its very urgent

Posted Date: 19 Nov 2008 Posted By: Dhurva singh Member Level: Silver Points: 1 Responses: 1

1)MAKE A ASPX PAGE AND PASTE IT
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<script language="javascript" type="text/javascript">
function setFocus(j)
{
document.getElementById('Name'+j).focus();
}
var i = 1;
function Create()
{
createTextbox.innerHTML = createTextbox.innerHTML +"<input type=text name='Name"+i+"' />"
document.getElementById('hdcount').value=i;
i=i+1;
}
</script>
</head>
<body>
<form id="form1" runat="server">
<asp:TreeView ID="TreeView2" runat="server" ExpandDepth="1" Width="30%">
<Nodes>
<asp:TreeNode Text="Master" Value="Master">
<asp:TreeNode NavigateUrl="~/Master/mastercountry.aspx" Text="Country" Value="Country">
</asp:TreeNode>
</asp:TreeNode>
</Nodes>
</asp:TreeView>
<asp:TextBox ID="txtName" runat="server"></asp:TextBox><asp:LinkButton ID="LinkButton1" runat="server" OnClientClick="Create();return false;">addmore</asp:LinkButton>
<asp:HiddenField ID="hdcount" runat="server" />
<asp:Button ID="Save" runat="server" BackColor="#400000" ForeColor="White" OnClick="Save_Click"
Text="Button" /> <div id="createTextbox">
</div> </form>
</body>
</html>
2)in cs page paste in save button click
System.Text.StringBuilder strName = new System.Text.StringBuilder();

strName.Append(txtName.Text + ",");
if (int.Parse(hdcount.Value) >= 0)
{
for (int i = 1; i <= int.Parse(hdcount.Value); i++)
{
strName.Append(Request.Form["Name" + i].ToString() + ",");
}
}

string name = strName.ToString();//ur all names with dynamic values
Response.Write("satyendra");
}
click add more thn fill submit 1 error generate whn u delete tree contron thn page execute successfully why pls chk this erro which is coming with tree control pls do correct code

Responses

Author: Pavani 19 Nov 2008

Member Level: Gold

Rating:

Points: 6

Hi

First when I copied your application as you specified, it was giving error at the following line:

if (int.Parse(hdcount.Value) >= 0)

I couldn't get the logic exactly and what input must be given in the textbox and what will contain in the hidden field.

The error is because, initially hidden value doesn't have any value and you are trying to compare it. So first hidden field must be assigned some value.

Sorry I couldn't help you much about it... but if the you are also getting the error at same line as specified above, then you are getting it because of null value in the hidden field.

Regards,
Pavani.

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