Know 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 Replies
ADVERTISEMENT
C# - Checkbox In Datagridview Cannot Be Changed?
Dec 30, 2009I've created a Datagridview bound to a Datatable. This Datatable is updated by a event to reflect statistical information as it changes (sub second resolution). I have a checkbox to determine if a row is available for other functions and can be toggled on and off normally if my eventhandler is not receiving my updates.
If my bound Datatable is changed, the checkbox returns to its previous state as soon as the cursor or focus leaves the checkbox glyph (not the cell).
How do I toggle the checkboxes without them reseting without disconnecting my eventhandler?
Asp.net - Grid Checkbox Value Not Changed, How To Get Value On Button Click?
Jan 31, 2012i am using asp.net for my web application when i click on checkbox inside gridview and after that i check its value on button click it does not show me the exact value.here is asp code
<asp:GridView ID="dgvMenu" runat="server" Width="100%" CssClass="grid" GridLines="None"
AutoGenerateColumns="False">
<Columns>[code].........
and here is its vb version to get its value on button click version
For Each item As GridViewRow In dgvMenu.Rows
Dim MenuName As String = item.Cells.Item(1).Text
Dim chkView As CheckBox = DirectCast(item.FindControl("View"), CheckBox)
Next
i want to check its value whether its checked or unchecked so that i can process its value
Fun With Datagrids, Checkbox Checked Not Detected Until Selection Changed?
Dec 8, 2011I have a datagrid that has a checkbox column and it all works fine and dandy except I'm not sure what the proper way to handle this situation is. When I check one or more checkboxes then loop through to find which ones were checked if I didnt move the selected cell before clicking go it will not detect the last checkbox checked. However if I change selection it does. Problem is I dont want to change selection, I tried unsBelow is the code I'm using to find which checkbox is checked. This will msgbox me the text in the second column of all the rows checked except the last one I checked
For
Each
chk_s In
[code]....
WinForms - DataGrid Reset Current Cell To 0 When CheckBox Changed
Jun 13, 2011Basically I am looking for if I click on my checkbox, it should reset my datagrid column lastseqno to 0. Is it possible?
View 1 RepliesVB 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 RepliesCreate A Checkbox In Form2 That Says If Checkbox 1 Is Checked Then Show Picture 1 In Form 1?
Apr 15, 2011I have a question, I can't really find the answer...Basically I have 2 FormsIn form number 1 I have 2 pictureboxes. I want to create a checkbox in form2 that says if checkbox 1 is checked then show picture 1 in form 1
View 1 RepliesVS 2010 ListView - Program Ignore The Response Of The User In Checking The Checkbox Instead It Leaves The Checkbox Uncheck
Jan 2, 2012I have a ListView with Checkboxes in vb.net and what I want to do is when the user check the checkbox, the program ignore the response of the user in checking the checkbox, instead it leaves the checkbox uncheck.
View 4 RepliesPicturebox/Checkbox - Displays The Facilities When The User Clicks On The Checkbox?
Aug 15, 2011I am creating an Interactive map which displays the facilities when the user clicks on the Checkbox, such as toilets.It will display all the toilet locations via PictureBoxes.I want to do this without having to write all this code?[code].....
View 15 RepliesRetrieve Inserted Checkbox Values In Checkbox On Asp.net Page Load?
Dec 30, 2010i have 5 checkboxes in webform and textbox1... when i search the record using the date specified in textbox1 when i enter 11-Dec-2010 in Textbox1 and click on submit button then checkbox1, checkbox2, and checkbox3 will be disabled and unchecked .....
[Code]...
Checkbox Selection - When Click On A Checkbox You May Not Beable To Check Another
Feb 15, 2010I've wondered if i can make it so when i click on a checkbox you may not beable to check another. And i do not want to use radio buttons
View 9 RepliesHide CheckBox In Particular Cell In DataGridView CheckBox Column?
