You dont need to take extra array for your purpose, you can do this just by adding each input value and then divide that total with total number of input items. double total = 0; double result; Console.Write(“For how many numbers you want to do the average calculation: “); int a = int.Parse(Console.ReadLine()); for (int … Read more
You mean something like this? XmlDocument xmlDoc = new XmlDocument(); XmlDocument xmlDoc2 = new XmlDocument(); xmlDoc.Load(xmlFile); xmlDoc2.Load(xmlFile2); XmlNode node = xmlDoc.SelectSingleNode(“Root/RuleDTO/RuleID”); XmlNode node2 = xmlDoc2.SelectSingleNode(“Root/RuleDTO[1]/RuleID”); XmlNode node3 = xmlDoc2.SelectSingleNode(“Root/RuleDTO[2]/RuleID”); if (node != null && node2 != null && node3 != null) node3.InnerText = node2.InnerText = node.InnerText; xmlDoc2.Save(xmlFile2); solved Replace xml node in c#
just set the unique value with the original value, (Assuming ProductID is unique) eg, INSERT INTO CART (ProductID, Quantity) VALUES (1, 100) ON DUPLICATE KEY UPDATE ProductID = ProductID; solved Update nothing on duplicate key exist [closed]
Use DateTime.ParseExact: public string dateBirthday(string date) { DateTime a = DateTime.ParseExact(date, “dd.MM.yyyy”, CultureInfo.InvariantCulture); //return a.ToString(“dd/MM/yyyy”); // original answer without culture return a.ToString(“dd/MM/yyyy”, CultureInfo.InvariantCulture); } EDIT: As Jon Skeet already said, the / is culture-dependent and we (you and me;)) did not specify a culture for the ToString() function, so the culture of the host environment … Read more
Question is absolutely not clair… like this? private static Dictionary<String, PointPairList> s_PointPairLists = new Dictionary<String, PointPairList>(); private static void BuildPointPairLists(Int32 limit) { for (Int32 i = 2; i < limit; ++i) { if ((tabl[i].x != null) && (tabl[i].y != null)) { Double[] x = { 0, tabl[i].y }; Double[] y = { tabl[i].x, 0 }; … Read more
Using this DateTime Extension: static class DateExtensions { public static IEnumerable<DateTime> GetRange(this DateTime source, int days) { for (var current = 0; current < days; ++current) { yield return source.AddDays(current); }; } public static DateTime NextDayOfWeek(this DateTime start, DayOfWeek dayOfWeek) { while (start.DayOfWeek != dayOfWeek) start = start.AddDays(-1); return start; } } In my Class … Read more
I cannot answer all of your questions, but I will take a shot at a few of them (Question 1) Basically your assessment sounds right. It could also be said that EF ‘abstracts away’ the SQL that is otherwise needed to persist data to a persistent (generally a disk drive) store. (Question 7) Yes. However, … Read more
You can try this one. var dictionary = new Dictionary<string, int>(); dictionary.Add(“pay_month”, 2); dictionary.Add(“pay_year”, 1); if (dt.Rows.Count > 0) { DataRow row = dt.Rows[0]; row[“Month”]=dictionary[“pay_month”]; row[“year”]=dictionary[“pay_year”]; } solved C#-How to update a first row in DataTable based on dictionary values [closed]
Solution without linq: int[] array1 = new int[] { 3, 5, 6, 9, 12, 14, 18, 20, 25, 28 }; int[] array2 = new int[] { 30, 32, 34, 36, 38, 40, 42, 44, 46, 48 }; int count1 = array1.Length; int count2 = array2.Length; int[] arrayResult = new int[count1 + count2]; int a = … Read more
Create singleton class so that instace can be created once and used across application public class Global { private static readonly Global instance = new Global(); public static Global Instance { get { return instance; } } Global() { } public string myproperty { get;set; } } Usage: Global.Instance.myproperty solved How to make global variables? … Read more
According to the documentation, it’s not returning a byte array but an Array. Just type ByteArray_to_Hex(problem) and let Visual Studio generate the method. Then you’ll see what type it returns. Perhaps you can call ByteArray_to_Hex((byte[])problem) to explicitly cast it. solved type of variable in Visual C#
Stride is usually reported in bytes, not pixels. Each pixel is 4 bytes (32 bits). This means that your offset or padding will be 0 (2048 bytes – 512*4 bytes). Each row of your bitmap will be 512 * 4 = 2018 bytes, and there will be 512 rows. This means that it is simply … Read more
Code string str = “VALVE,GATE,SH_NAME:VLV,GATE,VLV_NOM_SIZE:4-1/16IN”; string[] Rows = str.Split(‘,’); dataGridView1.Columns.Add(“Column1”, “Column1”); dataGridView1.Columns.Add(“Column2”, “Column2”); foreach (string AddRow in Rows) { string[] Row = AddRow.Split(‘:’); dataGridView1.Rows.Add(Row); } 2 solved How to Map my input data [closed]
Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index (mentioned code) [duplicate] solved Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index (mentioned code) [duplicate]
I ended up going with a slightly different solution. The solution to the “Could not find installable ISAM” exception was to use the following: string EXTENDED_PROPERTIES = @”Extended Properties=””Text;HDR=YES;FMT=FixedLength;”””; The key to the solution is the “(s) around the “Extended Properties” values. I was able to populate the DataTable with the contents of the file, … Read more