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Stay in edit mode and move to next row upon update

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emmons

emmons

Technical User
Oct 9, 2002
114
0
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Hello, can you show me how to stay in edit mode after the update and have the cursor drop to the leftmost textbox in the next row down for more editing? I would be most grateful and so would the library that I am helping. Thanks a lot.


<%@ Page Language="C#" ClassName="EditNamesPage" AutoEventWireup="False"
EnableSessionState="False" Debug="True"%>
<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.Data.Odbc" %>

<script runat="server">
private const string ConnStr = "Driver={MySQL ODBC 3.51 Driver};" +
"Server=localhost;Database=mydatabase;uid=myuid;pwd=mypwd;option=3";

protected override void OnInit(EventArgs e)
{
base.OnInit(e);
if(!IsPostBack)
BindDataGrid();
}

private void BindDataGrid()
{
using(OdbcConnection con = new OdbcConnection(ConnStr))
using(OdbcCommand cmd = new OdbcCommand("SELECT id, date_format(dates,'%M %e') as Date, date_format(dates,'%W') as Day, FirstName, LastName FROM Names WHERE dates BETWEEN current_date - interval '16' day AND current_date ", con))
{
con.Open();
DataGrid1.DataSource = cmd.ExecuteReader(
CommandBehavior.CloseConnection |
CommandBehavior.SingleResult);
DataGrid1.DataBind();
}
}

private void DoAddName(object sender, EventArgs e)
{
if(IsAddNameValid())
{
HtmlTable2.Visible = false;

using(OdbcConnection con = new OdbcConnection(ConnStr))
using(OdbcCommand cmd = new OdbcCommand(
"INSERT INTO Names(FirstName, LastName) VALUES (?,?)", con))
{
cmd.Parameters.Add("@FirstName", OdbcType.VarChar, 255).Value =
Textbox3.Text.Trim();
cmd.Parameters.Add("@LastName", OdbcType.VarChar, 255).Value =
Textbox4.Text.Trim();

con.Open();
cmd.ExecuteNonQuery();
BindDataGrid();

}
}
}

private void DoUpdateName(int id, string firstName, string lastName)
{
using(OdbcConnection con = new OdbcConnection(ConnStr))
using(OdbcCommand cmd = new OdbcCommand(
"UPDATE Names SET FirstName = ?, LastName = ? WHERE ID = ?", con))
{
cmd.Parameters.Add("@FirstName", OdbcType.VarChar, 255).Value =
firstName;
cmd.Parameters.Add("@LastName", OdbcType.VarChar, 255).Value =
lastName;
cmd.Parameters.Add("@ID", OdbcType.Int).Value =
id;

con.Open();
cmd.ExecuteNonQuery();
}
}

private void DoDeleteName(int id)
{
using(OdbcConnection con = new OdbcConnection(ConnStr))
using(OdbcCommand cmd = new OdbcCommand(
"DELETE FROM Names WHERE ID = ?", con))
{
cmd.Parameters.Add("@ID", OdbcType.Int).Value = id;

con.Open();
cmd.ExecuteNonQuery();
}
}

private bool IsAddNameValid()
{
HtmlTable2.Visible = true;

Requiredfieldvalidator1.Validate();
Requiredfieldvalidator2.Validate();
Regularexpressionvalidator1.Validate();
Regularexpressionvalidator2.Validate();

return (Requiredfieldvalidator1.IsValid &&
Requiredfieldvalidator2.IsValid &&
Regularexpressionvalidator1.IsValid &&
Regularexpressionvalidator2.IsValid);
}

private void DataGrid1_ItemCommand(object sender, DataGridCommandEventArgs e)
{
switch(e.CommandName)
{
case "Delete":
Literal literal1 = (Literal)e.Item.FindControl("Literal1");
DoDeleteName(Convert.ToInt32(literal1.Text));
BindDataGrid();
break;
default:
break;
}
}

private void DataGrid1_EditCommand(object sender, DataGridCommandEventArgs e)
{
HtmlTable1.Visible = false;
HtmlTable2.Visible = false;

DataGrid1.EditItemIndex = e.Item.ItemIndex;
BindDataGrid();
}

private void DataGrid1_UpdateCommand(object sender, DataGridCommandEventArgs e)
{
Literal literal1 = (Literal)e.Item.FindControl("Literal1");
TextBox textbox1 = (TextBox)e.Item.FindControl("TextBox1");
TextBox textbox2 = (TextBox)e.Item.FindControl("TextBox2");

DoUpdateName(Convert.ToInt32(literal1.Text), textbox1.Text.Trim(),
textbox2.Text.Trim());

HtmlTable1.Visible = true;
DataGrid1.EditItemIndex = -1;
BindDataGrid();
}

private void DataGrid1_CancelCommand(object sender, DataGridCommandEventArgs e)
{
HtmlTable1.Visible = true;
DataGrid1.EditItemIndex = -1;
BindDataGrid();
}
</script>

