FilterBar can the boxes to enter criteria not be hidden until clicked?

[J]

I want my users to be able to see that there is a spot to enter the criteria for the filter without having to know to click on the empty space and a box will appear. Is there a simple way to show those boxes to the users even when they do not have focus?

[Dimitar]

Hi J,

Thank you for writing.

This can be achieved by creating a custom cell which contains a textbox:

public class MyFilterCell : GridFilterCellElement
{
    public MyFilterCell(GridViewDataColumn column, GridRowElement row) : base(column, row)
    {
    }

    RadTextBoxElement textbox;

    protected override void CreateChildElements()
    {
        base.CreateChildElements();
        textbox = new RadTextBoxElement();
        textbox.MinSize = new Size(50, 20);
        textbox.Alignment = ContentAlignment.MiddleCenter;
        textbox.TextChanged += textbox_TextChanged;
        this.Children.Add(textbox);
    }

    void textbox_TextChanged(object sender, EventArgs e)
    {
        this.Value = textbox.Text;
    }

    protected override SizeF ArrangeOverride(SizeF finalSize)
    {
        SizeF s = base.ArrangeOverride(finalSize);
        this.textbox.Arrange(new RectangleF(Children[1].DesiredSize.Width + 1, 3, 50,20));
        return s;
    }
    public override bool IsCompatible(GridViewColumn data, object context)
    {
        bool result =data is  GridViewDataColumn &&
               !(data is GridViewCheckBoxColumn) &&
               !(data is GridViewComboBoxColumn) &&
               !(data is GridViewDecimalColumn) &&
               !(data is GridViewDateTimeColumn) &&
               context is GridFilterRowElement;

        return result;
    }

}

The following code snippet shows how you can replace the default filter cell. In addition you can disable the showing of the editor for these cells:

void radGridView1_CellBeginEdit(object sender, GridViewCellCancelEventArgs e)
{
    if (e.Row is GridViewFilteringRowInfo && e.Column is GridViewTextBoxColumn)
    {
        e.Cancel = true;
    }
}

void radGridView1_CreateCell(object sender, GridViewCreateCellEventArgs e)
{
    if (e.CellType == typeof(GridFilterCellElement) && e.Column is GridViewTextBoxColumn)
    {
        e.CellElement = new MyFilterCell(e.Column as GridViewDataColumn, e.Row);
    }
}

I hope this helps.

Regards,
Dimitar
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