问题1:
<asp:TemplateColumn HeaderText="农林牧渔业">
<ItemTemplate>
<asp:TextBox ID="txt_dgcynlmy" Width=100% Runat=server Text='<%# DataBinder.Eval(Container, "DataItem.intny") %>'></asp:TextBox>
</ItemTemplate>
</asp:TemplateColumn>dataGird的列就是这样写的
我想取里面的值该这么写?
// 农林牧渔业数
int intnys = int.Parse(((TextBox)this.dg_Djzcqk.FindControl("txt_dgcynlmy")).ToString());我这样写不对!问题2我直接取DataGird第1行第2列的值
该位置控件ID=“txt_GzBj” 该如何取?
<asp:TemplateColumn HeaderText="农林牧渔业">
<ItemTemplate>
<asp:TextBox ID="txt_dgcynlmy" Width=100% Runat=server Text='<%# DataBinder.Eval(Container, "DataItem.intny") %>'></asp:TextBox>
</ItemTemplate>
</asp:TemplateColumn>dataGird的列就是这样写的
我想取里面的值该这么写?
// 农林牧渔业数
int intnys = int.Parse(((TextBox)this.dg_Djzcqk.FindControl("txt_dgcynlmy")).ToString());我这样写不对!问题2我直接取DataGird第1行第2列的值
该位置控件ID=“txt_GzBj” 该如何取?
<%@ Import Namespace="System.Data" %>
<html>
<script runat="server">
// The Cart and CartView objects temporarily store the data source
// for the DataGrid control while the page is being processed.
DataTable Cart = new DataTable();
DataView CartView;
void Page_Load(Object sender, EventArgs e)
{
// With a database, use an select query to retrieve the data. Because
// the data source in this example is an in-memory DataTable, retrieve
// the data from session state if it exists; otherwise, create the data
// source.
GetSource(); // The DataGrid control maintains state between posts to the server;
// it only needs to be bound to a data source the first time the page
// is loaded or when the data source is updated.
if (!IsPostBack)
{ BindGrid(); }
}
void ItemsGrid_Edit(Object sender, DataGridCommandEventArgs e)
{ // Set the EditItemIndex property to the index of the item clicked
// in the DataGrid control to enable editing for that item. Be sure
// to rebind the DateGrid to the data source to refresh the control.
ItemsGrid.EditItemIndex = e.Item.ItemIndex;
BindGrid(); }
void ItemsGrid_Cancel(Object sender, DataGridCommandEventArgs e)
{ // Set the EditItemIndex property to -1 to exit editing mode.
// Be sure to rebind the DateGrid to the data source to refresh
// the control.
ItemsGrid.EditItemIndex = -1;
BindGrid(); }
void ItemsGrid_Update(Object sender, DataGridCommandEventArgs e)
{ // Retrieve the text boxes that contain the values to update.
// For bound columns, the edited value is stored in a TextBox.
// The TextBox is the 0th control in a cell's Controls collection.
// Each cell in the Cells collection of a DataGrid item represents
// a column in the DataGrid control.
TextBox qtyText = (TextBox)e.Item.Cells[3].Controls[0];
TextBox priceText = (TextBox)e.Item.Cells[4].Controls[0];
// Retrieve the updated values.
String item = e.Item.Cells[2].Text;
String qty = qtyText.Text;
String price = priceText.Text;
DataRow dr;
// With a database, use an update command to update the data.
// Because the data source in this example is an in-memory
// DataTable, delete the old row and replace it with a new one.
// Remove the old entry and clear the row filter.
CartView.RowFilter = "Item='" + item + "'";
if (CartView.Count > 0)
{
CartView.Delete(0);
}
CartView.RowFilter = "";
// ***************************************************************
// Insert data validation code here. Be sure to validate the
// values entered by the user before converting to the appropriate
// data types and updating the data source.
