A little pseudo code to provide some background:I have an ASPX with a placeholder and a buttonWhen the button is clicked it adds a web user control (uc1) to my placeholderThe uc has a button
View 1 RepliesI'm working with a website written in aspx.net over vb. I have a placeHolder, and I create a table of names inside this PlaceHolder, each name has an HtmlInputCheckBox next to it. Im doing this in the aspx.vb file, when the page is uploading. Then, when the user wants to send mail, he presses a button and than I need to access the checkboxes, and I'm having problems with this, the Sub doesn't know the checkBox object.
Why this code doesn't work inside UpdatePanel controls I have in webform : four CheckBoxes and one TextBox
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
[Code]...
Coding was working fine outside the UpdatePanel but not working inside update panel what is wrong with it?
I have a UserControl inside UpdatePanel, how to update the user control when clicking a button
View 1 RepliesI'm trying to speed up my Repeater so that not as much HTML has to be resent via the AJAX UpdatePanel on each call.
So here's what I have (a very much simplified version):
<asp:Repeater ID="rptContactSteps" runat="server">
<ItemTemplate>
<p>Script:<br /><%#mobjSDIT.FormatText(Eval("script"))%></p>
[Code]....
So, when I click 'btnSaveAndCompleteLastStep' I want all the UpdatePanel in 'rptContactSteps' to update. Having the UpdatePanel inside the ItemTemplate should help prevent having to re-load the html/text that populates the Eval("script") & Eval("notes"), since the value of these variables could be very large and over a 3G connection this could be very costly (in time & money).
I though by adding the async trigger it'd work as I have used this type of trigger before, but not when inside the Repeater. Currently the UpdatePanels aren't getting updated at all, except from the one from which the button was pressed.
I've got a fileupload control inside of a gridview so that each row (item from the database) can have an attachment associated with it. I've got a button next to the fileupload control (besides the default browse... button to select the file) to actually take the file and upload it to a file server.This works great if I use this button "Upload". However, underneath my gridview I have another imagebutton that is outside of the gridview, its just sitting on the form / page.The idea of this "Update" button is when end users make changes to the grid I can simply loop through the grid and update the values they have entered to the database. This also works great.
Now here is my issue assume a user has 3 rows in the grid view. On 2 of these rows he decides to add an attachment but he never clicks the "Upload" button he only uses the standard browse button to select the file. Now instead of clicking the "Upload" button that is on the grid view he ends up clicking the "Update" button outside of the grid thinking that it will save his attachments.
So I decided to write code to grab the fileupload control from the grid using .FindControls("NameOfFileUploadControl") in my Update button loop where I loop through all the rows. Then I check if myFileUploadControl.HasFile property to see if there exists a file and if there does upload the file then continue with the code.
The issue is when I click this "Update" button .HasFile always returns false even though I can see the text string of the path in the fileuploadcontrol textbox (the standard one next to the browse button). Is it because this goes back to the page load event and checks if it is a post back? What causes this and how can I fix it?
edit:Im adding some code because im still confused with this
Protected Sub SaveGrid()
For Each Row As GridViewRow In Me.gvLineItems.Rows
Dim f As FileUpload = CType(Row.FindControl("fuAttachment"), FileUpload)
[code]....
This method gets called on a click of a button... The fileupload control is in an of a gridview that is wrapped inside of an UpdatePanel:
<asp:FileUpload Width="90px" Font-Size="xx-small" ID="fuAttachment" runat="server" />
So why is this property always returning false?
I am having trouble binding data to data repeater when I use ISyncResult.This is what I am doing.There is a button inside a Update Panel that gets the input from the user and calls a function that returns a dataset that I then bind to data repeater which is also inside a update panel.What I did is that I made a delegate to this function, now I am calling this function like this
[Code]...
I am having hard time figuring out why the data repeater is showing no data.While debugging this I see that the dataset is getting the data and is passing the the "ds" but nothing is showing up on my page even though the data is being passed to controls inside data repeater while I am debugging.
I have a GridView which is continually rebound using a timer and is within an updatePanel so the page doesn't refresh continually (each row has a countdown sequence so the gridview needs to continually get updated). Inside the gridview i have an imagebutton with an OnClick method. Previously to get the OnClick method to fire I would make sure the gridView wasn't in an UpdatePanel and that the pageload databinding of the gridview was in an "If Not IsPostBack". With the Timer though I can't have the gridview binding an an "If Not IsPostBack" and it needs to be in an UpdatePanel. Is there a way to use an UpdatePanel and "If Not IsPostBack" and still get the OnClick method to be called?
