Dataset where condition in c#
WebSep 1, 2024 · This could be the solution: var result = dsGrades.Tables [0].Select ("Convert (MarksFrom, 'System.Decimal') >=" + newMarks + " And Convert (MarksTo, 'System.Decimal') < " newMarks + 1); From my … WebI have an application which stores a user selected value to the value in my dataset filled datatable. I need to set another column in the table based on this comparison. But the comparison is not working. It always returns false, not entering in the if condition.
Dataset where condition in c#
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WebFeb 7, 2012 · Correct, you get true if there is any record in the DataSet no matter in which table. If you want to make sure all tables have a record: bool HasRecords (DataSet dataSet) { bool res = true; foreach (DataTable dt in dataSet.Tables) if (dt.Rows.Count == 0) res = false; return res; } – Tomek Feb 7, 2012 at 10:11 Add a comment 0 WebLINQ to DataSet-按變量字段分組,或按可變條件(加和)聯接 [英]LINQ to DataSet - group by variable field, or join on a variable condition (with sum) David Fox 2010-03-08 15:26:19 1819 2 c#/ join/ linq-to-dataset. 提示:本站為國內最大中英文翻譯問答網站,提供中英文對照 …
WebAug 11, 2010 · You can use LINQ to DataSets to do this: Assert.IsTrue (dataSet.Tables [0].AsEnumerable ().Where ( r => ( (string) r ["Col1"]) == "MyValue").Count () == 1); Note, you can also do this without the call to Assert: dataSet.Tables [0].AsEnumerable ().Where ( r => ( (string) r ["Col1"]) == "MyValue").Single (); WebSep 15, 2024 · C# // Fill the DataSet. DataSet ds = new DataSet (); ds.Locale = CultureInfo.InvariantCulture; FillDataSet (ds); DataTable products = ds.Tables …
WebOct 19, 2012 · DataSet ds = new DataSet ("TimeRanges"); using (SqlConnection conn = new SqlConnection ("ConnectionString")) { SqlCommand sqlComm = new SqlCommand ("Procedure1", conn); sqlComm.Parameters.AddWithValue ("@Start", StartTime); sqlComm.Parameters.AddWithValue ("@Finish", FinishTime); … WebMar 26, 2012 · I have a DataSet where I want to be able to have a Select Where Condition based on a search made by the user and bind the data back to the GridView. ... Filter in a Dataset in asp.net C#. 0. Merging the table from 3 dataset to 1. 0. Gridview paging …
WebSep 2, 2010 · You are assuming you have rows in your DataSet. Instead of if ( (ds.Tables [0].Rows [0] ["IsConfirmed"]).ToString () == "True" && (ds.Tables [0].Rows [0] ["Active"]).ToString () == "N") you should do something like
WebDec 17, 2013 · 8 Answers. Sorted by: 74. Make a string criteria to search for, like this: string searchExpression = "ID = 5". Then use the .Select () method of the DataTable object, like this: DataRow [] foundRows = YourDataTable.Select (searchExpression); Now you can loop through the results, like this: int numberOfCalls; bool result; foreach (DataRow dr in ... tax id washington stateWebOct 7, 2024 · User-1188286573 posted. I see on many site but every one checks the condition of Dataset Row Count. But nothing works for me. Because these solutions work if we have Table in our dataset but will not work if we have empty Dataset in … taxi dutch harborWebpublic DataSet test (DataSet ds, int max) { int i = 0; int j = 1; DataSet newDs = new DataSet (); DataTable newDt = ds.Tables [0].Clone (); newDt.TableName = "Table_" + j; newDt.Clear (); foreach (DataRow row in ds.Tables [0].Rows) { DataRow newRow = newDt.NewRow (); newRow.ItemArray = row.ItemArray; newDt.Rows.Add (newRow); i++; if (i == max) { … the christmas shoes castWebFeb 4, 2014 · You can use the DefaultView.ToTable method of a DataTable to do the filtering like this (adapt to C#): Public Sub RemoveDuplicateRows(ByRef rDataTable As DataTable) Dim pNewDataTable As DataTable Dim pCurrentRowCopy As DataRow Dim pColumnList As New List(Of String) Dim pColumn As DataColumn 'Build column list For … the christmas shepherd imdbWebJun 4, 2015 · I have a result dataset, Dataset dsResult = new Dataset(); dsResult.Tables[0].Rows.Count = 17. Now i want to loop through data table for first 5 rows and create a dsResult.Tables[1] and then next 5 more rows to dsResult.Tables[2] and next 5 more to dsResult.Tables[3] then last two rows to dsResult.Tables[4] tax id vs social securityWebDec 19, 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. tax id white plains hospitalWebMostly DataSet is used with GridView in ASP.Net. Here, I have explained DataAdapters and DataSets with Examples. 1. Open Visual Studio 2015 and Go to File > New >. Project. Create a New Windows Forms Application Dataset_Example. 2. Drag a GridView and a Button like that. Extract Data from DataSet to GridView. the christmas shoes book series