Virtual Mode In DataRepeater Control / How To Update Data Changes
Feb 25, 2011
How do i make sure that the changes "done" by a user interacting with a DataRepeater control are reflected in the corresponding database source table? I have used DataRepeater in VirtualMode, do I have to supply my own code that will "actually" make corresponding changes to the actual tables, or is there a way of "configuring" or "binding" the controls on the DataRepeater to the "dataSet" so that the changes made by the user are reflected automatically in the underlying table? Whatever I have tried so far has yielded no results; whenever i edit the data on the control, the actual data is not updated. I attach a file showing the only events under which i have put some code: Load event of the Windows form, and the ItemValueNeeded event of the Repeater Control.
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Sep 4, 2011
i need to use virtual mode in a listview to load data from a table...what to add in the retrievevirtualitem event... i have a data bindingsource which is attached to the table..
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Apr 29, 2010
Visual Studio 2008 service pack 1 comes with Visual Basic Powerpack and has DataRepeatr control. i want to know that how I can add data in this control. i have in memory data. the examples i found on net are about binding DataSet to DataRepeater by fetching data from database. i want to bind in memory data. how to do this.
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Sep 21, 2009
I am using the Datarepeater control to make a report. I am including the a couple of bound labels and a checkbox in the Datarepeater item template. When I run the report and multiple items come up, I'd like to use the checkbox and clear the items by resetting there values to NOTHING. When I check the checkbox for the item, how do I code it so row.text=nothing only applies to the row that the checkbox is on?
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Nov 7, 2011
Put a datagridview in vb .net 2010 form, then on the form load, put this code.
[Code]...
Run the project. After some seconds, it crashes with System.StackOverflowException.
Someone have an idea of what happens? Seems a bug.
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Jun 22, 2011
I have a Booking Form and a Daily Jobs Form. and when the Booking Form TextBoxes And ComboBoxes have been filled with the relevant Data/Text. And when I click the BtnSave I want to UpDate Daily Jobs Form, DataRepeater1 with some of the TextBoxes And ComboBoxes.
With the DataRepeater1 I have Dragged And Dropped some of the TextBoxes and ComboBox From The DataSource Booking Form that I require. But Now This is where I am Stuck. do I write code for DataRepeater1 in the Booking Form Code or Do I write Code in the Daily Jobs Form, DataRepeater1. code.And How would I start the Code. I have looked at some walkthroughs and Video. But i cant seem to adapt the code to my requirements
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Sep 16, 2010
What is the real mode , protected mode , supervisor mode and the hypervisor mode ?
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Jan 17, 2011
Is it possible to get value of a text box, say at row 4 of a datarepeater. I did it by moving control to it, but that does not work the way I want. I used code DataRepeater1.currentIndex=5, and then picked the value. Is there any possibility of getting the value without moving control to this row. I mean the way we get value from datagridview (vrName=datagridview1.item(1,1).value)
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Jan 17, 2011
Is it possible to get value of a text box, say at row 4 of a datarepeater. I did it by moving control to it, but that does not work the way I want. I used code DataRepeater1.currentIndex=5, and then picked the value. Is there any possibility of getting the value without moving control to this row. I mean the way we get value from datagridview (vrName=datagridview1.item(1,1).value)
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Mar 24, 2010
I like the datarepeater control (cool toy) but it doesn't show in my WPF toolbox.
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Apr 12, 2011
Is the "DataRepeater" control derived from the "Visual Basic Power Packs" applicable on ASP.NET web forms? If not, is there a similar control for use on the ASP.NET web pages?
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Sep 10, 2010
is it posible to change a width of dataRepeater vScroll control
OR
How I can simulate mousewheel on datarepeater.item ?
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Aug 31, 2011
I have a checkbox as a control in a datarepeater object. I have an event handler function which handles the checkchanged event for this checkbox and sets the visibility of other fields based on it. However, the problem I am having is that the event handler function is getting fired when I set the datasource for the datarepeater - hence when the data is being populated. So the event handler function ends up trying to set the visibility of a field that has not been created yet and bombs out with a NullReferenceException error. Is there a way to stop this event handler being fired when the datarepeater is being populated? I only want this function to be called if that checkbox is changed by the user after the form has loaded.
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Mar 28, 2011
I'm seriously about to abandon this DataRepeater. I don't want to. I want greater design control than the DataGridView. I've played with various Events for days and have settled on the CheckBox.CheckChanged Event.
What I'm trying to accomplish: My Bound DataRepeater has an UnBound CheckBox in each DataRepeaterItem.When the user 'Checks' the CheckBox, I want to change the value of a NumericUpDown Control to the value of a hidden, Bound Label.
[Code]...
