CancelNew Method

BindingList<T>.CancelNew Method

Discards a pending new item.

Namespace:  System.ComponentModel
Assembly:  System (in System.dll)

public virtual void CancelNew(
	int itemIndex
)

Parameters

itemIndex
Type: System.Int32

The index of the of the new item to be added

Implements

ICancelAddNew.CancelNew(Int32)

The CancelNew method rolls back a pending new item that was added through the AddNew method, but has not yet been committed.

For more information about adding and committing new items, see the AddNew method

The following code example demonstrates how use the CancelNew method. For the complete example, see the BindingList<T> class overview topic.

// Add the new part unless the part number contains 
// spaces. In that case cancel the add. 
private void button1_Click(object sender, EventArgs e)
{
    Part newPart = listOfParts.AddNew();

    if (newPart.PartName.Contains(" "))
    {
        MessageBox.Show("Part names cannot contain spaces.");
        listOfParts.CancelNew(listOfParts.IndexOf(newPart));
    }
    else
    {
        textBox2.Text = randomNumber.Next(9999).ToString();
        textBox1.Text = "Enter part name";
    }
}

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0

.NET Compact Framework

Supported in: 3.5, 2.0

XNA Framework

Supported in: 3.0, 2.0, 1.0

Community Additions

ADD
Show:
© 2016 Microsoft