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DrawListViewSubItemEventArgs.DrawText Method (TextFormatFlags)

Draws the text of the ListViewItem.ListViewSubItem using its current foreground color and formatting it with the specified TextFormatFlags values.

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

public void DrawText(
	TextFormatFlags flags
)

Parameters

flags
Type: System.Windows.Forms.TextFormatFlags

A bitwise combination of TextFormatFlags values.

Use this method to draw the subitem text using the current values of the ListViewItem.ListViewSubItem.ForeColor and ListViewItem.ListViewSubItem.Font properties. The text is drawn within the area specified by the Bounds property. The TextFormatFlags values specified in the flags parameter let you provide formatting properties for the node label, such as text alignment.

NoteNote

The UseItemStyleForSubItems property of the parent ListViewItem must be set to false to prevent the ListViewItem.ForeColor and ListViewItem.Font values of the parent item from overriding the subitem values.

The following code example demonstrates how to use the DrawText method in an application that provides custom drawing for a ListView control. In the example, a handler for the ListView.DrawSubItem event draws the subitem text values and both the text and background for subitems that have negative values.

For the complete example, see the DrawListViewSubItemEventArgs overview reference topic.

// Draws subitem text and applies content-based formatting. 
private void listView1_DrawSubItem(object sender,
    DrawListViewSubItemEventArgs e)
{
    TextFormatFlags flags = TextFormatFlags.Left;

    using (StringFormat sf = new StringFormat())
    {
        // Store the column text alignment, letting it default 
        // to Left if it has not been set to Center or Right. 
        switch (e.Header.TextAlign)
        {
            case HorizontalAlignment.Center:
                sf.Alignment = StringAlignment.Center;
                flags = TextFormatFlags.HorizontalCenter;
                break;
            case HorizontalAlignment.Right:
                sf.Alignment = StringAlignment.Far;
                flags = TextFormatFlags.Right;
                break;
        }

        // Draw the text and background for a subitem with a  
        // negative value.  
        double subItemValue;
        if (e.ColumnIndex > 0 && Double.TryParse(
            e.SubItem.Text, NumberStyles.Currency,
            NumberFormatInfo.CurrentInfo, out subItemValue) &&
            subItemValue < 0)
        {
            // Unless the item is selected, draw the standard  
            // background to make it stand out from the gradient. 
            if ((e.ItemState & ListViewItemStates.Selected) == 0)
            {
                e.DrawBackground();
            }

            // Draw the subitem text in red to highlight it. 
            e.Graphics.DrawString(e.SubItem.Text,
                listView1.Font, Brushes.Red, e.Bounds, sf);

            return;
        }

        // Draw normal text for a subitem with a nonnegative  
        // or nonnumerical value.
        e.DrawText(flags);
    }
}

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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