无法将类型'system.reflection.fieldinfo'隐式转换为'devexpress.dataaccess.excel.fieldinfo'

Question

Error Image

thanks in advance to everyone.... i'm using devexpress xtragridcontrol to display data according to the rows hight. but got problem that, cannot implicitly convert type system.reflection.fieldinfo to devexpress.dataaccess.excel.fieldinfo, any suggestion...

here is my code

private void UpdateGridSize()
{
    GridViewInfo viewInfo = (GridViewInfo)gridView2.GetViewInfo();
    DevExpress.DataAccess.Excel.FieldInfo fi = typeof(GridView).GetField("scrollInfo", BindingFlags.Instance | BindingFlags.NonPublic);
    ScrollInfo scrollInfo = (ScrollInfo)fi.GetValue(gridView2);
    int width = viewInfo.ViewRects.IndicatorWidth;
    foreach (GridColumn column in gridView1.VisibleColumns)
    {
        if (viewInfo.GetColumnLeftCoord(column) < viewInfo.ViewRects.ColumnPanelWidth)
            gridView1.LeftCoord = width;
        width += viewInfo.ColumnsInfo[column].Bounds.Width;
    }
    if (scrollInfo.VScrollVisible) width += scrollInfo.VScrollSize;
    int height = viewInfo.CalcRealViewHeight(new Rectangle(0, 0, ClientSize.Width, ClientSize.Height), true);
    if (scrollInfo.HScrollVisible) height += scrollInfo.HScrollSize;
    width = Math.Max(GridMinWidth, width);
    width = Math.Min(ClientSize.Width - gridControl1.Location.X, width);
    height = Math.Max(GridMinHeight, height);
    height = Math.Min(ClientSize.Height - gridControl1.Location.Y, height);
    gridControl1.Size = new Size(width, height);
    gridView1.LayoutChanged();
}

Answer 1

The reflection and DevExpress FieldInfo types are not related and therefore not assignment compatible. Create a new object and assign the values

var fieldInfo = typeof(GridView).GetField("scrollInfo",
    BindingFlags.Instance | BindingFlags.NonPublic); // Reflection

var fi = new DevExpress.DataAccess.Excel.FieldInfo {
    Name = fieldInfo.Name, Type = fieldInfo.MemberType
};

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Or did you mean to do something like this:

viewInfo.GetField(...)

instead of

typeof(GridView).GetField(

---

According to DevExpress the class GridViewInfo is not documented and subject to changes

This class is not documented, because it describes the internal visual grid presentation, which can be dynamically changed depending on development requirements. We tend to prevent our customers from using this class.