Here's some of the code, if my explanation didn't make complete sense:
UpdatePanel/Timer/GridView
<asp:UpdatePanel runat="server">
<ContentTemplate>
<asp:Timer ID="timerCountDown" runat="server" Interval="1000" OnTick="timerCountDown_Tick"></asp:Timer>
[Code] ....
I have an asp.net gridview that is originally bound to a sqldatasource control, but when the user presses an external button, it instead gets the contents of a datatable rather than a SQLdatasource control. I therefore had to write code in the PageIndexChanging event of the gridview to allow for paging. My code is as follows:
Protected Sub gvEvents_PageIndexChanging(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.GridViewPageEventArgs) Handles gvEvents.PageIndexChanging
gvEvents.PageIndex = e.NewPageIndex
gvEvents.DataBind()
This worked beautifully until I added an AJAX update panel so the whole page wouldn't postback every time it paged, and paging stopped working. I debugged it and discovered that it is actually calling the PageIndexChanging event, but nothing is happening. I searched the web and found a few people with the same problem, but their solutions did not work for me. There was one on this site whose problem was solved by the following:
In PageIndexchanging event, where you bind data to grid, make sure, data is again fetched from the DB
I don't know what that means; my data was being bound as demonstrated above. I have "enable paging" set to true and EnableSortingAndPagingCallbacks set to false.
I am including my markup for the updatepanel below.
<asp:UpdatePanel ID="UpdatePanel2" runat="server" UpdateMode="Conditional">
<Triggers>
<asp:AsyncPostBackTrigger ControlID="ibtnSearch" />
</Triggers>
[CODE]...
I'm creating a number of textboxes, all calling a function during the onchange event to update their value to the database. These boxes are dynamically created in the backend because the data changes based on specific criteria that can be changed on the page. Here's the creation of the boxes:
Dim t as TableRow
tC = New TableCell
Dim txtBox As New TextBox
[Code]....
When I enter a number into the Textbox, the event fires as expected, but it fires twice.
Description of problem: I have an updatepanel that works fine in all browsers in a simple frame layout.
When I include jquery-1.7.1.min.js [URL].. on my page it breaks the updatepanel such that any control no longer does a partial postback - but instead does a full post-back, this behaviour only seems to happen in internet explorer (tested only in ie8 so far).
[Code]...
You can confirm that the update panel works nicely by changing the background colour and clicking dates on the calendar, by opening pdhtest.aspx. the frame-set should break this behaviour for internet explorer 8.
I have a asp:textbox inside an AJAX updatepanel. My goal is to be able to update other controls, such as a asp:listbox that is inside the same updatepanel, while I type in the asp:textbox. I can easily do this using javascript. However, I am under a restriction, that is, I cannot use javascript.
View 1 RepliesWhy images of asp.net toggle button created with checkbox doesn't show inside updatepanel in webusercontrol ?
View 1 RepliesI am trying to trying to setup an updatepanel to update every X seconds, the problem is I don't want the control to actually refresh unless there is new data. So I currently have a child updatepanel in a parent UpdatePanel, the child updatepanel gets refreshed by a timer. But I can't seem to find a way to trigger the parent panel to update. Again, only when certain conditions(data changed) are met.
Sample Code:
<asp:Timer ID="Timer1" OnTick="Timer1_Tick" runat="server" Interval="10000"></asp:Timer>
<asp:updatepanel id="upParent" runat="server" UpdateMode="Conditional">
[Code].....
I am new to MVC.I have a string that I built from a controller called parsedCustomerNames. In web forms I can make the placeholder visible from the codebehind and then populate a control with the string. How would I be able to do this in MVC.
View 2 RepliesI have a repeater and within that repeater, I have an item template. Now this template is formatted with a couple of tables, but for this question I have removed them to make things easier to read:
<asp:Repeater ID="Repeater1" OnItemDataBound="R1_ItemDataBound" runat="server">
<ItemTemplate>
<asp:PlaceHolder ID="phAnswers" runat="server"></asp:PlaceHolder>
[Code].....
[Code]...
In other words the values of the last row used are stored in every key, value dictionary combination. How do you prevent this from happening? It is clearly associated with the use of the temp variable, as the dictionary changed as the temp variable changes. Is there a way to only copy the values from the array rather then associate the dictionary with the changing values of the array?
