Does anyone know how to cancel a row change in a data grid? What I want is to allow the user to modify a row in a grid. When they try to leave a row after changing it, then prompt them to save the changes before moving to the new row. So far, the rowleave event is working to prompt them to save or not. But I'd like to give them the option to cancel...which should leave them on the original row. The rowleave event, nor any other similar event, appears to have the abiity to cancel the move.
I thought about remembering the row number and just putting it back on that row...but it seems like there probably should be a better way to cancel the row change.
If I wanted to change the value of a column for every row in a datagridview, what is the best way to do it? I have encountered an issue when the datagridview is bound to a filtered DataView and need to know what I am doing wrong. The code I would normally use is
Code: For Each r As DataGridViewRow In DataGridView1.Rows 'don't touch the blank line, it is pointless and will error out If r.IsNewRow = False Then 'set the current line with the current ID.
I'm working on this form, and I got 1 text field I am using for validation. If the user doesn't put text inside the box and he clicks the save button it throws a messagebox saying that he didn't put text inside the box, but it still saves the data to the database anyways.
If txtUsername.Text = vbNullString Then MsgBox("All Fields are Required!!") Me.btnSave.Enabled = False
How could I change the column header of the Data Grid to center or right but not left as default? [We are talking 'bout Data Grid here, recently I always receive answers for Data Grid View instead :( ] I just want to re-align the header only, not the whole column. There's another topic discussed bout this already but it's not working in my case. Here is my code:
Public Class Form1 Private Sub DataGrid1_Paint(ByVal sender As Object, ByVal e As System.Windows.Forms.PaintEventArgs) Handles DataGrid1.Paint
This is a VB .NET application where we are showing the output of a SQL statement in a Datagrid view. using .NET 2005.We need to get the seperators of the headers on the grid control to be the same colors as the GridColor on the form. See the picture below:We've tried looking through all of the properties of the DataGridView control, and found some interesting things that looked promising such as the DataGridViewAdvancedHeaderStyle, and DataGridViewHeaderBorderStyle, but none of it seems to allow you to change the colors on it.Does anyone know how to do this without remaking the entire thing with a GDI+ control?
I have the below code that i am trying to have two datagrids with a grid splityter in the middle. The split seems to be working fine but the issue i am having is when I populate the datagrid it is growing in height and changing the splitter instead of leaving the height alone and adding scroll bars.
What simple thing am I overlooking? <Grid x:Name="gdHistory" Grid.Column="0" Grid.Row="2" > <Grid.RowDefinitions>
I have a problem with importing an excel into a data grid.
Here is my code:
Try Dim _Obj As New ExcelConnection.ExcelConnection _Obj.ImportAttendence("c:Info_pc.xls", DataGrid1) Catch ex As Exception
End Try
In the excel i have numers and text and "Service Pack", "Processor Speed" and "Numar procesoare(Number of processors)" and the values for these are numers. in the data grid when i import the excel those values doesn't appear, i receive the value "null".
I have 1 datagridview and i want to transfer all records to another datagridview, how can i possibly do that. Newbie here. This is my code in transferring 1 record to another datagridview to another one.
I wanted to change the style, width and color of the grid lines for my X/Y scatter graph.Basically, I want to distinguish the minor grid lines and the major grid lines.
i'm building an application using ms chart control on VB 2010. I want my chart look something like that:url...is it possible to achieve similar results in VB?
1) is it possible to remove that black grid of vb chart, or just remove half of it (like in that example)? 2)is it possible to change the color of that grid? 3)is it possible to rotate the axis? for example Y goes from top to bottom, X goes from left to right? 4) is it possible to style every point of chart with squares or dots? (like in example)
I have a typed dataset that has some required columns. I created a form called by TableNewRow to prompt the user and verify the required selections. If the user cancels the details form I can't seem to get rid of the row that was created, it's stuck there blank.
code excerpt:
Private Sub myDataTable_TableNewRow(ByVal sender As Object, ByVal e As System.Data.DataTableNewRowEventArgs) Handles Me.TableNewRow Dim f As New Form1
Using the following VB.Net simple code to upload files in FTP, a call to WebClient.CancelAsync() doesn't actually cancel the upload.Does someone know why, and what can be done about this?
Private Sub UploadProgressChanged(ByVal sender As Object, ByVal e As System.Net.UploadProgressChangedEventArgs) 'TO-DO: Why is pbar empty? ProgressBar1.Value = e.ProgressPercentage Label1.Text = e.BytesSent & " bytes sent" End Sub
How to change vb .net datagridview row color based on grid checkbox value. Having bound DataGridView. BindingSource as data source. called DGV. I m using this code under cell_formatting event
I just want to display data in a DataGridView (from SQL - already made the connection) based on what is selected in a ComboBox (data that is also coming from SQL). The 2 are separete on the form. I am using VB 2010.
This doesn't work for me: objCommand2.CommandText = "SELECT ProductID, Name, Color, Size, ListPrice FROM SalesLT.Product WHERE ProductCategoryID = " & cbCategory.SelectedValue
I'm trying to create a simple Data Grid that will automatically save changes. So far I have a data grid connected to a MS Access 2007 Database that reads the data. I can create new fields in the Data Grid, but I need to program to save the data automatically to the database on update (or on close).
I have a ListView that populates some fields whenever the user selects an item. However, if they change the data in the fields and then select a new item without saving, I want to display a message box that warns that their changes will be lost, and asks them to confirm whether to continue. Sounds simple.
Unfortunately, the ListView's SelectedIndexChanged event cannot be cancelled, and it's actually called for each change in the selection. So, for example, if item 1 is selected and the user then selects item 2, the event is called twice: once to remove the selection of item 1, and then to add the selection of item 2. If you go from having one item selected to having five (for example), the event fires to remove your original selection, and then again for each of your new selections - six hits in all.
Obviously, this makes it a bugger to determine when the event should be cancelled and reset back to the original. I obviously don't want my message box appearing six times....
Data binding should be an extremely simple thing to manage but I can't find a SIMPLE solution to the following problem.
I have two forms
Form1 contains a 4x4 MSFlexGrid (unfortunately an unmanaged COM object but I can merge cells, which I can't do with a managed Datagrid)
Form2 contains other controls which change the data in the Flexgrid.
I connect the two with a Public 4x4 array. Form2 changes the data in this array. I can update the grid data by reading the array. But how do I bind the Grid to the array so that it auto-updates - which is the whole point of binding isn't it?
I am trying to pass a different template to a Telerik Grid, depending on if the add button or the edit button is pressed (on creation: a few field to fill. on existing: add button : some extra fields to fill, edit button : most field are read-only, new field to fill).
Dim myGrid = Html.Telerik().Grid(Of SomeModel) _ .Name("myGrid") If Model.Action = AddNewData Then myGrid.Editable(Sub(editing) _
[code]....
I have no idea on how to do the if "gridBoutonPushed = Add" then part.
I have a datagridview which have 5 columns. The name of the columns are T,C,F,S,H. [cod]e...
So i want to display this data in datagried view. I must display the number beside T to T column, the number beside C to C column and so on. It should only display number in the respective column. It should not display the T,C and so on. [code]...
i have a form which search data in specific date and show result in the datagridview, what i want is that when delete button is clicked all datas that in the datagridview will be deleted sameway in the database
