Starting from a text file I need to:
1. Import this text file into a Data Table
2. Browse the data rows and in some case add an extra row
3. Convert this DT to a List
4. Display either the list or the DT in a datagrid (via a button click)
My code works well in step 1 and 4 but skip the 2 and 3
Unable to find why steps 2 and 3 are ignored
Here comes the C# method
private ICollection CreateDataSource_vNodes() // vNodes { //Create new DataTables and Rows DataTable dt_vNodes = new DataTable(); DataRow dr; // Create columns with headers dt_vNodes.Columns.Add("IdNumber", typeof(int)); dt_vNodes.Columns.Add("Position", typeof(string)); //Read the file vNodes_Capture.txt and, for each line, create a new row in dt_vNodes string txtDataBase = "vNodes_Capture.txt"; foreach (string Line in File.ReadLines(txtDataBase)) { //Split lines at delimiter ';'' //Create new Row dr = dt_vNodes.NewRow(); //IdNumber = dr[0] = Line.Split(';').ElementAt(0); //Position = dr[1] = Line.Split(';').ElementAt(1); //Add the row we created dt_vNodes.Rows.Add(dr); } // Check values in column "Position" and add virtual bones if necessary List<DataRow> rows = dt_vNodes.AsEnumerable().ToList(); foreach (DataRow drow in rows) { int currentidnumber = Convert.ToInt32(drow["IdNumber"]); string currentposition = drow["Position"].ToString(); if (currentposition.ToLower() == "upspine") // convertie en minuscules { dt_vNodes.Rows.Remove(drow); // delete row with upspine dt_vNodes.Rows.Add(new object[] { currentidnumber, "LeftShoulder" }); dt_vNodes.Rows.Add(new object[] { currentidnumber, "RightShoulder" }); } else if (currentposition.ToLower() == "pelvis") //convertie en minuscule { dt_vNodes.Rows.Remove(drow); // delete row with pelvis dt_vNodes.Rows.Add(new object[] { currentidnumber, "LeftHip" }); dt_vNodes.Rows.Add(new object[] { currentidnumber, "RightHip" }); } else { dt_vNodes.Rows.Add(new object[] { currentidnumber, currentposition }); } } // Converting the DT in a List<string> for further use foreach (DataRow drow in rows) { BonesRealVirtualS.Add(drow["Position"].ToString()); } //Return Dataview that populates the datagrid ItemsSource DataView dvN = new DataView(dt_vNodes); dgBB.ItemsSource = BonesRealVirtualS; return dvN; }
Hi Paul,
Few questions :
1) can you please specify the type of BonesRealVirtualS, what it is?
2) is dgBB a list view or something else?
3) can you please publish your expected output based on the input of the text file you attached in your question?
4) Also in else case below I'm not sure we need to add a new row since this is already present in the data table.
else { dt_vNodes.Rows.Add(new object[] { currentidnumber, currentposition }); }
Thanks,
Karrtik
Paulagier
ASKER
Hi Karrtik,
1.
List<string> BonesRealVirtualS = new List<string>();
2.
dgBB is a datagrid
3.
expected output: two colums , identical to the txt file i.e. "IdNumber" and "position"
4.
Don't know , i' m a newbie in that world !!
Few questions :
1) can you please specify the type of BonesRealVirtualS, what it is?
2) is dgBB a list view or something else?
3) can you please publish your expected output based on the input of the text file you attached in your question?
4) Also in else case below I'm not sure we need to add a new row since this is already present in the data table.
else { dt_vNodes.Rows.Add(new object[] { currentidnumber, currentposition }); }
Thanks,
Karrtik