Stop GridView From Postback?

Mar 10, 2009

on my aspx page I have 4 dropdowns and a gridview.Each dropdown is populated based on previous dropdown selection (each of the dropdowns are autopostback=true)and the grid suppose to display data when all dropdowns are selected. The bad thing is that the grid gets repopulated whenever any of the dropdown selected.So when a user select first dropdown, the grid displays data, then it repopulated again on second dropdown postback and so on...I would like to have a user to select all values in dropdowns and after that on a click of a button show the datagrid.How do I do that?

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Embedded Gridview Postback Into EditMode?

Jul 5, 2011

I have a page I'm working on with a Gridview embedded into a Gridview. The page uses templates to fill itself out, including the edittemplate for rows. When the row is in edit mode, 3 of the cells contain dropdownlists.I'm trying to filter these dropdownlists to prevent conflicts. The problem is that when the page autoposts back, the row is no longer in edit mode. Is it possible to persist edit mode on that row through a postback and apply the filter I need to?

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Gridview Showheaderwhenempty Works Only In Postback

Apr 2, 2012

I realized that ShowHeaderWhenEmpty only works in PostBacks. Is there any way to make it work once the page is loaded? [code]When I have no info to show, the above message only appears in PostBacks, no when the page is loaded.

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How To Disable Postback On Click Of A Button In The Gridview

Jul 6, 2010

i am working on vb.net.When i click a button in one of the row in the gridview, i am called a function to delete the data of tha row. it is working but it is getting postback.i have placed gridview inside asp updatepanel. How to prevent postback.

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Javascript - Set JQuery Toggle To Be Open On ASP.Net Gridview Postback

May 12, 2011

I have a jQuery 'toggle' function on a table that I am using in conjunction with an asp.net gridview. I have pagination on my gridview and when I click on the next page, it posts back and therefore closes the Toggle/Table - I need a way of keeping it open. I have had a similar issue in the past with the Accordion function but resolved it via this method

<asp:HiddenField ID="hidAccordionIndex" runat="server" Value="0" />
<script language="javascript" type="text/javascript">
$(function () {

[Code].....

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Make GridView Work Like DropDownList Where Can Enable Postback?

Aug 28, 2009

How can I make GridView work like DropDownList where you can Enable Postback

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Make GridView Work Like DropDownList Where Can Enable Auto-Postback?

Aug 31, 2009

How can I make GridView work like DropDownList where you can Enable Auto Postback

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.net - Stop Word Wrap In A Gridview?

May 26, 2009

I've tried changing the RowStyle Wrap property and every Wrap property in the grid. How do I stop word wrap in a Gridview no matter what size the Row's Text Length is?

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Stop Gridview From Treating "-" As Punctuation?

Sep 22, 2010

I have a gridview which in one column is displaying MAC addresses. Instead of displaying them in one row, its putting them in a column as wide as the "MAC" header column. If I remove the "-"'s, then it extends the column width and displays it as one row. Is there any way to have this happen with the "-"'s included?[code]...

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Stopping Multiple Timers - Stop Button To Stop Each Timer One At A Time

Feb 26, 2009

Alright, so I'm still working on the slot machine. I have three timers all independently going for my three "wheels" of the slot machine.

My issue, is that I'm trying to make a Stop button to stop each timer one at a time, and I'm not understanding why this code isn't working. The logic completely makes sense, and the first "wheel" stops when I click the button, however, it doesnt appear to stop the other two timers.

CODE:

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VS 2008 Stop Threadpool With A Stop Button?

Dec 24, 2009

I have a simple application that use thread pool to read a file and input the data into a listbox. I want to be able to stop threadpool from running after clicking a stop button. How do I stop threadpool? Here is the code for my application below:

Imports System.Threading
Public Class Form1
Private Delegate Sub StringDelegate(ByVal text As String)

[Code]....

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VS 2010 : Use A Stop Button To Stop A Loop?

Dec 7, 2009

I created a form and have the variable inputs for 4 motor run statements. Then with a start button the script starts and it is surrounded by a for next statement to loop 10 times. It works fine but if i need to stop the execution of the script with a stop button. I put the stop in a new section but of course does not work to do a motor stop. It just causes the exe to not respond till the loop is complete. Just need to be able to stop the Run1_Click button section.

Edit:I do not mind if it finishes the 4 motor run commands and then stops execution of the loop. So need to figure out a way to trigger a stop from a button on the form to stop the cycle. For the future the loop will be a variable integer input so 10 will not be the standard.

Edit::Does a ' Do ' statement sound like the thing to use? If so how and where would I place that? Have a Stop button on the form and it would stop after the 4th motor run command.

