Hi,
I have a WebDataGrid with a programmatically added template column, which contains a Button; everything works fine, except that the ItemCommand event does not fire when the user clicks the button.
Here is the code (I am using the webdatagrid in a CompositeContro, and setting DataSource and calling DataBind from the pagel):
public class MyGrid : CompositeControl { private WebDataGrid _grid = new WebDataGrid(); public MyGrid() { _grid.AutoGenerateColumns = false; _grid.Columns.Add(new TemplateDataField() { Key = "MyButtonTemplate", Width = Unit.Pixel(100) }); _grid.Columns[0].Header.Text = "my template"; ItemTemplate itemTemplate1 = new ItemTemplate(); itemTemplate1.Template = new ButtonTemplate(); _grid.Templates.Add(itemTemplate1); ((ItemTemplate)_grid.Templates[_grid.Templates.Count - 1]).TemplateID = "myTemplate"; EnsureChildControls(); } protected override void CreateChildControls() { base.CreateChildControls(); Controls.Add(_grid); } protected override void OnInit(EventArgs e) { base.OnInit(e); _grid.ItemCommand += _grid_ItemCommand; } void _grid_ItemCommand(object sender, HandleCommandEventArgs e) { // not firing } protected override void OnLoad(EventArgs e) { base.OnLoad(e); ItemTemplate itemTemplate = (ItemTemplate)_grid.Templates[0]; for (int i = 0; i < _grid.Rows.Count; i++) { _grid.Rows[i].Items.FindItemByKey("MyButtonTemplate").Template = itemTemplate.Template; } } public DataTable DataSource { get { return _grid.DataSource as DataTable; } set { _grid.DataSource = value; } } }
The event fires when I create the template column directly in the grid definition (aspx).
How can I solve my problem?
Thanks in advance,
Giovanni
Hi zangrossi,
Thank you for posting in the community.
I have been looking into the behavior that you have described and I can suggest you to set the ItemTemplate using the following syntax:
_grid.Columns.Add(new TemplateDataField()
{
Key = "MyButtonTemplate",
Width = Unit.Pixel(100),
ItemTemplate = new CustomItemTemplate()
});
And create the CustomItemTemplate class – for example:
public class CustomItemTemplate : ITemplate
#region ITemplate Members
public void InstantiateIn(Control container)
LinkButton edit = new LinkButton();
edit.CssClass = "LinkButton";
edit.Text = "Edit";
edit.OnClientClick = "return editRow()";
container.Controls.Add(edit);
}
#endregion
For more information about dynamically adding ItemTemplates check the following link - http://help.infragistics.com/Help/NetAdvantage/ASPNET/2011.2/CLR4.0/html/WebDataGrid_Using_Item_Template.html. I tested your code with these modifications and the ItemCommand fired.
Please let me know if this helps.
Feel free to contact me if you have any questions.
Hi Nikolay,
I tried your code, but I have a javascript error on the editRow() function call....
Ok, I've called the editRow() on the correct javascript object. My onClientClick property is now set with:
"return document.getElementById('###internalGridId###').editRow();"
where ###internalGridId### is the webdatagrid clientId (I am wrapping the webdatagrid in another control). Now the problem is that the ' character is rendered as " and the js code throws an exception... I've tried using \', \", anything... any ideas?
Hello zangrossi,
I'm just checking if you have resolved your issue.
You could try the following approach:
edit.OnClientClick = "editRow()";
And then in editRow function get the grid using this line:
var grid = $find("<%= WebDataGrid.ClientID %>");
Let me know if this helps.