I'm getting a Null Reference Exception at the line ext = cmbFiletype.selecteditem.tostring(); but I can't work out why because it should only try this when cmbfiletype.selecteditem isn't null.
Here's the code:
using System;
using System.IO;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;
namespace Drawings_Manager
{
/// <summary>
/// Interaction logic for Find.xaml
/// </summary>
public partial class Find : Window
{
string productpath;
string path;
string filepath;
string bom;
string ext;
public Find()
{
InitializeComponent();
}
private void Find1_Initialized(object sender, EventArgs e)
{
string categorypath = "\\\\10.61.31.167\\Solidworks\\";
foreach (string dir in System.IO.Directory.GetDirectories(categorypath))
{
int pathlength = dir.IndexOf("-");
if (new DirectoryInfo(dir).Name.StartsWith("0"))
{
cmbCategory.Items.Add(dir.Remove(0,categorypath.Length));
}
else if (new DirectoryInfo(dir).Name.StartsWith("1"))
{
cmbCategory.Items.Add(dir.Remove(0,categorypath.Length));
}
else if (new DirectoryInfo(dir).Name.StartsWith("2"))
{
cmbCategory.Items.Add(dir.Remove(0,categorypath.Length));
}
else if (new DirectoryInfo(dir).Name.StartsWith("3"))
{
cmbCategory.Items.Add(dir.Remove(0,categorypath.Length));
}
else if (new DirectoryInfo(dir).Name.StartsWith("4"))
{
cmbCategory.Items.Add(dir.Remove(0,categorypath.Length));
}
else if (new DirectoryInfo(dir).Name.StartsWith("5"))
{
cmbCategory.Items.Add(dir.Remove(0,categorypath.Length));
}
else if (new DirectoryInfo(dir).Name.StartsWith("6"))
{
cmbCategory.Items.Add(dir.Remove(0,categorypath.Length));
}
else if (new DirectoryInfo(dir).Name.StartsWith("7"))
{
cmbCategory.Items.Add(dir.Remove(0,categorypath.Length));
}
else if (new DirectoryInfo(dir).Name.StartsWith("8"))
{
cmbCategory.Items.Add(dir.Remove(0,categorypath.Length));
}
else if (new DirectoryInfo(dir).Name.StartsWith("9"))
{
cmbCategory.Items.Add(dir.Remove(0,categorypath.Length));
}
}
}
private void cmbCategory_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
cmbProduct.Items.Clear();
cmbFileType.Items.Clear();
lstFile.Items.Clear();
lstPath.Items.Clear();
productpath = "";
path = "";
filepath = "";
ext = "";
txtBOM.Document.Blocks.Clear();
btnOpen.IsEnabled = false;
productpath = "\\\\10.61.31.167\\Solidworks\\" + cmbCategory.SelectedItem;
foreach (string dir in System.IO.Directory.GetDirectories(productpath))
{
int pathlength2 = dir.IndexOf("-");
if (new DirectoryInfo(dir).Name.StartsWith("0"))
{
cmbProduct.Items.Add(dir.Remove(0, productpath.Length + 1));
}
else if (new DirectoryInfo(dir).Name.StartsWith("1"))
{
cmbProduct.Items.Add(dir.Remove(0, productpath.Length + 1));
}
else if (new DirectoryInfo(dir).Name.StartsWith("2"))
{
cmbProduct.Items.Add(dir.Remove(0, productpath.Length + 1));
}
else if (new DirectoryInfo(dir).Name.StartsWith("3"))
{
cmbProduct.Items.Add(dir.Remove(0, productpath.Length + 1));
}
else if (new DirectoryInfo(dir).Name.StartsWith("4"))
{
cmbProduct.Items.Add(dir.Remove(0, productpath.Length + 1));
}
else if (new DirectoryInfo(dir).Name.StartsWith("5"))
{
cmbProduct.Items.Add(dir.Remove(0, productpath.Length + 1));
}
else if (new DirectoryInfo(dir).Name.StartsWith("6"))
{
cmbProduct.Items.Add(dir.Remove(0, productpath.Length + 1));
}
else if (new DirectoryInfo(dir).Name.StartsWith("7"))
{
cmbProduct.Items.Add(dir.Remove(0, productpath.Length + 1));
}
else if (new DirectoryInfo(dir).Name.StartsWith("8"))
{
cmbProduct.Items.Add(dir.Remove(0, productpath.Length + 1));
}
else if (new DirectoryInfo(dir).Name.StartsWith("9"))
{
cmbProduct.Items.Add(dir.Remove(0, productpath.Length + 1));
}
}
}
private void cmbProduct_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
cmbFileType.Items.Clear();
lstFile.Items.Clear();
lstPath.Items.Clear();
path = "";
filepath = "";
ext = "";
txtBOM.Document.Blocks.Clear();
btnOpen.IsEnabled = false;
cmbFileType.Items.Add("SLDASM");
cmbFileType.Items.Add("SLDPRT");
cmbFileType.Items.Add("SLDDRW");
cmbFileType.Items.Add("PDF");
cmbFileType.Items.Add("DXF");
cmbFileType.Items.Add("JPG");
cmbFileType.Items.Add("AVI");
txtBOM.Document.Blocks.Clear();
if (File.Exists("\\\\10.61.31.167\\Solidworks\\" + cmbCategory.SelectedItem + "\\"+ cmbProduct.SelectedItem + "\\" + "bom.txt"))
{
string bom = File.ReadAllText("\\\\10.61.31.167\\Solidworks\\" + cmbCategory.SelectedItem + "\\" + cmbProduct.SelectedItem + "\\" + "bom.txt");
txtBOM.AppendText(bom);
}
}
private void cmbFileType_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
lstFile.Items.Clear();
lstPath.Items.Clear();
path = "";
filepath = "";
ext = "";
btnOpen.IsEnabled = false;
if (cmbCategory.SelectedItem != "")
{
if (cmbFileType.SelectedItem != "")
{
filepath = "\\\\10.61.31.167\\Solidworks\\" + cmbCategory.SelectedItem + "\\" + cmbProduct.SelectedItem;
ext = cmbFileType.SelectedItem.ToString();
foreach (string file in System.IO.Directory.GetFiles(filepath, "*." + cmbFileType.SelectedItem, SearchOption.AllDirectories))
{
int remove = file.LastIndexOf("\\");
lstPath.Items.Add(file);
lstFile.Items.Add(file.Remove(0, remove + 1));
}
}
}
}
private void btnOpen_Click(object sender, RoutedEventArgs e)
{
System.IO.FileInfo fileInfo = new System.IO.FileInfo(path);
if (fileInfo.IsReadOnly == false)
fileInfo.IsReadOnly = true;
System.Diagnostics.Process.Start(@path);
}
private void lstFile_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
path = "";
if (lstFile.SelectedItem != "")
{
int selection = lstFile.SelectedIndex;
lstPath.SelectedIndex = selection;
path = lstPath.SelectedItem.ToString();
btnOpen.IsEnabled = true;
}
}
}
}
Do you have any ideas of why this is happening?
Thanks in advance.
