GridView Events

markhh · #1 (**permalink**) April 26th, 2013, 08:36 AM

Hi Imar, I have entered some data into a database, Name and Date etc but what I am trying to do now is update the database entry with extra comments and the date the extra comments were entered. The extra comments can be entered fine using the update option but I am trying to automate the process of entering the date the extra comments were entered. So I was looking at using either of the RowUpdating or RowUpdated events for the GridView I cant find any code samples for this.

The table again is ‘Main’ and the field is ‘Date_Updated’

Thanks in advance
Mark

Imar · #2 (**permalink**) April 26th, 2013, 09:35 AM

It's pretty much impossible to say something without seeing code and a more detailed description. Can you elaborate and post the relevant code for your pages?

Imar

markhh · #3 (**permalink**) April 29th, 2013, 04:13 AM

Hi Imar, please see below, Date_Updated has been renamed to Date_Authorised

Regards
Mark

.aspx file

Code:

<%@PageLanguage="C#"AutoEventWireup="true"CodeFile="LineManager.aspx.cs"Inherits="AdminProtected_LineManager" %>

<!DOCTYPEhtmlPUBLIC"-//W3C//DTD XHTML 1.0 Transitional//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<htmlxmlns="http://www.w3.org/1999/xhtml">
<headrunat="server">
<title></title>
</head>
<body>
<formid="form1"runat="server">
<div>
<asp:ScriptManagerID="ScriptManager1"runat="server">
</asp:ScriptManager>
<asp:UpdatePanelID="UpdatePanel1"runat="server"UpdateMode="Conditional">
<ContentTemplate>
<br/>
<asp:DetailsViewID="DetailsView1"runat="server"AllowPaging="True"
AutoGenerateRows="False"CellPadding="4"DataKeyNames="ID"
DataSourceID="LineManager"ForeColor="#333333"GridLines="None"Height="50px"
Width="125px"DefaultMode="Edit">
<AlternatingRowStyleBackColor="White"ForeColor="#284775"/>
<CommandRowStyleBackColor="#E2DED6"Font-Bold="True"/>
<EditRowStyleBackColor="#999999"/>
<FieldHeaderStyleBackColor="#E9ECF1"Font-Bold="True"/>
<Fields>
<asp:BoundFieldDataField="ID"HeaderText="ID"InsertVisible="False"
ReadOnly="True"SortExpression="ID"/>
<asp:TemplateFieldHeaderText="Requested_By"SortExpression="Requested_By">
<EditItemTemplate>
<asp:DropDownListID="DropDownList1"runat="server"
DataSourceID="LineManagerUsers"DataTextField="Expr1"DataValueField="ID"
SelectedValue='<%# Bind("Requested_By") %>'>
</asp:DropDownList>
</EditItemTemplate>
<InsertItemTemplate>
<asp:DropDownListID="DropDownList1"runat="server"
DataSourceID="LineManagerUsers"DataTextField="Expr1"DataValueField="ID"
SelectedValue='<%# Bind("Requested_By") %>'>
</asp:DropDownList>
</InsertItemTemplate>
<ItemTemplate>
<asp:LabelID="Label1"runat="server"Text='<%# Bind("Requested_By") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:TemplateFieldHeaderText="Nature_of_Request_Repair"
SortExpression="Nature_of_Request_Repair">
<EditItemTemplate>
<asp:DropDownListID="DropDownList2"runat="server"
DataSourceID="LineManagerNature"DataTextField="Nature_of_ Repair_Request"
