Develop Reference

Trim all but 2 characters after comma in for each in ASP.NET MVC Api call C#

In my for each loop, I am needing to trim the full name being returned in my stored procedure. I would need the "last name, first 2 characters of first name" but trim everything else.
foreach (var mrnRecord in mrnRecords)
{
var filtered = dt.AsEnumerable().Where(x => x.Field<string>("MRN").Contains(mrnRecord));
patient = new Patient();
orders = new List<Order>();
patient.MRN = filtered.First().Field<string>("MRN");
patient.CurrentLocation = filtered.First().Field<string>("CurrentLocation") + "<br />" + filtered.First().Field<string>("PatientName") + "<br />" + filtered.First().Field<string>("Isolation");
patient.PatientName = filtered.First().Field<string>("PatientName");
patient.PatientType = filtered.First().Field<string>("PatientType");
patient.VisitId = filtered.First().Field<string>("VisitID");

Assuming the name comes through as "First Middle Last", you could use
var myString = "Franklin Delano Roosevelt";
var stringArr = myString.Split(' ');
var lastFirstTwoInitials = stringArr[2] + ", " + stringArr[0].Substring(0, 2);
EDIT: Just saw your comment about format being "Last, First Middle"
var stringArr = patient.PatientName.Split(' ');
var lastFirstTwoInitials = stringArr[0] + " " + stringArr[1].Substring(0, 2);
or
var stringArr = patient.PatientName.Split(' ');
var lastFirstTwoInitials = patient.PatientName.Substring(0, stringArr[0].Length + 3);

ArgumentOutOfRangeException when I think my code should work

I'm working on a bit of code for school but I keep getting an ArgumentOutOfRangeException
With this code I'm trying to read some data from a .csv file and if it equals the name of the image I want it to remove it from the .csv file whilst keeping the structure intact.
public void checkPair(Image card1, Image card2)
{
this.Image1 = card1;
this.Image2 = card2;
if (Convert.ToString(card1.Source) == Convert.ToString(card2.Source) && (card1 != card2))
{
getPoint(card1, card2);
string path = #"Save1.csv";
var reader = new StreamReader(File.OpenRead(path));
var data = new List<List<string>>();
while (!reader.EndOfStream)
{
var line = reader.ReadLine();
var values = line.Split(';');
data.Add(new List<String> { values[0], values[1]
});
}
reader.Close();
string delimiter = ";";
for (int i = 1; i < 5; i++)
{
for (int x = 0; x < 4; x++)
{
if (data[i][x] == Convert.ToString(card1.Source))
{
data[i][x] = null;
}
}
}
File.WriteAllText(path, data[0][0] + delimiter + data[0][1] + Environment.NewLine + data[1][0] + delimiter + data[1][1] + delimiter + data[1][2] + delimiter + data[1][3] + Environment.NewLine + data[2][0] + delimiter + data[2][1] + delimiter + data[2][2] + delimiter + data[2][3] + Environment.NewLine + data[3][0] + delimiter + data[3][1] + delimiter + data[3][2] + delimiter + data[3][3] + Environment.NewLine + data[4][0] + delimiter + data[4][1] + delimiter + data[4][2] + delimiter + data[4][3] + Environment.NewLine + "ready");
I have no idea why I get this error and how to fix it

Initially, I'd change your last line from
File.WriteAllText(path, data[0][0] + delimiter + data[0][1] ....
to something like
var obj1 = data[0][0];
var obj2 = data[0][1];
File.WriteAllText(path, obj1 + delimiter + obj2 .... etc)
If you over inline functions or array accessing, when you get an exception the stack trace won't be that helpful. At least you'll have an idea of the statement that caused the issue.
This technique can prove to be very helpful, if you are looking at an in exception in the logs, after the fact.

Pass multiple data from one function to label in C#

I have a function that retrieves multiple lines of data and I want to display them in a label. My function is as shown below.
public static string GetItemByQuery(IAmazonSimpleDB simpleDBClient, string domainName)
{
SelectResponse response = simpleDBClient.Select(new SelectRequest()
{
SelectExpression = "Select * from " + domainName
});
String res = domainName + " has: ";
foreach (Item item in response.Items)
{
res = item.Name + ": ";
foreach (Amazon.SimpleDB.Model.Attribute attribute in item.Attributes)
{
res += "{" + attribute.Name + ", " + attribute.Value + "}, ";
}
res = res.Remove(res.Length - 2);
}
return res;
}
So far I can only return a string which is the last line of the retrieved data. How can I retrieve all the records? I tries arraylist, but it seems that the AWS web application doesn't allow me to use arraylist. Can anyone please help me to solve this??

