The DataGridView control provides a powerful and flexible way to display data in a tabular format. You can use the DataGridView control to show read-only views of a small amount of data, or you can scale it to show editable views of very large sets of data. This control also let's you display data in a master-details view.
With the DataGridView control, you can display and edit tabular data from many different kinds of data sources. Binding data to the DataGridView control is straightforward and intuitive, and in many cases it is as simple as setting the DataSource property. When you bind to a data source that contains multiple lists or tables, set the DataMember property to a string that specifies the list or table to bind to.
The DataGridView control supports the standard Windows Forms data binding model, so it will bind to instances of classes described in the following list,. The DataGridView control supports data binding to the public properties of the objects returned by these interfaces or to the properties collection returned by an ICustomTypeDescriptor interface, if implemented on the returned objects.
Typically, you will bind to a BindingSource component and bind the BindingSource component to another data source or populate it with business objects. The BindingSource component is the preferred data source because it can bind to a wide variety of data sources and can resolve many data binding issues automatically. The DataGridView control can also be used in unbound mode, with no underlying data store.
An Unbound column is one that is not directly linked to a DataSource. Next, change the header text. The text you type into the Header text box will ensure that the text is always shown.
This means you can display a different form of the column's name than is in the actual DataTable and database. Note: For the example, I change the Weight cell header to "Weight". This ensures users will know to use pounds, not kilograms. I set px as the width and AutoSizeMode of None. You need to specify that a certain column in your database be inserted into the Column you just added in the Columns dialog box.
To do this, you must assign the DataPropertyName of the column to the column name from your database. Alternating colors. For usability, you want to have alternating row colors on your DataGridView.
Fortunately, newer versions of the. Click to change that property. Tip: Change the BackColor to something your users will enjoy, and that will improve the program's usability. I chose aqua. Use Windows Forms. This tutorial takes a specific table from a database as a DataTable and displays it on a DataGridView. This is done with a DataAdapter and data logic.
Next, in the designer, drag the DataGridView icon into the window. On the right part of the window, we see the Visual Studio Toolbox. Here we need to generate an SDF file to interact with. We will use Visual Studio for this part. This is the Visual Studio wizard that you can use to add a new database. Create table. Windows Forms. Data adapter. C program that uses SqlCeConnection using System. Data; using System. SqlServerCe; using System. DataSet, DataTable. The DataSet object available in System.
Data has a slightly different purpose than DataTable, as it allows more information to be stored. For this tutorial, however, DataTable is adequate. The default DataGridView appearance and functionality is not usually the best. Here we make some tweaks to the DataGridView to make it more pleasing. Appearances are important—let's improve them. First improvement steps. Expand and anchor the DataGridView. DefaultView; dataGridViewBooth. DefaultView; dataGridViewCash. Clear ; dataGridViewBooth. Clear ; dataGridViewCash.
Show "Are you sure you want to Export this data to excel? Application oXL; Excel. Application ; oXL. Add Missing. ActiveSheet; if radioButtonCash. ToString ; oSheet. AutoFit ; oRng. Bisque; oSheet. Clear ; foreach DataRow row in dt. Add row[column.
Concat errorMessage, theException. Source ; MessageBox. Clear ; buttonViewData. OK ; System. CreateCommand ; oCmd. Load oCmd. ExecuteReader ; this. Close ; MessageBox. Show "close conn" ; MessageBox. Show exp. OK ; buttonViewData.
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