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Dictionary Checking

I have a list and I am getting each item in the list in a foreach loop.

    private void saveButton_Click(object sender, EventArgs e)
    {
            if (saveFile1.ShowDialog() == DialogResult.OK)
            {
                StreamWriter sw = new StreamWriter(saveFile1.FileName);
                int i = 1;

                Dictionary<string, int> dictionary = new Dictionary<string, int>();

                foreach (var line in theFinalList)
                {
                    //compareList.Add(line.PartNumber[]);
                    if (!line.Name.Contains("FID") || !line.PartNumber.Contains("FIDUCIAL") ||
                        !line.PartNumber.Contains("EXCLUDE开发者_如何学PythonS") || !line.PartNumber.Contains("excludes"))
                    {
                        //This doesn't work obviously.. :/
                        sw.WriteLine("( {0} 0 1 1 0 0 0 0 \"{1}\" \"{2}\" \"\" {3} 0 0 0 0 0 )",
                            i, line.PartDescription, line.PartNumber, partNumberOccurrences);
                    }

                    i++;
                }
            }

And I am having trouble using a dictionary to store each part of the line in a dictionary and to increment the the itemCounter whenever it is found as duplicate. I am trying to do something like this, but I cannot figure out the logic for it.

And I would like to only output the partNumber 1 time and also the amount of times it occurred as well as a corresponding value on the same line as the partNumber.

The output would look like this:

( 1 0 1 1 0 0 0 0 "2125R_1.0" "136380" "" 18 0 0 0 0 0 )
( 2 0 1 1 0 0 0 0 "2125R_1.0" "128587" "" 41 0 0 0 0 0 )
( 3 0 1 1 0 0 0 0 "2125R_1.0" "138409" "" 11 0 0 0 0 0 )
( 4 0 1 1 0 0 0 0 "2125R_1.0" "110984" "" 8 0 0 0 0 0 )
( 5 0 1 1 0 0 0 0 "3216R_1.3" "114441" "" 6 0 0 0 0 0 )
( 6 0 1 1 0 0 0 0 "3216C_1.3" "2006722" "" 16 0 0 0 0 0 )
( 7 0 1 1 0 0 0 0 "3216C_1.3" "135732" "" 6 0 0 0 0 0 )

Can anyone help me with creating a dictionary to do this?


You could also create a new class for your items and store a List of these items and then use Linq to group the results - you may or may not find it more logical:

public class MyItem
{
    public string Name { get; set; }
    public string PartNumber { get; set; } // I did this as string rather than int
    public string Description { get; set; }
}

public List<MyItem> items = new List<MyItem>();

Then, you seem to want to be grouping the items (this example uses Linq and assumes you have populated your items List):

IEnumerable<IGrouping<int, MyItem>> grouped = items
    .GroupBy(t => Convert.ToInt32(t.PartNumber))
    .OrderBy(t => t.Key);

foreach(var item in grouped)
{
    Console.WriteLine("Number of Occurances:" + item.Key);
    Console.WriteLine("Name: " + item.ElementAt(0).Name);
    Console.WriteLine("Description: " + item.ElementAt(0).Description);
    Console.WriteLine("\n --------------------------------- \n");
}

This example assumes that everything with the same part number will have the same name and description.


I think you want something like this:

int value;
if (!dictionary.TryGetValue(line.PartNumber, out value))
{
    value = 0;
}
dictionary[line.PartNumber] = value + 1;


You could also use anonymous types along with linq to give you a neater solution. Here's an example assuming that your lines are tab separated.

        var lines = new[]
                        {
                            "R80\t123456\tsomething here1",
                            "R81\t123456\tsomething here1",
                            "R81\t123456\tsomething here1",
                        };

        var items = lines.Select(i => i.Split('\t')).Select(i => new {Name = i[0], PartNumber = i[1], Description = i[2]});

        var outLines =
            items.GroupBy(i => i.Name).Select(
                i =>
                string.Format("{0}\t{1}\t{2}\t{3}", i.First().Name, i.First().PartNumber, i.First().Description,
                              i.Count()));

        foreach (var outLine in outLines)
        {
            Console.WriteLine(outLine);
        }

        Console.Read();


foreach (string word in lineList)
{
    if (dictionary.ContainsKey(word)
        dictionary[word]++;
    else
        dictionary[word] = 1;
}
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