// *************************************************************** // Add the new entry.
dr = Cart.NewRow();
dr[0] = Convert.ToInt32(qty);
dr[1] = item; // If necessary, remove the '$' character from the price before
// converting it to a Double.
if(price[0] == '$')
{
dr[2] = Convert.ToDouble(price.Substring(1));
}
else
{
dr[2] = Convert.ToDouble(price);
} Cart.Rows.Add(dr);
// Set the EditItemIndex property to -1 to exit editing mode.
// Be sure to rebind the DateGrid to the data source to refresh
// the control.
ItemsGrid.EditItemIndex = -1;
BindGrid(); }
{ // Set the data source and bind to the Data Grid control.
ItemsGrid.DataSource = CartView;
ItemsGrid.DataBind(); } void GetSource()
{ // For this example, the data source is a DataTable that is stored
// in session state. If the data source does not exist, create it;
// otherwise, load the data.
if (Session["ShoppingCart"] == null)
{ // Create the sample data.
DataRow dr;
// Define the columns of the table.
Cart.Columns.Add(new DataColumn("Qty", typeof(Int32)));
Cart.Columns.Add(new DataColumn("Item", typeof(String)));
Cart.Columns.Add(new DataColumn("Price", typeof(Double))); // Store the table in session state to persist its values
// between posts to the server.
Session["ShoppingCart"] = Cart;
// Populate the DataTable with sample data.
for (int i = 1; i <= 9; i++)
{
dr = Cart.NewRow();
if (i % 2 != 0)
{
dr[0] = 2;
}
else
{
dr[0] = 1;
}
dr[1] = "Item " + i.ToString();
dr[2] = (1.23 * (i + 1));
Cart.Rows.Add(dr);
} } else
{ // Retrieve the sample data from session state.
Cart = (DataTable)Session["ShoppingCart"]; }
// Create a DataView and specify the field to sort by.
CartView = new DataView(Cart);
CartView.Sort="Item"; return; } void ItemsGrid_Command(Object sender, DataGridCommandEventArgs e)
{ switch(((LinkButton)e.CommandSource).CommandName)
{ case "Delete":
DeleteItem(e);
break; // Add other cases here, if there are multiple ButtonColumns in
// the DataGrid control. default:
// Do nothing.
break; } } void DeleteItem(DataGridCommandEventArgs e)
{ // e.Item is the table row where the command is raised. For bound
// columns, the value is stored in the Text property of a TableCell.
TableCell itemCell = e.Item.Cells[2];
string item = itemCell.Text; // Remove the selected item from the data source.
CartView.RowFilter = "Item='" + item + "'";
if (CartView.Count > 0)
{
CartView.Delete(0);
}
CartView.RowFilter = ""; // Rebind the data source to refresh the DataGrid control.
BindGrid(); }
</script>
<body>
<form runat="server"> <h3>DataGrid Editing Example</h3>
<asp:DataGrid id="ItemsGrid"
BorderColor="black"
BorderWidth="1"
CellPadding="3"
OnEditCommand="ItemsGrid_Edit"
OnCancelCommand="ItemsGrid_Cancel"
OnUpdateCommand="ItemsGrid_Update"
OnItemCommand="ItemsGrid_Command"
AutoGenerateColumns="false"
runat="server"> <HeaderStyle BackColor="#aaaadd">
</HeaderStyle>
<Columns> <asp:EditCommandColumn
EditText="Edit"
CancelText="Cancel"
UpdateText="Update"
HeaderText="Edit item"> <ItemStyle Wrap="False">
</ItemStyle> <HeaderStyle Wrap="False">
</HeaderStyle> </asp:EditCommandColumn> <asp:ButtonColumn
HeaderText="Delete item"
ButtonType="LinkButton"
Text="Delete"
CommandName="Delete"/>
<asp:BoundColumn HeaderText="Item"
ReadOnly="True"
DataField="Item"/>
<asp:BoundColumn HeaderText="Quantity"
DataField="Qty"/>
<asp:BoundColumn HeaderText="Price"
DataField="Price"
DataFormatString="{0:c}"/>
</Columns>
</asp:DataGrid> </form>
</body>
</html>
int intnys = int.Parse(myBox.Text);
int num = int.Parse(ts);