Asp.net - .NET 4.0 DataContractJsonSerializer With Changed Properties?
Sep 15, 2011i have some Objects serialized with the System.Runtime.Serialization.Json.DataContractJsonSerializer and written to my Database:
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Properties Of Control Changed
Apr 6, 2009i had designed a form with various controls added some days ago. Accordingly i had coded the controls. And today i didnt like the look and feel of the form, so i copied the controls for a while and then re-pasted it over a new control (panel). Now when i double click to see the underlying code of the control generates a new event. I mean i had a button as Button1 and its underlying code was under the Button1_Click event. But now its is like Button1_Click_1 which i dont understand. Is it due to formation of control array or what? I want the button to be remapped to Button1_Click event.
View 4 RepliesClass Properties Not Reflecting Their Changed Values
Nov 14, 2010I am using a class to track if a user cleared their personal information found within some text boxes on a form. In the button click event to clear the text boxes I am creating a new object to the class and assigning true to one property value. Sounds simple until I try and submit the form with a different button, and create a another object reference that I use in an IF statement to check the property value for true. Every time the statement fails because the value being returned from the getter in my class is false.
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Label Not Showing Up When Properties Changed To Visable?
Apr 17, 2012in my program I have a section that is outlined as listed below - in the page load, the label's visibility is set to false.
lblLoading.visable = true
lblloading.text = "loading please wait"
UpdateData()
lblloading.text = "Loading Complete"
It takes about a minute or 2 to run updatedata as it is doing multiple things to a database - when I execute this code, it stalls and loads the data, then when done I do get my label that says loading complete, but I never see the label before it is done loading to tell the user that it is processing. Is there any way to force it to show before UpdateData() is called so that it shows during the load time?
Save Properties I've Changed In Propertygrid Control?
Apr 29, 2009I put a PropertyGrid control and set the control to be a button on my form and i run it and change some properties and reflected on the button but when i restart the application nothing is saved so i have to save it to the disk like serialize the control is this the right thing?
View 2 RepliesVS 2008 Insertion Of Sub Main Changed Controls Properties (background Color)
Apr 14, 2010due to problems with OpenFileDialog and ClipBoard I have inserted a main subroutine in my WinForms app like this:
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VB 2008 .suo File Needs To Be Changed/recreated Because A Path Has Changed. All Other Files Are OK
May 5, 2012I changed my Username on my computer from i.e. "xxxxxx x xxxxx" to "Dennis"
VB 2008 during a compile gave me the following error: Error reading icon 'C:Usersxxxxxx x xxxxxAppDataRoamingMicrosoftVBExpress9.0VSProjectApplication.ico' -- The system cannot find the path specified.
The file "VSProjectApplication.ico" is in 'C:UsersDennisAppDataRoamingMicrosoftVBExpress9.0'
Somewhere in the VB2008 "configuration" files I believe that I need to manually change the old path to the new path.
I found the old path in the ".suo" file. The ".suo" file is not a text file. How can I edit the .suo file, save it so that it will work?
Saving Changed Data Before DataViewGrid Selection (Row) Changed?
Jan 20, 2010on my Form I have a DataViewGrid and some textboxes with a save button (they are filled with additional data of the selected row).Save is disabled first, when I change something in the textboxes the save button is enabled.When the user changes a gow in the grid, I want to ask before changing the grid row, if he wants to save (if the button is enabled).I am using RowEnter but this is too late, then the selected row already changed (and my textboxes already got new data)...What event can I use to ask if I should save stuff before the user changes a row?Something like BeforeRowChanging with a chance to cancel changing the row?
View 2 RepliesMake Custom Properties In Properties Window To Refresh Upon Change Via Code?
Apr 26, 2012[code]I want to make the Properties Window to update the properties for X and Y at each MouseMove, so they become immediately visible for the user.
View 2 RepliesUser Control Properties - Finalize My Design Time Properties Grid
Apr 27, 2011I'm making a control and I am trying to finalize my design time properties grid. I have several List(of Class) items as public properties and when I click on the design time menu (while testing the control) there is the word "Collection" and a button with an ellipsis (...) that brings up a neat pop up with the buttons Add/remove and all of the public properties of the collection's class on the right hand side. Basically for a non-collection instance of a class (with public properties) I'd like a similar button to show up. I know I could put all of the properties in the main control class and group them, but I like the pop up box feature. Anyway to duplicate this? (think font grid item etc.)
View 3 RepliesVS 2010 Express - PictureBox Design Properties Box Shows Properties That Cannot Be Accessed?
Mar 5, 2012In the form design I set up a TableLayoutPanel, 20x20 cells and in cell (1,1) a PictureBox (called Target) containing the image of a small target. The properties box for Target shows some very promising properties, Column and Row - and if you overwrite the values in the properties box, the PictureBox obligingly shifts to the corresponding cell position in th design. However in VB it is not possible to refer to Me.Target.Row or .Column - neither appears during coding in the menu of properties, and deliberately coding either of them produces an error like
Error 1 'row' is not a member of 'System.Windows.Forms.PictureBox'.
