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Dynamical data binding
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Hello togheter,

 

could somebody please support me by the following data binding  issue:

On my web site I have two buttons (A & B).

When I click button A, I would like to bind data source A with the dedicated columns to the  WebHierarchicalDataGrid.

When I click button B, I would like to bind data source B with the dedicated columns to the  WebHierarchicalDataGrid.

 

HTML:

<body>

<form id="form1" runat="server">

<div>

<asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>

 <ig:WebHierarchicalDataGrid ID="WebHierarchicalDataGrid1" runat="server" Height="500px" Width="400px">

<GroupingSettings EnableColumnGrouping="True" GroupAreaVisibility="Visible" GroupByAreaLocation="Top"/>

<Behaviors>

<ig:Activation Enabled="true"></ig:Activation>

<ig:Selection Enabled="true" RowSelectType="Single" CellClickAction="Row" ></ig:Selection>

<ig:RowSelectors Enabled="true" RowNumbering="true" EnableInheritance="true"></ig:RowSelectors>

<ig:Paging Enabled="true" EnableInheritance="true" PagerMode="Numeric" PageSize="100"></ig:Paging>

<ig:Sorting Enabled="true" EnableInheritance="true" SortingMode="Single"></ig:Sorting>

</Behaviors>

</ig:WebHierarchicalDataGrid>

 

<asp:Button ID="Button_A" runat="server" Text="Button_A" OnClick="Button_A_Click" />

<asp:Button ID="Button_B" runat="server" Text="Button_B" OnClick="Button_B_Click" />

</div>

</form>

</body>

Page_Load:

if(!Page.IsPostBack)

{

Session["DataSource_Session"] = null;

WebHierarchicalDataGrid1.AutoGenerateColumns = false;

}

 

object data = Session["DataSource_Session"];

 

if(data != null)

{

if (data.GetType() == typeof(A[]))

{

WebHierarchicalDataGrid1.DataKeyFields = WebHierarchicalDataGrid1.Columns[0].Key;

WebHierarchicalDataGrid1.DataSource = (A[])data;

WebHierarchicalDataGrid1.DataBind();

}

else if (data.GetType() == typeof(B[]))

{

WebHierarchicalDataGrid1.DataKeyFields = WebHierarchicalDataGrid1.Columns[0].Key;

WebHierarchicalDataGrid1.DataSource = (B[])data;

WebHierarchicalDataGrid1.DataBind();

}

}

 

 

Button_Click_Event:

 

protected void Button_B_Click(object sender, EventArgs e)

{

try

{

WebHierarchicalDataGrid1.Columns.Clear();

WebHierarchicalDataGrid1.GridView.ClearDataSource();

 

BoundDataField dtf = new BoundDataField();

dtf.Header.Text = "Unique ID";

dtf.Key = "uniqueID";

dtf.DataFieldName = "uniqueID";

 

BoundDataField dtf1 = new BoundDataField();

dtf1.Header.Text = "Value B";

dtf1.Key = "valueB";

dtf1.DataFieldName = "valueB";

 

WebHierarchicalDataGrid1.Columns.Add(dtf);

WebHierarchicalDataGrid1.Columns.Add(dtf1);

 

B[] valueList = new B[10];

 

for (int i = 0; i < 10; i++)

{

B obj = new B();

obj.uniqueID = i;

obj.valueB = "Value B " + i.ToString();

 

valueList[i] = obj;

}

 

WebHierarchicalDataGrid1.DataKeyFields = WebHierarchicalDataGrid1.Columns[0].Key                WebHierarchicalDataGrid1.DataSource = valueList;

WebHierarchicalDataGrid1.DataBind();

 

WebHierarchicalDataGrid1.GridView.DataKeyFields = WebHierarchicalDataGrid1.DataKeyFields;

WebHierarchicalDataGrid1.GridView.DataSource = WebHierarchicalDataGrid1.DataSource;

WebHierarchicalDataGrid1.GridView.DataBind();

 

WebHierarchicalDataGrid1.RefreshBehaviors();

 

Session["DataSource_Session"] = valueList;

 

}

catch (Exception ex)

{

string msg = ex.Message;

}

}

 

 

 

protected void Button_A_Click(object sender, EventArgs e)

{

try

{

WebHierarchicalDataGrid1.Columns.Clear();

WebHierarchicalDataGrid1.GridView.ClearDataSource();

 

BoundDataField dtf = new BoundDataField();

dtf.Header.Text = "Unique ID";

dtf.Key = "uniqueID";

dtf.DataFieldName = "uniqueID";

 

BoundDataField dtf1 = new BoundDataField();

dtf1.Header.Text = "Value A";

dtf1.Key = "valueA";

dtf1.DataFieldName = "valueA";

 

WebHierarchicalDataGrid1.Columns.Add(dtf);

WebHierarchicalDataGrid1.Columns.Add(dtf1);

 

A[] valueList = new A[10];

 

for (int i = 0; i < 10; i++)

{

A obj = new A();

obj.uniqueID = i;

obj.valueA = "Value A " + i.ToString();

 

valueList[i] = obj;

}

 

 

WebHierarchicalDataGrid1.DataKeyFields = WebHierarchicalDataGrid1.Columns[0].Key                WebHierarchicalDataGrid1.DataSource = valueList;

WebHierarchicalDataGrid1.DataBind();

 

WebHierarchicalDataGrid1.GridView.DataKeyFields = WebHierarchicalDataGrid1.DataKeyFields;

WebHierarchicalDataGrid1.GridView.DataSource = WebHierarchicalDataGrid1.DataSource;

WebHierarchicalDataGrid1.GridView.DataBind();

 

WebHierarchicalDataGrid1.RefreshBehaviors();

 

Session["DataSource_Session"] = valueList;

 

}

catch (Exception ex)

{

string msg = ex.Message;

}

}

 

 

Data_Source_Class:

 

public class A

{

Int64 _uniqueID;

public Int64 uniqueID

{

get { return _uniqueID; }

set { _uniqueID = value; }

}

 

string _valueA;

public string valueA

{

get { return _valueA; }

set { _valueA = value; }

}

}

 

 

public class B

{

Int64 _uniqueID;

public Int64 uniqueID

{

get { return _uniqueID; }

set { _uniqueID = value; }

}

 

string _valueB;

public string valueB

{

get { return _valueB; }

set { _valueB = value; }

}

}

Thanks in advanced.

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