Ajax-based ListView Never Works
Dec 18, 2009
I've tried placing it in itemTemplate and editTemplate and both (even though doing this would mean having to call the whole page), however I was running out of options because when I try to place it inside the LayoutTemplate (where it makes sense to place it) it did not work once again, the updatePanel & listViiew begin like this.[code]This is now happening on two different aspx pages with different listviews and different datasources. Idealy, I would prefer to minimize the ajax updated area as much as possible, preferably to itemTemplate level, but I'd even settle for the entire listView at the moment.Also, insertTemplate shows by default when page is loaded, and when I insert a new item, the entire page doesn't reload (like in other cases), the item is just added. Not sure if this is a listView feature or the updatePanel in the works. When I press {edit} it reloads the page, and when I press update to update the item being edited, it also reloads the entire page.
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Jun 23, 2009
I have the following web method:
<WebMethod()> _
<ScriptMethod(ResponseFormat:=ResponseFormat.Json, UseHttpGet:=True, XmlSerializeString:=True)> _
[Code].....
I wanted to use HttpGet here so that the result can be cached.
I tried every variation of calling this, but no luck. Is this possible with GET?
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Feb 15, 2009
I would like to know if it is possible if the columns of the listview can be resized automatically based on the information in the listview?
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Sep 2, 2011
I am trying to make a listview custom control based on the standard listview control that will allow me to drag a column header outside the standard listview control and drop it on a panel. I plan to use the drop event to determine which column I should group by view on.
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Jun 4, 2011
I am required to send MS-Access table to SQL Server Database, based on fields Selected in Listview.
1)Till now i am able to get Access table names and their field in List view.
2)I am able to check whether database exists and Whether table exists in SQL Server with same name from VB.Net.Now i don't know how to insert Access Tables based in Fields Selected in ListView to SQL Server.
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Mar 28, 2012
Is there a way to auto-update a listview based on reading a column?
Requirements:
1) The code must make a call to a user-created "Private Sub" to recalculate
2) Update must be automatic. .SelectedItem or clicking a row will not work
3) The formula function cannot be included in Form_Load
I've got everything working if the user selects a row, then clicks an "update" button using .SelectedItem. But with my current program containing 200 rows, it's not feasible. Simply put, how would I go about updating a listview column (0 in this case) based off a call to a formula, then updating the row?
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May 24, 2010
Contact Title has a default value which is Sales Person. Anyhow, when a user click Edit on the chosen ListView record, i need Contact Title to have the right value that corresponds to the chosen record. For example, if user clicks edit, the fields on the left side will be filled with values. In this case, i want Contact Title to view the right value.
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May 13, 2010
I am creating a program in which there is a listview control with many items contained in it. It also has checkboxes for each of them. I am trying to get it so that when you check the checkbox next to an item, it removes the item from the list. I am using this code:
Private Sub ListView1_ItemCheck(ByVal sender As System.Object, ByVal e As System.Windows.Forms.ItemCheckEventArgs) Handles ListView1.ItemCheck
ListView1.Items.RemoveAt(e.Index)
End Sub
When I run this however, and check an item, it gives me this error (I am checking the first item in the listview, which would mean the index is 0): InvalidArgument=Value of '0' is not valid for 'index'. Parameter name: index
I've have been testing this code out for both the listview events ItemCheck and ItemChecked. How is 0 out of the index range? Wouldn't it be the first item in the listview, in which case it should remove the item.
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Aug 23, 2011
I have a database and I'm storing images in it along with a person's name, and other attributes. I've databound my listview with a stored procedure. I want to know how I can display an icon on a row depending on if the record for that row has a picture or not for the person...I'm not sure how to accomplish this however with the templates in asp.net
EDIT:
Here is my template and the s where I'm hoping to put them.
<ItemTemplate>
[code].....
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Oct 12, 2009
I have a ListView that I populate with running processes and would like to highlight specific rows based on the amount of memory consumption. After I add the processes to the list and and call the WorkingSet64 property of the process, I tried this:
vb.net For Each lvi In ListViewProcess.Items If proc.WorkingSet64 >= 2000 Then lvi.BackColor = Color.Yellow End If Next
Processes is the variable I used to grab the collection of processes. proc is defined as a variable and then used to loop through the processes.
lvi is of course the ListViewItems in the ListView.So, by the code I have above, I loop through the ListViewItems, and if any of the processes are above or equal to 2000, then I set the background color to Yellow.