I have an asp program that needs to validate data for textboxes that are dynamically created and put into a placeholder. Each textbox has to have a value when the user hits the Save button. I have the following code:
Dim testCheck As Boolean = True
For Each txt As TextBox In pnlTests.Controls
If txt.Text = "" Then
[Code].....
I have a particular link that I'm trying to convert to an ASP:LinkButton place holder so that I can control it's visibility based on the user type:
<asp:LinkButton id="linkColumnsSelect" runat="server" Text="Select CSV Columns for Export" Href="javascript: void(0)" Visible="True" />
I was able to remove the PostBackUrl by adding "javascript: void(0)" to the Href property, but now I have the problem of getting a real ID that I can use in javascript. As it currently stands, this creates an ID for the item of ctl00_ContentPlaceHolder1_linkColumnsSelect, however I need that ID to be "linkColumnsSelect" on the client side and still work server side (for jQuery coding reasons that involve looping). Is that possible? Or do I just need to adjust my jQuery to account for the placeholder segments of IDs?
I have a page that includes javascript which I only want to run under certain conditions. To do this I have placed the scripts into an asp: placeholder.This actually seems to work but when I run a debug on the page I get the following warning.Element 'placeholder' is not a known element. This can occur if there is a compilation error in the Web site, or the web.config file is missing.If I move the placeholders into the body of the page the warning goes, but that means I'm left with scripts in the body which I also want to avoid. Does anyone have any hints on the best practice for this scenario? [code]
View 3 RepliesWithin my webpage I am loading usercontrols within a placeholder. Each of these user controls triggers a postback when an ajaxcontroltoolkit rating is changed. The problem I am having is that if I use [code]The Load_EvaluationList is what loads the user controls, if I place the IsPostBack check around those two, the controls disappear, what could be the problem
View 3 RepliesI've created a function in my vb class file that creates dynamic tables. I'm planning to use this to create tables dependent on a button being clicked. The function references a placeholder in my aspx page but I'm getting "placeHolder1 is not declared".How can I access controls on my form from my class file? [code]
View 2 RepliesI need to remove the "padding" or "image place holder" before the text on a ToolBarButton (not a ToolStripButton). There is not ImageList set for the ToolBar, but there is still a blank space before the text on the left hand side of the ToolBarButton.
View 2 RepliesIn my .aspx page I have;
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="_Default" AspCompat="True" %>
<%@ Register src="Modules/Content.ascx" tagname="Content" tagprefix="uc1" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
[code]....
The result is an empty placeholder and no errors. P.S after Fat_Tony's answer I changed the code to;
Try
Dim loadmodule As ASP.ContentModule
loadmodule = CType(LoadControl("~ModulesContent.ascx"), ASP.ContentModule)
[code]....
But still no results unfortunately.
I've done asp.net exclusively so long, and now I have to convert a small web app to a desktop app.
At one point in the web app, I dynamically generate a table of data and add it to a placeholder control.
I'm not sure how that would be done on a desktop app. Can anyone suggest a control or 'windows' way of doing that.
I have a UserControl that has a simple repeater inside. It has a property called data which when passed into the control populates the repeater using the standard databinding.
On a page I have a placeholder.
I have a loop which does the following
Dim qDetail As New UserControls_ReportDataTable
qDetail = DirectCast(LoadControl("~/UserControls/ReportDataTable.ascx"), UserControls_ReportDataTable)
[Code].....
I have a page with Ajax Tab controls, within one of the tabs is a webcontrol that as a Telerik RadGrid, with Edit forms pointing to another web control. That edit form also contains Ajax Tabs and on one of those tabs, there is an Ajax modal popup of yet another webcontrol.The initial webcontrol works fine when used on it's own page, but the edit form fails to appear when the control is used within the Ajax Tabs as desired. The script manager is throwing the following error:
Microsoft JScript runtime error: Sys.InvalidOperationException: Could not find UpdatePanel with ID 'xxx'. If it is being updated dynamically then it must be inside another UpdatePanel.
When i put
<asp:FileUpload ID="FileUpload1" runat="server" class="multi" />
<br />
<asp:Button ID="btnUpload" runat="server" Text="Upload All" /> outside the update panel everything works fine,but as soon as i put it back into the update panel...it stops working.
ASPX CODE
[Code]...
How can i set the cursor focus on the top of the page when I clicked Update button.
Update button is under UpdatePanel
I'm currently having an issue where an updatepanel does an async postback and loses the tab order when the partial postback occurs.When you run through the tabs the tab order works correctly, but then you press a button and the partial postback occures the tabindex is reset.
View 2 Replies