'DataGridView with SuggestAppend comboBox columns and dynamic Cell assignment
I have been doing some research and could not find an answer for this, probably I'm not asking the right question or what I'm attempting might not be possible.
So, supposing I have a DataTable
binded to a DataGridView
, is it possible to use SuggestAppend
in some of the data source columns?
As an example (code below), I have a DataGridView
with columns Employee and Status. The Status column is a DataGridViewComboBoxColumn
with items Active and Withdraw. The grid has a DataTable
as source which has the same columns (Employee & Status), I'm using this because it's easier to export the data once modified however there might be a better way.
So, is it possible to have my DataTable
use the columns I've created for the DataGridView
?
Code for testing:
$mainForm = New-Object System.Windows.Forms.Form
$mainForm.StartPosition = 'CenterScreen'
$mainForm.FormBorderStyle = 'Fixed3D'
$mainForm.Text = 'Test'
$mainForm.WindowState = 'Maximized'
$bounds = ($mainForm.CreateGraphics()).VisibleClipBounds.Size
$dataGrid = New-Object System.Windows.Forms.DataGridView
$dataGrid.Size = New-Object System.Drawing.Size(($bounds.Width-20),($bounds.Height-140))
$dataGrid.Location = New-Object System.Drawing.Size(10,60)
$dataGrid.AllowUserToAddRows = $true
$dataGrid.SelectionMode = 0
$dataGrid.MultiSelect = $true
$dataGrid.ReadOnly = $false
$dataGrid.RowHeadersVisible = $false
$dataGrid.ColumnHeadersBorderStyle = 2
$dataGrid.EnableHeadersVisualStyles = $true
$col1 = New-Object System.Windows.Forms.DataGridViewComboBoxColumn
$col1.Name = 'Status'
$col1.HeaderText = 'Status'
$col1.Items.AddRange('Active','Withdraw')
$dataGrid.Columns.Add([System.Windows.Forms.DataGridViewColumn],'Employee')
$dataGrid.Columns.Add($col1)
$dataGrid.Add_EditingControlShowing({
$box = $_.Control -as [System.Windows.Forms.ComboBox]
if($box)
{
$dataGrid.EditingControl.DropDownStyle = [System.Windows.Forms.ComboBoxStyle]::DropDown
$dataGrid.EditingControl.AutoCompleteMode = [System.Windows.Forms.AutoCompleteMode]::SuggestAppend
}
})
$dataGrid.AutoSizeColumnsMode = [System.Windows.Forms.DataGridViewAutoSizeColumnMode]::Fill
#$dataGrid.Columns[-1].AutoSizeMode = [System.Windows.Forms.DataGridViewAutoSizeColumnMode]::Fill
$mainForm.Controls.Add($dataGrid)
#### Begin of DataTable as Source here
$source = @'
Employee,Status
user.example1,Active
user.example2,Withdraw
user.example3,Withdraw
user.example4,Active
'@ | ConvertFrom-Csv
$columns = $source[0].PSobject.Properties.Name
$table = New-Object System.Data.DataTable
foreach($column in $columns)
{
$i = New-Object System.Data.DataColumn
$i.DataType = [string]
$i.ColumnName = $column
$table.Columns.Add($i)
}
foreach($line in $source)
{
$row = $table.NewRow()
foreach($column in $columns)
{
$row.$column = $line.$column
}
$table.Rows.Add($row)
}
$dataGrid.DataSource = $table
$mainForm.Add_Shown({ $mainForm.Activate() })
$mainForm.ShowDialog()
Solution 1:[1]
I got this working thanks to @JohnG's guidance, if this is useful to you thank him not me.
What's included on the example code?
