Copying DataGridViewRow To A DataTable?
Apr 16, 2009
tblProductsBindingSource, tblProductsTableAdapter I have delete the tblBindingNavigator,also my DataSet consist of 2 Data Tables namely tblProducts and tblChosenProducts, at this time tblChosenProducts is empty but has all the same Table Style of tblProducts. So at Form Load every things is working fine , what I would like to do is when I click in a cell of dgProducts (the DataGridView on my Form) is to populate my second Data Table(tblChosenProducts) and update it to the database(Invent_14April),
ublic Sub DgProduct_CellClick(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewCellEventArgs) Handles DgProduct.CellClick
[code].....
View 1 Replies
ADVERTISEMENT
Nov 25, 2011
This doesn't seem like something that should be confusing or difficult, but I'm having a hard time finding the answer to this problem. I want to copy columns with their data, not rows, from one large DataTable to a smaller one.I have a DataTable with many columns of data (around 20), and a string array of the columns (4 ) that I want in the copied DataTable. Is there a reasonable way to accomplish this task?
View 1 Replies
Apr 22, 2009
I have a copying error with my program. I am trying to copy the internet cache folder, and the error states that some files cannont be copied (read only maybe?) How can i make it copy, or just skip the uncopyable files?
My.Computer.FileSystem.CopyDirectory(Environment.GetFolderPath(Environment.SpecialFolder.Internet Cache), "d:My Documents")
View 12 Replies
Jun 18, 2012
Suppose I have a DataGridView called gridFiles.
For Each row as DataGridView in gridFiles.Rows
MsgBox(row.Cells("somekey").Value.ToString)
gridFiles.Rows.Remove(row)
Next
I will see message boxes, but only for every other row. What I think is happening is that the internal pointer for gridFiles.Rows gets off, because there is 1-fewer rows on the next iteration.
View 3 Replies
Oct 12, 2009
Why does this work:
_dgvHistory = DGV.Rows
For Each row As DataGridViewRow In DGV.Rows
DGV.Rows.Remove(row)
[code]....
View 3 Replies
Jun 1, 2009
im adding rows to a datagridview and i need to get the valuof the last row in mydatagridviewi have the following code so far:
dim row as new datagridviewrow
If DataGridView2.RowCount > 1 Then
Dim myrow As DataGridViewRow = DataGridView2.Rows(DataGridView2.RowCount - 1)
[code].....
View 11 Replies
Sep 17, 2009
setting a DataRowView equal to my DataGridViewRow.DataBoundItem, then using the DataRowView.Row property (In my code below).
Here's my code:
Dim tblTemp As New DataTable()
Dim row As Windows.Forms.DataGridViewRow
Dim rowView As DataRowView
[code]....
View 1 Replies
Sep 12, 2007
I want to copy a DataGridViewRow from DataGridView to another but when I try it I get this error:
InvalidOperationException: Row provided already belongs to a DataGridView control.
is there any other way to copy a DataGridViewRow ?
View 3 Replies
May 26, 2009
i want to change the color of a new datagridviewrow based on a string.the string can have many differant values, but will ALWAYS be a color.
dim Colorlist as new list(of string)
Colorlist.add("Red")
Colorlist.add("Blue")
for each col in colorlist
Dim myrow as new datagridviewrow
[Code]...
View 1 Replies
Mar 22, 2010
I have a DataGridView that is bound to a DataTable thru the code. I want to be able to modify the data when a row is selected from the Grid. How do I reference that row of data from the grid so I can convert it into the DataTable row to be updated? I'm trying to do something like this:
Dim row as DataGridViewRow = DirectCast(dgvAddress.CurrentRow, DataRow)
This isn't working. I'm getting an error basically stating that I can't convert a DataGridViewRow into a System.Data.DataRow.
[code].....
View 1 Replies
Nov 4, 2009
I have been looping thru all of the rows in a DGV and matching a variable to a specific cell in the row to 'do stuff to that DGVRow.