This causes other, seemingly random, DataRepeaterItems (Rows) to also become Checked and thus it's NumericUpDown value to change.Am I going about this from the wrong angle? Can't see the forest for the trees?
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Jan 15, 2011
I have a table in my MySQL database and it contains these items:
User_ID(Primary key, auto-increment)
Username
AvatarPicLink
Location
How can I insert everything into a Datarepeater? Username would be in a Label as would Location, and AvatarPicLink would be in a Picturebox.
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Nov 24, 2009
I am manully adding data to DataRepeater, but once scrolling up and down, the data is vanished. I have only a text box in the item template.
DataRepeater1.AddNew()
DataRepeater1.CurrentItem.Controls("txt1").text="yehaa"
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Sep 4, 2009
I have created a WFA that has 5 projects in it. One of the projects runs against 600 + servers and queries each server for local administrator accounts and then dumps that into an excel file. It will also check to see if the account that is in a local administrator group is disabled in AD. The problem that I have is that when I run the particular project I will run out of virtual memory. I have 4 gig on my computer. Is there a way to control this?[code]...
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Jul 9, 2010
Here is what I have but it only works when clicking on the row. I have tried a For Each and it still only does it when clicking on the row and not every time.Basically, I am trying to get a button to change the way it looks or if it even appears and them making a picture box appear or not.
If DataRepeater1.CurrentItem.Controls("TRANSPORT_SUFFIXLabel1").Text = "A" Or DataRepeater1.CurrentItem.Controls("TRANSPORT_SUFFIXLabel1").Text = "B" Then
DataRepeater1.CurrentItem.Controls("Edit_Checklist_Btn").Enabled = True[code]....
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Jun 30, 2010
I have a UserControl that contains other controls that I would like to be able to rearrange or resize at design time. So I have a custom designer for the UserControl that inherits from System.Windows.Forms.Design.ParentControlDesigner, and I call EnableDesignMode on the child controls from within the designer. That way, at design time, I can drag and drop the child controls to move them, or resize them. But I can also drag and drop the child controls somewhere else on the form that is outside of the original UserControl. Is there a way I can limit the child controls from being moved or resized outside the UserControl?
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Jul 7, 2009
<div style="position: absolute; left: -10000px; top: 0px; width: 1px; height: 1px; overflow-x: hidden; overflow-y: hidden;" id="_mcePaste">Partial Class _Default</div> <div style="position: absolute; left: -10000px; top: 0px; width: 1px; height: 1px; overflow-x:
[code]....
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Jun 4, 2012
I am using datarepeater to display rows of information from database. When i click a 'save' button and i would like to loop through the rows of data in repeater. The code i am using is able to do all these. The only problem i encountered is at the Interface side. When i am looping the data-repeater. The selection 'frame' (refer to the picture point as 'A') is moving from record to the next record and scrollbar is auto moving as well to scroll to further down until the last row where looping finish.Is there anything can be done to remove the selection 'frame' and stop datarepeater from scrolling while looping the datarepeater.
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Feb 17, 2010
I was trying to add a worksheet to my current active workbook. I had misreferrenced the command and got an exception thrown. OK, that happens. But what happened next kinda threw me for a loop. Now, and it still happening, everytime I use F10 step I get a new worksheet added. It is the strangest thing. OK, I gave up trying to figure out this problem. I solved it by selecting the entire form1.vb file and pasting it into a new application.
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Sep 8, 2011
Using the walkthrough from [URL], I implemented a DatagridView in virtual mode, totally unbound, in VB 10 Express (we are talking WinForms).
I understand that CommitEdit (DataGridViewDataErrorContexts.Commit) commits the current cell's contents to the data cache.
The example uses row-level commit, i.e. it pushes the values into a row buffer until the current row is left. Only then the row is added to (or updated in) the data store. That's exactly what I do, too.
Question -- how can I commit the current row programmatically without leaving it? (I want to commit the whole row, not just the current cell.)
If the user leaves the row, there is a RowValidating, RowValidated, RowEnter event sequence where the datastore update is taken care of. So one idea (currently my only one) was to simply re-set CurrentCell to Nothing, for example.
But I cannot just set the DataGridView's CurrentCell property to Nothing (or any cell outside of the current row) since I want to commit from within an event handler of a custom edit control created by a custom column, and I see an System.InvalidOperationException exception when setting CurrentCell there.
In fact, it is a tiny button right to a combo box, i.e. I create a DataGridViewComboBoxCell descendant which is a DataGridViewComboBoxColumn descendant's edit control. My special ComboBox cell adds a tiny button which should commit the current row. Unfortunately, that button's _Click event handler cannot change CurrentCell since DetachEditingControl throws the exception then.
