asp checkbox checking for OnCheckedChange d value

[Maziar Aflatoun]

Hi everyone,

I am reading and displaying data rows from my database where the first
column contains the Status checkbox. I like to enable my users to change
the status of individual rows by checking and unchecking the checkbox
column. I like to update the status in the database for the column where
the status was changed.

This is what I'm doing so far

<asp:datagrid id="MyDataGrid " runat="server" CellPadding="2"
AutoGenerateCol umns="false" HeaderStyle-CssClass="maint ableheader"
Width="95%">
<Columns>
<asp:BoundColum n DataField="BID" ReadOnly="True"
Visible="False" ></asp:BoundColumn >
<asp:TemplateCo lumn HeaderText="Act ive" Visible="True"
ItemStyle-HorizontalAlign ="Center">
<ItemTemplate >
<asp:CheckBox ID="Status" Runat="server" Checked='<%#
FormatStatus(Da taBinder.Eval(C ontainer.DataIt em, "Status")) %>'
AutoPostBack=Tr ue OnCheckedChange d="UpdateCheckb oxStatus">
</asp:CheckBox>
</ItemTemplate>
</asp:TemplateCol umn>
....etc.

and in my .cs page

public void UpdateCheckboxS tatus(object sender, System.EventArg s e)
{
Response.Write ("You click the row...")...
}

How can I find out which row was clicked? Please let me know if there is a
better way to do this.

Thank you
Maz

[Teemu Keiski]

Hi,

you get to the CheckBox's parent DataGridItem by utilizing the hierarchical
idea of Controls collection, meaning that get it via your Control's Parent
property.

public void UpdateCheckboxS tatus(object sender, System.EventArg s e)
{
//Written into several lines to clarify, you could go with one line

//Current checkbox
CheckBox box=(CheckBox)s ender;

//The TableCell the control is in
TableCell cell=(TableCell )box.Parent;

//The DataGridItem the cell belongs to
DataGridItem dgItem=(DataGri dItem)cell.Pare nt;
}

With that DataGridItem you get for example ItemIndex of the DataGridItem you
are into. It is the same would be e.Item in ItemCommand,Ite mDataBound or
ItemCreated. And you can then again get the PK of the current row and so on
via DataKeys collection.

--
Teemu Keiski
MCP, Microsoft MVP (ASP.NET), AspInsiders member
ASP.NET Forum Moderator, AspAlliance Columnist
http://blogs.aspadvice.com/joteke
"Maziar Aflatoun" <ma***@rogers.c om> wrote in message
news:27******** *************@n ews01.bloor.is. net.cable.roger s.com...

Hi everyone,

I am reading and displaying data rows from my database where the first
column contains the Status checkbox. I like to enable my users to change
the status of individual rows by checking and unchecking the checkbox
column. I like to update the status in the database for the column where
the status was changed.

This is what I'm doing so far

<asp:datagrid id="MyDataGrid " runat="server" CellPadding="2"
AutoGenerateCol umns="false" HeaderStyle-CssClass="maint ableheader"
Width="95%">
<Columns>
<asp:BoundColum n DataField="BID" ReadOnly="True"
Visible="False" ></asp:BoundColumn >
<asp:TemplateCo lumn HeaderText="Act ive" Visible="True"
ItemStyle-HorizontalAlign ="Center">
<ItemTemplate >
<asp:CheckBox ID="Status" Runat="server" Checked='<%#
FormatStatus(Da taBinder.Eval(C ontainer.DataIt em, "Status")) %>'
AutoPostBack=Tr ue OnCheckedChange d="UpdateCheckb oxStatus">
</asp:CheckBox>
</ItemTemplate>
</asp:TemplateCol umn>
...etc.

and in my .cs page

public void UpdateCheckboxS tatus(object sender, System.EventArg s e)
{
Response.Write ("You click the row...")...
}

How can I find out which row was clicked? Please let me know if there is a
better way to do this.

Thank you
Maz

[Scott Allen]

Teemu gave a great answer. For some more sample code see my article
here:

http://odetocode.com/Articles/116.aspx

--
Scott
http://www.OdeToCode.com

On Sun, 05 Sep 2004 06:12:14 GMT, "Maziar Aflatoun" <ma***@rogers.c om>
wrote:

Hi everyone,

I am reading and displaying data rows from my database where the first
column contains the Status checkbox. I like to enable my users to change
the status of individual rows by checking and unchecking the checkbox
column. I like to update the status in the database for the column where
the status was changed.

This is what I'm doing so far

<asp:datagri d id="MyDataGrid " runat="server" CellPadding="2"
AutoGenerateCo lumns="false" HeaderStyle-CssClass="maint ableheader"
Width="95%">
<Columns>
<asp:BoundColum n DataField="BID" ReadOnly="True"
Visible="False "></asp:BoundColumn >
<asp:TemplateCo lumn HeaderText="Act ive" Visible="True"
ItemStyle-HorizontalAlign ="Center">
<ItemTemplate >
<asp:CheckBox ID="Status" Runat="server" Checked='<%#
FormatStatus(D ataBinder.Eval( Container.DataI tem, "Status")) %>'
AutoPostBack=T rue OnCheckedChange d="UpdateCheckb oxStatus">
</asp:CheckBox>
</ItemTemplate>
</asp:TemplateCol umn>
...etc.

and in my .cs page

public void UpdateCheckboxS tatus(object sender, System.EventArg s e)
{
Response.Write ("You click the row...")...
}

How can I find out which row was clicked? Please let me know if there is a
better way to do this.

Thank you
Maz