#End Region
Declare Function InitStp Lib "stp.dll" () As Integer
Declare Function RunMotor1 Lib "stp.dll" (ByVal steps As Integer, ByVal interval As Integer, ByVal direction As Integer, ByVal outputs As Integer) As Boolean

[code]....

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VS 2010 Stop A Block Of Code Executing When User Clicks "Stop"?

Mar 1, 2011

I have a START and STOP button and when the user clicks "start" the program does a whole bunch of calculations and all. However, I noticed that when I was testing the program I clicked STOP the program continues to execute stuff.

My START code is basically a while loop that iteratively does some calculations.

So I just put a boolean variable as the while condition and when user clicks stop its set to false and when user clicks start its set to true. However, when I click stop, the condition is set to false yes but it still executes all the code until the condition is re-evaluated right...so my question is how can I get out of the while loop when user instantly clicks "stop"?

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Make An Application With A Start Button And A Stop Button On A Stop Watch Program?

Nov 1, 2009

I am trying to make an application with a start button and a stop button on a stop watch program. These are the codes I am using but my seconds on the stop watch don't start.

Public Form Dim intSecond As Integer = 0
Form 1
Private
Dim intSecond As Integer = 0
intSecond +=1

[Code]...

After I write my code and try to run the program, the seconds will not start,

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Record The Screen When My User Clicks Start, And Stop Recording When He Clicks Stop?

Jul 27, 2008

I need to record the screen when my user clicks start, and stop recording when he clicks stop.I've searched for a while on this subject, and I have found nothing.I want to do this without adding any files to my project, I just want to use some built in function in Visual Basic, and start recording, or even take a snapshot and add it to an AVI file or something...These are some sites I have found:

http:[url]......

This code is in VB6, but I am not sure how to even start using it?

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Asp.net - Show Pop Up Menu From Database In Gridview On Each Gridview Row Items?

Dec 6, 2010

How to show pop up menu from database in gridview on each gridview row items ?Example of this is : http:[url].....Move your cursor to Departure time and arrival time...a want this type of popup in gridview items....which fetch entries from database..

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Manipulate A Gridview In Asp.net When Columns In Gridview Are Generated During Runtime

Sep 24, 2009

In my application,i have a gridview in which columns are created at runtime.Actually these columns are created when i am entering data in a database table.[code]where Column1,Column2,column3 may vary during runtime.i need to enter values to these columns during runtime.But i cant bind these columns because these are created during runtime.The first column "Description" will not change.It will remain constant.For each description, there will be values for each column.At last these data will be saved to the database.How to add columns in the gridview during runtime?

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.net - ASP.NET Keep Fileupload After Postback?

Jul 13, 2010

I'm writing an intranet ASP.NET page using VB.NET. I've run into a particularly nasty problem dealing with handling file uploads. I'll do my best to explain the problem, and perhaps someone can help.

My problem is almost a duplicate of this one, or this one, except (other than the filename) I don't care about sending the file to the server until the other data has been reviewed. here's the situation:

Joe Q. Dataentry inputs some data into several fields. The first 3 are drop down, and when he changes the selection, a postback event is fired that queries a database for valid entries for the other drop down selections. After selecting the values, he inputs some other data, chooses a file to accompany the data and clicks the "Update" button. When he hits the button, it fires a postback event that sends the current data to the server to be validated. The data will create a change in the database, so he is presented with a view of the current state, and what it will look like when his changes are made. He can now either confirm or cancel the operation for whatever reason.

Part of the data he will see involves the extension of the file which may be a PDF, or could also be some image file or other document.

Now here's where my problem is - on each postback event, the fileupload dialog is cleared. I was getting around it by creating a temporary file on the first postback and then renaming if he clicks OK or deleting on Cancel... but I need to do a variety of things, based on the previous state of data and the filename. I've tried to keep some session variables to retain the filename, and that works OK for just renaming the file, but for what I need to do it gets unwieldy.

What I want to do is be able to have the postback event to present the changes, and then when the user clicks "OK", submit the file. Is there any possible way to do that?

One of my thoughts was to do some of the validation client-side (I'm already re-validating server side so I'm not too worried about data security there), but I don't know how I could get the information from the database query. It appears that what I want to do is prevent a certain button from firing a full postback. Is there any way to do that?I have an update panel on the page already - is there any way for the button to only post what's in the update panel?

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Asp.net - Get Value Of Listitem On Postback

Nov 11, 2010

I have two listitems and the postback and run a function.

[Code]....

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ASP.Net Menu On Postback?