Obviously, I must delay the CurrentCell re-assignment until the whole _Click event has been processed. Or what? How would I do that -- register a custom Windows message, SendMessage that one to me, and override the windows procedure of the form so it re-sets CurrentCell when this message is received? (Hello?)
There should be a rather easy way to let DataGridView commit all changes by firing the events that I handle to perform the datastore update, no?
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Oct 25, 2010
Trying to read data through the virtual COM port created by bluetooth.
The original console program (and the trimmed version below) was designed to read data from serial port COM1 and output the data to notepad. The program works; hook the bar code reader to COM1, activate bar code reader, swipe card, bar code reader beeps, data input collected from COM1 and sent out to notepad.
The problem: Bluetooth is wanted instead of serial cable.
We disconnected the serial cable, we connected a USB bluetooth receiving device onto the XP. XP installed the bluetooth device drivers 'Generic Bluetooth Radio' and 'MS Bluetooth Enumerator'. Bluetooth detected the bar code reader device and created COM5 outgoing SPP slave and created COM6 incoming.
But now; activate bar code reader, swipe card, bar code reader beeps, NO data input collected from COM5.
[Code]....
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Aug 13, 2010
I am writing a small app that is retrieving data from a device connected to a virtual com-port. I connect without problems to the device using the settings 9600-8-N-1.
I need to send the command <esc>MS , the device then sends back the data to a computer. I have tried this using Hyperterminal with success. I also did this with Excel and VBA. I used the MSComm32 Active X control:
MSComm1.Output = Chr$(27) + "M" + "S" + Chr$(13)
Msgbox(MSComm1.Input)
This made the data from the device pop up in a messagebox. I am writing a winforms app in vb.net, using VS2005. I have a form, on which I have a Placed a SerialPort control, named sp. My sample code is as follows:
Private Sub Form1_Load(ByVal
sender As System.Object,
ByVal e
[CODE]...
This returns the error message "Error: expecting a command". I have done som tests in HyperTerminal, and have concluded with:
-If I dont send <esc>, I get error "Expecting a command"
-If I send wrong command (ie MD instead of MS) i get error "Bad command"
Based on this, I suspect that I don't pass the escape character correctly to my device. So I wonder how to do this?
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Jan 4, 2010
I have a document with VBA controls in it that I created in MS Word 2003. After migrating to MS Word 2007, I get the message that "Can't exit design mode because control 'lblEmaillist' can not be created".
After reading through the various forums here and on microsoft.com it seems to be a known problem. I looked at these articles but am still having a bit of trouble...
[URL] refers to the same problem in word 2000 but after following the directions I still am getting the problem.
The problem does not occur when I open the document in MS Word 2007 or MS Word 2003. The problem only occurs when I open click on the link from IE.
I've set up the location as a trusted location in Office 2007 settings so that should not be an issue.
The document in question is being saved in the word 97-2003 format due to the fact that some people here have not upgraded to office 2007. I tried saving it as a .docm for office 2007 but the error message still came up.
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Jun 8, 2011
Basically what needs to happen is when the user clicks edit onto the gridview and clicks on a certain textbox a javascript calendar popups up and the user picks a date.So far, I can set it statically and the calendar works for that one row, but not the other rows since the ID changes.My ASP Code (id of textbox has been set to txtStartDate):
<asp:TemplateField SortExpression="StartDate" HeaderText="Start Date">
<EditItemTemplate>
<asp:TextBox ID="txtStartDate" onClick="ddlchange()" Runat="server" Text='<%#Bind("StartDate")%>'>
[code]....
This works, for one textbox. It does not work for other since 'ct102' changes with every row.
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Aug 12, 2009
I am staring on the programming world using VB 2008 express edition, mi project is data acquisition software which today is almost ready to go, but I want to add an extra ornament to the digital value display.I am using textcontrol to display numeric values, and the fixture that I would like to add is to be able to resize the control in run mode using the mouse left click hold down on the edge of the control and just move the mouse and the control expand or shrinks, as the same action as when we want to resize any form.
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Sep 24, 2011
I've attached a picture of the list view control that I am using. I've been fine until now, I want to save the entire line of items in the list view control (item_description, price) and dump it into the MySQL database to allow tracking of reciepts. The following code that I have saves the first column worth of information, but I cant figure out a way to save the second column (the price)
Dim li As ListViewItem
For Each li In ListView1.Items
CurItems = CurItems.ToString + li.Text + ", "
Next
Oh right, and I'm making it comma seperated values so I can pull it up in a readable format again.
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Nov 25, 2011
I'm trying to create a toolstrip using the system render mode, but the split button control doesn't look right in Windows 7 It's almost like the drop down button is offset to the right by 1 pixel, or part of the border is missing.
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