Row. Data. Bound Event In Grid.View In ASP. NETThis example shows how to use a Row.Data. Bound event in a Grid.View to highlight the rows or cells in ASP.Firstly, I cant use any stored procedures or views.I know this may seem counterproductive, but those arent my rules.I have a DataTable, filled with data.It has. Here Mudassar Ahmed Khan has explained how to bulk copy data from DataTable DataSet to SQL Server database Table using SqlBulkCopy in C, VB.Net and ASP. Net.I have two datatables with same identity column.I want to update one column value in one table with other column value in another table.For example These are the.UqhzF.png' alt='Update Row In Datatable Using Linq To Sql Entities' title='Update Row In Datatable Using Linq To Sql Entities' />Update Row In Datatable Using Linq To Sql In CUpdate Row In Datatable Using Linq To Sql PartNET.This example is helpful in situations where you need to highlight the Grid.View rows or cells based on a specific condition.For demonstration purposes, I created a database named Database.Employee. The following is the table schema used in this example CREATE TABLE dbo.Employee Id INT NOT NULL, Name VARCHAR 5.NULL, City VARCHAR 5.NULL, Salary INT NULL, PRIMARY KEY CLUSTERED Id ASC Lets begin.Use the following procedure.Drop a Grid. View control from the toolbox and set the Auto.Generate. Columns property to false.Add a Columns Collection element to manage the collection of Column fields.Inside the Columns tag, add a column field Bound.Field that displays the value of a field in a data source.Set the Data. Field property to the name of the column in the table for binding to the Bound.Field object and set the Header.Text value for displaying it on the Grid.Views Header. Add a Row.Data. Bound Event to the Grid.View. Default. aspx Code lt form idform.Grid. View IDGrid.View. 1 runatserver Cell.Padding6 Auto. Generate.ColumnsFalse On. Row.Data. BoundGrid. View.Row. Data. Bound lt Columns lt asp Bound.Field Data. FieldId Header.TextId lt asp Bound.Field Data. FieldName Header.TextName lt asp Bound.Field Data. FieldCity Header.TextCity lt asp Bound.Field Data. FieldSalary Header.TextSalary lt Columns lt asp Grid.View lt div lt form In this example, I will highlight the complete row for the Employee with a Salary less than 1.Default. aspx. cs Codeusing System using System.Web. UI. Web. Controls using System.Data using System.Data. Sql. Client using System.Configuration using System.Drawing public partial class Default System.Web. UI. Page Sql.Connection con string cs Configuration.Manager. Connection.StringsDBCS. Connection.String protected void PageLoadobject sender, Event.Args e ifIs.Post. Back Show.Data protected void Show.Data Data.Table dt new Data.Table con new Sql.Connectioncs Sql.Data. Adapter adapt new Sql.Data. Adapterselect from tblEmployee,con con.Open adapt.Filldt con.Close Grid.View. 1. Data. Source dt Grid.View. 1. Data. Bind protected void Grid.View. 1Row. Data.Boundobject sender, Grid.View. Row. Event.Args e ife.Row. Row. TypeData.Control. Row. Type.Data. Row ifConvert.To. Int. 32e. Row.Cells3. Textlt 1.Row. Back. Color Color.Cyan Preview.Suppose we need to highlight the name of Employee but not the entire row of the Grid.View. We can do that using the following code protected void Grid.View. 1Row. Data.Boundobject sender, Grid.View. Row. Event.Args e if e.Row. Row. Type Data.Control. Row. Type.Data. Row if Convert.To. Int. 32e. Row.Cells3. Text lt 1.Row. Cells1. Back.Color Color. Red e.Row. Cells1. Fore.Color Color. White Preview I hope you like it.Thanks. My other articles on Grid.Updating the Database Using the Update Method in ADO.NETThis article has been excerpted from book A Programmers Guide to ADO.NET in C. The way the architecture works with the Data.Adapter is that you can make any changes you want to the filled Data.Set, and it wont affect the database until you call the Update method.When Update is called, the Data.Adapter will attempt to execute each query UPDATE, INSERT, DELETE on every row of the Data.Set that has been updated, inserted, and deleted.For example, if you call Delete on a row on the Data.Set, then when Update is called on the Data.Adapter, the Delete.Command of the Data.Adapter will be called using the particular row in the Data.Set. Note Keep in mind that this Update is different than a SQL UPDATE statement.To insert, update, and delete data using a Data.Adapter, you create an Ole.Db. Command object with INSERT, UPDATE, and DELETE statements and set the Insert.Command, Update. Command, and Delete. Installing Hardwood Flooring Parallel To Joists And Beams . Command properties of the data adapter to Ole.Db. Command. You can avoid building Command objects manually by using Command.Builder. As you saw in the Data.Table, Data. Row, and Data.Column sections at the beginning of this article, you can use the Delete method of a Data.Row to delete a row.The Add. New method of the Data.Table adds a row to a Data.Table. To change an existing rows data, you can directly assign a rows value.To save data to the data source, you need to call the Data.Adapters Update method.Note The Tables member of Data.Set represents all Data.Table objects attached to a Data.Set. Listing 5 4.Creates a new Data.Row, sets the data of Data.Row members, and adds rows to the table using the Add method of Data.Table. Rows. Listing 5 4.Adding a Data. Row to a Data.Table Data. Row row ds.TablesCustomers. New.Row rowCustomer. Id Tst.ID rowContact. Name Lana Jackob rowCompany.Name Mindcracker Inc.TablesCustomers. Rows.Addrow Listing 5 4.Data. Rows Delete method.Listing 5 4. 