how to convert from datatable to list?
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['private static List<T> ConvertDataTable<T>(DataTable dt)', '{', 'List<T> data = new List<T>();', 'foreach (DataRow row in dt.Rows)', '{', 'T item = GetItem<T>(row);', 'data.Add(item);', '}']
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First the DataTable will be populated with records from Database and then using the data from DataTable will be exported to Excel using ClosedXml library which is wrapper of OpenXml library. In this article I will explain with an example, how to export DataTable data to Excel file in ASP.Net using C# and VB.Net.
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Export DataTable to Excel sheet in C# and VB.NET For instance, using the InsertDataTableOptions. ColumnHeaders property you can specify if DataTable column names should be inserted above the data.
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['datatable. select() will give you an array of DataRow, but you already have it from using the For Each Row activity.', "Even if you pass just row to the Add Data Row activity, it'll give you an error, because that row belongs to another table ( ExtractDataTable3 )."]
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First the DataTable will be populated with records from Database and then using the data from DataTable will be exported to Excel using ClosedXml library which is wrapper of OpenXml library. You can download the libraries using the following download locations.
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var table = $('#example'). DataTable({ columns: [ { name: 'first-name' }, { name: 'last-name' }, { name: 'position' }, { name: 'location' }, { name: 'salary' } ] });
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['ExistingDbConnection: use the output from Connect activity.', 'SQL: Write the Sql query between inverted commas as a string.', 'Right click on DataTable field , Create Variable and give a name to your datatable.']
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var rows = dTable. Select("col1 ='ali'"); foreach (var row in rows) row. Delete();
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['Use the value property of the select list.', 'Use the selectedIndex property.']
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['GridViewRow row = dgCustomer. SelectedRow; TextBox1. Text = "Cell Value" + row. Cells[1]. Text + ""; And it writes the "Cell Value" but nothing else. ... ', 'GridViewRow row = dgCustomer. SelectedRow; TextBox1. Text = row. RowIndex. ToString(); I have tried:', 'TextBox1. Text = dgCustomer. Rows[row. RowIndex]. Cells[1]. Text;']
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['<%@ Page Title="ASP.NET Webform: Datatables Jquery Plugin Integration" Language="C#" MasterPageFile="~/Site. ... ', '<asp:Content ID="BodyContent" ContentPlaceHolderID="MainContent" runat="server">', '<div class="row">', '<div class="panel-heading">']
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['Create your list with matching values.', 'On the Data tab choose Data Validation.', 'The Data validation form will be displayed.', 'Set the Allow dropdown to List.', 'Set the Source range to the first part of your list.', 'Click on OK (User messages can be added if required)']
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If you need to copy data in the DataTable to SQL database table, you don't need to use ADO.NET, create an INSERT statement and loop through each row, instead you can simply use the SqlBulkCopy class using WriteToServer method that accepts a DataTable object as an argument.
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['Table is selected for view and is grayed. ... ', 'You can put the data either in an existing worksheet or a New worksheet.']
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['Add an Excel Application Scope activity (in the properties give the folder path for the file)', 'Add a Read Range Activity and give the workbookpath and sheet name. Store the results in a variable called dt (of the type DataTable)', 'Add a Write CSV activity and give dt (DataTable from previous step) as the input.']
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['Project Structure.', 'JQueryDatatableController.', 'I have created a separate controller called JQueryDatatableController in which we are returning List of Employee objects as a JSON string.', 'To convert Java Object into JSON string I have used a Jackson api. ... ', 'pom.xml.', 'Employee.java.', 'LoadDataService.', 'Common.css.']
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['Select one or more cells to validate.', 'On the Data tab, in the Data Tools group, click Data Validation.', 'On the Settings tab, in the Allow box, select List.', 'In the Source box, type your list values, separated by commas. ... ', 'Make sure that the In-cell dropdown check box is selected.']