Feb 22, 2012

I have the Menu Control in Visual Studio 2010 is set up horizontal in my Master page but on same pages when the page loads and on postback with datasources that take a few seconds to return data the menu spreads vertically down the page. How can I fix this problem?

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Force An ASP Page To Postback?

Feb 18, 2009

I've got a handful of dynamic controls populating an ASP page, with VB.NET in the back-end.What I need is when the user changes the .TEXT value of a textbox and the page posts back, the .TEXT value of a Table Cell changes to reflect that change (it multiplies the value of the textbox by the value of another cell).But a Table Cell can't be set to AutoPostBack, and I can't for the life of me figure out how to programmatically refresh the page (force a postback) in the TextChanged event for the textbox.

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.net - Usercontrol And Page Postback?

Aug 8, 2011

I have a page with three radio buttons and a calendar usercontrol. The radio buttons have autopostback and depending on which one you click it should change the calendar availabilities based on the selected index.The problem is that the page load of the calendar is executing first before the selected index change (where I am setting the needed id).

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Asp.net - View State After Postback VB?

Apr 12, 2011

I have a label's value that is posted back from a previous page and I want to use this label to do a simple calculation in the current page, but when I do the calculation the page (refreshed) the value of this label and automatically deleted the value (Since there would be no value in postback when it refreshed).

Here is the code behind file:

Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Label2.Text = Request.Form("Hidden1")
End Sub

and here where I want to use the label

Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim Stotal As String
Stotal = Val(Label2.Text) * 10
Label3.Text = Stotal
End Sub

How can I save the value in the page via view state or any other method?

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Asp.net String Not Retained On Postback?

Nov 9, 2010

A user logs in by inserting their user id and password.If they don't have an email address assigned to their login details they are asked to submit one before they can continue.They then continue to the home page in a logged in state.The trouble I'm having is that the user id and password are not retained when they submit their email address so the login fails.

Here's the code...

Dim userid as String
Dim password as String
Sub Page_Load(ByVal Sender as Object, ByVal E as EventArgs)

[code]....

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Do Postback Dynamically In Program?

Jun 4, 2012

Is it possible to do postback dynamically in vb.net or c#.net?

THere is a asp button (let say buttonA) if i click buttonA it has to do some actions and then trigger postback

postback should not be triggered onclicking a button . only after performing some actions it has to trigger postback

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Dynamic UserControls On PostBack Asp.Net?

Sep 12, 2011

I created an item user_control that has a textbox, button, etc. which will intentionally collect the total quantity of items the user wants.

I dynamically create a few intances of user_control on page_load. If you click the add button for the item quantity it will add to a session variable. however when the user enters a different quantity in the textbox and clicks the add button the total is of the original value of the textbox.

How to get the value the the user has typed in to the textbox to add to total???

I've create a stripped down example below: [UserControl] [Page] [CodeBehind]

UserControl...
<%@ Control Language="vb" AutoEventWireup="false" CodeBehind="BomItem.ascx.vb" Inherits="DynamicUserControl.BomItem" %>
<style type="text/css">

[Code].....

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How To Make DropdownList No Postback

Sep 12, 2011

How can I make dropdownlist no postback - I have a dropdownlist which I put a code in selected indexchanged - basically for every indexchanged the code will connect to sql and get values then populate textboxes with values.

Here is my code
<asp:DropDownList ID="ddlSalesOrg" runat="server" Style="width: 200px;"
AutoPostBack="true" />

Obviously when I remove the autopostback="true" - then indexchanged will not function as expected.

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Javascript - Keep Div Visible On Postback?

Feb 22, 2011

I have a div which needs to be hidden when the page first loads. If the user then clicks the "btnShowDiv" button, it should then become visible.The problem I have is that, once it has become visible I need it to stay visible. At the moment, whenever I click on an asp button the div reloads and becomes hidden again.

<DIV id="myDiv" style="display:none;">
<label>some text</label>
</DIV>[code].....

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Keep The Values Of Checkboxes After Postback?

Feb 29, 2012

I have a checkbox in datalist, after the button is clicked(postback) the value of checkbox is cleared. For example, if the checkbox in datalist is checked, when the button is clicked the checkbox appears unchecked when getting it's value

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Populating Data On Postback?

Jun 8, 2012

I would like to know if i had two columns from a database called SellerID and Product letter in a table called product, and on a new form i want to be able to combine the columns i.e if the user enters the sellerId and product ID e.g 1A in a SellerProductID in a new table on a new for i want the program to do a postback and have the Description Field be populated with the data from the Products ID Therefore the SellerID + Product letter = SellerProductID and it should select the description in the description field.

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