Tree list under winfrom treelist related

To achieve such an effect , Parent and child nodes are associated

//InitializeComponent  In file 
private Hiiso.Component.TreeControlList dgvtc;
this.dgvtc = new Hiiso.Component.TreeControlList();

//CS In file 
  public void LoadData(string workdate,string tano)
        {
            BPDaily bpDaily = new BPDaily();
            if (bpDaily.GetTABackMoneyDetail(workdate, tano))
            {
                dgvtc.DataSource = bpDaily.RetTable;
                dgvtc.KeyFieldName = "ID";
                dgvtc.ParentFieldName = "PID";
                dgvtc.Hiiso_ColumnField = bpDaily.RetColumn;

                dgvtc.CollapseAll();
            }
            else
            {
                MessageBox.Show(" Query exception :" + bpDaily.RetMsg);
            }

        }

TreeList summary

1. The requirements of the form ： If a parent-child relationship is required , Must have ID and ParentID Field , And the parent node ParentID Field Must point to ID Field , If ID repeat , Will be submitted to the Keywords in the dictionary :“E99095” The keywords added :“E99095” Such a mistake .

2.Access The form is going through DATATABLE When , To show a parent-child relationship , Parent and child fields must be of the same data type .

3.Dev Strictly case sensitive

4. Data before presentation , do ID（ The only value , And it's basically a mix of father and son ID Mixed fields for , So the table structure is not clear ）, Add another BSM Auxiliary fields are used to display parent-child nodes , The value of this field can be repeated , Not subject to the primary key condition .

4.RUN Designer Display column order can be edited in （Visible Index）, The index column will now be displayed in the first index .

Two very important words :

dgvtc.KeyFieldName = "CategoryId";// Set primary key  
dgvtc.ParentFieldName = "ParentId";// Set the parent primary key  

We will continue to add ~~~