Find Label Control in Repeater Asp.net
- by user2769165
I am using repeater and I want to find the label control in my repeater. here is my code
<asp:Repeater ID="friendRepeater" runat="server">
<table cellpadding="0" cellspacing="0">
<ItemTemplate>
<tr style=" width:700px; height:120px;">
<td>
<div style=" padding-left:180px;">
<div id="leftHandPost" style="float:left; width:120px; height:120px; border: medium solid #cdaf95; padding-top:5px;">
<div id="childLeft" style=" padding-left:5px;">
<div id="photo" style=" border: thin solid black; width:100px;height:100px;">
<asp:Image id="photoImage" runat="server" ImageUrl='<%# String.Concat("Images/", Eval("Picture")) %>' Width="100px" Height="100px" />
</div>
</div><!--childLeft-->
</div><!--leftHandPost-->
</div>
</td>
<td>
<div id="rightHandPost" style=" float:right; padding-right:260px;">
<div id="childRight" style="width:400px; height:120px; border: medium solid #cdaf95; padding-top:5px; padding-left:10px;">
<strong><asp:Label id="lblName" runat="server"><%# Eval("PersonName") %></asp:Label></strong><br />
<div style=" float:right; padding-right:10px;"><asp:Button runat="server" Text="Add" onClick="add" /></div><br />
<asp:Label id="lblID" runat="server"><%# Eval("PersonID") %></asp:Label><br />
<asp:Label id="lblEmail" runat="server"><%# Eval("Email") %></asp:Label>
</div><!--childRight-->
</div><!--rightHandPost-->
</td>
</tr>
</ItemTemplate>
<AlternatingItemTemplate>
<tr style=" width:700px; height:120px;">
<td>
<div style=" padding-left:180px;">
<div id="Div1" style="float:left; width:120px; height:120px; border: medium solid #cdaf95; padding-top:5px;">
<div id="Div2" style="padding-left:5px;">
<div id="Div3" style=" border: thin solid black; width:100px;height:100px;">
<asp:Image id="photoImage" runat="server" ImageUrl='<%# String.Concat("Images/", Eval("Picture")) %>' Width="100px" Height="100px" />
</div>
</div><!--childLeft-->
</div><!--leftHandPost-->
</div>
</td>
<td>
<div id="Div4" style=" float:right; padding-right:260px;">
<div id="Div5" style="width:400px; height:120px; border: medium solid #cdaf95; padding-top:5px; padding-left:10px;">
<strong><asp:Label id="lblName" runat="server"><%# Eval("PersonName")%></asp:Label></strong>
<div style=" float:right; padding-right:10px;"><asp:Button id="btnAdd" runat="server" Text="Add" onClick="add"></asp:Button></div><br />
<br />
<asp:Label id="lblID" runat="server"><%# Eval("PersonID") %></asp:Label><br />
<asp:Label id="lblEmail" runat="server"><%# Eval("Email") %></asp:Label>
</div><!--childRight-->
</div><!--rightHandPost-->
</td>
</tr>
</AlternatingItemTemplate>
<FooterTemplate>
</table>
</FooterTemplate>
</asp:Repeater>
Here is the code behind for the add button.
protected void add(object sender, EventArgs e)
{
DateTime date = DateTime.Now;
System.Web.UI.WebControls.Label la = (System.Web.UI.WebControls.Label)friendRepeater.FindControl("PersonID");
String id = la.Text;
try
{
MySqlConnection connStr = new MySqlConnection();
connStr.ConnectionString = "Server = localhost; Database = healthlivin; Uid = root; Pwd = khei92;";
String insertFriend = "INSERT INTO contactFriend(friendID, PersonID, PersonIDB, date) values (@id, @personIDA, @personIDB, @date)";
MySqlCommand cmdInsertStaff = new MySqlCommand(insertFriend, connStr);
cmdInsertStaff.Parameters.AddWithValue("@id", "F000004");
cmdInsertStaff.Parameters.AddWithValue("@personIDA", "M000001");
cmdInsertStaff.Parameters.AddWithValue("@personIDB", id);
cmdInsertStaff.Parameters.AddWithValue("@date", date);
connStr.Open();
cmdInsertStaff.ExecuteNonQuery();
MessageBox.Show("inserted");
connStr.Close();
}
catch (Exception ex)
{
MessageBox.Show(ex.ToString());
}
}
I have get the error of Object reference not set to an instance of an object. I think is because there are no value in the Label. The Find Control are not working. May I know how can fix this problem? Thank you very much
