Positioning Dynamically Created User Controls
Jun 17, 2010
I have a set of dinamically created User Controls on the page. They are pretty small 170X120 px in size, but when the page is displayed, they are all one under the other. All styling is default, which means they should be positioned in normal flow. Is there any way to place them next to each other. This is not a problem when I dinamically create for standard controls, like a button or an image. Why the user control is different. This is the markup behind the control:
[Code]....
and this is how I create them:
[Code]....
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Nov 18, 2010
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[code]....
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Next
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Jan 6, 2011
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I'm trying to use the following loop to loop through dynamically created controls on my web form:
for(x = 0; x <= count; x++) {
Stmt += $("#DDLColumns" + x).val();
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Jan 25, 2010
i create textbox dynamically (not in page_load)
for example
dim t as new textbox
t.text ="wywyr"
t.id="wrytwry"
panel1.controls.add(t)
after that when i want to get the value from this one i cant.
i searched all the controls that i add into panel1
For
Each Control
In panel1.Controls
Dim s
As
String = Control.GetType.ToString
and it doesnt show nothing
how do i get the value from the dynamically generated textbox ?
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Mar 21, 2011
I'm creating an quiz application which queries the database and extracts the questions and choices. I use dynamically created controls such as a checkbox list and fill the values dynamically. How do I do this? Right now I have these functions:
array_random_init(); this creates a 10 element integer array from 1-20
- extract_question(i): this extracts a question indexed at i in DB, I created the controls and set the appropriate text in this function.
- validate_question(i); this is called by button_click and validates the question i according to DB.
I understand I have to recreate the controls in Page_init on postback, but what should it look like? Do I need to add "if IsPostBack" in page_init, or do I create the controls in page_init() and reset their properties in page_load when I use extract_question(i)? Also, I cannot seem to clear the selected boxes on postback, I added page directive enableviewstate=false" but it doesn't work. What's the right way to do it?
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Sep 13, 2010
I am building a webform dynamically but when I go to get the values the placeholder has no controls. Every control added has an unique ID. Does anyone know what I am doing wrong (language is C#).
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<asp:UpdatePanel ID="upShoppingCart" runat="server" UpdateMode="Conditional" >
<ContentTemplate>
<asp:PlaceHolder ID="phShoppingCart" runat="server" />
<br /><asp:Button ID="btnUpdateCart" runat="server" Text="Update" OnClick="btnUpdateCart_OnClick" />
[Code]....
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Mar 21, 2011
I have a GridView:
[Code]....
I have this LinkButton in the ItemTemplate section... I want to add a jQuery Popup when the user will click on it. The message that will be displayed depends of the value in the label. Is there a way I can do that?
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Jun 3, 2010
I'm passing a List to an MVC view and generating checkboxes for each object in the list (The checkboxes are named t.Name).I'd like to be able to tell which checkboxes were checked once the form is posted. However, I'd like to avoid using the FormCollection object.
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May 10, 2010
I'm working on an ASP.NET project in which the vast majority of the forms are generated dynamically at run time (form definitions are stored in a DB for customizability). Therefore, I have to dynamically create and add my controls to the Page every time OnLoad fires, regardless of IsPostBack. This has been working just fine and .NET takes care of managing ViewState for these controls.
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
RenderDynamicControls()
}
private void RenderDynamicControls(){
//1. call service layer to retrieve form definition
//2. create and add controls to page container
}
I have a new requirement in which if a user clicks on a given button (this button is created at design time) the page should be re-rendered in a slightly different way. So in addition to the code that executes in OnLoad (i.e. RenderDynamicControls()), I have this code:
protected void MyButton_Click(object sender, EventArgs e)
{
RenderDynamicControlsALittleDifferently() [code]
My question is, is this really the only way to accomplish what I'm after? It seems beyond hacky to effectively render the form twice simply to respond to a button click. I gather from my research that this is simply how the page-lifecycle works in ASP.NET: Namely, that OnLoad must fire on every Postback before child events are invoked. Still, it's worthwhile to check with the SO community before having to drink the kool-aid.
On a related note, once I get this feature completed, I'm planning on throwing an UpdatePanel on the page to perform the page updates via Ajax.
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Jun 2, 2010
i have an array of buttons added to a panel control and need to reset them to their original values, is this possible pragmatically?
protected void Page_Load(object sender, EventArgs e)
{
RenderTable();
}
[code]....
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