Well, here is what I have learned.
First, I tryed as you suggested with no results. I had tryed this
before, but did so again and nothing.
So, I finally decide that maybe it works, but the code for some reason
never gets there. So
I went to my page_load method and tryed to skip everything I can. What
I found out is that if I skip the
dgAccessPrivs.DataBind();
line, the page_load procedure finishes AND THEN execution continues
into the event procedures. Ah ha!
So, of course I let it bind the first time so that the rows in the
grid are populated with a delete button on each. Then after clicking
the delete button, I break at the DataBind statement and then skip
around it. Now execution moves to the event procedures. Wala !
2 things to note here:
1) is what I learned, and
2) Still have to figure out why does it do this?
1) By defining the datagrid like this:[color=blue]
><asp:DataGrid id="dgAccessPrivs" style="Z-INDEX: 110; LEFT: 296px;
> POSITION: absolute; TOP: 192px" runat="server"
> AutoGenerateColumns="False"
>OnDeleteCommand="dgAccessPrivs_DeleteCommand">[/color]
AND having a C# intitializeComponent() procedure entry like this:[color=blue]
>this.dgAccessPrivs.DeleteCommand +=
> new System.Web.UI.WebControls.DataGridCommandEventHand ler(this.dgAccessPrivs_DeleteCommand);[/color]
the DeleteCommand event procedure runs twice!! (If I skip the
databinding to the grid).
Removing either one OR the other by itself will cause the event
procedure to run once (If I skip the databinding to the grid). So I
guess you can bind the event to the procedure by either declaring it
in the asp code OR
manually binding it in the C# code.
2) Now, I have to figure out, why , after binding the the dataset to
the grid, does the page_load procedure finish, but then THE EVENT CODE
NEVER RUNS.
?????
Thank you very much for your help
Jeff
On Sun, 05 Feb 2006 09:30:50 -0500, John Sun <jsunnewsgroup@gmail.com>
wrote:
[color=blue]
>I checked :
>
>
http://msdn.microsoft.com/library/de...mmandtopic.asp
>
>Change this from
><asp:DataGrid id="dgAccessPrivs" style="Z-INDEX: 110; LEFT: 296px;
> POSITION: absolute; TOP: 192px" runat="server"
> AutoGenerateColumns="False">
>
>to
>
><asp:DataGrid id="dgAccessPrivs" style="Z-INDEX: 110; LEFT: 296px;
> POSITION: absolute; TOP: 192px" runat="server"
> AutoGenerateColumns="False"
>OnDeleteCommand="dgAccessPrivs_DeleteCommand">
>
>
>Check to see whether it makes a difference.
>
>HTH.
>
>
>
>Jeff User wrote:[color=green]
>> John[color=darkred]
>>> [This code is running only when the DeleteCommand is raised, are you
>>> sure it is the case .][/color]
>>
>> No, I am not sure of anything at this point. That is one my problems
>> is that I am not sure what event I am actually supposed to be trying
>> to catch and/or if I am supposed to declare it somewhere....
>>[color=darkred]
>>> [ I don't think you have hooked up the right event handler with the
>>> function,[/color]
>> I think you are correct in that something is not connected as it
>> should be.
>>[color=darkred]
>>> this.dgAccessPrivs.DeleteCommand+, where did you find this
>>> DeleteCommand?][/color]
>> In DataGrid Properties window->Events list. I double clicked it
>> (DeleteCommand). From what I read in online help for the
>> "DataGrid.DeleteCommand Event " I thought that was the name of the
>> event to go after. But then the example code went and did it
>> differently (OnItemCommand="ItemsGrid_Command")
>> so then I was totally confused anyway.
>>
>> So, how do I know the name of the event that I am trying to catch
>> into?
>>
>> and then, is that line:[color=darkred]
>>>> this.dgAccessPrivs.DeleteCommand += new
>>>> System.Web.UI.WebControls.DataGridCommandEventHand ler(this.dgAccessPrivs_DeleteCommand);[/color]
>> the line that actually makes the connection between the event and the
>> procedure?
>>
>> Thanks
>> Jeff
>>
>>
>>
>> On Sat, 04 Feb 2006 23:58:55 -0500, John Sun <jsunnewsgroup@gmail.com>
>> wrote:
>>[color=darkred]
>>> Jeff User wrote:
>>>> Hi
>>>> I tryed to solve this problem over in the framework.asp group, but
>>>> still am having trouble. Hope someone here can help.
>>>>
>>>> using .net 1.1, VS 2003 and C#
>>>> I have an asp.DataGrid control with a Delete button on the end of each
>>>> row. I am unable to gain access to the event when the button is
>>>> clicked.
