GridControl 合并单元格

修改GridView的OptionsView.AllowCellMerge属性为True；

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gridView.OptionsView.AllowCellMerge == true;

在GridView控件的CellMerge事件中加入以下方法：

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private void gridView1_CellMerge(object sender, DevExpress.XtraGrid.Views.Grid.CellMergeEventArgs e)
{
    if (e.Column.FieldName == "docKey" || e.Column.FieldName == "docCaption") //docKey和docCaption为需要合并单元格的列
    {
        DevExpress.XtraGrid.Views.Grid.GridView gridView = sender as DevExpress.XtraGrid.Views.Grid.GridView;
        if (gridView != null)
        {
            string value1 = (string)gridView_FillInParam.GetRowCellValue(e.RowHandle1, e.Column);
            string value2 = (string)gridView_FillInParam.GetRowCellValue(e.RowHandle2, e.Column);
            e.Merge = value1 == value2;//是否执行合并的条件
            e.Handled = true;
        }
    }
    else
    {
        e.Merge = false;
        e.Handled = true;
    }
}

另：

Appearance.HorzLine.BackColor 水平线颜色

Appearance.VertLine.BackColor 竖直线颜色

GridControl 添加下拉框控件

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if (caption != null && caption is List<string>)
{
    List<string> captionLst = caption as List<string>;
    RepositoryItemComboBox repositoryItemComboBox = new RepositoryItemComboBox();
    repositoryItemComboBox.Items.AddRange(captionLst);
    repositoryItemComboBox.TextEditStyle = DevExpress.XtraEditors.Controls.TextEditStyles.DisableTextEditor; //不可输入
    //GridControl
    //gridView.Columns[dataColumn.ColumnName].Properties.RowEdit = repositoryItemComboBox;
    //VGridControl
    vGridControl_Info.Rows["row" + dataColumn.ColumnName].Properties.RowEdit = repositoryItemComboBox;
}

}