GridViewCommandColumn.CustomButtons Property

Gets the collection of custom buttons.

Namespace: DevExpress.Web

Assembly: DevExpress.Web.v19.2.dll

Declaration

C#

[DefaultValue(null)]
public GridViewCommandColumnCustomButtonCollection CustomButtons { get; }

VB.NET

<DefaultValue(Nothing)>
Public ReadOnly Property CustomButtons As GridViewCommandColumnCustomButtonCollection

Property Value

Type	Default	Description
GridViewCommandColumnCustomButtonCollection	*null*	A GridViewCommandColumnCustomButtonCollection object which represents the collection of custom buttons.

Remarks

Command columns can display custom buttons. You can create your own buttons, and define custom actions for them by handling the ASPxGridView.CustomButtonCallback event.

Example

WebForms:

ASPX

<dx:ASPxGridView ID="grid" runat="server" DataSourceID="DemoDataSource1" KeyFieldName="EmployeeID" 
AutoGenerateColumns="False" OnCustomButtonCallback="grid_CustomButtonCallback" ...>
    <Columns>
        <dx:GridViewCommandColumn ShowNewButton="true" ShowEditButton="true" VisibleIndex="0" ButtonRenderMode="Image">
            <CustomButtons>
                <dx:GridViewCommandColumnCustomButton ID="Clone">
                    <Image ToolTip="Clone Record" Url="Images/clone.png" />
                </dx:GridViewCommandColumnCustomButton>
            </CustomButtons>
        </dx:GridViewCommandColumn>
        ...
    </Columns>
</dx:ASPxGridView>

C#

protected void grid_CustomButtonCallback(object sender, ASPxGridViewCustomButtonCallbackEventArgs e) {
    if(e.ButtonID != "Clone") return;
    copiedValues = new Hashtable();
    foreach(string fieldName in copiedFields)
        copiedValues[fieldName] = grid.GetRowValues(e.VisibleIndex, fieldName);
    grid.AddNewRow();
}

MVC:

C#

using System;
using System.Collections.Generic;
using System.Web.Mvc;
using MyProject.Models;
namespace MyProject.Controllers
{
    public class HomeController : Controller
    {
        // ... 
        // "gridItems()" returns a list of records displayed within a GridView. 
        // Handle the custom callback. 
        public ActionResult CustomButtonClick(string clickedButton)
        {
            // Show a different number of records depending on the ID of the custom button that was clicked. 
            if (clickedButton == "First10") { 
                return PartialView("_GridViewPartial", gridItems().GetRange(0, 10)); 
            }
            else {
                return PartialView("_GridViewPartial", gridItems().GetRange(0, 5) );
            }
        }
    }
}

Razor (PartialView)

@Html.DevExpress().GridView(settings => {
    settings.Name = "GridView";
    //... 
    settings.CommandColumn.Visible = true;
    settings.CommandColumn.CustomButtons.Add(new GridViewCommandColumnCustomButton() {
        ID = "First10", 
        Text = "First 10", 
        Visibility = GridViewCustomButtonVisibility.FilterRow 
    });
    settings.CommandColumn.CustomButtons.Add(new GridViewCommandColumnCustomButton() { 
        ID = "First5", 
        Text = "First 5", 
        Visibility = GridViewCustomButtonVisibility.FilterRow 
    });
    // When an end-user clicks a custom command button, GridView performs a callback to the server;  
    // this callback is handled by Controller and Action, specified via the CustomActionRouteValues property. 
    // In this example, GridView passes the ID of the clicked button.  
    // Depending on the button that was clicked, the Action applies the required filter. 
    settings.ClientSideEvents.CustomButtonClick = "function(s, e){ GridView.PerformCallback( { clickedButton : e.buttonID } ); }";
    ...    
}).Bind(Model).GetHtml()

Online Demo

ASPxGridView - Custom Command Buttons