However, it sets every line to yellow, and I can't seem to figure out to set only those processes that have a WorkingSet64 above 2000.
Would I need to loop through the processes and then set the background color of the ListViewItem based on that? That kind of makes sense to me, but if I do that, I'm not sure how to set it just for those processes. Maybe by setting a separate variable?
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Aug 22, 2009
I used following code searching records from a table in MsAccess and displaying in a Listview and it is working fine with the search criteria based on Discription.
CODE:
I also tried the above code to search records on the base of CustId and it worked fine too.My table DailyTransaction in MsAccess is as under:DTDate, DTTime, CustId, Description, Quantity, Price, Amount, AccountNumber, Name
Now I want to Search records on the base of Date I tried the following but it did not work.
Dim cmdText As String = "SELECT * FROM DailyTransaction WHERE DTDate=' " & TextBox1.Text & " ' "
Also i want to make following sort of query to retrieve data between two dates and to display the sum of amount group by DTDate. I could sketch following query and deifinitely it is so wrong with Syntex.Select * From DailyTransaction where DTDate Between textbox1.text AND textbox2.text Group By DTDate AND SUM(Amount)
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Jan 5, 2012
I have a spreadsheet with this code:
'insert link
sheet1.Hyperlinks.Add(sheet1.Range("P1"), "http://http://www.vbforums.com", "")
the code of the button (ribbon)
[CODE]...
When I press the button, it connects to the web site. when the sheet1 is selected, it works, but when the sheet2 is selected, not works, why? the path is sheet1,What's wrong?
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Jun 26, 2010
this is my code:
Dim WB As WebBrowser
WB = GetPage("http://speed.travian.ir/a2b.php?z=" + VillageID.ToString + "&c=" + Type.ToString + "&" + AttackParams)
[code].....
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Apr 6, 2011
I am creating a project in VB.NET in which one of the reports require that the name of employees should be displayed as column names and whatever work they have done for a stated period should appear in rows below that particular column.Now as it is clear, the columns will have to be added at runtime. Am using an ODBC Data source to populate the grid. Also since a loop will have to be done to find out the work done by employees individually, so the number of rows under one column might be less or more than the rows in the next column.Is there a way to create an empty data table and then update its contents based on columns and not add data based on addition of new rows.
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Jun 23, 2009
I am using a PropertyGrid control. There are two things I need to be able to do.
1. I need to be able to access Ajax controltoolkit components and populate the propertygrid with the properties from the Ajax control toolkit.
2. I need to be able to do the same with WebUI components.
The basic part, populating the propertygrid with a control, I understand how to do - -
What I don't know is what to import or how to access what dll (for the Ajax Control Toolkit and the Web UI controls), in my Winforms project to be able to do this.
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Feb 9, 2011
1) is vb6 is interpreter based languge or compiler based or both interpreter and compiler based language?
2) is VB.Net interpreter based languge or compiler based or both interpreter and compiler based language?
3) if any of above mentioned is both interpreter and compiler based so tell me please when it compiles and when it interprets?
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Sep 14, 2011
I'm amateur with asp and .net, but i need create a page to generate xml/json output response similar to java servlet.what is the best way to do ajax response with asp forms? Asp page form with [code]
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Mar 28, 2010
Ok, everything is 'functionally' working with what I am attempting to accomplish and once again, I am sure this is something dumb, but I cannot figure out how to do this one thing.I have an edit form for an entity, lets say a car. This 'car' can have 0 - many passengers. So on my edit form, I have all the fields for the car, then a list view showing each passenger (partial). I also have a 'add new passenger' button that will render a new partial view that allows you to enter a passenger. This has a cancel link and an add button to submit an Ajax form. When you add a passenger, the passenger is automatically added to the list, but I need the enter passenger form to go away. I have tried using the onSuccess and onComplete functions to hide the div that the form is in, but both render just the partial view HTML elements (white screen, text) and not the partialView in the context of the entire page.
[code]...
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Apr 20, 2011
I basically need to do this, but unfortunately my hosting provider doesn't give me "Full Trust" so I can't run threads. Is there a way to do this using AJAX?
