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Expand Child item after insert the parent

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Grid

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2 Answers, 1 is accepted

answered on 30 Mar 2012, 10:59 AM

Hi Raja,

Please take a look into the sample code I tried to expand the row after inserting.

ASPX:

<telerik:RadGrid ID="RadGrid1" runat="server" AutoGenerateColumns="false" OnPreRender="RadGrid1_PreRender"

OnInsertCommand="RadGrid1_InsertCommand" DataSourceID="SqlDataSource1">

<MasterTableView TableLayout="Fixed" DataKeyNames="EmployeeID" CommandItemDisplay="Top">

<Columns>

<telerik:GridBoundColumn UniqueName="EmployeeID" DataField="EmployeeID" HeaderText="EmployeeID" />

<telerik:GridBoundColumn UniqueName="FirstName" DataField="FirstName" HeaderText="First Name" />

<telerik:GridBoundColumn UniqueName="LastName" DataField="LastName" HeaderText="Last Name" />

</Columns>

<DetailTables>

<telerik:GridTableView DataKeyNames="TerritoryID" Name="Detail" DataSourceID="SqlDataSource2">

<Columns>

<telerik:GridBoundColumn DataField="EmployeeID" HeaderText="EmployeeID" UniqueName="EmployeeID">

</telerik:GridBoundColumn>

</Columns>

<ParentTableRelation>

<telerik:GridRelationFields DetailKeyField="EmployeeID" MasterKeyField="EmployeeID" />

</ParentTableRelation>

</telerik:GridTableView>

</DetailTables>

</MasterTableView>

</telerik:RadGrid>

C#:

public static string connection = WebConfigurationManager.ConnectionStrings["NorthwindConnectionString"].ConnectionString;

SqlConnection conn = new SqlConnection(connection);

public SqlCommand SqlCommand = new SqlCommand();

public static Int32 EmpId = 0;

protected void RadGrid1_PreRender(object sender, EventArgs e)

{

foreach (GridDataItem item in RadGrid1.MasterTableView.Items)

{

if (Convert.ToInt32(item.GetDataKeyValue("EmployeeID").ToString()) == EmpId)

{

item.Expanded = true;

}

protected void RadGrid1_InsertCommand(object sender, GridCommandEventArgs e)

{

GridEditFormInsertItem insertItem = (GridEditFormInsertItem)e.Item;

Int32 Id = Convert.ToInt32((insertItem["EmployeeID"].Controls[0] as TextBox).Text);

string firstname = (insertItem["FirstName"].Controls[0] as TextBox).Text;

string lastname = (insertItem["LastName"].Controls[0] as TextBox).Text;

SqlCommand SqlCommand = new SqlCommand("Insert into Employees(EmployeeID,FirstName,LastName) values(@EmployeeID,@FirstName,@LastName)", conn);

SqlCommand.Parameters.Add(new SqlParameter("@EmployeeID", Id));

SqlCommand.Parameters.Add(new SqlParameter("@FirstName", firstname));

SqlCommand.Parameters.Add(new SqlParameter("@LastName", lastname));

conn.Open();

int count = SqlCommand.ExecuteNonQuery();

conn.Close();

EmpId = Id;

}

Thanks,
Shinu.