I am trying to follow this tutorial on how to bind an array to a grid-view: Binding Arrays to GridView in ASP.Net
It is easy enough to follow, but my array structure looks different that the one in the example. I would like to find out how to write an array that looks like this:
{
"users": [
{
"name": "aldo",
"email": "[email protected]"
},
{
"name": "matias",
"email": "[email protected]"
}
]
}
Any help would be great.
Thank you, Erasmo
First thing to say is, this not a multidimensional array. It's an array of User objects. In C# you could implement it like this.
public class User
{
public string Name {get; set;}
public string Email {get; set;}
}
List<User> users = new List<User>
{
new User { Name = "aldo", Email ="[email protected]"},
new User { Name = "matias", Email ="[email protected]"}
}
This would generate the JSON you've shown when serialized.
One slight thing to note is that C# uses Pascal-casing (Name,Email) whereas JavaScript and your JSON use Camel-casing (name, email).
Some JSON serializers (such the one for .NET Core WebAPI) automatically make this conversion, but other do not, so you may have to use an inappropriate convention in one language or the other.
I've used code from the tutorial you mentioned and modified it in order to fit your requirements:
<asp:GridView ID="GridMultiD" runat="server"
AutoGenerateColumns = "false" Font-Names = "Arial"
Font-Size = "11pt" AlternatingRowStyle-BackColor = "#C2D69B"
HeaderStyle-BackColor = "green" AllowPaging ="true"
PageSize = "10" Caption = "Multi-Dimensional Array" >
<Columns>
<asp:BoundField ItemStyle-Width = "150px"
DataField = "Name" HeaderText = "Name" />
<asp:BoundField ItemStyle-Width = "150px"
DataField = "Email" HeaderText = "Email" />
</Columns>
</asp:GridView>
//Multi-Dimensional Array
string[,] arrMultiD = {
{ "aldo", "[email protected]" },
{ "matias", "[email protected]"}
};
DataTable dt = new DataTable();
dt.Columns.Add("Name", Type.GetType("System.String"));
dt.Columns.Add("Email", Type.GetType("System.String"));
for (int i = 0; i < 2; i++)
{
dt.Rows.Add();
dt.Rows[dt.Rows.Count - 1]["Name"] = arrMultiD[i, 0];
dt.Rows[dt.Rows.Count - 1]["Email"] = arrMultiD[i, 1];
}
GridMultiD.DataSource = dt;
GridMultiD.DataBind();
