ValidateEdit Event

Fires before the control exits cell edit mode, while the editor is still active.

Syntax

Visual Basic
C#
C++/CLI

'Declaration
 
<C1DescriptionAttribute("Fires before the control exits cell edit mode, while the editor is still active.")>
Public Event ValidateEdit As ValidateEditEventHandler

'Usage
 
Dim instance As C1FlexGridBase
Dim handler As ValidateEditEventHandler
 
AddHandler instance.ValidateEdit, handler

[C1Description("Fires before the control exits cell edit mode, while the editor is still active.")]
public event ValidateEditEventHandler ValidateEdit

[C1Description("Fires before the control exits cell edit mode, while the editor is still active.")]
public:
event ValidateEditEventHandler^ ValidateEdit

When this event fires, the contents of the editor have not been applied to the grid. You can validate the editor contents and cancel the edits if necessary.

To validate the editor contents, check the value contained in the Editor.Text property. If the value is invalid for the cell, set the Cancel parameter to true and the grid will remain in edit mode until the user types a valid entry.

For example, the code below checks to make sure the value entered is an integer between 0 and 100:

void _flex_ValidateEdit(object sender, ValidateEditEventArgs e) { if (_flex.Cols[e.Col].Name = "Score") { try { int value = int.Parse(_flex.Editor.Text); if (value >= 0 && value <= 50) return; // accept edits } catch {} // error or invalid range, refuse edits e.Cancel = true; } }

For example, the code below checks to make sure the value entered is an integer between 0 and 100:

void _flex_ValidateEdit(object sender, ValidateEditEventArgs e)
{
    if (_flex.Cols[e.Col].Name = "Score")
    {
        try
        {
            int value = int.Parse(_flex.Editor.Text);
            if (value >= 0 && value <= 50)
                return; // accept edits
        }
        catch {}
    
        // error or invalid range, refuse edits
        e.Cancel = true;
    }
}

Reference