Return it as as a Enumberable,
List<String> Results ;
Your method would be
public static List<String> GetItemByQuery(IAmazonSimpleDB simpleDBClient, string domainName)
{
List<String> Results = null;
SelectResponse response = simpleDBClient.Select(new SelectRequest()
{
SelectExpression = "Select * from " + domainName
});
String res = domainName + " has: ";
foreach (Item item in response.Items)
{
Results = new List<String>();
res = item.Name + ": ";
foreach (Amazon.SimpleDB.Model.Attribute attribute in item.Attributes)
{
res += "{" + attribute.Name + ", " + attribute.Value + "}, ";
}
res = res.Remove(res.Length - 2);
Results.Add(res);
}
return Results;
}

Error , invalid Regular expression in c# console application

private static void PizzaHutPizzaScrapper()
{
try
{
MatchCollection mclName;
MatchCollection mclPrice;
WebClient webClient = new WebClient();
string strUrl = "http://www.pizzahut.com.pk/pizzas.html";
byte[] reqHTML;
reqHTML = webClient.DownloadData(strUrl);
UTF8Encoding objUTF8 = new UTF8Encoding();
string pageContent = objUTF8.GetString(reqHTML);
Regex r = new Regex("(<p class=\"MenuDescHead\">[A-Za-z\\s*]+[0-9]*)");
// Regex r1 = new Regex("(<p class=\"MenuDescPrice\">[A-Za-z.\\s?]+[0-9]*[A-Za-z\\s?]*[0-9]*[A-Za-z.\\s?]*)");
Regex r1 = new Regex("(<p class=\"MenuDescPrice\">[0-9]*)");
mclName = r.Matches(pageContent);
mclPrice = r1.Matches(pageContent);
StringBuilder strBuilder = new StringBuilder();
string name = "";
string price = "";
List<string> menuPriceList = new List<string>();
foreach (Match ml in mclPrice)
{
price = ml.Value.Remove(0, ml.Value.IndexOf(">") + 1).Trim();
if (price != "")
{
menuPriceList.Add(ml.Value);
}
}
int j = 0;
for (int i = 0; i < mclName.Count; i++)
{
name = mclName[i].Value.Remove(0, mclName[i].Value.IndexOf(">") + 1);
if (i == 0 || i == 4)
{
price = menuPriceList[j].Remove(0, menuPriceList[j].IndexOf(">") + 1);
strBuilder.Append(name.Trim() + ", " + price.Trim() + " , PizzaHut\r\n");
j++;
}
price = menuPriceList[j].Remove(0, menuPriceList[j].IndexOf(">") + 1);
strBuilder.Append(name.Trim() + ", " + price.Trim() + " ,PizzaHut\r\n");
j++;
}`
i want to select numeric values only...but it fetch alphabets as well..
i want to select only numeric values from HTML and using [0-9]* as regular expression, but its not working and show alphabets as well. i want only numeric values, what is correct regular expression? any idea??

Here you go, what you're looking for are Grouping Constructs:
MatchCollection mclName;
MatchCollection mclPrice;
WebClient webClient = new WebClient();
string strUrl = "http://www.pizzahut.com.pk/pizzas.html";
byte[] reqHTML;
reqHTML = webClient.DownloadData(strUrl);
UTF8Encoding objUTF8 = new UTF8Encoding();
string pageContent = objUTF8.GetString(reqHTML);
Regex nameRegex = new Regex("<p class=\"MenuDescHead\">([A-Za-z\\s]+[0-9]*)");
Regex priceRegex = new Regex("<p class=\"MenuDescPrice\">[^0-9]*([0-9]*)");
mclName = nameRegex.Matches(pageContent);
mclPrice = priceRegex.Matches(pageContent);
StringBuilder strBuilder = new StringBuilder();
List<string> menuPriceList = new List<string>();
foreach (Match ml in mclPrice)
{
string price = ml.Groups[1].ToString();
if (price != "" && price != "0")
{
menuPriceList.Add(price);
}
}
int j = 0;
for (int i = 0; i < mclName.Count; i++)
{
string price;
string name = mclName[i].Groups[1].ToString();
if (i == 0 || i == 4)
{
price = menuPriceList[j];
strBuilder.Append(name.Trim() + ", " + price.Trim() + " , PizzaHut\r\n");
j++;
}
price = menuPriceList[j];
strBuilder.Append(name.Trim() + ", " + price.Trim() + " ,PizzaHut\r\n");
j++;
}
Console.WriteLine(strBuilder.ToString());

