Automatically Rebind Controls On Postback?

Dec 29, 2010

Is there a flag or property value I can set to have my controls re-bind on every page load, instead of just the initial one? I'm still very new to ASP.NET, so I would like to do it properly (if such a way exists) before resorting to the first thing that "works".

I am working on a simple WebForms page, which boils down to a few SQLDataSource-bound Repeaters; for example:

<asp:Repeater ID="ExampleRepeater" runat="server" DataSourceID="ExampleDataSource"
OnItemDataBound="ExampleRepeater_ItemDataBound">
<ItemTemplate>
<asp:Label ID="DataboundControlID" runat="server" Text='<%# Eval("ExampleColumnName")%>' />
</ItemTemplate>
</asp:Repeater>
<asp:SqlDataSource ID="ExampleDataSource" runat="server" ConnectionString="example_connection_string"
SelectCommand="ExampleStoredProcedure" SelectCommandType="StoredProcedure">
<SelectParameters>
<asp:Parameter DefaultValue="exampleValue" Name="parameter1" Type="String" />
</SelectParameters>
</asp:SqlDataSource>

After the user has interacted with my page, they can initiate a postback which will change the state of the database. I'd like the postback'ed page to reflect the changes to the database.

View 2 Replies


Similar Messages:

Forms Data Controls :: Rebind Datalist After Upload An Image Using Jquery?

Sep 21, 2010

I'm using a jquery plugin called uploadify to upload images to my database. I'd like my datalist to be auto-rebind after the images' been uploaded so people could see the changes immediately. Also because this is a feature for admin there is a delete button in the datalist. I used updatePanel for this.

I put __doPostBack('" + upnlUploaded.ClientID + "','') to the javascript so when Images have been uploaded the update panel will postback.

I also have the following two lines to make it working...

<asp:UpdatePanel ID="upnlUploaded" runat="server" UpdateMode="Conditional" OnLoad="upnlUploaded_Load"> <%--upnlUploaded_Load --%>

View 4 Replies

Send Some Form Entries Resulting In A Postback To Be Mailed Automatically

Sep 14, 2010

i want to send a some form entries resulting in a postback to be mailed automatically with my gmail account to the target mail id entered by the user with asp.net - c#?

View 2 Replies

Web Forms :: On Page Postback Last Clicked Button Fires Its Click Event Automatically?

Jul 15, 2010

I have page on which I've a login control in which I've a subnit button. The problem is this that when I refresh the that page the submit button or any button that was clicked last before page refresh gets its click event automatically fired.

View 1 Replies

Rebind Same Gridview Again?

Nov 23, 2010

I have ASP.NET page, Page1 and there is a gridview. There is also a linkbutton which takes user to Page2. And, once user clicks a button on Page2, the page is redirecting to Page1.

I want to rebind the gridview on the Page1 with previous gridview again upon coming back from Page2. So I am passing the gridview in the Session variables, and bind it to same gridview again, but it looks like it's not binding (No gridview displayed).

Is there any way I could preserve the gridview and rebind it upon coming back from another page?

View 3 Replies

Rebind Sqldasource On Controlparameter Change?

Jan 11, 2011

I have a gridview connected to sqldatasource and regular textbox. In sqldatasource I defined selectparameters controlparameter to textbox.I'm trying to rebind gridview when textbox text is changed. So question is how can I rebind sqldatasource?

View 3 Replies

Way To Bind Or Rebind Data To Chart

Jun 16, 2010

The binding of the data to chart switches according to the radio button selection, but it shows only the data that is selected for the first radio button

View 6 Replies

AJAX :: Rebind Datalist In Web Method?

Feb 27, 2010

i am doing a drop and drag operation that calls a webmethod to do a data insert on drop. I am trying to figure out the best way to rebind the datalist that i am getting my items from to show accurate items. Should i just remove it using javascript? or rerun the binding?

View 1 Replies

AJAX :: Can't Rebind Data Control On Jquery

Nov 8, 2010

I have an jquery ajax event that fires and sends some variables to a user control. the user control (which displays a repeater) takes these values, runs a query, and returns a list for binding to it's repeater. For some reason it wont let me bind to the repeater. It just quits the debugger?

View 6 Replies

How To Prevent Rebind For The DetailsView When Hide Or Show Columns

Mar 6, 2011

I have a DetailsView control, in edit mode, I want to hide and show fields based on a DropDownList's value inside it (the DropDownList makes a postback).

The problem is that when a hide and the show operation is maked, the DetailsView control will make a rebind for it and all the filled fields are cleared!

How can I prevent this behaviour?