//Updates Information in Database
Thread threadFind = new Thread(LoadFind);
threadFind.Start();
Response.Write("Send old information to users"); I don't want my users to have to wait at all for a response, so I can send them the old information. However, while they are on the page I want another thread (or something that works like a thread) to update the information for the next user that visits.
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Feb 18, 2011
I have a simple aspx file with 2 text boxes and an ajax autocomplete extender attached to textbox2
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="test4.aspx.vb" Inherits="test4" %>
<%@ Register Assembly="AjaxControlToolkit" Namespace="AjaxControlToolkit" TagPrefix="asp" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
[code]......
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Sep 12, 2011
i need to scrape a website that uses ajax. the website searches for listing, but uses ajax to return the result.
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Nov 15, 2010
How can I go from an SQL statement to AJAX?I know this is a broad question so here is what I am trying to do and what I have tried.
I have using asp.net(vb) connected to the database and put the information in a dataset and datagrid.(I don't want to use a datagrid anymore)
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Jan 7, 2011
control to display dynamic fields
the database table contains
ID --> Autonumber
Title --> text
[code].....
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Mar 3, 2011
The middleware that manages talk between the mainframe and our app is blowing up randomly. It's a "such and such attempted to read/write protected memory..." error.The vendor is saying there we must be running some unmanaged code (I feel they're trying to worm out of it). I know VB's entirely managed, but does anyone know about the server portion of AJAX? Is there any server side javascript stuff that occurs before it actually gets into the .NET framework?
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Aug 6, 2009
I am new to Ajax and have a rough idea about Ajax. I am developing a website having a feedback page in which, i want to populate the state/city DropDownList box depending upon the value selected in country DropDownList box.
I have seen some examples downloaded online but they are not working in my application due to many possible reasons, some of them may be the feedback page in my application is a content page, the web application is asp.net 2.0 web application, i don't have any additional ajax tools or scripts installed.give me the solution that should work with asp.net 2.0 web application (in VB.NET) and the feedback page is a content page. I don't want to add custom controls. I want to do it straight away with javascript or vbscript using XMLHTTP object.
After everything is set right with Ajax. What if the browser doesn't support Ajax? What should i do in such case?
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Sep 20, 2011
I have a DropDownList in MVC which grabs a SelectList initialized and populated by a controller. The goal of the specific page that said list resides on is to reply "You have selected option X" immediately to the user without refreshing (using Ajax).The problem I'm running into is that for some odd reason, while the dropdown renders properly and even posts back correctly, any attempts to add new options or modify previous response messages are in vain.
My View:
<script type="text/javascript" src="../../Scripts/MicrosoftAjax.js"></script>
<script type="text/javascript" src="../../Scripts/MicrosoftMvcAjax.js"></script>
[code].....
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Jan 3, 2011
I have worked on .NET 2.0 technologies and now that I want start learning newer technologies, I am currently very confused on how to proceed.
New technologies I am considering consist of AJAX, Workflow, WCF and WPF
Here is my dilemma:
1. Where should I start first?
2. Which technology would allow me quicker understanding?
3. Is there any specific sequence to this learning?
I understand the questions might be stupid; however, this would help me concentrate on one instead of all over the place and archiving nothing.
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Apr 5, 2011
I have to use VB.Net. Microsoft provides black magic tools (in the Visual Studio IDE) for making AJAX work, but using these seems hopelessly complicated and documentation for these tools covers only the simplest examples. By contrast, writing the scripts myself seems much easier, and I will understand what is going on.
So my question is, is it possible to write my own AJAX javascript (creating the XMLHttpRequest object, etc.), and have the server-side function be written in VB.Net instead of PHP?
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Oct 12, 2010
I am trying to get an HTML source from 3 different web pages. To navigate these 3 pages there is a dropdown menu with 3 items: Page 1, Page 2 and Page 3.These 3 pages are loaded using ajax in an empty div.
What I am doing at the moment is:Selecting the first item from the dropdown menu and simulate a click
Home.Browser0.Document.Forms(0).All("menu").SetAttribute("value", item1)
Home.Browser0.Document.Forms(0).All("menu").RaiseEvent("onChange")
[Code]...
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Feb 24, 2011
In a vb 2010 project, I have 2 win forms: Form1 and Form2.
In the Form1 class there is a server-based timer: when the "elapsed event" fires, then I update the text of a Label1 on the Form2. A very simple code:
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