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Find Method (PropertyDescriptor, Object)
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BindingSource.Find Method (PropertyDescriptor, Object)

Searches for the index of the item that has the given property descriptor.

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

public virtual int Find(
	PropertyDescriptor prop,
	Object key
)

Parameters

prop
Type: System.ComponentModel.PropertyDescriptor
The PropertyDescriptor to search for.
key
Type: System.Object
The value of prop to match.

Return Value

Type: System.Int32
The zero-based index of the item that has the given value for PropertyDescriptor.

Implements

IBindingList.Find(PropertyDescriptor, Object)

ExceptionCondition
NotSupportedException

The underlying list is not of type IBindingList.

This method is typically used in complex data-binding cases to locate the first row where the value of the field specified by the prop parameter equals the value of the key parameter

This method simply refers the request to the underlying list's IBindingList.Find method. For example, if the underlying data source is a DataSet, DataTable, or DataView, this method calls the DataView.IBindingList.Find method. The behavior of IBindingList.Find, such as the value returned if no matching item is found, depends on the implementation of the method in the underlying list.

The following code example demonstrates how to use the Find method. For the complete example see the class overview topic.


private void button1_Click(object sender, EventArgs e)
{
    if (binding1.SupportsSearching != true)
        MessageBox.Show("Cannot search the list.");
    else
    {
        int foundIndex = binding1.Find("Name", textBox1.Text);
        if (foundIndex > -1)
            listBox1.SelectedIndex = foundIndex;
        else
            MessageBox.Show("Font was not found.");
    }
}


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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

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