Web Forms :: Find Dynamic Control In A Placeholder?

Dec 10, 2010

I am creating dynamic controls... i.e. ddl

DropDownList ddl = new DropDownList();
ddl.DataSource = data;
ddl.ID = id;
ddl.DataValueField = "Key";
ddl.DataTextField = "Value";
ddl.DataBind();
PlaceHolder1.Controls.Add(ddl);

Loading the controls to the placeholder.

Selecting a value and clicking the button, doing postback, I want to capture the value selected in the ddl. I was using "FindControl method" but it is not working, I guess because the controls are created dynamically and will not show due to stateless HTTP.

How else can I capture the values? Is there away?

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[Code]....

here is code to read value but it returns null

TextBox text = PlaceHold1.FindControl("TxtSlotName0") as TextBox;

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[Code]....

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[Code]....

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[Code]....


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Maintain ViewState Of PlaceHolder / When Page Get Refresh All Controls From Placeholder Gets Removed From It?

Jan 19, 2010

how to maintain state of placeholder. i have a placeholder in which i add many image controls dynamically but when my page get refresh all controls from placeholder gets removed from it. the enableViewstate of placeholder is set to true.

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Web Forms :: Setting Visible Attribute On PlaceHolder Control Triggers?

Feb 22, 2011

I have a web form with an Asp.net PlaceHolder control. By default the control is set to visible false and will be displayed through the code behind based on several criteria. In general this PlaceHolder control wraps several other Asp.net controls. Now a new requirement ask that the controls within the PlaceHolder control be visible at all times an no longer hidden. So in the Aspx code I changed the laceHolder attribute and set it to visible. Now all kinds of Java Script validation errors are occuring and it is a horrible spahgetti code nightmare. Is their a way to set the visible attribute on the control and not have it trigger the validation?

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Forms Data Controls :: How To Add And Access To Placeholder In A Repeater Control

Aug 16, 2010

i want to add and access to placeholder in a repeater control. for example,

[Code]....

how can i acces to placeholder, on codebehind. i couldn't acces with it's id.

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Web Forms :: Line Breaks In Dynamically Built Placeholder Control?

Feb 17, 2010

I have a Placeholder control on Employee Main Menu. Several SQL Data sources are run at page load in order to notify employees that something is due. Each "something is due" message is loaded into a unique label. Therefore the Placeholder could have several labels in them. For clarity's sake I'd like them separated by line breaks. However I understand from reading a previous forum item that "< /br>" are ignored. How can I embed a line break when PlaceHolder_Msg.Controls.Count > 1

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Web Forms :: Find Control In LoginView / Find The Controls In Code Behind?

Mar 8, 2011

I want to change the text of the user name text box which is inside a log in view on selected index chaged event of a drop down list.

this is my code:

[Code]....

but both ddl and tb are null

Anyone knows how can I find the controls in code behind?

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