How to: View Errors Within a DataSet with the Windows Forms ErrorProvider Component

You can use the Windows Forms ErrorProvider component to view column errors within a dataset or other data source. For an ErrorProvider component to display data errors on a form, it does not have to be directly associated with a control. Once it is bound to a data source, it can display an error icon next to any control that is bound to the same data source.

1. Bind the component to a specific column within a data table.

   // Assumes existence of DataSet1, DataTable1
   textBox1.DataBindings.Add("Text", DataSet1, "Customers.Name");
   errorProvider1.DataSource = DataSet1;
   errorProvider1.DataMember = "Customers";
   

2. Set the ContainerControl property to the form.

   errorProvider1.ContainerControl = this;
   

3. Set the position of the current record to a row that contains a column error.

   DataTable1.Rows[5].SetColumnError("Name", "Bad data in this row.");
   this.BindingContext [DataTable1].Position = 5;
   

• ErrorProvider Component Overview
• How to: Display Error Icons for Form Validation with the Windows Forms ErrorProvider Component