I'm trying to put a updateprogress into a webpage where selection from the dropdownlist causes postback. Works out well except that on the first postback, the gif image shows on the leftside rather than on the center. On succeeding postback, it will show on the centre where I intend it to be. Below is my code:
[Code]....
I have a problem with an amimated gif inside an UpdateProgress which is linked to an UpdatePanel. Basically the gif displays for a few seconds then justs stops and then a few seconds later the page displays. Reading some other posts it and putting in some debug info I can guess it is because the postback is returning a lot of markup, so it seems the postback has stopped and the gif freezes while the markup is being sent/being rendered. Is there anyway to keep the gif 'running' while all this markup is doing its thing?
View 3 RepliesIn a nutshell I have an UpdatePanel with an UpdateProgress item, first postback checks for warnings, if there are any they will be be displayed to the user as a JavaScript 'confirm' box. If the user clicks OK the next postback occurs to commit the change.
The UpdateProgress loading notification appears on the first postback but not on the second, even though both of them function correctly. The buttons that trigger both postbacks are async postback triggers in the update panel, and both are inside the ContentTemplate.
I have a search page with a TextBox that allows someone to type in a search term and press enter. (Which fires TextChanged). I have a DropDownList that specifies the kind of search that will be performed. It is defined in the markup as follows:
<asp:DropDownList ID="lstSearchType" runat="server" AutoPostBack="false">
<asp:ListItem Value="0">Last, First</asp:ListItem>
<asp:ListItem Value="1">Last</asp:ListItem>
<asp:ListItem Value="2">First</asp:ListItem>
<asp:ListItem Value="3">Liberty ID</asp:ListItem>
<asp:ListItem Value="4">E-mail</asp:ListItem>
<asp:ListItem Value="5">Telephone</asp:ListItem>
<asp:ListItem Value="6">Birthday (exact m/d/yyyy)</asp:ListItem>
<asp:ListItem Value="7">SSN (exact ###-##-####)</asp:ListItem>
<asp:ListItem Value="8">Address</asp:ListItem>
</asp:DropDownList>
As you can see, AutoPostBack is set to false, and there is no event hookup.
Pressing enter fires the OnTextChanged event for the TextBox, which performs a search and updates a GridView in an UpdatePanel. This UpdatePanel has its UpdateMode set to conditional and has one trigger: the TextChanged event of the search TextBox.
It's very simple.
And it works beautifully, almost.
Whenever I change the search type, the very next search does a full postback. All subsequent searches do partial postbacks (as desired) unless I change the search type again.
There is one exception to this rule: if I load the page and immediately change the search type, it doesn't do a full postback. So the first change of the DropDownList before any postback (full or partial) does not trigger a full postback.
Full Disclosure: I'm doing a lot of JavaScript to change the appearance of the gridview during async requests. I don't detail it here because it seems unrelated. This problem only occurs when a DropDownList with no JavaScript wired up is changed.
I have been having some trouble with dropdown lists reverting back to selecting the initial item in the list after a postback once a selection has been made from the dropdown list. I have read up on this and found out that a "if not ispostback then" is required.This works fine when I add in all the items in the dropdown list manually like:
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Not IsPostBack Then
ddl1.Items.Add("Select...") [code]....
However, I have over 250 items and so it is far more efficient for me to load then in by using part of a multidimensional array which is created from a text file - Definitive database.txt. I have been using the following code to do so:
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Not IsPostBack Then
'loads the definitive database array[code]...
This loads all the items into the dropdown list perfectly, but now every time a selection is made, it reverts back to the inital item on postback even though i have included the "if not ispostback then" part.
I am trying to using update panel that have upload file when it click and showing the updateprogress
Here is the design
<asp:ScriptManager ID="ScriptManager1" runat="server">
</asp:ScriptManager>
<asp:UpdateProgress ID="UpdateProgress1" runat="server" AssociatedUpdatePanelID="upTest">
<ProgressTemplate>
Updating!
[Code] ...
So how I can get the value of the file once the button click?