DataValueField="ID"SelectedValue='<%# Bind("Nature_of_Request_Repair") %>'>
</asp:DropDownList>
</EditItemTemplate>
<InsertItemTemplate>
<asp:DropDownListID="DropDownList2"runat="server"
DataSourceID="LineManagerNature"DataTextField="Nature_of_ Repair_Request"
DataValueField="ID"SelectedValue='<%# Bind("Nature_of_Request_Repair") %>'>
</asp:DropDownList>
</InsertItemTemplate>
<ItemTemplate>
<asp:LabelID="Label2"runat="server"
Text='<%# Bind("Nature_of_Request_Repair") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:BoundFieldDataField="Room_Number_Location"
HeaderText="Room_Number_Location"SortExpression="Room_Number_Location"/>
<asp:TemplateFieldHeaderText="Details"SortExpression="Details">
<EditItemTemplate>
<asp:TextBoxID="TextBox3"runat="server"Text='<%# Bind("Details") %>'
Height="75px"TextMode="MultiLine"Width="270px"></asp:TextBox>
</EditItemTemplate>
<InsertItemTemplate>
<asp:TextBoxID="TextBox3"runat="server"Text='<%# Bind("Details") %>'
Height="75px"TextMode="MultiLine"Width="270px"></asp:TextBox>
</InsertItemTemplate>
<ItemTemplate>
<asp:LabelID="Label3"runat="server"Text='<%# Bind("Details") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:BoundFieldDataField="Date_Opened"HeaderText="Date_Opened"
SortExpression="Date_Opened"/>
<asp:TemplateFieldHeaderText="Line_Manager_Comments"
SortExpression="Line_Manager_Comments">
<EditItemTemplate>
<asp:TextBoxID="TextBox4"runat="server"
Text='<%# Bind("Line_Manager_Comments") %>'Height="75px"
TextMode="MultiLine"Width="270px"></asp:TextBox>
</EditItemTemplate>
<InsertItemTemplate>
<asp:TextBoxID="TextBox4"runat="server"
Text='<%# Bind("Line_Manager_Comments") %>'Height="75px"
TextMode="MultiLine"Width="270px"></asp:TextBox>
</InsertItemTemplate>
<ItemTemplate>
<asp:LabelID="Label4"runat="server"
Text='<%# Bind("Line_Manager_Comments") %>'></asp:Label>
</ItemTemplate>
</asp:TemplateField>
<asp:BoundFieldDataField="Date_Authorised"HeaderText="Date_Authorised"
SortExpression="Date_Authorised"/>
<asp:CommandFieldShowEditButton="True"ShowInsertButton="True"/>
</Fields>
<FooterStyleBackColor="#5D7B9D"Font-Bold="True"ForeColor="White"/>
<HeaderStyleBackColor="#5D7B9D"Font-Bold="True"ForeColor="White"/>
<PagerStyleBackColor="#284775"ForeColor="White"HorizontalAlign="Center"/>
<RowStyleBackColor="#F7F6F3"ForeColor="#333333"/>
</asp:DetailsView>
<br/>
<asp:SqlDataSourceID="LineManager"runat="server"
ConnectionString="<%$ ConnectionStrings:LineManager %>"
DeleteCommand="DELETE FROM [MainTable] WHERE [ID] = @ID"
InsertCommand="INSERT INTO [MainTable] ([Requested_By], [Nature_of_Request_Repair], [Room_Number_Location], [Details], [Date_Opened], [Line_Manager_Comments], [Date_Authorised]) VALUES (@Requested_By, @Nature_of_Request_Repair, @Room_Number_Location, @Details, @Date_Opened, @Line_Manager_Comments, @Date_Authorised)"
SelectCommand="SELECT [ID], [Requested_By], [Nature_of_Request_Repair], [Room_Number_Location], [Details], [Date_Opened], [Line_Manager_Comments], [Date_Authorised] FROM [MainTable] WHERE ([Date_Authorised] IS NULL)"