<html>
<head>
<title>Displaying/Inserting/Editing/Deleting Records from
MySQL 'Names' table</title>
<style>
body, td { font: 8pt Tahoma; }
a { color: blue; }
a:hover { color: red; }

pre { display: none; }

.stdErr { color: red; }
.stdInput { font: 8pt Tahoma; width: 100px; }
.stdButton { font: 8pt Tahoma; }
.stdBogus {width: 0px}
</style>
</head>
<body>

<p align="center"><a href="editnames.aspx">"Names" Table</a></p>

<form runat="server">
<asp:DataGrid ID="DataGrid1" HorizontalAlign="Center" CellPadding="3"
HeaderStyle-BackColor="#F7F7F7" EditItemStyle-BackColor="#F7F7F7"
AutoGenerateColumns="False" DataKeyField="ID"
OnEditCommand="DataGrid1_EditCommand"
OnUpdateCommand="DataGrid1_UpdateCommand"
OnCancelCommand="DataGrid1_CancelCommand"
OnItemCommand="DataGrid1_ItemCommand"
Runat="server">
<Columns>
<asp:TemplateColumn HeaderStyle-Width="30" HeaderText="ID">
<ItemTemplate>
<asp:Literal ID="Literal1" Text='<%#DataBinder.Eval(Container.DataItem, "ID") %>' Runat="server" />
</ItemTemplate>
</asp:TemplateColumn>

<asp:TemplateColumn HeaderStyle-Width="30" HeaderText="Date">
<ItemTemplate>
<asp:Literal ID="Literal2" Text='<%#DataBinder.Eval(Container.DataItem, "date") %>'
Runat="server" />
</ItemTemplate>
</asp:TemplateColumn>

<asp:TemplateColumn HeaderStyle-Width="30" HeaderText="Day">
<ItemTemplate>
<asp:Literal ID="Literal3" Text='<%#DataBinder.Eval(Container.DataItem, "day") %>'
Runat="server" />
</ItemTemplate>
</asp:TemplateColumn>

<asp:TemplateColumn HeaderStyle-Width="100" HeaderText="First Name">
<ItemTemplate>
<%# DataBinder.Eval(Container.DataItem, "FirstName") %>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="TextBox1" Text='<%#DataBinder.Eval(Container.DataItem, "FirstName") %>'
CssClass="stdInput" Runat="server" />
</EditItemTemplate>
</asp:TemplateColumn>

<asp:TemplateColumn HeaderStyle-Width="100" HeaderText="Last Name">
<ItemTemplate>
<%# DataBinder.Eval(Container.DataItem, "LastName") %>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox ID="Textbox2" Text='<%#DataBinder.Eval(Container.DataItem, "LastName") %>'
CssClass="stdInput" Runat="server" />
</EditItemTemplate>
</asp:TemplateColumn>

<asp:EditCommandColumn EditText="Edit"
UpdateText="Update" CancelText="Cancel" />

<asp:ButtonColumn CommandName="Delete" Text="" />
</Columns>
</asp:DataGrid>
<br>
<table id="HtmlTable1" cellspacing="0" cellpadding="3" align="center"
rules="all"
border="0" style="border-collapse:collapse;" runat="server">
<tr style="background-color: white">
<td> </td><td> </td><td> </td>
</tr>
<tr>
<td style="width:100px;">
<asp:TextBox ID="Textbox3" CssClass="stdBogus" Runat="server" />
</td>
<td style="width:100px;">
<asp:TextBox ID="Textbox4" CssClass="stdBogus" Runat="server" />
</td>
<td><a id="HtmlAnchor1" onserverclick="DoAddName" runat="server">
</a></td>
</tr>
</table>

<br>
<table id="HtmlTable2" cellspacing="0" cellpadding="3" align="center"
rules="all"
border="1" style="border-collapse:collapse;" Visible="False"
runat="server">
<tr>
<td style="background-color: #F7F7F7;width: 234px;">Errors</td>
</tr>
<tr>
<td>
<asp:RequiredFieldValidator ID="Requiredfieldvalidator1"
controlToValidate="Textbox3"
Display="None" EnableClientScript="False"
ErrorMessage="*First Name* is a required field"
Runat="server" />
<asp:RequiredFieldValidator ID="Requiredfieldvalidator2"
controlToValidate="Textbox4"
Display="None" EnableClientScript="False"
ErrorMessage="*Last Name* is a required field"
Runat="server" />
<asp:RegularExpressionValidator ID="Regularexpressionvalidator1"
controlToValidate="Textbox3"
ValidationExpression="[\w\s]{1,255}"
Display="None" EnableClientScript="False"
ErrorMessage="*First Name* contains illegal values"
Runat="server" />
<asp:RegularExpressionValidator ID="Regularexpressionvalidator2"
controlToValidate="Textbox4"
ValidationExpression="[\w\s]{1,255}"
Display="None" EnableClientScript="False"
ErrorMessage="*Last Name* contains illegal values"
Runat="server" />
<asp:ValidationSummary ID="ValidationSummary1" DisplayMode="List"
ShowSummary="True" Runat="server" />
</td>
</tr>
</table><br>
</form>

</body>
</html>

 
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