C# foreach how to get index

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WebJul 21, 2024 · You can initialize a local variable outside a foreach loop and increment it until last row. This will hold current row. e.g int i=0; foreach (DataRow row in dt.Rows) { xlWorkSheet.Cells [i, 1] = row ["Id"].ToString (); i++; } Share Improve this answer Follow answered Jul 21, 2024 at 8:32 Harkirat singh 559 6 19 My pleasure :) Happy coding

Get current index of a foreach loop in C# Techie Delight

WebHow to get the assembly file version in C#; More Articles; Foreach loop, determine which is the last iteration of the loop in C#; ... If it is, the corresponding item in the ItemsControl is … WebNov 18, 2024 · Just write an extension method like this: using System.Linq; ... public static IEnumerable< (T item, int index)> WithIndex (this IEnumerable source) { return … how many people are leaving the church

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WebMar 18, 2010 · Just commenting for future searchers that C#6 will allow myCars.Select((car, index) => new {car, index}).FirstOrDefault(myCondition)?.index; to return a null index when handling cases where there are no results after myCondition is applied. WebJun 11, 2024 · EDIT: If you're only using a List<> and you only need the index, then List.FindIndex is indeed the best approach. I'll leave this answer here for those who need anything different (e.g. on top of any IEnumerable<>).. Use the overload of Select which takes an index in the predicate, so you transform your list into an (index, value) pair:. … WebDec 22, 2024 · foreach (Cell c in r.Elements ().Select ( (value, i) => new { i, value })) But obviously it doest work. My current code : y=0 foreach (Row r in sheetData.Elements ()) { dataGridView1.Rows.Add (); cx = 0; foreach (Cell c in r.Elements ()) { dataGridView1.Rows [y].Cells [cx].Value = value; cx++; } y++; } how can i change the background color

Get the Column Index of a Cell in Excel using OpenXML C#

How to use an index with C#’s foreach loop? · Kodify

Web인덱스 변수를 사용하여 foreach 루프의 현재 반복에 대한 인덱스를 얻는 C# 프로그램 이것은 foreach 루프의 반복 인덱스를 찾는 전통적이고 가장 간단한 방법입니다. 이 방법에서는 변수를 사용하고 0으로 초기화 한 다음 각 반복마다 값을 증가시킵니다. 이것이 가장 기본적인 방법입니다. 이 메소드를 구현하려면 C#에 대한 기본 지식 만 있으면됩니다. 예제 코드: WebJan 2, 2009 · Here's some pseudocode that looks like C#, may compile and may actually work: var items = from x in myListBox.Items where otherListOfMyObjects.Any (y => y == x /*SEE NOTE*/) select x; foreach (item i in items) myListBox.SelectedItems.Add (i); Obviously, that won't work as y==x will always return false (that's why your current … how many people are killed with knives a yearWeb5 hours ago · Viewed 3 times. 0. I installed Autoitx library for my C# project and tried to get handle of an image, but the only way i found to do it is by the following method which is using the autoit GUI Extender Library: var Image = AutoItX.GUIImageGetHandle ("C:\\image.png"); The problem is the fuct that i can't find this library anywhere, so i'm ... how many people are kind

"WebJul 10, 2024 · There are a couple of ways to deal with this, either use a foreach loop instead if that's suitable (which is what most of the Blazor documentation examples do), or declare a local variable inside the loop: @for (int i=0;i< ListData.DataView.Table.Rows.Count; i++) { int local_i=i; // Now use local_i instead of i in the code inside the for loop } " - C# foreach how to get index

C# foreach how to get index

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WebSep 3, 2008 · foreach (var (value, index) in collection.Select((v, i)=>(v, i))) { Console.WriteLine(value + " is at index " + index); } You can use the regular foreach … WebThen the solution is to use a while loop: using var enumerator = collection.GetEnumerator (); var last = !enumerator.MoveNext (); T current; while (!last) { current = enumerator.Current; //process item last = !enumerator.MoveNext (); if (last) { //additional processing for last item } }

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Web2 hours ago · Modified today. Viewed 5 times. 0. How do I get the Dev Tunnel URL from the HttpContext? I usually got the host address like this: var host = HttpContext.Request.Host; But when I am using a Dev Tunnel I was expecting to get that funky URL they provide you, but I still get localhost. Please help? WebJul 17, 2016 · If you need the index of the item you're working with then using a foreach loop is the wrong method of iterating over the collection. Change the way you're looping so you have the index: for (int i = 0; i < dt.Rows.Count; i++) { // your index is in i var row = dt.Rows [i]; } Share Improve this answer Follow answered Dec 21, 2010 at 19:04

WebSep 15, 2024 · The foreach statement provides a simple, clean way to iterate through the elements of an array. For single-dimensional arrays, the foreach statement processes … WebJan 28, 2014 · foreach (ListItem li in chkUnitCategory.Items) { } now i need to perform a task in which when checkbox of index 0 is selected all the other checkbox in list must be selected and vice versa. so how can i perform this task using index of check box list. c# asp.net foreach checkboxlist Share Improve this question Follow asked Jan 28, 2014 at …

WebYou'll also need to modify the code to perform the required processing based on the column index. More C# Questions. Multitenant Identity Server 4; Unexpected non-equality after assignment in C#; Quickest way to compare two generic lists for differences in C#; Non-blocking loading and copying of large Texture2D's in C# for Unity WebNov 1, 2024 · A Computer Science portal for geeks. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions.

WebApr 8, 2013 · foreach (var pair in y.Select ( (x,i) => new {Index = i,Value=x})) { Console.WriteLine (pair.Index + ": " + pair.Value); } (the counter approach in the question is a lot simpler and more effecient, but the above should map better to a few scenarios like Parallel.ForEach). Share Improve this answer Follow edited Jul 28, 2009 at 7:58

WebOct 8, 2009 · The simplest way is to use a for loop for ( int i = 0; i < temptable.Rows.Count; i++ ) { DataRow temprow = (DataRow)temptable.Rows [i]; ... } Another option is to use an extension method public static void ForEachIndex (this IEnumerable e, Action del) { var i = 0; foreach ( var cur in e ) { del (cur,i); } } ... how many people are leaving the lds churchWebJun 8, 2024 · How to get the index of the current element in a foreach loop? The easiest way is to store and update the index in a separate variable. List myFriends = new List { "Emma", "Rupert", … how many people are left on the bacheloretteWebApr 21, 2016 · This has nothing to do with mouse or keyboard. I detect this case with code like this: bool lastRowSelected = false; if (grid.SelectedCells != null) { foreach (DataGridViewCell cell in grid.SelectedCells) { if (cell.RowIndex >= grid.NewRowIndex) { lastRowSelected = true; break; } } } Share Improve this answer Follow how can i change the star color in gmailWebJun 8, 2024 · Code4IT - a blog for dotnet developers. As you can see, actually using LINQ is slower than using a simple index.While in .NET Core 3 the results were quite similar, with .NET 5 there was a huge improvement both cases, but now using a simple index is two times faster than using LINQ. how many people are leaving chicago yearlyWebApr 9, 2024 · C# Program to Get the index of the Current Iteration of a foreach Loop Using Select () Method The method Select () is a LINQ method. LINQ is a part of C# that is … how can i change the font on my whatsappWebC# : How to get the index of the current ItemsControl item?To Access My Live Chat Page, On Google, Search for "hows tech developer connect"I promised to reve... how many people are literate in indiaWebApr 27, 2016 · Your foreach will be infinite: if you used an int (or long) index, you'll eventually overflow it (and unless you use an unchecked context, it'll throw an exception … how can i change printer settings