how send textbox value listview with button to another page

hi everyone ,i want to sent value of textbox in listview use button to another page,i use this code but program take an error that:

Object reference not set to an instance of an object.

protected void addtobasket_Click(object sender, System.EventArgs e)

{

string count2 = (((sender as Button).Parent as ListViewItem).FindControl("txtcount") as TextBox).Text;

}

Hi,

You can use GridView OnSelectedIndexChanged Event.

Suppose this is your grid view code :

<asp:GridView ID="GridView1" runat="server" HeaderStyle-BackColor="#3AC0F2" HeaderStyle-ForeColor="White"

AutoGenerateColumns="false" OnSelectedIndexChanged = "OnSelectedIndexChanged">

<asp:BoundField DataField="Name" HeaderText="Name" ItemStyle-Width="150" />

<asp:TemplateField HeaderText="Country" ItemStyle-Width="150">

<asp:Label ID="lblCountry" runat="server" Text='<%# Eval("Country") %>'>asp:Label>

ItemTemplate>

asp:TemplateField>

<asp:ButtonField Text="Select" CommandName="Select" ItemStyle-Width="150" />

Columns>

asp:GridView>

Then your code will be like this :

protected void OnSelectedIndexChanged(object sender, EventArgs e)

{

//Accessing BoundField Column

string name = GridView1.SelectedRow.Cells[0].Text;

//Now Here You Can Add This Name Value in ListBox.

}

So use Same logic. For more details check this sample :

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