Hi,

In a markup for Custom column I have

<eo:CustomColumn>
<EditorTemplate>
<select id="ApplySort_ddl">
<asp:Repeater runat="server" ID="ApplySort">
<ItemTemplate>
<option value="<%#DataBinder.Eval(Container.DataItem, "Code")%>">
<%#DataBinder.Eval(Container.DataItem, "Description")%>
</option>
</ItemTemplate>
</asp:Repeater>
</select>
</EditorTemplate>
</eo:CustomColumn>

How to populate EditorTemplate from c# code?

EO.Web.CustomColumn cc = new EO.Web.CustomColumn();
cc.Width = 160;
cc.DataField = "ApplySort";
cc.HeaderText = "Sort by";
cc.Name = "ApplySort";
cc.DataType = EO.Web.GridColumnDataType.Integer;
cc.ClientSideBeginEdit = "on_begin_edit_ApplySort";
cc.ClientSideEndEdit = "on_end_edit_ApplySort";
cc.ClientSideGetText = "on_column_gettext_ApplySort";
cc.EditorTemplate = ????
Grid1.Columns.Add(cc);

Thanks in advance
Michael

Hi,

Thanks, I implemented ITemplate interface like

public class DropDownListTemplate : ITemplate
{
private string aName = "";
DropDownList ddl = null;

public DropDownListTemplate(string name)
{ aName = name; }

public void InstantiateIn(System.Web.UI.Control container)
{
ddl = new DropDownList();
ddl.ID = aName;
ddl.Items.Add(“Test 1”);
ddl.Items.Add(“Test 2”);
container.Controls.Add(ddl);
}
}

On Page_init dynamically created columns:

protected void Page_Init(object sender, EventArgs e)
{
if (!IsPostBack)
{
Grid1.Columns.Clear();

EO.Web.RowNumberColumn rnc = new EO.Web.RowNumberColumn();
Grid1.Columns.Add(rnc);

EO.Web.CustomColumn cc = new EO.Web.CustomColumn();
cc.DataField = "ApplySort";
cc.HeaderText = "Sort by";
cc.Name = "ApplySort";
cc.DataType = EO.Web.GridColumnDataType.Integer;
cc.ClientSideBeginEdit = "on_begin_edit_ApplySort";
cc.ClientSideEndEdit = "on_end_edit_ApplySort";
cc.ClientSideGetText = "on_column_gettext_ApplySort";
cc.EditorTemplate = new DropDownListTemplate(“ApplySort_ddl”);
Grid1.Columns.Add(cc);
}
}

So DDL is dynamically created on Page_preload:

protected void Page_PreRender(object sender, EventArgs e)
{
if (!IsPostBack) {
Control cc = ((EO.Web.CustomColumn)Grid1.FindColumn("ApplySort")).EditorInstance;
String sScript = String.Concat("ddl=document.getElementById('", cc.Controls[0].ClientID, "');")
ScriptManager.RegisterStartupScript(… sScript …);
}
}
Everything works fine when page displays first time. After partial postback DDL disappears. What’s wrong in my action? Why EditorInstance returns null during PostBack?

Some code from markup:

<script>

var ddl = null;

function on_column_gettext_ApplySort(column, item, cellValue)
{
if (ddl == null) return cellValue;
else
{ … }
}
function on_begin_edit_ApplySort(cell)
{ … }

function on_end_edit_ApplySort(cell)
{ … }
</script>


Tnanks in advance
Michael

Hi,

Thanks. It works. I have two more questions:

1. I have Custom column with a Text Box and a Regular Expression Validator. How to prevent moving from this column after editing if Validator.isValid is false?

2. I need to return default value from on_begin_edit function for custom column in a case if I edit new row. Is there a way to know that editable cell/row is new one?

Thanks in advance
Michael