sourcegrid 应用实例（全部来自官网下载的例子）——Advanced Data Binding - different Views, images and tooltip

源码：

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;

namespace WindowsFormsSample
{
/// <summary>
/// Summary description for frmSample9.
/// </summary>
[Sample("SourceGrid - Extensions", 41, "Advanced Data Binding - different Views, images and tooltip")]
public class frmSample41 : System.Windows.Forms.Form
{
private SourceGrid.DataGrid dataGrid;
private Label label1;
private Label lblSelectedRow;
private Button btFind;
private TextBox txtFindName;
private Label label2;
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.Container components = null;

public frmSample41()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();
}

/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if(components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}

#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.dataGrid = new SourceGrid.DataGrid();
this.label1 = new System.Windows.Forms.Label();
this.lblSelectedRow = new System.Windows.Forms.Label();
this.btFind = new System.Windows.Forms.Button();
this.txtFindName = new System.Windows.Forms.TextBox();
this.label2 = new System.Windows.Forms.Label();
this.SuspendLayout();
//
// dataGrid
//
this.dataGrid.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom)
| System.Windows.Forms.AnchorStyles.Left)
| System.Windows.Forms.AnchorStyles.Right)));
this.dataGrid.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
this.dataGrid.DefaultWidth = 20;
this.dataGrid.DeleteQuestionMessage = "Are you sure to delete all the selected rows?";
this.dataGrid.FixedRows = 1;
this.dataGrid.Location = new System.Drawing.Point(5, 32);
this.dataGrid.Name = "dataGrid";
this.dataGrid.SelectionMode = SourceGrid.GridSelectionMode.Row;
this.dataGrid.Size = new System.Drawing.Size(490, 202);
this.dataGrid.TabIndex = 15;
this.dataGrid.TabStop = true;
this.dataGrid.ToolTipText = "";
//
// label1
//
this.label1.AutoSize = true;
this.label1.Location = new System.Drawing.Point(1, 10);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(83, 12);
this.label1.TabIndex = 16;
this.label1.Text = "Selected Row:";
//
// lblSelectedRow
//
this.lblSelectedRow.AutoSize = true;
this.lblSelectedRow.Location = new System.Drawing.Point(102, 9);
this.lblSelectedRow.Name = "lblSelectedRow";
this.lblSelectedRow.Size = new System.Drawing.Size(11, 12);
this.lblSelectedRow.TabIndex = 17;
this.lblSelectedRow.Text = "-";
//
// btFind
//
this.btFind.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
this.btFind.Location = new System.Drawing.Point(405, 1);
this.btFind.Name = "btFind";
this.btFind.Size = new System.Drawing.Size(90, 25);
this.btFind.TabIndex = 18;
this.btFind.Text = "Find";
this.btFind.UseVisualStyleBackColor = true;
this.btFind.Click += new System.EventHandler(this.btFind_Click);
//
// txtFindName
//
this.txtFindName.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
this.txtFindName.Location = new System.Drawing.Point(278, 3);
this.txtFindName.Name = "txtFindName";
this.txtFindName.Size = new System.Drawing.Size(120, 21);
this.txtFindName.TabIndex = 19;
//
// label2
//
this.label2.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
this.label2.AutoSize = true;
this.label2.Location = new System.Drawing.Point(186, 6);
this.label2.Name = "label2";
this.label2.Size = new System.Drawing.Size(83, 12);
this.label2.TabIndex = 20;
this.label2.Text = "Find country:";
//
// frmSample41
//
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(500, 242);
this.Controls.Add(this.label2);
this.Controls.Add(this.txtFindName);
this.Controls.Add(this.btFind);
this.Controls.Add(this.lblSelectedRow);
this.Controls.Add(this.label1);
this.Controls.Add(this.dataGrid);
this.Name = "frmSample41";
this.Text = "Advanced DataGrid binding (XML DataSet)";
this.Load += new System.EventHandler(this.frmSample41_Load);
this.ResumeLayout(false);
this.PerformLayout();

}
#endregion

private DataView mView;
private void frmSample41_Load(object sender, System.EventArgs e)
{
//Read Data From xml
DataSet ds = new DataSet();
System.IO.Stream stream = System.Reflection.Assembly.GetExecutingAssembly().GetManifestResourceStream("WindowsFormsSample.GridSamples.SampleData2.xml");
ds.ReadXml(stream);
mView = ds.Tables[0].DefaultView;
mView.AllowDelete = false;
mView.AllowNew = false;

dataGrid.FixedColumns = 1;

DevAge.ComponentModel.IBoundList bd = new DevAge.ComponentModel.BoundDataView(mView);

//Create default columns
CreateColumns(bd);

dataGrid.DataSource = bd;

dataGrid.AutoSizeCells();

dataGrid.Selection.SelectionChanged += new SourceGrid.RangeRegionChangedEventHandler(Selection_SelectionChanged);
}

void Selection_SelectionChanged(object sender, SourceGrid.RangeRegionChangedEventArgs e)
{
object[] rows = dataGrid.SelectedDataRows;
if (rows != null && rows.Length > 0)
{
DataRowView row = (DataRowView)rows[0];

lblSelectedRow.Text = row["Country"].ToString();
}
}

private void CreateColumns(DevAge.ComponentModel.IBoundList boundList)
{
//Create the editors
SourceGrid.Cells.Editors.TextBoxNumeric numericEditor = new SourceGrid.Cells.Editors.TextBoxNumeric(typeof(decimal));
numericEditor.TypeConverter = new DevAge.ComponentModel.Converter.NumberTypeConverter(typeof(decimal), "N");
numericEditor.AllowNull = true; //the database value can be null (System.DbNull)

