Hi, I am using the following MVC Helper to generate iggrid. I saw multiple samples for email validation, but there are only show email validation for simple controls. How can I add email validation with a regex for the below bolded column in the sample below. Also is there an option to add placeholder for columns in RowEditDialog template

@(Html.Infragistics()
.Grid(Model)
.ID("grid")
.PrimaryKey("id")
.AutoGenerateColumns(false)
.AutoGenerateLayouts(false)
.LoadOnDemand(true)
.Columns(column =>
{
column.For(x => x.id).Hidden(true);
column.For(x => x.email).HeaderText("Email Address").Width("20%").Template("<input type='button' data-id='${email}' onclick='SendResetPasswordEmail(this);' value='Reset'/> ${email}");
column.For(x => x.firstname).HeaderText("First Name").Width("20%");
column.For(x => x.lastname).HeaderText("Last Name").Width("30%");
column.For(x => x.typeid).HeaderText("Type").Width("5%").FormatterFunction("lookupUserTypes");
})
.Features(feature =>
{
feature.Updating().EditMode(GridEditMode.RowEditTemplate).AddRowLabel("Add new User").RowEditDialogCaptionLabel("Edit User").ColumnSettings(cs =>
{
cs.ColumnSetting().ColumnKey("email").Required(true).Validation(true);
cs.ColumnSetting().ColumnKey("firstname").Required(true).EditorType(ColumnEditorType.Text);
cs.ColumnSetting().ColumnKey("lastname").Required(true);
cs.ColumnSetting().ColumnKey("typeid").EditorType(ColumnEditorType.Combo).Required(true).ComboEditorOptions(co => co.DataSource(northWindCategoriesJSON).ValueKey("typeid").TextKey("UserTypeName").Mode(ComboMode.DropDown).EnableClearButton(false));
});
feature.Sorting();
feature.Filtering();
feature.Paging();
})
.DataSourceUrl(Url.Action("GetUsers"))
.ResponseDataKey(null)
.UpdateUrl(Url.Action("UsersSaveData"))
.DataBind()
.Render()
)