I have two dropdownlists on my page that are related to one another, and are built dynamically. I did not write the original code, but I believe it is using AJAX so the whole page doesn't postback when the ddl selection changes. The first ddl is Status and the second is ContractType. Here is the code for the event handler:
Code:
protected void Status_SelectedIndexChanged(object sender, EventArgs e)
{
try
{
DropDownList status = (DropDownList)sender;
string selectedStatusId = status.SelectedItem.Value;
[Code] ....
Here is some of my debugging info:
? view.Count
4
? view.Table.Rows.Count
20
? contractTypeDropDown.SelectedValue
[Code] .....
I commented out the event handler since this snapshot, just to see what would happen, but when I was hitting it you can see what ex.Message was. I don't understand why it says the SelectedValue is invalid when I see the selected value is "E " and that is one of the four items in the ddl.
at last project i need to deploy cascading dropdownlist without using web serive or cascadingDropDownList Extender
i try to do this using updatepanel :D this work , but at many times that apear my computer and my internet Explorer as busy and hang and i can not do any thing untill populate the second dropdownlist :(
is there any way to avoid that and to view a wait message until populate the second dropdownlist , i mean is there a sample code for doing that
here is my code
[Code]....
I have a webform that works the following way:
1. Button_openPanel will display panel Step2Panel through ModalPopupExtenderStep2.
2. Button_runThread (inside Step2Panel) will close Step2Panel and will then run a lengthy process server-side. This lengthy server-side process will cause the UpdateProgress control to be displayed.
Similar to the ModalPopup, I want to disable the whole page while the UpdateProgress control (with its animation gif) is running. Currently, the UpdateProgress is displayed, but I can click Button_openPanel (or anything else) which will cause the application to break.
Is this possible?
This is basically all the code. I stripped anything that was unneeded:
[Code]....
The code-behind is basically this:
[Code]....
Everything's working pretty good now, but I need to disable everything while the time-consuming process is running and UpdateProgress is displayed.
I was thinking of displaying the UpdateProgress control as a a sort of ModalPopup, but I'm not sure if it's possible. If not, then the alternative would be to disable Button_openPanel while the time-consuming process is running and UpdateProgress is displayed.
Is there a way that if certain items are selected in a DropDownList to fire up a ModalPopupBox. Basically if any value except for one value is selected, I want a popup warning them, are you sure?
I have the Popup Frame, I have the Popup Extender. I just don't know how to wire the two together using the TargetControlID. I don't want the popup to just automatically come up when the dropdownlist is selected but only if its not value "X".
I figured instead of doing this in parallel, I could check it after the fact when the form is posted using the extender.show() command but my program is crashing because the targetcontrolid for my modalpopupextender is null. I don't have a targetcontrolID in that case?
i have searched on google and got an article [URL] keep selected file in fileupload control even after page postback. But it's not working at all. So is there any way through which we can keep selected files in fileupload even after page postback.?
View 1 RepliesThis is likely a n00b question, but I can't seem to find any info on how to solve it. Here's the scenario:
I have a Textbox and a RadioButtonList in an UpdatePanel, both with AutoPostBack turned on (they need to be, can't turn it off on the text box))
The user enters some text in to the textbox, then clicks one of the Items in the radio button list.
Because the textbox post back is executing, the radio button is losing the value that the user selected.
How can I workaround this?
I have a dropdown list which has states retrieved from a table. I want to have an option to add new states.. I have added a list item NEW in the dropdown. When I click on NEW i should get a pop up to add a new state and goes in the table.
View 1 RepliesI have used jquery plugin for multiselect dropdown from the [URL] .... and when I submit the page It show nothing selected when post back from server What should I do ?
View 1 Replieslike to display infowindow as it is in google maps on selection of Dropdownlist with data dynamically binded using VB.net can anybody provide me the code.
View 1 RepliesHow to open Popup Window from dropdown list ...... [URL] .... Like this link but open in dropdown selected item.
View 1 RepliesI want to generate a modalpop by selecting the item either from menu tool or the dropdownlist tool using asp.net c#.
