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Data Grid

Data grid component for Universal Dashboard.
The UDDataGrid component is an advanced version of the table that is useful for displaying large amounts of data. It supports many of the same features as the table but also provides complex filtering, row virtualization, multi-column sort and more.

Simple Data Grid

Data grids load their data via the -LoadRows event handler. You will need to return a hashtable that contains the row data and the total number of rows.
Columns are defined using hashtables.
Prior to version 3.3., column field names must be in camel case. For example, the property Name would need to be name while the property FirstName would need to be firstName.
New-UDDataGrid -LoadRows {
$Data = @(
@{ Name = 'Adam'; Number = Get-Random}
@{ Name = 'Tom'; Number = Get-Random}
@{ Name = 'Sarah'; Number = Get-Random}
)
@{
rows = $Data
rowCount = $Data.Length
}
} -Columns @(
@{ field = "name"}
@{ field = "number"}
) -AutoHeight

Columns

Columns are customizable using hashtables. You can find the supported properties below.
Property
Description
Type\Value
Align
How to align the data within the column.
Left, Center, Right
CellClassName
A CSS class to apply to cells in this column
string
ColSpan
The number of columns this column should span.
Integer
Description
A tooltip description of the column
string
DisableColumnMenu
Disable the column menu for this column
boolean
DisableExport
Disable exporting of the data in this column
boolean
Editable
Whether or not this column can be edited
boolean
Field
The field (property) to use when displaying the value in the column.
String
Filterable
Whether this column can be used in filters.
boolean
HeaderAlign
How to align header text.
left, center, right
HeaderName
The title to display in the header.
String
Hide
Whether to hide the column
boolean
Hideable
Whether a column can be hidden by the user.
boolean
HideSortIcon
Whether to hide the sort icon for the column
boolean
MaxWidth
The maximum width of the column
integer
MinWidth
The minimum width of the column
integer
Pinnable
Whether the column can be pinned.
boolean
Render
A script block to render components in the column
ScriptBlock
Resizable
Whether the column can be resized
boolean
Sortable
Whether the column can be sorted.
boolean
Type
The type of data within the column
string, number, date, dateTime, boolean, actions
Width
How wide the column should be in pixels.
Integer

Rendering Custom Columns

You can render custom components in columns by specifying render within the column hashtable. You can access the current row's data by using the $EventData or $Row variable
In this example, the number is shown in the name column with a New-UDTypography component.
New-UDDataGrid -LoadRows {
$Rows = 1..100 | % {
@{ Name = 'Adam'; Number = Get-Random}
}
@{
rows = $Rows
rowCount = $Rows.Length
}
} -Columns @(
@{ field = "name"; render = { New-UDTypography $EventData.number }}
@{ field = "number"}
) -AutoHeight

LoadRows

The -LoadRows parameter is used to return data for the data grid. Table state will be provided to the event handler as $EventData. You will find the following properties within the $EventData object.
Property
Description
Type
Filter
A filter object that you can use to construct filters against your data.
Hashtable
Page
The current page. Starts at 0.
Integer
PageSize
The number of records in a page.
Integer
Sort
The sort options for the table
Hashtable

Paging

To implement paging, you can access the page and pageSize properties of the $EventData variable.
New-UDDataGrid -LoadRows {
$Rows = 1..100 | % {
@{ Name = 'Adam'; Number = Get-Random}
}
@{
rows = $Rows | Select-Object -First $EventData.pageSize -Skip ($EventData.page * $EventData.pageSize)
rowCount = $Rows.Length
}
} -Columns @(
@{ field = "name"; }
@{ field = "number"}
) -AutoHeight -Pagination

Filtering

The filter hashtable is included in the $EventData for the -LoadRows event handler when a filter is defined. The hashtable has a structure as follows.
@{
items = @(
@{
columnField = "Name"
overatorValue = "contains"
value = "test"
}
)
linkOperator = "and"
}

Items

The items property contains an array of columns, operators and values. You can use these to filter your data.
Property
Description
Type
ColumnField
The name of the field to filter
String
OperatorValue
The type of operator to use when filtering the data.
String
Value
The value used to filter
Object

LinkOperator

The link operator field is used to specify the link between the filters. This can be and or or.

