Good morning,
I have a form with two textbox and a DataGridView.
I'm used to fill my controls then i press Tab to switch to the next one.
However, when i switch from my textbox to my DataGridView, the selected cell is the second one of the first row => DTG.Rows(0).Cells(1).
I need to enter on the DTG.Rows(0).Cells(0) to fill my DTG without using my mouse.
I tried the code bellow :
Public Sub txtBoxTest_Leave() Handles txtBoxTest.Leave
DTG.Focus()
DTG.CurrentCell = DTG(0, 0)
DTG.BeginEdit(True)
End Sub
The cell seems to be selected, but it is not in editmode.
Modify the edit mode to EditOnEnter does not resolve my problem :
DTG.EditMode = DataGridViewEditMode.EditOnEnter
Can someone help me please ?
EDIT :
My datagridview cells are in ReadOnly = False.
Try this:
Dim cell as Windows.Forms.DataGridViewCell= dataGridView1.Rows(0).Cells(0)
DataGridView1.CurrentCell = cell
DataGridView1.BeginEdit(True)
Related
In an access form, I try to make a list field visible when the fokus is on another textfield in which new data should be filled in. The backround is that one should know the last data inputs to create a new one.
As a first step I tried to make the list (liste91) visible when clicking on a button, but I failed using the following code.
Private Sub Befehl97_Click()
Forms!projects!liste91.SetFocus
Me.liste91.visible = True
End Sub
I get error in the line Me.list91
what is wrong?
thank you for your help!
You can't set focus to something not yet visible. Just switch the order:
Private Sub Befehl97_Click()
Me.liste91.visible = True
Me.liste91.SetFocus
End Sub
I want to programmatically select/highlight entire column on button click to let users know what they searched.
This is what currently happens on button click ("GO" button)
but this is what I need to happen.
I have tried these so far to no avail:
DataGridView2.SelectionMode = DataGridViewSelectionMode.FullColumnSelect
DataGridView2.Columns(2).Selected = True
Doing so gave me this error: DataGridView control's SelectionMode cannot be set to FullColumnSelect while it has a column with SortMode set to DataGridViewColumnSortMode.Automatic.
I also tried to simply select the whole column. No error, but it didn't work.
DataGridView2.Columns(2).Selected = True
Just set the Selected property of each cell in the column.
Found this thread. I modified the code like so:
Dim row As DataGridViewRow
For Each row In DataGridView2.Rows
row.Cells(1).Selected = True
Next
and placed it inside Private Sub Button1_Click
I noticed that the first cell is automatically selected. This solved that problem.
I've got a a bit of code that is allowing a Results box to pop up, populating a DataGridView with information. The DataGridView uses the same BindingSource that another DataGridView uses, so when one is clicked, the other automatically moves to the same selected cell.
The issue I am having is the Result_DataGridView doesn't always contain all of the same rows as the master DGV, as it hides rows that don't match a criteria. If the user clicks on a cell on the Master DGV that isn't present in the Result DGV, the Result DGV un-hides that row (as you can't hide a selected row).
I'm currently trying to use this method to hide the row that appears again, but because of how VB treats "Entering a cell" it fires before the cell actually appears (as it fires on input focus, but before the cell actually appears in the DGV, so that row never gets checked)
Private Sub Result_Datagridview_CellEnter(sender As Object, e As DataGridViewCellEventArgs) Handles Result_Datagridview.CellEnter
Dim Result As Integer
Dim i
For row As Integer = 0 To Result_Datagridview.RowCount - 1
i = row
Result = Array.Find(ResultArray, Function(x) x = Result_Datagridview.Rows(i).Cells(0).Value)
If Result = 0 Then
Result_Datagridview.Rows(i).Visible = False
End If
Next
End Sub
If there was a ".RowsUnhidden" event, this would work fine.
Note - the ResultArray contains all of the index numbers that need to remain visible, the check is performed to see if any rows exist with an index number that does not appear in the array, if so, hide it again.
Does anyone have a work around or better approach to this?
Handling the RowEnter event, you can suspend the binding and reset row.Visible to False.
So, if ResultArray is an Integer array of visible row indices, you simply do the following:
Private Sub Result_Datagridview_RowEnter(sender As Object, e As DataGridViewCellEventArgs)
If Not ResultArray.Contains(e.RowIndex) Then
Dim currencyManager1 As CurrencyManager = DirectCast(BindingContext(Result_Datagridview.DataSource), CurrencyManager)
currencyManager1.SuspendBinding()
Result_Datagridview.Rows(e.RowIndex).Visible = False
currencyManager1.ResumeBinding()
End If
End Sub
You can look at the DataGridView.CellStateChanged event. It occurs when a cell get the focus, lose it, is selected, ...
I'm trying to focus input and fire the editing event on each new row that I add to a DataGridView in my form.
This is the code I am trying to user to achieve this.
