public object GetCellValue(object value, int rowIndex, int columnIndex, VirtualGridViewInfo viewInfo)
{
VirtualGridCellValueNeededEventArgs args = new VirtualGridCellValueNeededEventArgs(rowIndex, columnIndex, viewInfo);
this.OnCellValueNeeded(args);
return(args.Value);
}
protected override void UpdateInfo(VirtualGridCellValueNeededEventArgs args)
{
this.Value = this.ViewInfo.NewRowValues.ContainsKey(this.ColumnIndex) ? this.ViewInfo.NewRowValues[this.ColumnIndex] : (object)null;
this.FieldName = args.FieldName;
this.FormatString = args.FormatString;
this.Text = string.Format(this.FormatString, this.Value);
this.IsPinned = true;
}
protected override void UpdateInfo(VirtualGridCellValueNeededEventArgs args)
{
base.UpdateInfo(args);
this.Text = String.Empty;
if (args.Value is byte)
{
this.ratingElement.Value = (byte)args.Value;
}
}
protected override void UpdateInfo(VirtualGridCellValueNeededEventArgs args)
{
base.UpdateInfo(args);
this.TextAlignment = ContentAlignment.MiddleLeft;
if (this.Value == null)
{
this.Text = "No Color";
}
}
protected override void UpdateInfo(VirtualGridCellValueNeededEventArgs args)
{
base.UpdateInfo(args);
//约定使用ID列构建Cell，传递ID值
if (args.FieldName == "ID" && args.Value is int)
{
this.Value = args.Value;
}
this.Text = string.Empty;
}
protected override void UpdateInfo(VirtualGridCellValueNeededEventArgs args)
{
base.UpdateInfo(args);
if (args.Value is bool)
{
this.checkBox.Checked = (bool)args.Value;
}
this.Text = String.Empty;
}
void gridView_CellValueNeeded(object sender, VirtualGridCellValueNeededEventArgs e)
{
if (e.ColumnIndex < 0)
{
return;
}
if (e.RowIndex == RadVirtualGrid.HeaderRowIndex)
{
e.Value = columnNames[e.ColumnIndex];
}
if (e.RowIndex >= 0 && e.RowIndex < dataSource.Count)
{
e.Value = dataSource[e.RowIndex].GetData(e.ColumnIndex);
}
}
private void radVirtualGrid1_CellValueNeeded(object sender, VirtualGridCellValueNeededEventArgs e)
{
if (e.ColumnIndex < 0)
{
return;
}
if (e.RowIndex == RadVirtualGrid.HeaderRowIndex)
{
e.Value = this.columns[e.ColumnIndex];
}
if (e.RowIndex < 0)
{
return;
}
e.FieldName = this.fields[e.ColumnIndex];
e.Value = this.nwindDataSet.Products.Rows[e.RowIndex][e.FieldName];
e.FieldName = this.fields[e.ColumnIndex];
e.Value = this.nwindDataSet.Products.Rows[e.RowIndex][e.FieldName];
}
protected virtual void radListView1_CellValueNeeded(object sender, VirtualGridCellValueNeededEventArgs e)
{
}
