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].....
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].....
I am using asp.net.I have taken one Hidden value and assigning value to that hidden variable in Java-script.
aspx: <input type="hidden" runat="server" id="hdnProductionIds" value="0" name="hdnProductionIds" />
JS:document.getElementById("ctl00_ContentPlaceHolder1_hdnProductionIds").value = "123";
I want to use that hidden value in server side coding(vb.net). But while do-post back, hidden variable value becomes Zero (default value)
I'm using a datepicker for a field on my form, but the arrows are not visible. If I go to the location where they supposed to be, I can click them to change the month, but the arrows themselves are not visible.
View 1 RepliesAll I want to make user control visible on button click. I am getting object null typical error on following code. How do I make complete user Control visible or invisible using javascript?
[Code]...
I've got a panel - that's in a group box. All of this - with lots of other textboxes on labels - is in another panel (the big panel).I make the big panel visible and not visible based on selections made by the user.This small panel - that's in the group box. I cannot seem to make it appear.Even if I leave it VISIBLE at design time - the objects in it will not appear.Is there some kind of nesting problem that I'm not aware of!
View 9 RepliesI have five menu items that i have created as a user control and placed on the master page. Now i want one of the menu items to be visible only for particular user role and not visible for others. Here is what I did. Its not working though.
[Code]...
I'm having an odd problem when making a form visible and not visible and it not continuing to function. Here is what I have happening. I have a main form (frmMain) that is an MDIParent. On this form I have a menu to open a second form (frmCalculate) and populate a listview from Items in the database.
As I click or select items in the listview on frmCalculate the tag is read and data is pulled based on the id stored in that tag and fills in various fields on the form. This works great. However, I also have a context menu attached to the listview that allows me to perform a "what if" scenerio on the items I am calculating. When I select this menu, I hide the frmCalculate and open the frmWhatIf form where I can mess around with values on the item I had hilighted in the listview on frmCalculate. Nothing is pulled from or written back to the database here, all the information is filled in from fields on frmCalculate. It just allows me to look at rising costs and how they will affect my margins.... anyway.
If I then close frmWhatIf, it brings my frmCalculate back by setting its visible propery to true (never closed frmCalculate, just hid it). At this point if I click an item in the listview I get an exception for a null reference. IF however I never hide frmCalculate, I can open and close frmWhatIF without ever having an issue. Why do I lose the functionality to select items just by hiding and unhiding the form? As a test I added two menus to the toolbar on frmMain one called hide and one called show. I then opened frmCalculate with original menu item to populate the listview and selected a few items to test that it was working and then using the hide menu I made the form invisible and the show button to bring it back. This yielded the same exception so without even opening frmWhatIf the problem still occurs.
I have placed several PictureBox Images of different colored dots(which represent lights) on an image of a Christmas Tree. I can make the lights randomly flash using a randomGenerator and a Select case statement. However, the code is very long. There are 67 lights on this tree and the code is 71 pages long. There has to be an easier way to do this. So far I have tried the following with two images of lights just to see if it would work and it does not work:
Dim picLight(2) As
Boolean
For intX
[code]....
I have written a web usercontrol (ascx). Inside, there is a Panel that I want to show/hide on click of a hyperlink inside the usercontrol. Normally, this is easy just by doing something like this (the onclick attribute is added to the hyperlink on prerender):
[Code]...
Below is the exception code info. when I try to make form visible for the first time from another form then I get an exception code. something like 'a required variable not set'
Quote:
CODE:
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?
I have two listitems and the postback and run a function.
[Code]....
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?
View 1 RepliesI'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.
View 1 RepliesI 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).
View 1 RepliesI 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?
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]....
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
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].....
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.
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
View 2 RepliesI 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.
View 2 RepliesI'm creating a Website and I noticed that when the page reloads due to a postback, My variables all are unloaded so I have a Null variable,
For Example I'd Declare a String With an initial value of "" then later in the code set it to "Some Value", when a button is clicked to cause a postback, this value then becomes "" again
Is there some way to preserve variable so their values remain the same after a postback
When the page is loaded the following code is invoke
Page load
Dim products As New LinkButton
Products.Text = "Products"
testPanel.Controls.Add(products)
AddHandler products.Click, AddressOf getProducts
[Code] ......
What I want to achieve when the page load I link is create Products when i click on products link it invoke an event handler call getProducts. Getproducts will loop in the database to fetch all record then it will create a link for each product name when i click on the product name it should invoke another event. My problem is how can I re add control after every postback.
I have a child aspx page in an iFrame. There are a few textboxes, which are populated in the page load event.
There is also a LinkButton which the user clicks when s/he is finished editing the fields. There are some javascript functions and other things going on, so a full postback (ie: asp button) is out of the question.
Problem is, I need to reference the textboxes NEW values (user changes) after the linkbutton is clicked.
After playing with the interface a bit further, I realized the Page_Load event was firing as soon as the LinkButton was clicked. Of course this is where the data is initially loaded, so any changes the user made is immediately written over. Current plan of attack is to create an IsLoaded cookie value and check if true before the mentioned code executes.
I have a button which calls stored procedure and binds gridview.I found a code on stackoverflow for top alert bar like this:
[Code]...
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?
View 2 RepliesI'm having some problems in persisting the viewstate on postback for a Control (vb.net)
here's some code i've put in my control[code]...
I'm setting EnableViewState = "true" everywhere i can, but still no result. Do i really need to set those properties here. (ViewStateMode and EnableViewState) If not, where should i handle this and what is the difference between those properties?
I have a datalist control that is not retaining it values during postback when the control causing the postback is outside of the update panel that the Datalist resides in. I have verified that viewstate is on for that usercontrol as well as all its parent controls. My basic situation is that I have a Datalist that contains a user control on a page. When the user selects several rows in a grid and presses a button, a datatable is filled on the backend and assigned to the Datalist which has its item template set to the UserControl.
On ItemDataBound I set specific properties in the control which customize the messages on that control to the specific item. This is then popped up using the AJAX Control Toolkit Modal Popup[ Extender. When the user presses Save the whole page posts back. Data is collected from the user controls and saved to the DB and the popup disappears. The issue I am currently having is that the DataList has 0 items when the save button is pressed instead of the appropriate number. THis issue just started appearing after we upgraded from .NET 2.0 to .NET 3.5.