CODEWITHSUNDEEP
c#asp.netdata-binding
user3734234
user3734234

Reputation: 161

How to use IF ELSE statement in DataBinder.Eval in asp.net

I have to use multiple if else statement in Grid view if code == "1" then "Test1" and if its "2" then "Test2" and if its "3" then "Test3" and if its "4" the "Test4".. 

<asp:Label ID="lblCode" runat="server" Text='<%# DataBinder.Eval(Container, "DataItem.Code")%>'></asp:Label>

so i tried to include like this 

<asp:Label ID="lblCode" runat="server" Text='<%# if((DataBinder.Eval(Container, "DataItem.Code")).ToString())==" 1" then "Test1" %>'></asp:Label>

it shows me error Invalid expression term 'if' .. now how to write this , Please help

Upvotes: 1

Views: 7832

Answers (1)

Kelsey
Kelsey

Reputation: 47766

This is where you should be using the controls OnDataBinding event instead and moving any logic outside of your markup into your code behind.

<asp:Label ID="lblCode" runat="server" Text='' OnDataBinding="lblCode_DataBinding" />

Then implement the event:

protected void lblCode_DataBinding(object sender, System.EventArgs e)
{
    Label lbl = (Label)sender;
    string code = Eval("Code");
    switch (code)
    {
        case "1":
           lbl.Text = "Test1";
           break;
        case "2":
           lbl.Text = "Test2";
           break;
        case "3":
           lbl.Text = "Test3";
           break;
        case "4":
           lbl.Text = "Test4";
           break;
        default:
           lbl.Text = "Unknown";
           break;
    }
}

It's best practice to keep your logic in your code behind.

Hope that helps.

Upvotes: 2

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