If you want the name from the parent table displayed in the grid too then you would add a combo box column to the grid and bind the parent DataTable to it in basically the same way as you did to the ComboBox control. This class creates a table with formatted cells and allows. By default, that will display the foreign key value in the grid rather than the name from the parent table. Public Class Form1 Private Builder As New OleDb.OleDbConnectionStringBuilder With ' Use original LINQ above and append Where via Lambda Query = Query.Where(Function(c) c.Country = cboCountries.Text) DataGridView1.DataSource = Query. To initialize a data table, apply the slds-table class to the table element. In the end a DataGridView displays the data from out select statement. The default property of a ComboBox is the Value property. Some applications don't support column headings, others provide only limited support. Each row can have one or more columns, which can appear with or without headings. How to append parts to the select statement in regards to the WHERE clause, this is one. The list in a ComboBox consists of rows of data. Granted there are many different ideas on In the Button1 click event we check the user selections and build a SQL statement followed by executing the statement against the backend database. Imports SqlSamples.Classes Public Class Form1 Private Sub InsertButtonClick (sender As Object, e As EventArgs) Handles InsertButton.Click If CompanyNameComoboBox.SelectedIndex > -1 Then Dim primaryKey. The example below is simple, provideĭistinct values for two columns in a table in the form load event. ComboBox name is CompanyNameComoboBox, the Import statement points to the class to perform data operations in a folder named Classes. To make this possible, you must link the. One method would be to load ComboBox controls with distinct values for specific columns from the database table you want to query against then have the user select from these ComboBox controls and build a SQL statement. For a relational database, you may want the combo box to display a list of values from a column of another table.
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