$paramList =
@{
"Params1" = @{ customVmName = $($Global:InputVMName.Text) ; userImageStorageAccountName = "Image Storage Name" ; adminUsername = "vmusername" ; adminPassword = "vmpassword" ; osDiskVhdUri = $Global:VhdUri ; dnsLabelPrefix = $Global:InputVMName.Text ; osType = "Windows" ; vmSize = "Standard_D2" ; newOrExistingVnet = "existing" ; newOrExistingVnetName = "VMVPNName" ; newOrExistingSubnetName = "VMSubnet" ; newOrExistingVnetRG = "VNETResourceGroupName"}
}
foreach ($keys in $paramList.Keys) {
$paramvalues = $paramList.$keys
New-AzureRmResourceGroupDeployment -ResourceGroupName "RGName" -TemplateFile "$Global:Outpath\DeployAzr$Global:RNo.json" -TemplateParameterObject $paramValues
}