Sorting

The $EventData object will contain a Sort property when the user sorts the data grid. It contains properties for each column that is sorted. The properties will start as 0 and increment as more columns are sorted.
For example, you can access the first sorted column as follows.
$EventData.Sort.'0'.field
You will also receive the sort direction for each column.
Property
Description
Type
Field
The field to sort.
String
Sort
The direction to sort the field.
asc, desc

Detailed Content

You can use the -LoadDetailedContent event handler to display additional information about the row you are expanding. Information about the current row is available in $EventData.row.
New-UDDataGrid -LoadRows {
$Data = @(
@{ Name = 'Adam'; Number = Get-Random }
@{ Name = 'Tom'; Number = Get-Random }
@{ Name = 'Sarah'; Number = Get-Random }
)
@{
rows = $Data
rowCount = $Data.Length
}
} -Columns @(
@{ field = "Name" }
@{ field = "number" }
) -AutoHeight -LoadDetailContent {
Show-UDToast $Body
New-UDAlert -Text $EventData.row.Name
}

Editing

Tables provide editor support by specifying the -OnEdit event handler. The new row data will be provided as $EventData. You can chose to return updated row information (for example, adjusting something the user has entered) and return it from the event handler. If you do not return anything, the row will reflect what the user entered.
The $EventData has the following format.
@{
newRow = @{}
oldRow = @{}
}
Ensure that you provide the editable property to each column you wish for the user to edit.
New-UDDataGrid -LoadRows {
$Data = @(
@{ Name = 'Adam'; number = Get-Random }
@{ Name = 'Tom'; number = Get-Random }
@{ Name = 'Sarah'; number = Get-Random }
)
@{
rows = $Data
rowCount = $Data.Length
}
} -Columns @(
@{ field = "Name"; editable = $true }
@{ field = "number" ; editable = $true }
) -AutoHeight -OnEdit {
Show-UDToast "Editing $Body"
}

Custom Export

To override the default export functionality, use the -OnExport event handler. $EventData will be an array of rows with their values. You should use Out-UDDataGridExport to return the data from -OnExport.
New-UDDataGrid -LoadRows {
$Data = @(
@{ Name = 'Adam'; Number = Get-Random}
@{ Name = 'Tom'; Number = Get-Random}
@{ Name = 'Sarah'; Number = Get-Random}
)
@{
rows = $Data
rowCount = $Data.Length
}
} -Columns @(
@{ field = "name"}
@{ field = "number"}
) -AutoHeight -OnExport {
$Data = $EventData | Select-Object -Expand name
Out-UDDataGridExport -Data $Data -FileName 'export.txt' | Out-String
}

Example: Static Data

In this example, we generate an array of 10,000 records. We will create a new function, Out-UDDataGridData to manage the paging, sorting and filtering.
function Out-UDDataGridData {
param(
[Parameter(Mandatory)]
$Context,
[Parameter(Mandatory, ValueFromPipeline)]
[object]$Data,
[Parameter()]
[int]$TotalRows = -1
)
Begin {
$Items = [System.Collections.ArrayList]::new()
}
Process {
$Items.Add($Data) | Out-Null
}
End {
$simpleFilter = @()
if($null -ne $Context.Filter.Items -and $Context.Filter.Items.Count -gt 0) {
$linkOperator = $Context.Filter.linkOperator
$count = 1
$filterTextArray = @()
foreach($filter in $Context.Filter.Items) {
$property = $Filter.columnField
$val = $filter.Value
switch ($filter.operatorValue) {
"contains" { $filterTextArray += "obj.$property -like ""*$val*""" }
"equals" { $filterTextArray += "obj.$property -eq ""*$val*""" }
"startsWith" { $filterTextArray += "obj.$property -like ""$val*""" }
"endsWith" { $filterTextArray += "obj.$property -like ""*$val""" }
"isAnyOf" { $filterTextArray += "obj.$property -in ""$val""" }
"notequals" {$filterTextArray += "obj.$property -ne ""$val""" }
"notcontains" { $filterTextArray += "obj.$property -notlike ""*$val*""" }
"isEmpty" { $filterTextArray += "obj.$property -eq null" }
"isNotEmpty" { $filterTextArray += "obj.$property -ne null" }
}
}
if ($linkOperator -eq 'and') {
[string]$filterTextLine = $filterTextArray -join " -and "
} else {
[string]$filterTextLine = $filterTextArray -join " -or "
}
$filterTextLine = $filterTextLine.Replace('obj','$_')
$filterTextLine = $filterTextLine.Replace('null','$null')
$filterScriptBlock = [Scriptblock]::Create($filterTextLine)
$Items = $Items | Where-Object -FilterScript $filterScriptBlock
}
if ($null -ne $Items) {
$TotalRows = $Items.Count
} else {
$TotalRows = 0
}
$Sort = $Context.Sort[0]
$Items = $Items | Sort-Object -Property $Sort.field -Descending:$($Sort.Sort -eq 'desc')
$Items = $Items | Select-Object -Skip ($Context.Page * $Context.pageSize) -First $Context.PageSize
@{
rows = [Array]$Items
rowCount = $TotalRows
}
}
}
New-UDDashboard -Title 'PowerShell Universal' -Content {
$Data = 1..10000 | % {
@{ Name = 'Adam'; Number = Get-Random }
}
New-UDDataGrid -LoadRows {
$Data | Out-UDDataGridData -Context $EventData
} -Columns @(
@{ field = "name"; render = {
New-UDButton -Icon (New-UDIcon -Icon User) -OnClick { Show-UDToast $EventData.Name } }
}
@{ field = "number" }
) -AutoHeight -Pagination
}