UpdateCommand="UPDATE [MainTable] SET [Requested_By] = @Requested_By, [Nature_of_Request_Repair] = @Nature_of_Request_Repair, [Room_Number_Location] = @Room_Number_Location, [Details] = @Details, [Date_Opened] = @Date_Opened, [Line_Manager_Comments] = @Line_Manager_Comments, [Date_Authorised] = @Date_Authorised WHERE [ID] = @ID">
<DeleteParameters>
<asp:ParameterName="ID"Type="Int32"/>
</DeleteParameters>
<InsertParameters>
<asp:ParameterName="Requested_By"Type="Int32"/>
<asp:ParameterName="Nature_of_Request_Repair"Type="Int32"/>
<asp:ParameterName="Room_Number_Location"Type="String"/>
<asp:ParameterName="Details"Type="String"/>
<asp:ParameterName="Date_Opened"Type="DateTime"/>
<asp:ParameterName="Line_Manager_Comments"Type="String"/>
<asp:ParameterName="Date_Authorised"Type="DateTime"/>
</InsertParameters>
<UpdateParameters>
<asp:ParameterName="Requested_By"Type="Int32"/>
<asp:ParameterName="Nature_of_Request_Repair"Type="Int32"/>
<asp:ParameterName="Room_Number_Location"Type="String"/>
<asp:ParameterName="Details"Type="String"/>
<asp:ParameterName="Date_Opened"Type="DateTime"/>
<asp:ParameterName="Line_Manager_Comments"Type="String"/>
<asp:ParameterName="Date_Authorised"Type="DateTime"/>
<asp:ParameterName="ID"Type="Int32"/>
</UpdateParameters>
</asp:SqlDataSource>
<asp:SqlDataSourceID="LineManagerUsers"runat="server"
ConnectionString="<%$ ConnectionStrings:LineManager %>"
SelectCommand="SELECT ID, First_Name + ' ' + Surname AS Expr1 FROM Users">
</asp:SqlDataSource>
<asp:SqlDataSourceID="LineManagerNature"runat="server"
ConnectionString="<%$ ConnectionStrings:LineManager %>"
SelectCommand="SELECT * FROM [NatureOfRequestRepair]">
</asp:SqlDataSource>
<br/>
<asp:TimerID="Timer1"runat="server"Interval="10000"OnTick="Timer1_Tick">
</asp:Timer>
<asp:LabelID="Label1"runat="server"Text="Label"></asp:Label>

</ContentTemplate>
</asp:UpdatePanel>

</div>
</form>
</body>
</html>

Page behind file

Code:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

publicpartialclassAdminProtected_LineManager : System.Web.UI.Page
{

protectedvoid Timer1_Tick(object sender, EventArgs e)
    {
        DetailsView1.DataBind();
        UpdatePanel1.Update();
        Label1.Text = DateTime.Now.ToString();
   }
}

Imar · #4 (**permalink**) April 29th, 2013, 06:59 AM

Quote:

It's pretty much impossible to say something without seeing code and a more detailed description. Can you elaborate and post the relevant code for your pages?

You posted your code, but you haven't really explained what the problem is exactly and what you're trying to accomplish.

Also, when you post code, can you paste it in Notepad first to remove color coding? Otherwise this forum messes up the formatting.

Cheers,

Imar

markhh · #5 (**permalink**) April 29th, 2013, 08:26 AM

Hi Imar, what I am trying to do is use the GridViews event handlers, something like the RowUpdating or RowUpdated events to automatically insert the date into Date_Authorised when the update button is clicked on the Gridview.

Cheers
Mark

Imar · #6 (**permalink**) April 29th, 2013, 08:32 AM

Have you tried hooking into RowUpdating and then using the NewValues column of the e argument (of type GridViewUpdateEventArgs)?

http://msdn.microsoft.com/en-us/libr...eventargs.aspx
http://msdn.microsoft.com/en-us/libr...newvalues.aspx

My Google has thousands of examples of this.

Sorry I can't be more specific. Your messed up code (forum's fault) and limited description make it really hard to suggest something better. Ask better questions and you get better answers.

Imar

markhh · #7 (**permalink**) May 3rd, 2013, 03:45 AM

Hi Imar, and thanks for your suggestion. I will have a look

Regards
Mark

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