CODEWITHSUNDEEP
c#asp.net.netdatalist
Kim Ivan Bay-an
Kim Ivan Bay-an

Reputation: 85

Change link button fore color inside datalist on ItemDatabound

Hi i'm trying to change the link button fore color base on the condition of network, copychimp, replicator and drive space I've tried this:

protected void dgrMachines_ItemDataBound(object sender, DataListItemEventArgs e)
{
    string copychimp = Convert.ToString(DataBinder.Eval(e.Item.DataItem, "copychimp"));
    string network = Convert.ToString(DataBinder.Eval(e.Item.DataItem, "network_isconnected"));
    string drive = Convert.ToString(DataBinder.Eval(e.Item.DataItem, "drive_alert"));
    string replicator = Convert.ToString(DataBinder.Eval(e.Item.DataItem, "replicator_isactive"));

    if (network == "0" || copychimp == "Disconnected" || drive == "1" || replicator == "0")
    {
        e.Item.ForeColor = System.Drawing.Color.Red;  
    }
    else
    {
        e.Item.ForeColor = System.Drawing.Color.Green;  
    }
}

no luck

but when i try to user change the e.Item.ForeColor = System.Drawing.Color.Green; to e.Item. e.Item.BackColor = System.Drawing.Color.Green;
it work. Here is my html:

<asp:DataList ID="dgrMachines" runat="server" RepeatColumns="5" OnSelectedIndexChanged="dgrMachines_SelectedIndexChanged" OnItemCommand="dgrMachines_ItemCommand" CellPadding="3" CssClass="col-12" OnItemDataBound="dgrMachines_ItemDataBound">
    <HeaderTemplate>
        <div class="container col-12" style="background-color: #333333">
            <b>
                <h2 class="text-center" style="color: white">Machines List</h2>
            </b>

        </div>

    </HeaderTemplate>
    <ItemTemplate>
        <asp:LinkButton ID="lblMachine" Text='<%# Eval("machine") %>' runat="server" Font-Size="Medium" ForeColor="Black"></asp:LinkButton>
       <%-- <asp:label ID="lblcopychimp" runat="server" Text='<%# Eval("copychimp") %>' />
        <asp:label ID="lblNetwork" runat="server" Text='<%# Eval("network_isconnected") %>' />
        <asp:label ID="lblreplicator" runat="server" Text='<%# Eval("replicator_isactive") %>' />
         <asp:label ID="lbldrive" runat="server"  Text='<%# Eval("drive_alert") %>' />--%>

        <%--   <%#Eval("machine")%> --%>
    </ItemTemplate>
</asp:DataList>

Would someone help me out with this?

Upvotes: 0

Views: 605

Answers (1)

Selim Yildiz
Selim Yildiz

Reputation: 5380

You need to use FindControl:

Use FindControl to access a control from a function in a code-behind page, to access a control that is inside another container, or in other circumstances where the target control is not directly accessible to the caller. This method will find a control only if the control is directly contained by the specified container; that is, the method does not search throughout a hierarchy of controls within controls.

So it should be like this:

LinkButton machineButton = (e.Item.FindControl("lblMachine") as LinkButton);
if (machineButton != null)
{
    machineButton.ForeColor = System.Drawing.Color.Red;
}

instead of:

e.Item.ForeColor = System.Drawing.Color.Red;

Upvotes: 1

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