Example: SQL Data

In this example, we'll query the PowerShell Universal database with dbatools.
function Out-UDSQLDataGrid {
param(
[Parameter(Mandatory)]
$Context,
[Parameter(Mandatory)]
[string]$Table,
[Parameter(Mandatory)]
[string]$SqlInstance,
[Parameter(Mandatory)]
[string]$Database
)
End {
$simpleFilter = @()
if($null -ne $Context.Filter.Items -and $Context.Filter.Items.Count -gt 0) {
$linkOperator = $Context.Filter.linkOperator #The link operator is 'AND' or 'OR'. It will always be one or the other for all properties
foreach ($item in $Context.Filter.Items) {
$simpleFilter += [PSCustomObject]@{
Property = $item.columnField
Value = $item.Value
Operator = $item.operatorValue
}
}
}
if($null -ne $simpleFilter -and $simpleFilter.Count -gt 0) {
$count = 1
foreach($filter in $simpleFilter) {
if ($count -gt 1) {
$SqlFilter += " $($linkOperator) "
} else {
$SqlFilter += " WHERE "
}
switch ($filter.Operator) {
"contains" { $SqlFilter += " $($filter.Property) LIKE '%$($filter.Value)%' " }
"equals" { $SqlFilter += " $($filter.Property) = '$($filter.Value)' " }
"startsWith" { $SqlFilter += " $($filter.Property) LIKE '$($filter.Value)%' " }
"endsWith" { $SqlFilter += " $($filter.Property) LIKE '%$($filter.Value)' " }
"isAnyOf" {
$count = 1
foreach($val in $filter.Value){
if($count -gt 1) {
$list += ", '$val'"
} else {
$list += "'$val'"
}
$count += 1
}
$SqlFilter += " $($filter.Property) IN ($($list)) "
}
"isempty" { $SqlFilter += " TRIM ($($filter.Property)) IS NULL " }
"isnotempty" { $SqlFilter += " TRIM ($($filter.Property)) IS NOT NULL " }
"notequals" { $SqlFilter += " $($filter.Property) != '$($filter.Value)' " }
"notcontains" { $SqlFilter += " $($filter.Property) NOT LIKE '%$($filter.Value)%' " }
}
$count += 1
}
} else {
$SqlFilter = $null
}
$totalCount = (Invoke-DbaQuery -SqlInstance $SqlInstance -Database $Database -Query "SELECT COUNT(*) As Count FROM $Table $SqlFilter" -SqlParameters $SqlParameters).Count
$sort = $Context.Sort.'0'
if ($sort)
{
$sqlSort = "ORDER BY $($sort.field) $($sort.Sort) "
} else {
$sqlSort = "ORDER BY (SELECT NULL)"
}
$sqlPage = "OFFSET $($Context.Page * $Context.PageSize) ROWS FETCH NEXT $($Context.PageSize) ROWS ONLY;"
if($null -ne $SqlFilter) {
$Query = "SELECT * FROM $Table $sqlFilter $sqlSort $sqlPage"
} else {
$Query = "SELECT * FROM $Table $sqlSort $sqlPage"
}
$Rows = Invoke-DbaQuery -SqlInstance $SqlInstance -Database $Database -Query $Query -As PSObject -SqlParameters $SqlParameters
@{
rows = [Array]$Rows
rowCount = $TotalCount
}
}
}
New-UDDashboard -Title 'PowerShell Universal' -Content {
New-UDDataGrid -LoadRows {
Out-UDSqlDataGrid -Context $EventData -SqlInstance "(localdb)\MSSQLLocalDb" -Database "PSU" -Table "Job"
} -Columns @(
@{ field = "id"; }
@{ field = "startTime"; }
@{ field = "status"; render = {
if ($EventData.Status -eq 2) {
New-UDAlert -Severity 'Success' -Text 'Success'
}
if ($EventData.Status -eq 3) {
New-UDAlert -Severity 'Error' -Text 'Failed'
}
} }
) -AutoHeight -Pagination
}
Last modified 2mo ago
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