如何使特定的行在基於treeview選擇的datagridview中被選中

Question

我將有一個帶有一些節點的treenode。我將在我的表單上有一個datagridview。最初我會將一些數據加載到gridview中。現在，如果我在我的trreview中選擇一個節點，我想將選定的行作爲特定的行。

假設我的TreeView的是如下

根 | - >兒童 | - > Child1

如果我選擇孩子，我想作一個相應的行作爲選擇，如果child1另一行應該得到選擇。

任何想法請

Answer 1

1）您需要的節點映射到對應的DataGrid行

this.dataGridView1.Rows[0].Tag = id; // a node id 

2）處理節點click事件，並通過ID找到相應的行，然後選擇它

if (tvwACH.SelectedNode.Parent != null) 
{ 
     int id = (int)tvwACH.SelectedNode.Tag ; // make sure you've already assigned tag when creating Three nodes and data rows 
     foreach(DataGridViewRow row in this.dataGridView1.Rows) 
     { 
      int rowId = (int)row.Tag ; 
      if(rowId == id) 
      { 
       row.Selected = ture; 
      } 
      else 
      { 
       row.Selected = false; //discard other rows 
      } 

     } 
} 

Answer 2

yourDataGridView.Rows(nRowIndex).Selected = true;

Answer 3

這是代碼ih AVE書面

private void tvwACH_AfterSelect(object sender, TreeViewEventArgs e) 
    { 

     string node = string.Empty; 
     if (tvwACH.SelectedNode.Parent != null) 
     { 
      node = tvwACH.SelectedNode.Text.ToString(); 
      if (node == "FileHeader") 
      { 
       int tag = Convert.ToInt16(tvwACH.SelectedNode.Tag.ToString()); 
       this.dataGridView1.Rows[0].Tag = tag; 
       foreach (DataGridViewRow row in dataGridView1.Rows) 
       { 
        int rowId = (int)row.Tag; 
        if (rowId == tag) 
        { 
         row.Selected = true; 
        } 
       } 
      } 

      string strSwitch = tvwACH.SelectedNode.Parent.Text; 
      switch (strSwitch) 
      { 
       case "ACH": 
        { 
         dataGridView1.Visible = true; 
         dataGridView1.Rows.Clear(); 
         node = tvwACH.SelectedNode.Text; 
         StreamReader sr = new StreamReader(node); 
         while (sr.Peek() >= 0) 
         { 
          string line = sr.ReadLine(); 
          dataGridView1.Rows.Add(rectype[line.Substring(0, 1)].ToString(), line); 
         } 
         sr.Close(); 
        } 

        break; 

      } 
     } 
    } 

Answer 4

試試這個：

public partial class Form1 : Form 
{ 
    public Form1() 
    { 
     InitializeComponent(); 
    } 
    int flage = 1; 
    private void button1_Click(object sender, EventArgs e) 
    { 
     flage = 1; 
     for (int i = 0; i < dataGridView1.Rows.Count; i++) 
     { 

      if (dataGridView1.Rows[i].Selected) 
      { 
       DataGridViewRow currentRow = dataGridView1.SelectedRows[0]; 


       TreeNode node1 = new TreeNode(currentRow.Cells[1].Value.ToString()); 
       TreeNode node2 = new TreeNode(currentRow.Cells[2].Value.ToString()); 
       TreeNode node3 = new TreeNode(currentRow.Cells[3].Value.ToString()); 
       TreeNode[] TreeArray = new TreeNode[] { node1,node2, node3 }; 
       TreeNode finalnode = new TreeNode(currentRow.Cells[0].Value.ToString(), TreeArray); 

       treeView1.Nodes.Add(finalnode); 
       flage = 1; 
       break; 
      } 
      else 
      { 
       flage = 0; 


      } 
     } 
     if(flage==0) 
     { 
      MessageBox.Show("Row is not Selected Please select the row"); 
     } 
    } 

    private void button2_Click(object sender, EventArgs e) 
    { 
     treeView1.Nodes.Remove(treeView1.SelectedNode); 
    } 

    int flage2; 
    private void button3_Click(object sender, EventArgs e) 
    { 

     for (int i = 0; i < dataGridView1.Rows.Count; i++) 
     { 
      if (dataGridView1.Rows[i].Selected) 
      { 
       dataGridView1.Rows.Remove(dataGridView1.SelectedRows[0]); 
       flage2 = 1; 
       break; 
      } 

      else 
      { 
       flage2 = 0; 
      } 
     } 
     if (flage2 == 0) 
     { 
      MessageBox.Show("Row is not selected Please select the row"); 
     } 

    } 
}