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Rank: Newbie
Groups: Member
Joined: 3/13/2010
Posts: 3
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Hello,
I recently downloaded EO.Web Controls for ASP.NET for evaluation. It is a very impressive control and it almost looks like it is the control I require. The Excel like editing capability, key navigation and customizing cell level sytle is exactly what I require. However, there is one more feature that is critical for me - it is controlling editing at the cell level. Depending on certain conditions, I would like to prevent a cell (containing either a textbox or a check box or potentially even a drop down list) from being editable. Is it possible for me to do this with the grid control? I was able to get a small demo project running with most of the things worked out, but I am unable to figure out how to prevent a cell from being editable. Is it possible to control editing at the cell level vs at the column level?
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Rank: Administration
Groups: Administration
Joined: 5/27/2007
Posts: 24,194
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Hi, If your Grid's FullRowMode is true, you can do that by handling ClientSideBeforeEditItem and return false from your handler. It will be something like this:
Code: HTML/ASPX
<eo:Grid ClientSideBeforeEditItem="edit_item_handler" .....>
<Columns>
.....
<eo:Text
.....
eo:Grid>
Code: JavaScript
function edit_item_handler()
{
return false;
}
If your FullRowMode is false, then you can handle the column's ClientSideBeginEdit handler and returns false from your handler:
Code: HTML/ASPX
<eo:Grid .....>
<Columns>
.....
<eo:TextBoxColumn
ClientSideBeginEdit="column_edit_handler" ....>
</eo:TextBoxColumn>
.....
</Columns>
</eo:Grid>
Code: JavaScript
function column_edit_handler()
{
return false;
}
Hope this helps. Thanks!
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Rank: Newbie
Groups: Member
Joined: 3/13/2010
Posts: 3
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Thanks - this works for a text box. Is there something similar for a check box column as well? I couldn't get this working for a checkboxcolumn. Here is my code in the code behind file:
Code: C#
if (dc.ColumnName.ToUpper().Equals("PUSH"))
{
gc = new CheckBoxColumn();
}
else
{
gc = new TextBoxColumn();
}
gc.ReadOnly = false;
eogrdData.Columns.Add(gc);
gc.HeaderText = dc.ColumnName;
gc.ReadOnly = false;
gc.ClientSideBeginEdit = "column_cell_begin_edit";
And here is my javascript code (column 3 is the checkbox column):
Code: JavaScript
function column_cell_begin_edit(cell) {
var colIndex = cell.getColIndex();
var itemIndex = cell.getItemIndex();
alert('ColIndex: ' + colIndex + ' ItemIndex: ' + itemIndex);
if (colIndex == 3 || colIndex == 5) {
if (itemIndex == 2 || itemIndex == 4 || itemIndex == 6) {
alert('This cell is disabled');
return false;
}
}
return true;
}
Any help is appreciated. Thanks in advance.
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Rank: Administration
Groups: Administration
Joined: 5/27/2007
Posts: 24,194
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Hi, CheckBox requires slightly different code. Here is the sample code: http://www.essentialobjects.com/forum/postst4372_how-to-disable-checkbox.aspxPlease let us know if you still have any questions. Thanks!
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