For Each dgRow As DataGridViewRow In Me.dgvInsertCommercial.Rows
If dgRow.Cells("SomeColumn").Value = pid Then
'do stuff
end if
Is there a way to actually query or make a selection instead of having to loop thru all of the dgvRows?jfc
View 4 Replies
Jun 10, 2011
I have an unbound DataGridView control where I have defined the columns at design time.Currently to add a new row I use a like this:
gridname.row.add(value1, value2, value3, value4)
This offends my sense of good programming because if I add a column to the grid or change the order of the columns then I need to alter the line above. What I want to do is to create a new datagridviewrow complete with columns and then populate the values like so:
dr.cells("FirstName").value = value1
dr.cells("LastName").value = value2
dr.cells("Address").value = value3
Just like I do when editing an existing row in the grid.I thought I could do the following:
Dim dr as New DataGridViewRow
dr = MyGrid.RowTemplate
I thought this would give me a new row complete with cells but no values. Appartently this is the wrong property. Is there a property that will give me a blank row, but with the cell names/types that have already been defined in the grid defined in the row?Yes, I know I can take an existing row and just clear the values but when this program load, there are not always existing rows.don't tell me I am going to have to add the columns myself. dr.cell.add(cell definition)
View 1 Replies
Jun 30, 2009
How can I toggle the selection of a datagridview row?If I pick the Row once it should "highlight"If I pick the same row again I want it to "unhighlight"this is what I have so far in a mousedown event:
If
Selected_RowNM = Selected_RowNM_Temp Then
DataGridView1.ClearSelection()
End If
View 17 Replies
Oct 25, 2010
When I use a DataTable as a DataGridView's DataSource, I often have to find which row(s) a user has selected and read specific values from the DataTable (not the DataGridView). I wanted to know if there is any reliable way of determining which DataRow a DataGridViewRow is bound to especially when the user has sorted the DataGridView on a column other than the default order.
Currently, I use code of this sort:
Dim sorting = ""
If DataGrid.SortOrder <> SortOrder.None Then
'get the actual row if the results are sorted'
sorting = "[" & DataGrid.SortedColumn.Name & "]" &
[Code] .....
View 1 Replies
Sep 2, 2009
Is it possible to get the column names from a DataGridViewRow object?
View 4 Replies
Aug 3, 2007
copying a datagridview's row to another datagridview. This would include the row's cell's contents also.
View 10 Replies
Jan 6, 2012
This works:
DataGridView.Rows.Add("Bla Bla Bla", value1, value2)
But if I do:
Dim newrow As New DataGridViewRow
newrow.SetValues("Bla Bla Bla", value1, value2)
If Not value1.Equals(value2) Then
[Code]....
the entire row is empty.
Why is the row full of empty cells?
View 1 Replies
Jun 13, 2011
Given the following code I get error
"Cannot bind to the property or column rname on the DataSource"
Public Class CustomerUpdFrm
Private RowPassed As DataGridViewRow = New DataGridViewRow ' Passed row variable
Private Sub CustomerUpdFrm_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
[cODE].....
View 4 Replies
Jun 18, 2009
DataGridViewRow.IsNewRow property is set for the bottom (empty) row. If I set a cell value in the bottom row using DataGridViewCell.Value, IsNewRow remains set. What is the correct way to programatically set a cell value in the botton row to clear IsNewRow?
View 4 Replies
Jul 6, 2009
I have a DataGridView that is bound to a list of objects called "BaseChange". The BaseChange objects are made up of 4 properties...
ChangeType
ChangeStatus
ChangeDescription
LastChangeDate
The datagridview has columns for all 4 values as well as a 5th (a checkbox column called "colIsSelected"). There is no problem binding the list to the grid and displaying the items. The problem is that the query that gets the selected items in the grid is giving me an implicit cast error when option strict is enabled.
This is the query...
Dim _changes As List(Of BaseChange)
_changes = (From _row As DataGridViewRow In dgvChanges.Rows() _
Where Convert.ToBoolean(_row.Cells(NAME_COLUMN_IS_SELECTED).Value) = True _
Select DirectCast(_row.DataBoundItem, BaseChange)).ToList()
...and it produces the correct results with option strict off. The implicit cast squiggle is on the "row As DataGridViewRow" code, and the full message is "Implicit conversion from 'Object' to 'System.Windows.Forms.DataGridViewRow'*".
If I exclude the "As DataGridViewRow" from the query, I get a late binding error on the _row.Cells and _row.DataBoundItem and this also fails option strict.I need this to work with Option Strict enabled, and in VB.