View 1 RepliesI have dynamically popute the data in Dropdownlist(Countries) and the On selected index event of Dropdownlist there is noeed to bind /populate the Checkbox list from database depending on the selections made from the Dropdownlist.
For example If I select Gujrata then all the cities of Gujrat should be visible and bounded to the check box list.
2) Once the checkbox list is bounded with data from the database, We need to select the checkbox from the checkboxlist and pass tyhe selected text of all the selected checkboxes fro the checkbox list as comma seperated values to database and then I need to Display in the Grid.
Below is my code for Dynamically populated/Bind DropDown list and get the States:
ASPX:
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="MachineCode.aspx.cs" Inherits="SampleApp.MachineCode" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script type="text/javascript">
[Code] .....
i have some time consuming serverside function so i try to execute each function step by step and inform the user about the progress.
So my approach was:
create a visible button that performs an asynchronous postback and handle the click event on serverside execute the first function update a Label to inform the user if the function was executed successfully register a javascript that triggers the click-event of a second invisible(Style="display: none") button that is also registered as asynchronous trigger for the UpdatePanel send page back to client and execute script to click the invisible button handle the button-click, inform user, register js for third invisible button, execute button-click and so on...
But the problem is that the UpdateProgress-control will not be shown although i've set the AssociatedUpdatePanelID correctly. The functions are all triggered correctly and the labels are getting updated, only the UpdateProgress keeps invisible.
[Code]....
i have 2 DDL in my page that when users select item from ddldistric1 item in ddlcity1 will change these are my code
protected void DDLcity1_SelectedIndexChanged(object sender, EventArgs e)
{
BindDistrictC();
}
private void BindDistrictC()
[code]...
I am having two dropdownlist in my project,one dropdownlist for empid, another dropdownlist for month, if the user select the empid, the values are retrieved in the textbox.
In the second dropdownlist, if the user select the month in the dropdownlist it will display the leave details, its all working fine, if the user again select the first dropdownlist that means empid, I want to show the second dropdownlist as select month, how can do this.....
i have 3 drop down list in my page
1-ddlzone1
2-ddldistrict1
3-ddlstore1
this is ddlzone1 code
protected void DDLzone1_SelectedIndexChanged(object sender, EventArgs e) {
DDLstore1.Items.Clear();
DDLstore1.Items.Add(new ListItem("select center", ""));
DDLstore1.AppendDataBoundItems = true;
SqlCommand _cmd = new SqlCommand("selectcenter", _cn);
[CODE].....
I have a number of cascading dropdownlist controls on a page. The results in dropdownlist2 are dependent on the results in dropdownlist1, pretty basic stuff.
I now would like to eliminate the terrible postback or refresh of the page that occurs after the SelectedIndexChanged event fires on dropdownlist1, is it possible to do that in Ajax?
What I want the results in dropdownlist2 to populate without the obvious refresh of the page.
I have a dropdownlist on my page with dates such as 1/1/2013, 2/1/2013, etc.
Then there is a second ddl.
If the date in ddl #1 is before 1/10/2013 I want to enable ddl #2.
If the date in ddl #1 is on or after 1/10/2013 I want to either disable ddl #2 or hide it (whichever's easier).
Disabling ddl #2 based on the selected date is a new requirement so I am enhancing the existing code. Obviously I want to do this without a postback, but I don't know what is the best way. I am trying to understand what an AsyncPostBackTrigger is because this is the existing code:
Code:
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:dropdownlist id="EffectiveDateDropDown" runat="server"></asp:dropdownlist>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="QuoteType"
EventName="SelectedIndexChanged" />
</Triggers>
</asp:UpdatePanel>
It wants to do something when the selected index is changed? This exists in the code-behind, but I set a breakpoint and never hit it:
Code:
protected void QuoteType_SelectedIndexChanged(object sender, EventArgs e)
{
try
{
}
catch (Exception err)
{
this.PublishError(err);
}
}
I have dropdownlist autopostback and AsyncFileUpload both inside UpdatePanel After I selected Item in dropdownlist to postback,AsyncFileUpload is changed it's size and it can't upload After Dropdownlist postback
This is my code
[Code]....