ASPxGridView - How to make some field editors read-only when editing a row and allow their editing when adding a new row

Question Comments

It's so good example.

Thank you so much !!!

[ASPX]

<dx:ASPxGridView ID="grid" ClientInstanceName="grid" ....
KeyFieldName="MST_CD" OnCellEditorInitialize="grid_CellEditorInitialize">

<dx:ASPxGridView ID="gridDetail" ClientInstanceName="gridDetail" ....
KeyFieldName="MST_CD;CD" OnCellEditorInitialize="grid_CellEditorInitialize">

[C#]
   protected DataTable dtGrid = null;
   protected DataTable dtGridDetail = null;

   protected void Page_Load(object sender, EventArgs e)
   {
       if (! Page.IsPostBack)
       {
               //GET DATATABLE
               dtGrid = dataset.Tables[0];
               //SET PRIMARY KEY(S)
               dtGrid.PrimaryKey = new DataColumn[] { dtGrid.Columns["MST_CD"] };
               //SET SESSION
               Session["DataSet"] = dtGrid;

               dtGridDetail = dataset2.Tables[0];
               dtGridDetail .PrimaryKey = new DataColumn[] { dtGrid.Columns["MST_CD;CD"] };
               Session["DataSetDetail"] = dtGridDetail ;
       }
       else
       {
           dtGrid = (DataTable)Session["DataSet"];
           dtGridDetail = (DataTable)Session["DataSetDetail"];
       }

       grid.DataSource = dtGrid;
       grid.DataBind();

       gridDetail.DataSource = dtGridDetail;
       gridDetail.DataBind();
   }

   /// <summary>
   /// Prevent Editing of the Key Column(s) on Cell Updating
   /// </summary>
   /// <param name="sender"></param>
   /// <param name="e"></param>
   protected void grid_CellEditorInitialize(object sender, ASPxGridViewEditorEventArgs e)
   {
       ASPxGridView oGrid = sender as ASPxGridView;

       string sSession = string.Empty;

       if ("grid" == oGrid.ClientInstanceName )
       {
           sSession = "DataSet";
       }
       else if ("gridDetail" == oGrid.ClientInstanceName)
       {
           sSession = "DataSetDetail";
       }

       DataTable oDt = (DataTable)Session[sSession];
       
       for (int i = 0; i < oDt.PrimaryKey.Length; i++)
       {
           if (e.Column.FieldName == oDt.PrimaryKey[i].ColumnName)
           {
               e.Editor.ReadOnly = !oGrid.IsNewRowEditing;
               return;
           }
       }
   }

Hi! I am using Batch Edit mode but CellEditorInitialize event will not fired when clicking New button, any other method can do this scenario else? Thanks!

Hello,

To process your recent post more efficiently, I created a separate ticket on your behalf: T237217: ASPxGridView - Batch Editing - The CellEditorInitialize event will not fired when clicking New button. This ticket is currently in our processing queue. Our team will address it as soon as we have any updates.