WebOct 15, 2024 · I have an asp.net application where I have a datatable ("DataTableA") that returns just one column ("ProductID"). I want to read each row of "ProductID", process some business logic, then copy both those columns (ProductID & ProductIDBusinessLogicValue) to DataTableB. This DataTableB is then displayed on the asp.net page. WebVB.Net - Do Loop Previous Page Next Page It repeats the enclosed block of statements while a Boolean condition is True or until the condition becomes True. It could be terminated at any time with the Exit Do statement. The syntax for this loop construct is −

VB.NET For Next Loop - Javatpoint

WebJul 26, 2015 · What you have to do is : - get the maximum number of rows (either in dt1 or dt2). VB. NumberOfRows = Math.Max (dt1.rows.count , dt2.rows.count) - make a loop with this variable, but check if the rows are assigned and instanced. VB. for i as integer = 0 to NumberOfRows -1 ' check and compare here next. - compare the entries and if not equal … WebApr 6, 2024 · Some more complicated examples of For loops in VB.NET: Example 1: Summing the Squares of Integers Suppose we want to find the sum of the squares of the integers from 1 to n. We can use a For loop to iterate through the integers and sum their squares: Private Sub Button1_Click(sender As Object, e As EventArgs) Handles … posamyk kaina

VB.NET - Looping through datatables and compare row values

WebVisual Basic For Loop Syntax. Following is the syntax of defining the For loop in Visual Basic programming language. For variable As [Data Type] = start To end. // Statements … WebA while loop begins with the while keyword, followed by parentheses, where you specify how long the loop continues, then a block to repeat. While loops typically add to, or subtract from, a variable used for counting. In the example below, the += operator adds 1 to the variable i, each time the loop runs. Example @Code Dim i=0 When a For...Next loop starts, Visual Basic evaluates start, end, and step. Visual Basic evaluates these values only at this time and then assigns start to counter. Before the statement block runs, Visual Basic compares counter to end. If counter is already larger than the end value (or smaller if step is negative), the For … See more You use a For...Nextstructure when you want to repeat a set of statements a set number of times. In the following example, the index variable starts with a value of 1 and is incremented with each iteration of the loop, ending after … See more The Exit For statement immediately exits the For…Next loop and transfers control to the statement that follows the Nextstatement. The Continue For statement transfers … See more You can nest For loops by putting one loop within another. The following example demonstrates nested For...Nextstructures that have different step values. The outer loop creates a string for every iteration of the loop. The inner … See more The following example removes all elements from a generic list. Instead of a For Each...Next Statement, the example shows a For...Next … See more posa mount sinai