View 1 Replies

How To Rebind The Grid With Cached Dataset Stored In Session

Aug 19, 2010

I have a grid with one TemplateField which is a checkbox and say 2 bound fields.

In Page_Load on postback I rebind the grid with cached dataset stored in session. If user selects checkbox on the grid, upon postback i can iterate on the grid and get those checked values, everything works fine.

If I move the code of grid binding on postback to OnInit instead of Page_Load then i loose those user checked checkbox data. Why? Should the postback data not overlay on top of the grid after oninit?

It does work with page_load, I'm assuming that when i rebind the grid, I'm overlaying my data on grid which has postback data, since the checkbox column is not bound i do not overwrite postback data.

NOTE: viewstate is disabled on my grid, i bind data (stored in session) on everyback postback. Also something weird, when I'm using OnInit, on every postback i get the first page of the grid, no matter which page the postback was triggered.

View 3 Replies

AJAX :: Rebind A Asp:repeater From Client Side Code?

Apr 28, 2010

i appologise if thisis a silly question but i just want to be completely sure something is not possile before i tell this to my manager.

i am a WinForms programmer by trade, but i have put in charge of making a web site for our sales team, and web development is a new area for me. the web site is written in ASP.NET, C# code. it is finished, however they are complaining that there are too many page refreshes.

first of all, we have an SQL server with all our data in it. on the main web page, the user must select their country of interest from a DropDownList. when they do this, all our customers from that country are displayed in an html table, generated by a Repeater. i have set AutoPostBack on the country DropDownList to true, so each time the user selects a different country, the SelectedIndexChanged event handler is called, and in here i generate a new sql statement with the selected country, and re-bind the Repeater.

There are also a few other DropDownLists that do other 'filtering' stuff. for example, one DropDownList selects whether to display customers whose license expires soon (within a week), and another DropDownList filters the customers who currently have an open support case. All the DropDownLists have their AutoPostBack set to true, and in their SelectedIndexChanged event handler, i work out the sql based on the values of the DropDownLists, and re-bind the Repeater.

the problem with the above is that each time the user selects a different value from the DropDownList, the page refreshes, clearly because the AutoPostBack is set to true for them all. so to stop this i need to set AutoPostBack to false - but then of course the SelectedIndexChanged event handlers are not called, and so i have no place to rebind the repeater with my new sql statement.

so what i really need, is to be able to set a DropDownList's AutoPostBack to false, and handle the rebinding of the Repeater in some client-side event, which does NOT result in a postback. the Repeater will be bound by some sql, which is generated by the values in the DropDownLists (eg "SELECT * FROM custTable WHERE [Country]='" + CountryDropDownList.Text + "'"), so in this client-side event i need to be able to reference the asp.net controls.

View 1 Replies

Web Forms :: Listbox.Items[0].Selected Always To True / Rebind It In The Codebehind?

Jul 15, 2010

I have a ListBox declared like this in my aspx:

[Code]....

And I need to rebind it in the codebehind:

[Code]....

Then I want only the second item in the list to be selected

[Code]....

I don't want the first item to be selected, what do I miss?

View 7 Replies

If Hit The "Enter/Return" Key... Does That Automatically Cause A Postback

Oct 12, 2010

Being that I'm new to Web Development, I was wondering about something. If I hit the "Enter/Return" key....does that automatically cause a postback? If so, does that reinitialize the entire code-behind file?

I only ask because I declare and initialize a boolean variable, when I click a specific button, it sets the variable to "True" and then I enter data into a textbox control. After entering data, I hit the "Enter/Return" key and suddenly the variable isn't "True" anymore.

View 11 Replies

AJAX :: Datapager Displays Wrong Pages After Rebind Listview Using Updatepanel?

Mar 8, 2010

One thing I really don't like about Updatepanel is that I have to rebind almost all components in the page.

For example, I have to specify Eidit (Update) index (for inline editing) after rebind Listview using Update panel (after partial update).

It was too much job to rebind all components, so I redirected to same page and used Querystring to pass values in order to avoid all components to be updated based on one value...

If I update Listview using Updatepanel, the datapager has to be updated as well based on new Select SQL statement results.

Listview is pretty simple to update, using "Listview1.bind()" does the job.

Datapager is also in updatepanel, but it won't rebind with new results.

After post back, I'm still getting same Datapager as the orignal SQLDataSource.

In orger to "refresh" Datapager, what do I need to do??

I used to use iframe to do partial page update, but I'm having big problem using Updatepanel since simple rebind won't do the job.

View 5 Replies

JQuery :: Unbind Event And Rebind A New Event?

