使用DevExpress，建立一个选择表。

 本程序的目标是使用DevExpress建立一个选择，设置元素的颜色的对话框。在程序中，有n个元素要设置颜色，选择要设置元素的，并且选颜色进行设置。

示意图如下：

 

代码如下：

 

    public partial class DlgThemeChart : Form
    ...{
        Field#region Field
        private GisAreaLayer _layer = null;
        private double _span = 30;
        private double _xSpan = 10;
        private ThemeType _myThemeType = ThemeType.isHistogram;

        private DataTable _sourceTable = new DataTable("Source");
        DevExpress.XtraEditors.Repository.RepositoryItemColorEdit repositoryItemColorEdit1 = new DevExpress.XtraEditors.Repository.RepositoryItemColorEdit();

        private List<string> _attributesSelected = new List<string>();
        private List<Color> _colorsSelected = new List<Color>();

        readonly string _constShowString = "isShow";
        readonly string _constAttributesString = "Attributes";
        readonly string _constColorString = "Color";

        #endregion

        Properties#region Properties
        public GisAreaLayer Layer ...{ get ...{ return _layer; } set ...{ _layer = value; } }
        public double Span ...{ get ...{ return _span; } }
        public double XSpan ...{ get ...{ return _xSpan; } }
        public List<string> AttributesSelected ...{ get ...{ return _attributesSelected; } }
        public List<Color> ColorsSelected ...{ get ...{ return _colorsSelected; } }
        public ThemeType MyThemeType ...{ get ...{ return _myThemeType; } }

        #endregion


        public DlgThemeChart()
        ...{
            InitializeComponent();            
        }

        private void DlgThemeChart_Load(object sender, EventArgs e)
        ...{
            InitGridView();
        }
        初始化GridView#region 初始化GridView
        private void InitGridView()
        ...{
            ModifySoureTable();
            FormatGridView();
            AddRowsToGradView();
            gridView1.RefreshEditor(true);
        }

        private void FormatGridView()
        ...{
            gridView1.OptionsCustomization.AllowFilter = false;
            gridView1.OptionsCustomization.AllowSort = false;
            gridView1.OptionsView.ShowGroupPanel = false;
            gridControl1.DataSource = _sourceTable.DefaultView;//连接数据表
            gridView1.PopulateColumns();

            gridView1.Columns[_constAttributesString].Caption = "字段名称";
            gridView1.Columns[_constShowString].Caption = "请选择";
            gridView1.Columns[_constColorString].Caption = "颜色设置";
            gridView1.Columns[_constColorString].ColumnEdit = repositoryItemColorEdit1;
        }

        private void ModifySoureTable()
        ...{
            _sourceTable.Columns.Add(_constAttributesString, typeof(string));//属性字段
            _sourceTable.Columns.Add(_constShowString, typeof(bool));//是否显示字段            
            _sourceTable.Columns.Add(_constColorString, typeof(Color));//颜色字段
        }

        private void AddRowsToGradView()
        ...{
            foreach (GisAttribute attribute in _layer.Attributes) ...{
                if ((attribute.Type.Equals(typeof(System.Int32)))
                    ||(attribute.Type.Equals(typeof(System.Int64)))
                    ||(attribute.Type.Equals(typeof(System.Double)))) ...{
                    DataRow row = _sourceTable.NewRow();
                    row[_constColorString] = Color.Red;
                    row[_constAttributesString] = attribute.Name;
                    row[_constShowString] = false;
                    _sourceTable.Rows.Add(row);
                }
            }
        }
        #endregion


        private void label1_Click(object sender, EventArgs e)
        ...{

        }

        private void btnOK_Click(object sender, EventArgs e)
        ...{

            GetColorsAndAttrs();
            if (AttributesSelected.Count == 0) ...{
                MessageBox.Show("请选择显示的项目");
                return;
            }

            if (!GetSpan()) ...{
                return;
            }

            DialogResult = DialogResult.OK;
        }

        private bool GetSpan()
        ...{
            try ...{
                _span = Convert.ToDouble(domainUpDownSpan.Text);
                if (_span < 0) ...{
                    throw new ArgumentOutOfRangeException();
                }
            } catch ...{
                MessageBox.Show("显示范围输入有误");
                return false;
            }

            try ...{
                _xSpan = Convert.ToDouble(domainUpDownXSpan.Text);
                if (_xSpan < 0) ...{
                    throw new ArgumentOutOfRangeException();
                }
            } catch ...{
                MessageBox.Show("底边长度有误");
                return false;
            }
            return true;
        }





        private void rBtnHistogram_CheckedChanged(object sender, EventArgs e)
        ...{
            _myThemeType = ThemeType.isHistogram;
            labelSpan.Text = "柱状图最高值:";
            labelXSpan.Visible = true;
            domainUpDownXSpan.Visible = true;
        }


        private void rBtnPie_CheckedChanged(object sender, EventArgs e)
        ...{
            _myThemeType = ThemeType.isPie;
            labelSpan.Text = "饼图最大半径";
            domainUpDownSpan.Text = "10";
            labelXSpan.Visible = false;
            domainUpDownXSpan.Visible = false;

        }

        private void GetColorsAndAttrs()
        ...{
            _attributesSelected.Clear();
            _colorsSelected.Clear();
            for (int i = 0; i < _sourceTable.Rows.Count; i++) ...{
                if (true == (bool)_sourceTable.Rows[i][_constShowString]) ...{
                    _attributesSelected.Add(_sourceTable.Rows[i][_constAttributesString].ToString());
                    _colorsSelected.Add((Color)(_sourceTable.Rows[i][_constColorString]));
                }
            }
        }

    }