BoldSignEasily embed eSignatures in your .NET applications. Free sandbox with native SDK available.
this.gridGroupingControl1.TableDescriptor.Columns[1].Width = 250;
If you have a way of determining the size that you want to see for the cell, then setting GridColumnDescriptor.Width property will be the simplest thing to do.
I know of no straight-forward .NET Framework methods that will allow you to compute the size of RTF. Here is a forum post that has an InPlaceRichTextBox cell control that has an attempt at supportting autosizing. If you need teh autosize calculation to try to perfectly set GridColumnDescriptor.Width, then you coul dtry using the technique from that sample.
http://www.syncfusion.com/Support/Forums/message.aspx?MessageID=15023
private void button1_Click(object sender, System.EventArgs e) { DataSet ds = new DataSet(); ds.ReadXml("data1.xml"); this.gridGroupingControl1.DataSource = ds.Tables[0]; Application.DoEvents(); this.gridGroupingControl1.TableDescriptor.Columns[1].Appearance.AnyRecordFieldCell.CellType = "RichText"; this.gridGroupingControl1.TableDescriptor.Columns[1].Appearance.AnyRecordFieldCell.BackColor = Color.LightGoldenrodYellow; }This shows up OK for me in your sample without explicitly setting the colwidth. If you want to set the colwidth, then call another Apllication.DoEvents so all the settings get applied.
private void button1_Click(object sender, System.EventArgs e) { DataSet ds = new DataSet(); ds.ReadXml("data1.xml"); this.gridGroupingControl1.DataSource = ds.Tables[0]; Application.DoEvents(); this.gridGroupingControl1.TableDescriptor.Columns[1].Appearance.AnyRecordFieldCell.CellType = "RichText"; this.gridGroupingControl1.TableDescriptor.Columns[1].Appearance.AnyRecordFieldCell.BackColor = Color.LightGoldenrodYellow; Application.DoEvents(); this.gridGroupingControl1.TableDescriptor.Columns[1].Width = 200; }