Can only display array by iterating through a for loop

Hello I am trying to make a C# program that downloads files but I am having trouble with the array.
I have it split up the text for downloading and put it into a 2 level jagged array (string[][]).
Now I split up the rows up text by the | char so each line will be formatted like so:
{filename}|{filedescription}|{filehttppath}|{previewimagepath}|{length}|{source}
when I use short test text to put it into a text box it displays fine in the text box.
IE: a string like test|test|test|test|test|test
but if I put in a real string that I would actually be using for the program to DL files the only way I get the string to display is to iterate through it with a for or foreach loop. If I try to access the data with the index I get an index missing error. (IE array[0])
So this is the code that gets the array to display:
public Form2(string[][] textList, string path)
{
InitializeComponent();
textBox1.Text = textBox1.Text + path + Environment.NewLine;
WebClient downloader = new WebClient();
foreach (string[] i in textList)
{
for(int j=0;j<i.Length;j++)
{
textBox1.Text = textBox1.Text + i[j] + Environment.NewLine + #"\\newline" + Environment.NewLine;
}
}
}
And then this is the code that gives an index missing error:
public Form2(string[][] textList, string path)
{
InitializeComponent();
textBox1.Text = textBox1.Text + path + Environment.NewLine;
WebClient downloader = new WebClient();
foreach (string[] i in textList)
{
textBox1.Text = textBox1.Text + i[0] + Environment.NewLine;
textBox1.Text = textBox1.Text + i[1] + Environment.NewLine;
textBox1.Text = textBox1.Text + i[2] + Environment.NewLine;
textBox1.Text = textBox1.Text + i[3] + Environment.NewLine;
textBox1.Text = textBox1.Text + i[4] + Environment.NewLine;
textBox1.Text = textBox1.Text + i[5] + Environment.NewLine;
}
}
Any help is this is apreciated I don't see why I can access they data through a for loop but not directly it just doesn't make any sense to me.
Also, here is the code that generates the array:
public String[][] finalList(string[] FileList)
{
String[][] FinalArray = new String[FileList.Length][];
for (int i = 0; i<FinalArray.Length;i++)
{
string[] fileStuff = FileList[i].Split(new char[] {'|'});
FinalArray[i] = fileStuff;
}
return FinalArray;
}

In your first example you are using the actual length of each inner array to do the concatenation. In your second example you are hard coded to the same length yet you said in the intro it was a jagged array.
Can you show what your input text looks like?
you are not doing the same concatenation in first and second example so the resulting stings are very different.
first = "\r\n Crazy Video\r\n\\\\newline\r\nThis Video is absolutly crazy!\r\n\\\\newline\r\nhtt://fakeurl.fake/vidfolder/video.flv\r\n\\\\newline\r\nhtt://fakeurl.fake/imgfolder/img.j‌​pg\r\n\\\\newline\r\n300\r\n\\\\newline\r\nhtt://fakeurl.fake \r\n\\\\newline\r\n"
second = "\r\n Crazy Video\r\nThis Video is absolutly crazy!\r\nhtt://fakeurl.fake/vidfolder/video.flv\r\nhtt://fakeurl.fake/imgfolder/img.j‌​pg\r\n300\r\nhtt://fakeurl.fake \r\n"
using System;
using NUnit.Framework;
namespace ClassLibrary5
{
public class Class1
{
[Test]
public void test()
{
var temp = new[]
{
" Crazy Video|This Video is absolutly crazy!|htt://fakeurl.fake/vidfolder/video.flv|htt://fakeurl.fake/imgfolder/img.j‌​pg|300|htt://fakeurl.fake "
};
var final = finalList(temp);
var first = Form1(final, "path");
var second = Form2(final, "path");
Assert.IsTrue(first.CompareTo(second) == 0);
}
public string Form1(string[][] textList, string path)
{
string textString = path + Environment.NewLine;
foreach (string[] i in textList)
{
for (int j = 0; j < i.Length; j++)
{
textString = textString + i[j] + Environment.NewLine + #"\\newline" + Environment.NewLine;
}
}
return textString;
}
public string Form2(string[][] textList, string path)
{
string textString = path + Environment.NewLine;
foreach (string[] i in textList)
{
textString = textString + i[0] + Environment.NewLine;
textString = textString + i[1] + Environment.NewLine;
textString = textString + i[2] + Environment.NewLine;
textString = textString + i[3] + Environment.NewLine;
textString = textString + i[4] + Environment.NewLine;
textString = textString + i[5] + Environment.NewLine;
}
return textString;
}
public String[][] finalList(string[] FileList)
{
String[][] FinalArray = new String[FileList.Length][];
for (int i = 0; i < FinalArray.Length; i++)
{
string[] fileStuff = FileList[i].Split(new char[] {'|'});
FinalArray[i] = fileStuff;
}
return FinalArray;
}
}
}

Are you sure each String[] in string[][] textList has 6 elements?

Try to replace:
for(int j=0;j<i.Length;j++)
{
textBox1.Text = textBox1.Text + i[j] + Environment.NewLine + #"\\newline" + Environment.NewLine;
}
with:
for(int j=0;j<6;j++)
{
textBox1.Text = textBox1.Text + i[j] + Environment.NewLine + #"\\newline" + Environment.NewLine;
}
And see if you get the same result. Your middle one has different logic than your first one. To troubleshoot, first make the logic the same, and then continue troubleshooting from there.