Databases
StackOverflow2013
Postsdbo
POcheck parents of child
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POcheck parents of child
    primarykey
    data
    text
    <p>I have an asp.net treeview (acting as a remote file and folder browser). When a node is selected all child nodes are automatically selected. This works fine (c# code below).</p> <p>When any child is checked/unchecked I want all related parents to be checked/unchecked as well. I cannot figure this out. I want to use c# to do this. </p> <p>-item1</p> <p>------child1</p> <p>------child2</p> <pre><code> --child2.1 --child2.2 </code></pre> <p>------child3</p> <p>Example 1 - if child 2.2 had its checkbox checked then child 2 and item1 will be checked automatically using c# code behind</p> <p>Example 2 - if item1, child 2 , child 2.1 and child 2.2 were checked and if the user were to uncheck child 2.2 then item1, child 2 would remain checked as child 2.1 is still checked</p> <p>thanks Damo</p> <p>below is my code that checks all children of a checked item and works fine.</p> <pre><code>/// &lt;summary&gt; /// Checks or unchecks child nodes when a parent node is checked or unchecked. /// &lt;/summary&gt; /// &lt;param name="sender"&gt;&lt;/param&gt; /// &lt;param name="e"&gt;&lt;/param&gt; protected void OnTreeNodeCheckChanged(object sender, TreeNodeEventArgs e) { // Determine if checked Node is a root node. if (e.Node.ChildNodes.Count &gt; 0) { // Check or uncheck all of the child nodes based on status of parent node. if (e.Node.Checked) ChangeChecked(e.Node, true); else ChangeChecked(e.Node, false); } } /// &lt;summary&gt; /// Recursively checks or unchecks all child nodes for a given TreeNode. /// &lt;/summary&gt; /// &lt;param name="node"&gt;TreeNode to check or uncheck.&lt;/param&gt; /// &lt;param name="check"&gt;Desired value of TreeNode.Checked.&lt;/param&gt; private void ChangeChecked(TreeNode node, bool check) { // "Queue" up child nodes to be checked or unchecked. if (node.ChildNodes.Count &gt; 0) { for (int i = 0; i &lt; node.ChildNodes.Count; i++) ChangeChecked(node.ChildNodes[i], check); } node.Checked = check; } </code></pre>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USuser1438082
    1. USuser1438082
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POcheck parents of child
      1. This table or related slice is empty.
      1. VTApproveEditSuggestion
    1. This table or related slice is empty.
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload