I am using a DevExpress grid and I Would like to display a tooltip for each cell as I hover the cursor over it. I have written a code for that. It works fine and show tool-tips. But the tool tip is not changing while I'm moving the cursor on the same row. (Moving Horizontally). But if I leave the current row and come back, then the tool tip changes. Please advise me. Here is the code for "toolTipController" (I have copied the whole method for a better understanding)
private void toolTipController1_GetActiveObjectInfo(object sender, ToolTipControllerGetActiveObjectInfoEventArgs e) { bool validColumn = false; if (e.SelectedControl != gridControl1) return; GridHitInfo hitInfo = gridView1.CalcHitInfo(e.ControlMousePosition); if (hitInfo.InRow == false) return; if (hitInfo.Column == null) return; //concern only the following fields if (hitInfo.Column.FieldName == "Monday" || hitInfo.Column.FieldName == "Tuesday" || hitInfo.Column.FieldName == "Wednesday" || hitInfo.Column.FieldName == "Thursday" || hitInfo.Column.FieldName == "Friday") validColumn = true; if (!validColumn) return; string toolTip = string.Empty; SuperToolTipSetupArgs toolTipArgs = new SuperToolTipSetupArgs(); toolTipArgs.Title.Text = string.Empty; //Get the data from this row string columnCaption = hitInfo.Column.Caption; DateTime dateOK = new DateTime(2000,1,1); if (DateTime.TryParse(columnCaption, out dateOK)) { DateTime date = DateTime.Parse(columnCaption); int row = hitInfo.RowHandle; long teacherID = long.Parse(gridView1.GetRowCellValue(row, "TeacherID").ToString()); GuaranteedDay gDay = db.GuaranteedDays.Where(p => p.Date == date && p.TeacherID == teacherID && p.Type == 5).FirstOrDefault(); if (gDay != null) { if (gDay.Note != string.Empty) { //Set description for the tool-tip string description = string.Empty; int type = gDay.Type; switch (type) { case 1: description = "guarantee offered"; break; case 2: description = "guaranteed"; break; case 3: description = "texted"; break; case 4: description = "available"; break; case 5: description = "unavailable"; break; } //Add Notes & description for the tool-tip toolTip = "Notes : " + gDay.Note + "\nDescription : " + description; string BodyText = toolTip; toolTipArgs.Contents.Text = BodyText; e.Info = new ToolTipControlInfo(); e.Info.Object = hitInfo.HitTest.ToString() + hitInfo.RowHandle.ToString(); e.Info.ToolTipType = ToolTipType.SuperTip; e.Info.SuperTip = new SuperToolTip(); e.Info.SuperTip.Setup(toolTipArgs); } } } } }
e.Info.Object = hitInfo.HitTest.ToString() + hitInfo.RowHandle.ToString() + hitInfo.Column.FieldName;
var
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