Dynamic insert with custom data binding values

[Michael Gois]

Hi
I have a grid control which uses a template for the editing/inserting. In my template, I have my own user control which has a property which is usually databound.
When inserting by pressing the insert command in the grid command item template, I look out for the InitInsertCommandName, and create some default values for the insert template, like so:

protected void radApprovers_ItemCommand(object source, GridCommandEventArgs e)
       {
            if (e.CommandName == RadGrid.InitInsertCommandName)
            {
                // Cancel the default operation
                e.Canceled = true;
                //Prepare an IDictionary with the predefined values
                System.Collections.Specialized.ListDictionary newValues = new System.Collections.Specialized.ListDictionary();
                newValues["company_id"] = cmbCompaniesFilter.SelectedCompanyId;         
                //Insert the item and rebind
                e.Item.OwnerTableView.InsertItem(newValues);
            }
}

As you can see, I'm setting the default values for the column company_id. Here's the problem:
I want to put the grid into insert mode dynamically (which I'm doing through a page url request variable). I'm using the following code to do so:

System.Collections.Specialized.ListDictionary newValues = new System.Collections.Specialized.ListDictionary();
 newValues["account_id"] = SessionManager.GetAccountId(this);
newValues["company_id"] = cmbCompaniesFilter.SelectedCompanyId;
gridApprovers.MasterTableView.IsItemInserted = true;
gridApprovers.MasterTableView.InsertItem(newValues);

The problem is that when I call InsertItem(newValues) I get the following error:
"Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control.". I have to set a value here, otherwise it tries to bind a DBNull to an integer property, which will raise a "Specified cast is not valid" error when it binds.

Can you please tell me how I can go about dynamically creating databinding values when dynamically setting the grid into Insert mode?
Thanks

[Tsvetoslav]

Hi Michael Gois,

Could you provide your aspx and code behind (please, use the Code Formatter tool of the editor) since I was not able to reproduce the problem as evidenced by the small sample I am sending you.

Thank you.

Best Regards,
Tsvetoslav
the Telerik team

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