How To Save Asp:HiddenField Value Across Postback
Oct 18, 2010How can I save asp:HiddenField value across postback?
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[Code]....
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[Code]....
Code behind:
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{
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get [code]....
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Mar 8, 2010I would like to store an array of string or a List<string> in a Hiddenfield. You can c the code I am trying below :
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Web Forms :: Access Value Of HiddenField In Static WebMethod
Sep 20, 2015I am developing a application in which I return the value a it will fine it give me value during debug when I put cursor on .value it give me HiddenField1.Value 140 value but how I get this value into jquery code I will try a code but every time give me empty value means this value can’t assign to grid view following my whole code
var HiddenField1 = a;////////////////////////C# code where give me value of a
HiddenField1.Value = a.ToString();
My hidden field and Function to access the hidden field value
<asp:HiddenField ID="HiddenField1" runat="server" value="" />
Method to access the hidden field value in Jquery code.
var HiddenFieldcheck= $('#HiddenField1').val();
alert($('[id*=HiddenFieldcheck]').val());
but every time it give a empty value how I solve it ...
Custom Server Controls :: CompositeControl Does Not Retrieve FormView Data On PostBack ("Save")
Feb 10, 2010Background:I'm building a custom control as a base class that derives from CompositeControl. It consists of a FormView, a ObjectDataSource and a CRUD-Button Series (Create, Read, Update, Delete - Buttons). I'm loading the different FormView templates within the deriving classes dynamically from file with Page.LoadTemplate().
Class structure:
TabControlBase:CompositeControl
Employer:TabControlBase
Applicant:TabControlBase
Each deriving class knows the specific template-paths for loading FormViews templates.
The ObjectDataSource is connected with a DAL using a Select and an Update Method. The Select-Method works fine: When loading the CompositeControl the data of the DAL are shown in the Labels of the embedded FormView (ReadOnly-Template). When I'm switching to Edit Mode the data also are displayed in the TextBoxes (Edit-Template).
The problem occurs when I'm trying to update data using the "Save" - Button: The connected DAL-Method is calling properly, but the parameters all are NULL.Tree structure of this custom control:
Panel -
--- FormView
EditTemplate (ascx): Name, Name1, Segment
--- ObjectDataSource
--- CRUD-Button Stack: New, Edit, Delete, Save, Cancel, Copy, Print
All controls will be added dynamically in the base class "TabControlBase" within the overridden CreateChildControls - method. The CreateChildControls method is called by the deriving classes e.g. Employer after setting specific properties e.g. templates,
object data source methods etc.The control is placed in a simple abc.aspx-Page. What I detected so far on PostBack
- When I'm looking at the ViewState Collection within the OnLoad-method of the abc.aspx the ViewState-Collection is Null (Count = 0)
- It seems that the control tree is empty. I'm not able to find any control using a proper working recursive FindControlMethod
- Only the Page.Request Collection shows the expected controls
Conclusion for now:It seems that the CompositeControl "forgets" the values of the FormView TextBoxes on PostBack. It seems it has to do with ViewState Management.
Dynamically Create Controls And Save The Controls Values Across Postback?
Mar 25, 2011I allow the end user to create a tab control dynamically in an ASP.Net page by getting some details. For each and every tab added I get some settings -
Tab Title
Tab Content
Tab Footer link
So I get these details for each and every tab. The user is provided with a button 'Add Tab' to more one more tab. So I need to add one more tab settings panel in the page to get the tab settings. But doing so, I lose the values entered in the previously created dynamic tab settings panel. The user can add as many tabs and enter settings for each and every tab. Finally when they save it I build the tab control (based on their settings and content) and I render the control.
Since the controls are dynamic, I'm able to thing of two options -
Recreate previously created n - 1 tab settings panel while adding a nth tab. So across each and every postback I need to recreate the settings panel for each and every tab. But I don't know how to persist the values in this case.
Add the settings panel in the client side with simple html controls and on page UnLoad parse the controls -> Parse the settings -> Save it in a hidden field -> Get it in the server side. In this case I lose all the server side capabilities where I need to write validation scripts for the controls.