for my application from the splash page down to the save/submit. The control needs to be able to handle the following:
Image + textset Text Location (top, left, bottom, etc) Rollover Image ChangeBorder size and colorbackground color set Heightset width I have the rollover affect working. Below is the code for the imagebutton with rollover
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I am developing one custom control. I dont want default web control property should be in my custom control.For example.[Code]....
When you put this control in the page, you will see default web control property such as Font,Border,Width,Height.... I want to show only those properties that I define in my class.Suppose, I have three property defined in class then only three properties will be visible for control, other default web control proeprty should be hide or invisible.
How 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)
I have used calender web user control inside my project where i took textbox,button and calender...but after dragging onto my aspx page..i am unable to access this textbox,calender and button on aspx page..
View 5 Replies