Private Sub grd_GoldAdders_RowsAdded(ByVal sender As Object, ByVal e As System.Windows.Forms.DataGridViewRowsAddedEventArgs) Handles grd_GoldAdders.RowsAdded
Dim grid As DataGridView = DirectCast(sender, DataGridView)
grid.ClearSelection()
If grid.Rows(e.RowIndex).Cells("grid_flag").FormattedValue = Constants.[New] Then
For Each cell As DataGridViewCell In grid.Rows(e.RowIndex).Cells
If Not cell.Visible Then Continue For
grid.CurrentCell = cell
grid.BeginEdit(False)
Exit For
Next
End If
End Sub
The "grid_flag" is a hidden cell which is used to store custom states for a row.
Prior to adding a row, this is what we see on the form:
This is what we see when we actually try and add a new row:
Notice that both the column 0,0 and the first visible column of the new row are selected, but the column 0,0 has the focus. I do not wish for 0,0 to either get selected or have the focus. I also see here that the row indicator is pointing at row 0 too...
This is how I would like to see things after clicking my Add button:
Does anyone know where I am going wrong with the code? I've searched SO for the most part of the day trying to solve this one.
Instead of using your DataGridView's RowAdded event to set the CurrentCell, add the following code wherever you're adding a new record to your DGV (in your Add button's Click event I assume):
''# Add the new record to your Data source/DGV.
For Each row As DataGridViewRow In grd_GoldAdders.Rows
If row.Cells("grid_flag").FormattedValue = Constants.[New] Then
grd_GoldAdders.CurrentCell = row.Cells("AssySiteColumn") ''# I'm calling the first column in your DGV 'AssySiteColumn'.
grd_GoldAdders.BeginEdit(False)
Exit For
End If
Next
This code simply loops through all the rows in your DGV and specifies as the CurrentCell the first cell in the first row with your Constants.[New] flag value.
I want to have a DataGridView that has two columns. The first column will always be of type DataGridViewComboBoxColumn. Based on the selection in that column, I'd like to be able to change the corresponding cell in the second column to either a DataGridViewComboBoxCell or a DataGridViewTextBoxCell.
I'm thinking I just need to make the second column of type DataGridViewColumn, but don't understand the mechanics of how to change the cell type on the fly.
I'm working with VB.NET in Visual Studio 2005.
Thanks in advance!
Update: One way around it, I suppose, is to make the second column as a DataGridViewComboBoxColumn, and change the attributes of the cell so that it either behaves like a drop-down list, or as an (editable) drop-down with no elements. The latter looks enough like a text box that I could live with it, and it wouldn't involve changing the type of the cell.
I don't have the VB.Net version,but hopefully this quick C# snippet will help you or point you in the right direction.
In this example, I set up a simple DataGridView with 2 columns. The first being a DataGridViewComboBox populated with two choices: "Text" or "Combo".
The second column is initially set to DataGridViewTextBoxColumn from the designer.
I handle the CurrentCellDirtyStateChanged event on the DataGridView. I check if the cell is dirty and only check the first column (The ComboBox). You gotta call the CommitEdit to get the new value in the combo or else you will be looking at the previous value. Based on the selection in the combo box I then overwrite the cell in the 2nd column with a new cell of that type.
You would add your own logic (populate the drop downs and handle the value). You might want to store the value and then put it back into the cell or whatever.
Here is the code I used and did a quick and dirty test on:
private void dataGridView1_CurrentCellDirtyStateChanged(object sender, EventArgs e)
{
if (dataGridView1.IsCurrentCellDirty == false)
{
return;
}
dataGridView1.CommitEdit(DataGridViewDataErrorContexts.Commit);
if (dataGridView1.CurrentCell.ColumnIndex == 0)
{
if (((string)dataGridView1.CurrentCell.Value) == "Text")
{
dataGridView1.Rows[dataGridView1.CurrentCell.RowIndex].Cells[1] = new DataGridViewTextBoxCell();
}
else if (((string)dataGridView1.CurrentCell.Value) == "Combo")
{
dataGridView1.Rows[dataGridView1.CurrentCell.RowIndex].Cells[1] = new DataGridViewComboBoxCell();
}
}
}
Here is a quick VB translation, that I tested and works.
Public Class Form1
Private Sub DataGridView1_CurrentCellDirtyStateChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles DataGridView1.CurrentCellDirtyStateChanged
If DataGridView1.IsCurrentCellDirty = False Then
Return
End If
DataGridView1.CommitEdit(DataGridViewDataErrorContexts.Commit)
If DataGridView1.CurrentCell.ColumnIndex = 0 Then
If CStr(DataGridView1.CurrentCell.Value) = "Text" Then
DataGridView1.Rows(DataGridView1.CurrentCell.RowIndex).Cells(1) = New DataGridViewTextBoxCell
ElseIf CStr(DataGridView1.CurrentCell.Value) = "Combo" Then
DataGridView1.Rows(DataGridView1.CurrentCell.RowIndex).Cells(1) = New DataGridViewComboBoxCell
End If
End If
End Sub
End Class
You will lose any value stored in that column, so you would need to save it first.
Jon
You can create your own cell template that hosts a user control. In the user control you add a textbox and a combobox, and add a method/property to show one and hide another.
This sample creates a radio button cell, it is not hard to change the code to host a user control.
dgvCell = new DataGridViewTextBoxCell(); // code to remove checkbox
dgvCell.Value = string.Empty;
dgv_modi_del_trans.Rows[1].Cells[0] = dgvCell;