SourceGrid.Cells.Editors.ComboBox externalIdEditor = new SourceGrid.Cells.Editors.ComboBox(typeof(int));
externalIdEditor.StandardValues = new int[]{1, 2, 3, 4};
externalIdEditor.StandardValuesExclusive = true;
externalIdEditor.Control.FormattingEnabled = true;

DevAge.ComponentModel.Validator.ValueMapping mapping = new DevAge.ComponentModel.Validator.ValueMapping();
mapping.ValueList = new int[]{1, 2, 3, 4};
mapping.DisplayStringList = new string[] { "Reference 1", "Reference 2", "Reference 3", "Reference 4" };
mapping.BindValidator(externalIdEditor);

//Create the views
SourceGrid.Cells.Views.Cell viewSelected = new SourceGrid.Cells.Views.Cell();
viewSelected.Font = new Font(dataGrid.Font, FontStyle.Bold);
viewSelected.ForeColor = Color.DarkGreen;

//Create selected conditions
SourceGrid.Conditions.ConditionView selectedConditionBold = new SourceGrid.Conditions.ConditionView(viewSelected);
selectedConditionBold.EvaluateFunction = delegate(SourceGrid.DataGridColumn column, int gridRow, object itemRow)
{
DataRowView row = (DataRowView)itemRow;
return row["Selected"] is bool && (bool)row["Selected"] == true;
};
SourceGrid.Conditions.ConditionCell selectedConditionStar = new SourceGrid.Conditions.ConditionCell(new SourceGrid.Cells.Virtual.CellVirtual());
selectedConditionStar.Cell.Model.AddModel(new SourceGrid.Cells.Models.Image(Properties.Resources.Star.ToBitmap()));
selectedConditionStar.EvaluateFunction = delegate(SourceGrid.DataGridColumn column, int gridRow, object itemRow)
{
DataRowView row = (DataRowView)itemRow;
return row["Selected"] is bool && (bool)row["Selected"] == true;
};

//Create columns
SourceGrid.DataGridColumn gridColumn;

gridColumn = dataGrid.Columns.Add("Selected", "Selected", typeof(bool));

gridColumn = dataGrid.Columns.Add("Country", "Country", typeof(string));
gridColumn.DataCell.Model.AddModel(new BoundImage("Uniform"));
gridColumn.Conditions.Add(selectedConditionBold);

gridColumn = dataGrid.Columns.Add("Uniform", "Uniform", new SourceGrid.Cells.DataGrid.Image());
gridColumn.Conditions.Add(selectedConditionBold);

gridColumn = dataGrid.Columns.Add("Population", "Population", numericEditor);
gridColumn.Conditions.Add(selectedConditionBold);

gridColumn = dataGrid.Columns.Add("Surface", "Surface", numericEditor);
gridColumn.Conditions.Add(selectedConditionBold);

gridColumn = dataGrid.Columns.Add("ExternalID", "ExternalID", externalIdEditor);
gridColumn.Conditions.Add(selectedConditionBold);

gridColumn = dataGrid.Columns.Add("Star", "Star", new SourceGrid.Cells.Virtual.CellVirtual());
gridColumn.DataCell.Model.AddModel(new SourceGrid.Cells.Models.Image(Properties.Resources.StarOff));
gridColumn.Conditions.Add(selectedConditionStar);

foreach (SourceGrid.DataGridColumn col in dataGrid.Columns)
{
col.DataCell.AddController(SourceGrid.Cells.Controllers.ToolTipText.Default);
col.DataCell.Model.AddModel(MyToolTipModel.Default);
}
}

public class BoundImage : SourceGrid.Cells.Models.IImage
{
private string imageProperty;
public BoundImage(string imageProperty)
{
this.imageProperty = imageProperty;
}

public System.Drawing.Image GetImage(SourceGrid.CellContext cellContext)
{
SourceGrid.DataGrid dg = (SourceGrid.DataGrid)cellContext.Grid;
int dsRow = dg.Rows.IndexToDataSourceIndex(cellContext.Position.Row);
PropertyDescriptor property = dg.DataSource.GetItemProperty(imageProperty, StringComparison.InvariantCultureIgnoreCase);
byte[] buffer = (byte[])dg.DataSource.GetItemValue(dsRow, property);

using (System.IO.MemoryStream stream = new System.IO.MemoryStream(buffer))
{
return System.Drawing.Image.FromStream(stream);
}
}
}

private class MyToolTipModel : SourceGrid.Cells.Models.IToolTipText
{
public static readonly MyToolTipModel Default = new MyToolTipModel();

public string GetToolTipText(SourceGrid.CellContext cellContext)
{
SourceGrid.DataGrid grid = (SourceGrid.DataGrid)cellContext.Grid;
DataRowView row = (DataRowView)grid.Rows.IndexToDataSourceRow(cellContext.Position.Row);
if (row != null)
{
if (bool.Equals(row["Selected"], true))
return "Row " + cellContext.Position.Row.ToString() + " is selected";
else
return "Row " + cellContext.Position.Row.ToString() + " is NOT selected";
}
else
return string.Empty;
}
}

private void btFind_Click(object sender, EventArgs e)
{
mView.Sort = "Country";
int findRowIndex = mView.Find(txtFindName.Text);
if (findRowIndex >= 0)
dataGrid.SelectedDataRows = new object[] { mView[findRowIndex] };
else
MessageBox.Show(this, "Country not found");
}
}
}