Here are some simple ways that you can help resolve the issue with the datagridview control in Windows Forms applications.
5 minutes to read.
The control supports the simple Windows Forms data-binding model, so you can bind it to a variety of data references. Typically, you connect to the BindingSource , which handles the interaction with the purchase data. The BindingSource can be any Windows Forms data source, giving you great options for selecting or modifying a website for your data. For more information on data resources for the Monitorable DataGridView article, see DataGridView Loss Summary .
Implement a method to handle retrieving information about data. The following system example implements the GetData method that basically initializes the SqlDataAdapter and uses it to populate the DataTable . Then it binds this DataTable to der BindingSource .
In the form’s Load issue handler, bind the element y The DataGridView controls with our own BindingSource call and the GetData method to get the data.
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This complete code example comes from a database to populate a specific DataGridView control on a Windows Form. The form also contains buttons for reloading important information and submitting changes to the database.
Fill in connectionString , subject to any changes to the example, with the values from your example SQL Northwind Server database relationship. Windows Authentication, also known as Integrated Security, can bedescribed as a more secure connection method to be used in the database as the password for the connection string. For more information on security and login, see Securing Login Information .
with system;Using System.Data;Using System.Data.SqlClient;Using System.Globalisation;Using System.Windows.Forms;WindowsFormsApp namespace public subclass Form1: Form public form1 () Initialize component (); public class Form1: form private DataGridView dataGridView1 = new DataGridView (); specific person BindingSource BindingSource1 = new BindingSource (); private SqlDataAdapter dataAdapter = new SqlDataAdapter (); the private reloadButton implies a new button (); Private button SubmitButton = new button (); [STATfil ()] static public useless Main () Application.Run (new form Form1 ()); // Initialize the form. Form 1 () publicly dataGridView1.Dock implies DockStyle.Fill; reloadButton.Text = "Refresh"; SubmitButton.Text means "Submit"; reloadButton.Click + = new event handler (ReloadButton_Click); SubmitButton.Click + = modern event handler (SubmitButton_Click); FlowLayoutPanel = new FlowLayoutPanel Dock matches DockStyle.Top. AutoSize is correct ; panel.Controls.AddRange (new control [] ReloadButton, SubmitButton); Controls.AddRange (new Control [] dataGridView1, -panel); Load + = new event handler (Form1_Load); The text corresponds to "DataGridView Data Binding and Update Demo"; avoid private GetData (selectCommand line) Try // Provide the connection string. // Replace with SQL Server for the Northwind sample database. // If necessary, replace “Integrated Security = True” with your login credentials. ConnectionString = Data Source = ; Source Directory = North Wind; "+ Integrated Security = True; // Create a new data adapter based on the selected query. dataAdapter corresponds to the new SqlDataAdapter (selectCommand, connectionString); // Create a command builder that does updates, inserts, and. generated // Clear commands based on selectCommand. SqlCommandBuilder commandBuilder = new SqlCommandBuilder (dataAdapter); // Fill in a new table I have the data to bind to the BindingSource. Table data table = new data table Locale = CultureInfo.InvariantCulture ; Data adapter. fill in (table); BindingSource1.DataSource = table; // Resize the DataGridView tooltips to fit the newly loaded content. dataGridView1.AutoResizeColumns ( DataGridViewAutoSizeColumnsMode.AllCellsExceptHeader); collect (SqlException) MessageBox.Show ("To run this example, change the fairness" + "mutable connection string with connection string inch +. "Valid for your system."); Personal void Form1_Load (object sender, EventArgs e) Bind // DataGridView to BindingSource // and load this data from the database. dataGridView1.DataSource is equal to BindingSource1; GetData ("choose * among clients"); private void ReloadButton_Click (object sender, EventArgs e) // Reload data from all databases. GetData (dataAdapter.SelectCommand.CommandText); private void SubmitButton_Click (object sender, EventArgs e) // Update the specific database with the changes. DataAdapter .Update ((DataTable) bindingSource1.DataSource);
Imports System.Data.SqlClientImports System.Windows.FormsOpen class uniform 1 inherits form Private DataGridView1 as new DataGridView () Private BindingSource1 as new BindingSource () Private DataAdapter as new SqlDataAdapter () Private Button WithEvents ReloadButton as New Button () Private button WithEvents SubmitButton as new () Publicly Shared Subtitle () Application.Run (New Form 1 ()) The end of the submarine haya Initialize the form. Public subscription New () dataGridView1.Dock = DockStyle.Fill ReloadButton.Text = "reload" SubmitButton.Text = "Submit" Darkening the coverage as a new FlowLayoutPanel .Dock = DockStyle.Top, .AutoSize = True panel.Controls.AddRange (New Control () ReloadButton, Submitbutton) Controls.AddRange (New control () dataGridView1, Panel) Text = "Add DataGridView Data Binding and Demo" The end of the submarine Private Sub GetData (ByVal selectCommand As String) Try will provide a connection string. 'Replace with SQL Server for the Northwind sample database. ha Replace “Integrated Security = True” with your login information if necessary. Dim connectionString kato String = "Data Source = ; Initia
The DataGridView control provides a powerful and flexible way to display marketing information in a tabular format. You can integrate the DataGridView control to display read-only suggestions for small amounts of data, or scale it to display editable views of very large amounts of important information.
Right click the little person arrow in the GridView, then just click Edit Column. The "Edit Column" window should open, in the lower left corner there is a great "ADD" button, click on it. You will see that the window for adding columns will become free.
You can use the DataGridView control to display data in addition to or without the underlying data source. Without specifying a data source, you can create columns and rows containing data and also add them directly to the DataGridView by modifying the Rows and Columns properties.