1. Why does the properties box show properties that cannot be altered programmatically?
2. How can my program move Target around in the TableLayoutPanel?
Expose A UserControl's Properties To Properties Window In Designer?
Aug 19, 2009Is there a way to expose a UserControl's properties to the Properties Window in the Designer?
View 3 RepliesSet The Transparent Property Via Label Properties Properties Not Via Code?
Jan 16, 2009I'm working on a Hazardous Materials label printing program. One of the options is to do an "NFPA" label. Since there are 4 values required with 4 or 6 options, the ratings are entered via radio buttons in a group box. That's working okay. I display values in the NFPA diamond as they're entered: left quadrant blue, top quadrant red, left yellow, bottom red. I'm having trouble with the label in which the rating will be displayed on top of a jpg diamond for the white. In this quadrant the text can be up to 4 characters. I can accept the text going into an adjacent block a little, but the corners of the label overlap into another quadrant/color. I reduced the font size which solved the overlap problem but the font is then too small and looks terrible. I tried to make the background of the label transparent to let the color come through correctly but that's not a valid value for label.background. I'm figuring that the transparent background is the best solution. What can I use that will accept a transparent background so the color shows through?
I'm trying to set the transparent property via label properties properties, not via code. Here's the code if it makes any difference:
Public Class NFPA
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Close()
End Sub
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Change All Properties Of A Form To Properties Of Other But Don't Change Important Properties?
Feb 26, 2011How to change all properties of a form to properties of other but don't change important properties like Owner,Handle, OwnedForms, Parent,HasChildren,Controls and ... .I have a child form that i want it to provide controls of Form.The background form provides Aero frame and child form is a transparent form in it.I want it because I want to draw buttons with system style in Aero in Windows Forms.This is my own code but it does not work good (ForeForm is child form):
For Each Propertry In ForeForm.GetType.GetProperties()
Select Case Propertry.Name
Case "AeroBackgroundEnabled", "FormBorderStyle", "TransparencyKey", "Parent", "Owner", "ShowInTaskbar", "Handle", "HasChildren", "OwnedFo[code].....
Additionaly:I wrote a great Aero Form.I don't publish current version (1.2) that supports Aero Blur,RealTime Aero Color change,extend Basic theme?
Adding "Properties" Dialogs - Pre-built Dialog Or Control For Displaying Properties At Runtime?
Nov 6, 2008I have my own class of graphic objects, and now I'd like to allow a user to right-click on one of those within the application and see a properties window. Is there a pre-built dialog or control for displaying properties at runtime? I'd like to have something just like the IDE properties window button for my application.
View 4 RepliesPictureBox Properties In PRintDocument Did Not Contain The Properties Set?
Mar 27, 2012Public Class LOA
Private Sub PrintDocument1_PrintPage(ByVal sender As System.Object, ByVal e As System.Drawing.Printing.PrintPageEventArgs) Handles PrintDocument1.PrintPage
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Get Custom Properties For A Custom Control Into The Visual Studio Properties List?
Nov 25, 2009What I've done is create a User Control Library (Project) and I've added a single User Control to that project. The control contains a single FlowLayoutPanel, and I created a Property on the control itself to pass the FlowDirection from the Control to its FlowLayoutPanel child.
Build, reference, component appears in the Toolbox and everything works fine, but the property on the control does not appear in the Properties window when I go to edit it at design time.
Using AutoMapper To Map DAL Properties To BLL Properties?
Oct 8, 2009I have a BLL class which contains properties for the fields in a Country table (CountryCode, CountryName, etc). It also has a property ioDAL, which is a reference to a DAL class (created with SubSonic 2.2), which has same named fields.
I have a LoadRecord() method which calls the DAL's FetchById() method that populates the DAL properties by calling the database (SQL Server 2005 FWIW).What I then want to do, rather than writing code to populate each BLL property from its DAL equivalent, is to use AutoMapper (from CodePlex). I think the line should be something like
Mapper.CreateMap(ioDAL, Me)()but this gives errors "Value of type (DAL class / namespace naming) cannot be converted to 'System.Type'" and "Value of type (BLL class / namespace naming) cannot be converted to 'System.Type'".
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Get Ddl Id On DDL Changed
Feb 22, 2010To make this more simple,(as I have gone further through this project I have learned a bit more)...
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How would I execute the above statement? When multiple dropdownlist's are handled in the same sub, how do you tell which one is actually calling the sub? The post by atconway was helpful in guiding me in a direction, but I dont understand the whole concept enough to dive into the msdn library... I would probably spend all my next 7 hours today reviewing it and still not get much further :-P
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.net - DataRow Is Not Changed
Oct 4, 2011Can anyone explain exactly why Method 1 in the following code does not alter the DataTable where the other 2 methods do? It's obviously some kind of referencing issue, but why exactly?
