Further to the previous post showing the creation of a simple table, this shows how to add a column that contains a preview image of a particular block definition.
I had to modify the code somewhat to open the block table sooner than we did before (I tend not to leave it open for longer than I have to, but in this case we want to check it for appropriate block definitions earlier on, while we're creating the table). Then I added a simple check, to see whether a block definition corresponding to our "name" field exists for a particular row, and if so, we add a reference to the block table record in the 4th column of the table.
Here's the updated C# code:
using Autodesk.AutoCAD.ApplicationServices;
using Autodesk.AutoCAD.DatabaseServices;
using Autodesk.AutoCAD.EditorInput;
using Autodesk.AutoCAD.Geometry;
using Autodesk.AutoCAD.Runtime;
namespace TableCreation
{
public class Commands
{
[CommandMethod("CRT")]
static public void CreateTable()
{
Document doc =
Application.DocumentManager.MdiActiveDocument;
Database db = doc.Database;
Editor ed = doc.Editor;
PromptPointResult pr =
ed.GetPoint("\nEnter table insertion point: ");
if (pr.Status == PromptStatus.OK)
{
Transaction tr =
doc.TransactionManager.StartTransaction();
using (tr)
{
BlockTable bt =
(BlockTable)tr.GetObject(
doc.Database.BlockTableId,
OpenMode.ForRead
);
Table tb = new Table();
tb.TableStyle = db.Tablestyle;
tb.NumRows = 5;
// Added an additional column for the block image
tb.NumColumns = 4;
tb.SetRowHeight(3);
tb.SetColumnWidth(15);
tb.Position = pr.Value;
// Create a 2-dimensional array
// of our table contents
string[,] str = new string[5, 3];
str[0, 0] = "Part No.";
str[0, 1] = "Name ";
str[0, 2] = "Material ";
str[1, 0] = "1876-1";
str[1, 1] = "Flange";
str[1, 2] = "Perspex";
str[2, 0] = "0985-4";
str[2, 1] = "Bolt";
str[2, 2] = "Steel";
str[3, 0] = "3476-K";
str[3, 1] = "Tile";
str[3, 2] = "Ceramic";
str[4, 0] = "8734-3";
str[4, 1] = "Kean";
str[4, 2] = "Mostly water";
// Use a nested loop to add and format each cell
for (int i = 0; i < 5; i++)
{
for (int j = 0; j < 3; j++)
{
tb.SetTextHeight(i, j, 1);
tb.SetTextString(i, j, str[i, j]);
tb.SetAlignment(i, j, CellAlignment.MiddleCenter);
}
// If a block definition exists for a block of our
// "name" field, then let's set it in the 4th column
if (bt.Has(str[i, 1]))
{
tb.SetBlockTableRecordId(i, 3, bt[str[i, 1]], true);
}
}
tb.GenerateLayout();
BlockTableRecord btr =
(BlockTableRecord)tr.GetObject(
bt[BlockTableRecord.ModelSpace],
OpenMode.ForWrite
);
btr.AppendEntity(tb);
tr.AddNewlyCreatedDBObject(tb, true);
tr.Commit();
}
}
}
}
}
And here's what you see if you run the CRT command with some blocks in the current drawing called "FLANGE", "TILE", "BOLT" and "KEAN":
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