private static List <TreeNode> GetChildNode(Int32 parentid, TreeViewSchema tvwSchema)
{
List <TreeNode> childtreenodes = new List <TreeNode>();
DataView dataView1 = new DataView(tvwSchema.DataSource);
String strFilter = "" + tvwSchema.ParentMember + "=" + parentid.ToString() + "";
dataView1.RowFilter = strFilter;
if (dataView1.Count > 0)
{
foreach (DataRow dataRow in dataView1.ToTable().Rows)
{
TreeNode childNode = new TreeNode();
childNode.Text = dataRow[tvwSchema.DisplayMember].ToString();
childNode.Tag = dataRow[tvwSchema.ValueMember].ToString();
childNode.ExpandAll();
Int32 keyMember = Convert.ToInt32(dataRow[tvwSchema.KeyMember].ToString());
foreach (TreeNode cnode in GetChildNode(keyMember, tvwSchema))
{
childNode.Nodes.Add(cnode);
}
childtreenodes.Add(childNode);
}
}
return(childtreenodes);
}
public static void CreateTreeView(TreeView treeView1,DataTable dt)
{
TreeViewSchema tvwSchema = new TreeViewSchema();
tvwSchema.DataSource = dt;
tvwSchema.KeyMember = "Id";
tvwSchema.DisplayMember = "Node";
tvwSchema.ValueMember = "Id";
tvwSchema.ParentMember = "ParentId";
Helper.PopulateTree(treeView1, tvwSchema);
treeView1.ExpandAll();
treeView1.CheckBoxes = true;
treeView1.Nodes[0].Checked = true;
}
public static void CreateTreeView(TreeView treeView1, DataTable dt)
{
TreeViewSchema tvwSchema = new TreeViewSchema();
tvwSchema.DataSource = dt;
tvwSchema.KeyMember = "Id";
tvwSchema.DisplayMember = "Node";
tvwSchema.ValueMember = "Id";
tvwSchema.ParentMember = "ParentId";
Helper.PopulateTree(treeView1, tvwSchema);
treeView1.ExpandAll();
treeView1.CheckBoxes = true;
treeView1.Nodes[0].Checked = true;
}
public static void PopulateTree(TreeView objTreeView, TreeViewSchema tvwSchema)
{
objTreeView.Nodes.Clear();
if (tvwSchema.DataSource != null)
{
foreach (DataRow dataRow in tvwSchema.DataSource.Rows)
{
if (Convert.ToInt32(dataRow[tvwSchema.ParentMember]) == 0)
{
TreeNode treeRoot = new TreeNode();
treeRoot.Text = dataRow[tvwSchema.DisplayMember].ToString();
treeRoot.Tag = dataRow[tvwSchema.ValueMember].ToString();
treeRoot.ExpandAll();
objTreeView.Nodes.Add(treeRoot);
Int32 keyMember = Convert.ToInt32(dataRow[tvwSchema.KeyMember].ToString());
foreach (TreeNode childNode in GetChildNode(keyMember, tvwSchema))
{
treeRoot.Nodes.Add(childNode);
}
}
}
}
}
private static List<TreeNode> GetChildNode(Int32 parentid, TreeViewSchema tvwSchema)
{
List<TreeNode> childtreenodes = new List<TreeNode>();
DataView dataView1 = new DataView(tvwSchema.DataSource);
String strFilter = "" + tvwSchema.ParentMember + "=" + parentid.ToString() + "";
dataView1.RowFilter = strFilter;
if (dataView1.Count > 0)
{
foreach (DataRow dataRow in dataView1.ToTable().Rows)
{
TreeNode childNode = new TreeNode();
childNode.Text = dataRow[tvwSchema.DisplayMember].ToString();
childNode.Tag = dataRow[tvwSchema.ValueMember].ToString();
childNode.ExpandAll();
Int32 keyMember = Convert.ToInt32(dataRow[tvwSchema.KeyMember].ToString());
foreach (TreeNode cnode in GetChildNode(keyMember, tvwSchema))
{
childNode.Nodes.Add(cnode);
}
childtreenodes.Add(childNode);
}
}
return childtreenodes;
}
public static void PopulateTree(TreeView objTreeView, TreeViewSchema tvwSchema)
{
objTreeView.Nodes.Clear();
if (tvwSchema.DataSource != null)
{
foreach (DataRow dataRow in tvwSchema.DataSource.Rows)
{
if (Convert.ToInt32(dataRow[tvwSchema.ParentMember]) == 0)
{
TreeNode treeRoot = new TreeNode();
treeRoot.Text = dataRow[tvwSchema.DisplayMember].ToString();
treeRoot.Tag = dataRow[tvwSchema.ValueMember].ToString();
treeRoot.ExpandAll();
objTreeView.Nodes.Add(treeRoot);
Int32 keyMember = Convert.ToInt32(dataRow[tvwSchema.KeyMember].ToString());
foreach (TreeNode childNode in GetChildNode(keyMember, tvwSchema))
{
treeRoot.Nodes.Add(childNode);
}
}
}
}
}
