DataGridViewComboBoxColumn::MaxDropDownItems Property

 

Gets or sets the maximum number of items in the drop-down list of the cells in the column.

Namespace:   System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

public:
property int MaxDropDownItems {
	int get();
	void set(int value);
}

Property Value

Type: System::Int32

The maximum number of drop-down list items, from 1 to 100. The default is 8.

Exception Condition
InvalidOperationException

The value of the CellTemplate property is null.

Getting or setting this property gets or sets the MaxDropDownItems property of the object returned by the CellTemplate property. Setting this property also sets the MaxDropDownItems property of every cell in the column. To override the specified value for individual cells, set the cell values after you set the column value.

The following code example demonstrates how to use a DataGridViewComboBoxColumn to aid in entering data into the TitleOfCourtesy column. This example is part of a larger example available in the DataGridViewComboBoxColumn class overview topic.

private:
    void SetAlternateChoicesUsingItems(
        DataGridViewComboBoxColumn^ comboboxColumn)
    {
        comboboxColumn->Items->AddRange("Mr.", "Ms.", "Mrs.", "Dr.");
    }

private:
    DataGridViewComboBoxColumn^ CreateComboBoxColumn()
    {
        DataGridViewComboBoxColumn^ column =
            gcnew DataGridViewComboBoxColumn();
        {
            column->DataPropertyName = ColumnName::TitleOfCourtesy.ToString();
            column->HeaderText = ColumnName::TitleOfCourtesy.ToString();
            column->DropDownWidth = 160;
            column->Width = 90;
            column->MaxDropDownItems = 3;
            column->FlatStyle = FlatStyle::Flat;
        }
        return column;
    }

.NET Framework
Available since 2.0
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