View 1 Replies
Aug 31, 2009
Is there a way to convert a DataGridViewRow object to a DataRow object?
View 2 Replies
Aug 18, 2011
I am trying to display value of the field ("UserID") for every row exists in datatable to checkboxlist(make the checkboxlist item selected).
I used for loop, but only the field value from last row of RoleUsers table is selected in the checkboxlist.
Here is my code
Private Sub DisplayRoleUser()
Dim conn As SqlConnection
Dim cmd As SqlCommand
[Code].....
View 3 Replies
Mar 15, 2010
I have a datatable and I apply a filter to the defaultview.rowfilter property of that datatable. If I then loop through the rows collection of the datatable, will I only be able to see those rows that the filter applies to, or will it loop through all the rows?
View 6 Replies
Apr 21, 2010
I am working on a project that takes an xml schema and xml data files and places them into a DataTable, the 2 files are generated from a working table that i have written to disk. I wish to load these 2 files into a DataTable. Here is What i have
vb.net
Friend Function CreateTable(ByVal tableName As String) As Boolean
Dim table As New DataTable(tableName)
table.ReadXmlSchema(tableName & ".xsd")
[code]....
this however produces the following error on line 3
Quote:
System.ArgumentException was unhandled Message=DataTable 'get_item_list' does not match to any DataTable in source.
get_item_list is the parameter passed into this function (tableName)
View 6 Replies
May 20, 2011
I have a datagridview bound to a datatable setting its datasource property to the datatable. I would like to have a child form that contains a list of columns associated with the datatable that contains a checkbox that will allow the user to hide and show the columns ( I do not know the best control to use here) (I assume this is the easy part as All i need to do is loop through each of the datatable's columns to get the column name)
now I would like save these visible columns on some event like form_closing so that the next time the user opens the form up it will remember the settings
View 5 Replies
Apr 16, 2012
I came across a problem with using a BindingSource as my DataGridViews.DataSource. Whenever I applied a filter to a column in the BindingSource and the user makes changes that don't match the column filter the DataGridViewRows would automatically disappear. A similar thing would happen when applying a Sort to a column. If the user made any changes the DridGirdViewRows would automatically sort causing rows to be moved around. This was not ideal for my application and there isn't anyway to stop this from happening with the BindingSource.
To correct this issue I have to use subsets of data. I use a DataView to apply the filter and sort to the main DataTable, which creates the subset DataTable.The problem is when I use the DataView.ToTable method I loose the Primary Key and RowError information. So I have to reapply this information everytime the user filters or sorts the DataGridView.Is there a better way to get a subset DataTable?[code]...
View 10 Replies
Jun 5, 2012
I have a datatable that has a resource in one field and hours used in another, it looks like this -
Resource Hours Used
Manager 1
Accountant 1
Field Staff 2
Accountant 3
Manager 4
Manager 1
Administrator 6
Field Staff 4
Manager 0.5
Administrator 1
What I want to do is be able to create a summary of the data table above that groups multiple occurrences of a resource and adds up the hours used for that resource, creating a summary that looks like this -
Resource Hours Used
Manager 6.5
Accountant 4
Field Staff 6
Administrator 7
View 15 Replies
May 28, 2007
Is there a simple way to assign a populated datatable's columns to another empty datatable? That is, I want to copy a datatable's structure only but not its data.
View 6 Replies
Feb 17, 2011
I'm using vb.net 2010.I have a DataSet with a Table and data. MyDataSet1 which contains Table1 I want to create another table that is the same as the Table1 but without data, but it should have the columns, etc.
View 1 Replies
Apr 8, 2009
I am getting array of selected datarows from a datatable.select.I use the commands below to get that array or datarows
Dim foundRows() As DataRow
strExpression =
Here is what I tried.I have looked at examples by MS but they all just write to the screen and I have no interest in that.
For Each rowWork In foundRows
dtWork.Rows.Add(rowWork)
Next[code]....
"LineOfBusiness = 'CPP'"
foundRows = modXchange.pdtWork.Select(strExpression)
Now, I want to place the rows from foundrows into an empty data table.I did what I thought was the obvious but that only returns a bunch of rows with no data
View 1 Replies