Nov 22, 2011I have a DataGridViewCheckBoxColumn who's column name is "booReadyToReport want to hide all the checkboxes in this column if "bintAnalyteCodeID" doesn't equal the selected value in a combobox on my form. ut I run this bit of code the DataGridView DataError event fires currently, have nothing in the event except an comment. he code seems to work, but I'm new to VB.NET and I'm wondering if this is the correct way to handle thishould I use the CellPainting event?
highlight rows with RBF3
For Each dr As DataGridViewRow In Me.dgvCalculatedResults.Rows
f dr.Cells("bintAnalyteCodeID").Value = Me.cbxAnalyte.SelectedValue Then
[code].....
DataGridView With A Cell That Is A CheckBox. Reading The Value Of The CheckBox?
May 15, 2011I have some DataGridView code written in vb.net. (Nothing is attached to a datasource.)The 4th column is a checkbox cell.How do I detect if that checkBox is checked or unchecked?This code strangely reports TRUE or FALSE at random times. It even turns ON the checkbox in rows other than the row I clicked in. (Huh?)
Private Sub DataGridView1_CellContentClick(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DataGridView1.CellContentClick
Dim whichGrid As DataGridView = CType(sender, DataGridView)
[code].....
I've tried countless other methods... none seem to actually get the checkbox ON/OFF value in vb.net.
Refresh Checkbox - Getting The Checkbox Unchecked For The 2nd Address?
Jun 30, 2009I've got a form with parent-child setup. The parent displays name and other demographic info.The child displays multiple addresses, one row at a time. There can only be one primary address for a name and this is designated by a checkbox at the top of the child form.If the user wants to change the primary address to another address,then they find the other address and click on the checkbox.The form checks the other addresses and if one is found that is designated as primary,the user is warned that one already exists and prompts them to change it.
So for example, a name has 2 addresses, the 2nd being the primary address.The user wants to change the 1st address to be primary.They click on the Primary Address checkbox for the 1st address.A warning displays that there is already an address listed as primary.The user then answers the prompt to change the 1st address to the primary address.The checkbox for the 2nd address will be unchecked and the checkbox will be checked for the 1st address.My problem is getting the checkbox unchecked for the 2nd address.If I close the form and reopen, then the checkbox is unchecked.How do I refresh the checkbox for the 2nd address?Here is the code I'm using to find if an address has already been marked as primary:[code]......
Asp.net :: Select One Checkbox From 2 Column Checkbox?
Dec 16, 2011I have 2 columns of checkboxes in a gridview, where the header also contains a checkbox. If i select the header checkbox, it will check all corresponding checkboxes in its colomnow, what I want to happen is if I select column 1 checkbox, column 2 checkboxes should get unchecked and vice-versa.
<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Default.aspx.vb" Inherits="_Default" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
[code]....
Clearing CheckBox With CheckBox Control
Dec 13, 2010I am refreshing a form, and I want to assure the checkboxes are cleared when refreshing. I can clear the textboxes and masked textboxes, but cannot figure out to revert the checkbox back to the UnChecked state.
[Code]....
CheckBox Error - Whenever Textbox Says "Default" And Click On The Checkbox - Msgbox Pops Up Twice
Feb 8, 2012Code:
Whenever the textbox says "Default" and I click on the checkbox, the msgbox pops up twice. Any way to fix this?
Asp.net - Put The Checkbox To The Right Of The Label On Checkbox?
Jan 11, 2011Is there a way to put the checkbox to the right of the label on an asp checkbox? This code by default places the checkbox then the label...
[Code]...
How To Check And Uncheck All Asp.net Checkbox On Single Checkbox Check
Mar 7, 2011how to check and uncheck all asp.net checkbox on single checkbox check ?I have 5 asp.net checkbox on webform i want when 1 single checkbox checked then all checkbox will be cchecked and if checkbox is unchecked then all checkb ox will be unchecked ..
View 2 RepliesGet 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)...
[Code]...
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
[Code]...
.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?
[Code]...
.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 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 - .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:
[Code]...