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.net - How To Tell When A Web Page Has Changed By X%
Jul 26, 2011I'm trying to write a little utility which will check periodically and tell me if/when a web page's (could be any URL) content has changed. I've read the other postings but they don't really answer my question (as far as I can tell).I know for static pages there is a last-modified header. However, what about dynamic pages? I got Oli's comment that storing a hash of the contents works but that's not really idea because the page might simply have a time stamp on it (the date-time that the page was produced). Clearly, in this case, the content would be different on every single request even though nothing significant has changed.So, now I'm thinking to tie it to a percentage of 'changedness.' Something like, more than 5% changed will cause the 'changed' logic to run.
View 3 RepliesAdd An Event For When A Value Is Changed?
Aug 6, 2009Is there a way I can add an event for when a value is changed, because, I need to add an OnDisconnected() event that detects when the mobjlistener.Connected value has changed...would I have to do a timer, is there a way I can do an event for getting disonnected?
mobjClient = New TcpClient("IP", 5000)
I would rather not add a timer, I would rather have an event that fires when mobjlistener.Connected changes, but if I can't I will go ahead and use the timer instead.The problem I have that I need to detect when this changes is because sometimes I get disconnected for an unknown reason using the TCP Multi-User Chat, it has handlers for disconnected, but whatever is causing the disconnect, it is just not detecting it, so if I could make it so that it will trigger when this is changed, then I can stop the problem I have once and for all.
C# - Mdi Children Changed In .Net?
Apr 15, 2010Is there a simple way of tracking the change of an Mdi's children i.e. when they are created and closed, something like an event OnMdiChildListChanged (I realise this doesn't actually exist).
I am also aware that I could have a method within my Mdi that handles the creation of child forms and logs the state of them or even create an Interface that defines that a child form has a "NotifyParent" method that is then called on close of the form, but i was wondering if there was any built in events that i could plumb into?
Code Keeps Getting Changed
Apr 19, 2010I have been re-writing an old personal application after not coding for a long time, I have a class for a custom progress bar.
I compile it then add the progress bar to the form. Then I modify the properties of the progress bar on the form. I then compile and run it .[code]...
IsDayLightSavingTime Changed
Jun 10, 2010Console.WriteLine("D2: " & System.TimeZone.CurrentTimeZone.IsDaylightSavingTime(d2))We parse files and put the data into a database, if I parse the exact same file with the same code (it was never changed) I get different results.
View 1 RepliesKnow When The Checkbox Has Changed?
Dec 24, 2009Using vb.net and DataGridView in Winforms. What even should I use to know when the checkbox has changed?
View 3 RepliesWhy Does The Selected Row Gets Changed
Jun 13, 2011I am developing a Windows application using VB.NET. I have a datagrid control bound to a dataset which is populated from an Access database. When a user using my application clicks on a row in the grid, a triangle appears in a column on the left of the grid indicating the selected row. However, if the user does nothing, after several minutes, the selected row changes to the first row in the grid and the triangle indicating the selected row moves to the first row.
View 1 Replies.NET Connection, Server Can't Be Changed
Sep 18, 2011I've been trying to make a login system for my application. Which seems to work, but when I try to connect to the database itself, it won't work. I used this code to check the exception:
Catch myex As MySqlException
MsgBox(myex.Message)
That gives this exception:
"Acces denied for user '[my db user]'@'[My IP-Address]' (Using Password: YES)"
The code I use for the connection is:
Dim Connection As New MySqlConnection("server=[The SERVER IP]; user id=[DATABASE USER]; password=[DB USER PW]; port=3306; database=[DB NAME]; pooling=false")
Connection.Open()
MsgBox("Connected")
As you can see, I've tried to change the 'server' part, but it won't affect anything. It will just say my ip address (localhost, I assume) in the exception. Telling me that it couldn't connect to it. Which is not even what I'm wanting to do.
Asp.net - Data Not Being Changed In TextBox?
Dec 16, 2011Ok, I have been going around and around with this for hours (Searching, etc). This is what I want to do, I want to load data into a Text Box and if the user changes the text in the Text Box I want to be able to save the new text.
My problem in the TxtBox_TextChanged event the data contained in the txtNarrative Text box is the new data that the user typed in (<>ABCD) but in the btnSubmit_Click event the data contained in txtNarrative is the original value ABCD.
<%@ Page Language="vb" AutoEventWireup="false" CodeBehind="Default.aspx.vb" Inherits="WorkBench_VBNet._Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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Asp.net - Keep Changed Status Of CheckBoxList?
Feb 29, 2012So, I'm running VB.net 3.5. I have a dynamic list of server names, and I want to put them in a CheckBoxList. The list is populated and, using that same list, I make a graph of the performance for each server listed. I want to be able to check and uncheck the checkboxes representing servers and, when I lick an update button, it'll create a new graph and graph only the servers that are still checked. I noticed that the page still loads before the button click is handled, so the CheckBoxList will repopulate itself before being able to read the current CheckBoxList. This is my load. And I populate my checkboxlist inside ShowView()
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
If Not Me.IsPostBack Then
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And I wanna try to preserve the checkboxlist values when I do an event handler for an update button.
Private Sub btnUpdateGraph_Click(sender As Object, e As System.EventArgs) Handles btnUpdateGraph.Click
'insert code
End Sub