>>>>
>>>> I don't fully understand how the click gets connected to the C# code,
>>>> which makes figuring this out difficult. If anyone can see my problem
>>>> or explain how this works so that maybe I can figure it out, I would
>>>> be most happy. I will also post complete code if anyone wants to see
>>>> it.
>>>>
>>>> Here is what I do to create this grid and Delete button and then what
>>>> I end up with:
>>>> - Drag the grid onto the page in design view and name it
>>>> "dgAccessPrivs".
>>>> - Go to the properties window and through the Columns property, define
>>>> a few bound columns and then the Delete button column.
>>>> This produces the aspx code for the grid like this:
>>>>
>>>> <asp:DataGrid id="dgAccessPrivs" style="Z-INDEX: 110; LEFT: 296px;
>>>> POSITION: absolute; TOP: 192px" runat="server"
>>>> AutoGenerateColumns="False">
>>>> <Columns>
>>>> <asp:BoundColumn DataField="Grantor" ReadOnly="True"
>>>> HeaderText="Grantor"></asp:BoundColumn>
>>>> <asp:BoundColumn DataField="Grantee" ReadOnly="True"
>>>> HeaderText="Grantee"></asp:BoundColumn>
>>>> <asp:BoundColumn DataField="Object_Type" ReadOnly="True"
>>>> HeaderText="Object Type"></asp:BoundColumn>
>>>> <asp:BoundColumn DataField="Object_Name" ReadOnly="True"
>>>> HeaderText="Object Name"></asp:BoundColumn>
>>>> <asp:BoundColumn DataField="Privilege_Type" ReadOnly="True"
>>>> HeaderText="Privilege"></asp:BoundColumn>
>>>> <asp:ButtonColumn Text="Delete" ButtonType="PushButton"
>>>> CommandName="Delete"></asp:ButtonColumn>
>>>> </Columns>
>>>> </asp:DataGrid>
>>>>
>>>> Notice that no "OnDeleteCommand = ..."
>>>> or "OnItemCommand = ..." phrases are generated. I don't know if they
>>>> are required or not......?
>>>>
>>>> Properties window for this grid shows
>>>> Enabled set to True
>>>> and
>>>> EnableViewState set to True.
>>>>
>>>> Set my datasource and perfprm databind()
>>>>
>>>> Then, while viewing the grid in design view, I go to properties
>>>> window, click the lightning bolt (events) and double click
>>>> "DeleteCommand" in the list. Got this information from VS/msdn help.
>>>> The following C# code is generated:
>>>>
>>>> this.dgAccessPrivs.DeleteCommand += new
>>>> System.Web.UI.WebControls.DataGridCommandEventHand ler(this.dgAccessPrivs_DeleteCommand);
>>>>
>>>> This is created in the initializeComponent procedure that runs every
>>>> time the form loads.
>>>> Q1) I take it this somehow binds the aspx datagrid event to the C#
>>>> code shown below?
>>>>
>>>> The shell for the event procedure code is also generated.:
>>>> private void dgAccessPrivs_DeleteCommand(object source,
>>>> System.Web.UI.WebControls.DataGridCommandEventArgs e)
>>>> {....}
>>>>
>>>> Code placed in this procedure does not run. It never executes.
>>>> Never..
>>> [This code is running only when the DeleteCommand is raised, are you
>>> sure it is the case .]
>>>> Q2) First of all, is this even the correct event? Should I have chosen
>>>> something else like OnItemCommand ? (that didnt work either)
>>>>
>>>> I have also been suggested to use the OnItemCommand. Double clicking
>>>> this in the events window for the grid also produces code similar to
>>>> that shown above, but doesnt work.
>>>>
>>> [ The function name change doesn't make any difference. You want to make
>>> sure the function is correctly hooked to the event handler].
>>>
>>>> Q3) (If this is relevant) what are all these OnItemCommand and
>>>> OnDeleteCommand phrases that can be placed in the html/asp code for
>>>> the grid??? Are they also required?
>>>> I have tryed it with them, without them, many combinations of all code
>>>> mentioned and shown above, but can never get the code to run in the
>>>> dgAccessPrivs_DeleteCommand(){} procedures.
>>> [ I don't think you have hooked up the right event handler with the
>>> function, this.dgAccessPrivs.DeleteCommand+, where did you find this
>>> DeleteCommand?]
>>>> Going on day 4
>>>> Thanks
>>>> Jeff
>>>>[/color]
>>[/color][/color]