7. Deleting a Data Row From a Data Table Data.Row row. 1 ds. TablesCustomers.Rows. FindTst. ID row.Delete In this example, Ill show you how to add edit, and remove, data from the Northwind database.Ill display the result of the Customers table in a Data.Grid after adding, updating, and deleting data from the table.To test this source code create a Windows application, drop a Data.Grid, and three buttons Insert.Command, Update. Command, and Delete.Command to the form.Listing 5 4. 8 show the code on the Insert.Command button click event.As you can see from listing 5 4.I created a filled Data.Set and created a new Data.Row using the Data.Table. New. Row method.After creating a Data.Row, I set its column values and called the Data Adapters Update method and displayed data in the Data.Grid. I added new rows to the Customers table with Customer.Id, Customer. Name, and Company.Name named Tst. ID, Lana Jackob, and Mindcracker Inc., respectively.Listing 5 4. 8. Adding data using a Data Adapters Update method privatevoid Insert.Commandclickobject sender, System.Event. Args e string Connection.String ProviderMicrosoft.Jet. OLEDB. 4. 0 Data source C Northwind.Ole. Db. Connection conn new Ole.Db. ConnectionConnection.String Data. Row row Data.Set ds new Data. Set tryconn.Open Ole. Db. Data.Adapter adapter new Ole.Db. Data. AdapterSELECT FROM Customers, conn Ole.Db. Command. Builder cmd.Builder new Ole. Db.Command. Builderadapter adapter.Missing. Schema. Action Missing.Schema. Action. Add.With. Key adapter.Fillds, Customers row ds.TablesCustomers. New.Row rowCustomers.Id Tst. ID rowContact.Name Lana Jackob rowCompany.Name Mindcracker Inc.Tables customers.Rows. Addrow adapter.Updateds, Customers data.Grid. 1. Data. Source ds.Default. View. Manager catchOle.Db. Exception expMessage.Box. Showexp. Message.To. String if conn.State Connection.State. Openconn. Close Listing 5 4.The Find method returns the row with Customer.Id Tst. ID. After that I assign values of the row and call the Data.Adapters Update method.Listing 5 4. 9. Updating data using the Data.Adapters Update method privatevoid Update.Commandclickobject sender, System.Event. Args e string Connection.String ProviderMicrosoft.Jet. OLEDB. 4. 0 Data source C Northwind.Ole. Db. Connection conn new Ole.Db. ConnectionConnection.String Data. Set ds new Data.Set tryconn. Open Ole.Db. Data. Adapter adapter new Ole.Db. Data. Adapter SELECT FROM Customers, conn Ole.Db. Command. Builder cmd.Builder new Ole. Db.Command. Builderadapter adapter.Missing. Schema. Action Missing.Schema. Action. Add.With. Key adapter.Fillds, Customers Data.Row row. 1 ds. TablesCustomers.Rows. FindTst. ID row.Contact. Name Stacy Monter row.Company. Name Monter Inc.Updateds, Customers data.Grid. 1. Data. Source ds.Default. View. Manager catchOle.Db. Exception expMessage.Box. Showexp. Message.To. String if conn.State Connection.State. Openconn. Close Deleting a row is simple.Listing 5 5. 0 deletes the row with the value Tst.ID. As you can see from the code, I called the Find method to find the row and called the Delete method of the Data.Row. After that I called the Data.Adapters Update method to save the changes to the database table.Listing 5 5. 0. Deleting data using the Data.Adapters Update method privatevoid Delete.CommandClickobject sender, System.Event. Args e string Connection.String providerMicrosoft.Jet. OLEDB. 4. 0 Data Sourcec Northwind.Ole. Db. Connection conn new Ole.Db. ConnectionConnection.String Data. Set ds new Data.Set tryconn. Open Ole.Db. Data. Adapter adapter new Ole.Db. Data. AdapterSELECT FROM Customers, conn Ole.Db. Command. Builder cmd.Builder new Ole. Db.Command. Builderadapter adapter.Missing. Schema. Action Missing.Schema. Action. Add.With. Key adapter.Fillds, Customers Data.Row row. 1 ds. TablesCustomers.Rows. FindTst. ID row.Delete adapter. Updateds, Customers data.Grid. 1. Data. Source ds.Default. View. Manager catch Ole.Db. Exception expMessage.Box. Showexp. Message.To. String ifconn.State Connection.State. Openconn. Close Conclusion.Hope this article would have helped you in understanding Updating the Database Using the Update Method in ADO.NET. See my other articles on the website on ADO.
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