Intersoft Community - WebGrid Enterprise - Expand Self Reference Grid Programmatically To Specific Child Row

Expand Self Reference Grid Programmatically To Specific Child Row

handy@intersoftpt.com — Mon, 28 Jun 2010 09:50:02 GMT

Sure, I will create a wi for this feature request.

Regards,
Handy

Expand Self Reference Grid Programmatically To Specific Child Row

PRISMAY — Fri, 25 Jun 2010 08:13:21 GMT

Hello,
Thank you for your feedback. Unfortunately, it is not a bug. The current method can only open SelfRefRow in one level, not all SelfRefRow include the child.
Regards,
Handy

Handy,

Would you kindly submit it as a feature request please? It would really be helpful to not have to do this programmatically, i.e., when you select a specific node to expand, it should, when rendered, have its parents expanded too. That behavior, at least to me, seems to be the obvious one and is what I had expected. Thanks a lot.

Expand Self Reference Grid Programmatically To Specific Child Row

handy@intersoftpt.com — Thu, 24 Jun 2010 23:09:54 GMT

Hello,

Thank you for your feedback. Unfortunately, it is not a bug. The current method can only open SelfRefRow in one level, not all SelfRefRow include the child.

Regards,
Handy

Expand Self Reference Grid Programmatically To Specific Child Row

PRISMAY — Thu, 24 Jun 2010 11:42:14 GMT

Okay, I found a way to work around the issue above which still should have worked and I'd consider it a bug. In our workaround, we were lucky in that the keys contained what we need to start expanding at the parent and work our way down.

foreach (string strKey in FoundItemKeyValueList)
{
    // get our find target and current row's key and move its individual ids
    // into their own arrays so we can compare and drill down to our found
    // target by expanding the parent rows
    string[] arFoundIds = strKey.Split(',');
    string[] arCurrentIds = e.Row.KeyValue.ToString().Split(',');

    // if we match our key fully, then we're at our target so we do not need
    // to expand anything but we do need to select it
    if (strKey == e.Row.KeyValue.ToString())
    {
        // and then select our item
        e.Row.Selected = true;
    }
    // if we haven't found our target yet, then expand the parent where our
    // target lives until we get to it.  We determine this by checking
    // our current row against our target at the current level which would
    // have the same key IDs
    else if (arFoundIds[e.Row.SelfRefLevel] == arCurrentIds[e.Row.SelfRefLevel])
    {
        e.Row.ExpandSelfRefRow();
    }
}

Expand Self Reference Grid Programmatically To Specific Child Row

PRISMAY — Thu, 24 Jun 2010 10:50:52 GMT

Handy,

This is working but not as expected. Unfortunately, it's not expanding the entire levels above the item. For example, if I have the following:

- Item 1
-    Item 1-1
+       Item 1-1-1
-       Item 1-1-2
           Item 1-1-2-1
+    Item 1-2

If I need to select and expand to item 1-1-2-1, the grid comes up like this

+ Item 1
           Item 1-1-2-1
+    Item 1-2

I tried the following code to expand everything going up in the InitializeRow override but it does not work:

if (strKey == e.Row.KeyValue.ToString())
{
    // select our item
    e.Row.Selected = true;

    // expand all the rows from the bottom up
    WebGridRow oWorkRow = e.Row.SelfRefParentRow;
    while (oWorkRow != null)
    {
        oWorkRow.ExpandSelfRefRow();
        oWorkRow = oWorkRow.SelfRefParentRow;
    }
}

How can I get the grid to expand all the parents too?

Expand Self Reference Grid Programmatically To Specific Child Row

PRISMAY — Thu, 24 Jun 2010 08:10:57 GMT

Great, thank you Handy. I'll give this a try today and see how it goes.

Expand Self Reference Grid Programmatically To Specific Child Row

handy@intersoftpt.com — Thu, 24 Jun 2010 04:39:33 GMT

Hi Yousif,

If you want to expand the row when loading WebGrid, I suggest you to handle the code at InitializeRow serverside event.

e.g... some KeyValue are not in string object. So, sometimes, you will need to convert into string.

 protected void WebGrid1_InitializeRow(object sender, ISNet.WebUI.WebGrid.RowEventArgs e)
    {
        if (e.Row.KeyValue.ToString() == "1")
        {
            e.Row.ExpandSelfRefRow();
        }
    }

Regards,
Handy

Expand Self Reference Grid Programmatically To Specific Child Row

PRISMAY — Wed, 23 Jun 2010 13:18:24 GMT

Is there a way to load the grid and have it expand automatically to a specific row based on the row key? Even if the grid can't do this via properties, how can this be accomplished programmatically on both server and client side? Thank you.