How to apply simple hardcoded combobox selection of days of week drop down when user clicks to edit a cell

[Lyle]

I'm new to Telerik and still working on the 30 day trial so please bear with me, and pardon the ignorance if this is mind numbingly simple,

 

I need a simple way to show a simple hardcoded dropdown (Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday) which validates input when a user edits the cell of a RadGridView

      private void dg_DeliverySched_beginEdit(object sender, Telerik.WinControls.UI.GridViewCellCancelEventArgs e)
        {
            //I have these columns that need day of week validation comboboxes on edit click
            if (e.Row is GridViewFilteringRowInfo && e.Column.Name == "Sun")
            {
                e.Cancel = true;
            }
            if (e.Row is GridViewFilteringRowInfo && e.Column.Name == "Mon")
            {
                e.Cancel = true;
            }
            if (e.Row is GridViewFilteringRowInfo && e.Column.Name == "Tue")
            {
                e.Cancel = true;
            }
            if (e.Row is GridViewFilteringRowInfo && e.Column.Name == "Wed")
            {
                e.Cancel = true;
            }
            if (e.Row is GridViewFilteringRowInfo && e.Column.Name == "Thu")
            {
                e.Cancel = true;
            }
            if (e.Row is GridViewFilteringRowInfo && e.Column.Name == "Fri")
            {
                e.Cancel = true;
            }
            if (e.Row is GridViewFilteringRowInfo && e.Column.Name == "Sat")
            {
                e.Cancel = true;
            }
        }

[Todor]

Hi Lyle,

Thank you for writing.

If you are using GridViewTextBoxColumn you can subscribe to the EditorRequired event and substitute the TextBoxEditor with a RadDropDownListEditor. After this subscribe to the CellEditorInitialized event and set up the desired values of the combo editor:

this.radGridView1.EditorRequired += this.RadGridView1_EditorRequired;
this.radGridView1.CellEditorInitialized += this.RadGridView1_CellEditorInitialized;

private void RadGridView1_EditorRequired(object sender, EditorRequiredEventArgs e)
{
    if (this.radGridView1.CurrentColumn.Name == "Day")
    {
        e.EditorType = typeof(RadDropDownListEditor);
    }
}

private void RadGridView1_CellEditorInitialized(object sender, GridViewCellEventArgs e)
{
    if (this.radGridView1.CurrentColumn.Name == "Day")
    {
        RadDropDownListEditor comboBoxEditor = e.ActiveEditor as RadDropDownListEditor;
        if (comboBoxEditor != null)
        {
            RadDropDownListElement element = (RadDropDownListElement)comboBoxEditor.EditorElement;
            element.DropDownStyle = Telerik.WinControls.RadDropDownStyle.DropDownList;
            element.DataSource = new List<string>() { "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday" };
            element.SelectedValue = e.Value;
        }
    }
}

The result is illustrated in the picture below:


More information about RadGridView editors is available here:  https://docs.telerik.com/devtools/winforms/controls/gridview/editors/editors

I hope this information helps. If you need further assistance please do not hesitate to contact me.

Regards,
Todor Vyagov
Progress Telerik