DataTable
bounded toDataGridView
DataGrid Columns
paired withDataTable
columnsDataGridViewComboBoxColumn
withDropDown
andSuggestAppend
- Dynamic cell assignment, this in theory could be done using
DataColumn's
expression but I couldn't getIIF
conditions working on PowerShell so I used the.Add_CellEndEdit
event to update theDataBound
item. i.e.:$this.CurrentRow.DataBoundItem['Code'] = '1'
Example Screenshot
Code Snippet
Add-Type -AssemblyName System.Windows.Forms
Add-Type -AssemblyName System.Drawing
Add-Type -AssemblyName PresentationFramework
#### Begin of DataTable as Source here
$source = @'
Employee,Status,Code
user.example1,Active,1
user.example2,Withdraw,0
user.example3,Withdraw,0
user.example4,Active,1
user.example5,Withdraw,0
user.example6,Active,1
'@ | ConvertFrom-Csv
$columns = $source[0].PSobject.Properties.Name
$table = New-Object system.Data.DataTable
$col = New-Object System.Data.DataColumn
$col.DataType = [string]
$col.ColumnName = 'Employee'
$table.Columns.Add($col)
$col = New-Object System.Data.DataColumn
$col.DataType = [string]
$col.ColumnName = 'Status'
$table.Columns.Add($col)
$col = New-Object System.Data.DataColumn
$col.DataType = [string]
$col.ColumnName = 'Code'
$table.Columns.Add($col)
foreach($line in $source)
{
$row = $table.NewRow()
foreach($column in $columns)
{
$row.$column = $line.$column
}
$table.Rows.Add($row)
}
##########
$mainForm = New-Object System.Windows.Forms.Form
$mainForm.StartPosition = 'CenterScreen'
$mainForm.FormBorderStyle = 'Fixed3D'
$mainForm.Text = 'Test'
$mainForm.WindowState = 'Maximized'
$bounds = ($mainForm.CreateGraphics()).VisibleClipBounds.Size
$dataGrid = New-Object System.Windows.Forms.DataGridView
$dataGrid.Size = New-Object System.Drawing.Size(($bounds.Width-20),($bounds.Height-140))
$dataGrid.Location = New-Object System.Drawing.Size(10,60)
$dataGrid.AllowUserToAddRows = $false
$dataGrid.SelectionMode = 4
$dataGrid.MultiSelect = $true
$dataGrid.ReadOnly = $false
$dataGrid.RowHeadersVisible = $false
$dataGrid.ColumnHeadersBorderStyle = 2
$dataGrid.EnableHeadersVisualStyles = $true
# Pairing DataPropertyName with DataTable's column Names
$col0 = New-Object System.Windows.Forms.DataGridViewTextBoxColumn
$col0.HeaderText = 'Employee'
$col0.DataPropertyName = 'Employee'
$col0.SortMode = 'NotSortable'
$dataGrid.Columns.Add($col0)
$col1=New-Object System.Windows.Forms.DataGridViewComboBoxColumn
$col1.HeaderText = 'Status'
$col1.DataPropertyName = 'Status'
# Using DataTable 'Status' column unique values as DataSource
$col1.DataSource = $table.Status | Select-Object -Unique
$col1.SortMode = 'NotSortable'
$dataGrid.Columns.Add($col1)
$col2 = New-Object System.Windows.Forms.DataGridViewTextBoxColumn
$col2.HeaderText = 'Code'
$col2.DataPropertyName = 'Code'
$col2.ReadOnly = $True
$col2.SortMode = 'NotSortable'
$dataGrid.Columns.Add($col2)
$dataGrid.Add_EditingControlShowing({
# Not entirely sure how this works but it works lol
# Basically the only column that can behave as WinForms ComboBox is
# DataGridViewComboBoxColumn. When this is True we can enable DropDown and SuggestAppend
# to the EditingControl. This code is emulated from C# and not sure if it's the right approach
# but still it works.
if($_.Control -as [System.Windows.Forms.ComboBox])
{
$this.EditingControl.DropDownStyle = [System.Windows.Forms.ComboBoxStyle]::DropDown
$this.EditingControl.AutoCompleteMode = [System.Windows.Forms.AutoCompleteMode]::SuggestAppend
}
})
$dataGrid.Add_CellEndEdit({
$row = $this.CurrentRow.DataBoundItem
# I tried this to work in both ways, meaning, the value of 'Status' would
# dynamically update the value of 'Code' and vice versa but the DGV gets super buggy
# Seems like you need 'INotifyPropertyChanged' on the bound DataTable but couldn't
# figure out how to make it work in PowerShell yet.
# Source: https://stackoverflow.com/questions/1516252/how-to-programmatically-set-cell-value-in-datagridview
if($row.Status -eq 'Active')
{
$this.CurrentRow.DataBoundItem['Code'] = '1'
}
else
{
$this.CurrentRow.DataBoundItem['Code'] = '0'
}
})
$dataGrid.AutoSizeColumnsMode = [System.Windows.Forms.DataGridViewAutoSizeColumnMode]::Fill
$dataGrid.Add_DataError({
# Error handling here
# https://docs.microsoft.com/en-us/dotnet/api/system.windows.forms.datagridview.dataerror?view=net-5.0
$_.Cancel = $true
})
$mainForm.Controls.Add($dataGrid)
$dataGrid.DataSource = $table
$bulkUpdateBtn = New-Object System.Windows.Forms.Button
$bulkUpdateBtn.Size = New-Object System.Drawing.Size(85,30)
$bulkUpdateBtn.Location = New-Object System.Drawing.Size(($dataGrid.Width-74),($dataGrid.Height+70))
$bulkUpdateBtn.Text = "Bulk Update"
$bulkUpdateBtn.Add_Click({
# TO DO
})
$mainForm.Controls.Add($bulkUpdateBtn)
$mainForm.Add_Shown({ $mainForm.Activate() })
$mainForm.ShowDialog()
Sources
This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.
Source: Stack Overflow
Solution | Source |
---|---|
Solution 1 |