Feb 11, 2011

I try to unbind an event and then rebind a new event to an input element of type text. I think the unbind works, as teh default behavior is disabled, but the rebind not.

The code used:

[Code]....

The alert message doesn't show up on a keypress.

View 3 Replies

Forms Data Controls ::Postback Of Page Using JavaScript Postback's Slow Down The Page?

Sep 22, 2010

I'm at my wits end on this one looked/Searched/Played/Experimented and I need your help if you can.This page is going to be primarily used on a mobile device using Win Mobile 5 Need to Accomplish:Prevent Postback(serverside) of Page using JavaScript (Postback's slow down the page on mobile device)

[code]...

View 1 Replies

.net - Id In Controls Automatically Changes?

Jan 11, 2011

I'm writing a bit of jquery to access a dropdown, but .net automatically changes the id by adding ctl00$...

Is there any way to stop it from changing it?

View 2 Replies

DataSource Controls :: Automatically Set (local) Or SQLEXPRESS Which Using Currently?

Jun 14, 2010

I don't know, is this a right question to ask but my question is like is

1:- In my system sometimes i use sqlexpress(server name ".SqlExpress") and sometimes i use full version of sql server (server name "(local)").
2: What i wanted to do that is if i am using sqlexpress then server name should be passed as .SqlExpress and if i am sql server then sever name should be passed as (local).

View 2 Replies

DataSource Controls :: Automatically Restore .bak Files?

Apr 23, 2010

I want to restore .bak files from a server directory into database. The problem is it should behave automatically. Whenever a .bak file will be uploaded in that specified directory of the server that file will be restored. It may happen by using sql procedure which will restore all the .bak file which it will find at a certain time in that specified directory. Or, it may happen by using asp.net program which will run exclusively on server and call a sql procedure to restore a backup file whenever a backup file will come in that specified directory. But I am not getting how to figure out this ideas programetically.

View 2 Replies

DataSource Controls :: Inserting Primary Key Automatically?

Jan 19, 2010

My codes below are to insert a new data into the database. The thing is, this code can insert the primary key(DeviceID) into the database automatically but I cant seem to find the code to insert the primary key into the database. point me the statement that insert primary key(DeviceID)..

This is the snippet of the submit button event

Protected Sub SubmitDevice_Button_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles SubmitDevice_Button.Click If Session("canUploadBool") = False Then ClientScript.RegisterStartupScript(Me.GetType,
"canuploadScript", "")
Exit Sub
End
Dim insertNewProcess As String = "INSERT INTO Device_Table("
Dim deviceColumn As String = "DeviceRevision, CustomerName, CustomerCode, CustomerResponsibleEngineer, Date, DevicePartNumber, PackageType"
Dim deviceValue As String = ") VALUES ('01', '" + CustNameDropDownList.SelectedValue.ToUpper + "', '" + CustCodeLabel.Text + "', '" + CustomerResponsibleEngineerTextBox.Text.Trim.ToUpper + "', '" +
Format(Now, "dd-MMM-yyyy").ToUpper + "', '" + DevicePartNumberTextBox.Text.Trim.ToUpper + "', '" + PackageTypeTextBox.Text.Trim.ToUpper + "'"

View 4 Replies

Controls :: Automatically Send BirthDay SMS To Users

Dec 27, 2012

I want to create B'day schedule ...as per birthdate i wnt to send sms ...by using asp.net.......how cna i do ds..?

View 1 Replies

Controls :: Automatically Add Rows To PDF Table Using ITextSharp And C#

Jan 27, 2014

I would like to know if is possible to create a table with itextsharp that if the is necessary auto-create a new row in the pdf ...

View 1 Replies

Controls :: Send Scheduled SMS Automatically From Website

Jul 18, 2013

I am a .net developer. I am developing an application in which i need to send scheduled sms to users mobile number which is stored in database(SQl Server 2008) automatically.

I have already buy sms gateway. How can I do this. Is there any way to call a asp.net page automatically periodically.?

View 1 Replies

Forms Data Controls :: Automatically Add Column To Grid From Db?

Feb 6, 2011

How add programatily or dynamic column in grid view

i have an sql table of 3 colums

ID,Product,Week

every time i insert a a row inmy database table

i want to add this column to gridview

in another way gridview will be expandable

this is the layout of the grid:

ID ProductName Week1

Second time i added week2 to database row grid layout like this:

ID ProductName Week1 Week2 (here i want to add week2 column because a new row is inserted to my sql table)

grid now have 5 columns (the fifth is week5)

ID ProductName Week1 Week2 week5

View 10 Replies







Copyrights 2005-15 www.BigResource.com, All rights reserved