The GridView fired event RowEditing which wasn't handled

Question

using System;
using System.Collections.Generic;
using System.Configuration;
using System.Data;
using System.Data.SqlClient;
using System.IO;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace AppManagementConsole
{
    public partial class _Default : Page
    {
        string BuildUploadPath = ConfigurationManager.AppSettings["DirectoryPath"] + "Files/";
        string ReleaseNotesUpPath = ConfigurationManager.AppSettings["DirectoryPath"] + "ReleaseNotes/";

    protected void Page_Load(object sender, EventArgs e)
    {
        cpBuildDate.SelectedDate = DateTime.Now;
        getBuildData();
    }

    public void getBuildData()
    {
        //Select Build List
        SqlCommand selectCommand = new SqlCommand("Select * from tblBuildList");

        try
        {
            //Connect to DB
            using (SqlConnection conRDB = new SqlConnection(ConfigurationManager.ConnectionStrings["conRDB"].ConnectionString))
            {
                SqlDataAdapter selectAdapater = new SqlDataAdapter(selectCommand.CommandText, conRDB);

                DataSet dsBuilds = new DataSet();
                selectAdapater.Fill(dsBuilds);

                //Populate Webpage GV
                gvDataBind(dsBuilds);
            }
        }

        catch (Exception ex)
        {
        }
    }


    public void gvDataBind(DataSet dsBuilds)
    {
        gvBuildList.Dispose();
        gvBuildList.DataSource = dsBuilds;
        gvBuildList.DataBind();
    }

    protected void gvBuildList_RowEditing(object sender, GridViewEditEventArgs e)
    {
        gvBuildList.PageIndex = e.NewEditIndex;
        //Bind data to the GridView control.
        getBuildData();
    }

    protected void btnSubmit_Click(object sender, EventArgs e)
    {
        //Upload Files
        UploadFiles();

        //Update SQL Table
        AddBuildInfo(txtProduct.Text, txtPlatform.Text, cpBuildDate.SelectedDate, txtPublisher.Text, txtVersion.Text, BuildUploadPath,FileUpBuild.FileName, ReleaseNotesUpPath, FileUpRelease.FileName, txtComments.Text);
    }

    private void UploadFiles()
    {
        #region Build
        string tempfileDir = @"C:\Publish\TempFileStorage\";
        if (FileUpBuild.HasFile)
        {
            try
            {
                if (!Directory.Exists(tempfileDir))
                {
                    Directory.CreateDirectory(tempfileDir);
                }
                FileUpBuild.SaveAs(@"C:\Publish\TempFileStorage\" + FileUpBuild.FileName);
                FTP.FtpUpload(BuildUploadPath, FileUpBuild.FileName, tempfileDir + FileUpBuild.FileName);
                //FileUpBuild.SaveAs();
                //FileUpBuild.FileContent();
            }
            catch (Exception ex)
            {
            }
            finally
            {
                File.Delete(@"C:\Publish\TempFileStorage\" + FileUpBuild.FileName);
            }
        }
        #endregion

        #region ReleaseNotes
        if (FileUpRelease.HasFile)
        {
            try
            {
                if (!Directory.Exists(tempfileDir))
                {
                    Directory.CreateDirectory(tempfileDir);
                }
                FileUpRelease.SaveAs(@"C:\Publish\TempFileStorage\" + FileUpRelease.FileName);
                FTP.FtpUpload( ReleaseNotesUpPath, FileUpRelease.FileName, tempfileDir + FileUpRelease.FileName);
                //FileUpBuild.SaveAs();
                //FileUpBuild.FileContent();
            }
            catch (Exception ex)
            {
            }
            finally
            {
                File.Delete(@"C:\Publish\TempFileStorage\" + FileUpRelease.FileName);
            }
        }
        #endregion

    }

    private void AddBuildInfo(string product, string platform, DateTime builddate, string publisher, string version, string location, string filename, string releaseloc, string releasefile, string comment)
    {
        try
        {
            using (SqlConnection conRDB = new SqlConnection(ConfigurationManager.ConnectionStrings["conRDB"].ConnectionString))
            {
                SqlCommand insertCommand = new SqlCommand("Insert into tblBuildList " +
                                                "Values('" + product + "'," +
                                                        "'" + platform + "'," +
                                                        "'" + builddate + "'," +
                                                        "'" + publisher + "'," +
                                                        "'" + version + "'," +
                                                        "'" + location + "'," +
                                                        "'" + filename + "'," +
                                                        "'" + releaseloc + "'," +
                                                        "'" + releasefile + "'," +
                                                        "'" + comment + "')", conRDB);
                conRDB.Open();
                insertCommand.ExecuteNonQuery();

                getBuildData();
                conRDB.Close();
            }
        }

        catch (Exception ex)
        {
        }
    }

    protected void btnUpBuild_Click(object sender, EventArgs e)
    {
        string tempfileDir = @"C:\Publish\TempFileStorage\";
        if (FileUpBuild.HasFile)
        {
            try
            {
                if (!Directory.Exists(tempfileDir))
                {
                    Directory.CreateDirectory(tempfileDir);
                }
                FileUpBuild.SaveAs(@"C:\Publish\TempFileStorage\" + FileUpBuild.FileName);
                FTP.FtpUpload(BuildUploadPath, FileUpBuild.FileName, tempfileDir + FileUpBuild.FileName);
                //FileUpBuild.SaveAs();
                //FileUpBuild.FileContent();
            }
            catch (Exception ex)
            {
            }
            finally
            {
                File.Delete(@"C:\Publish\TempFileStorage\" + FileUpBuild.FileName);
            }
        }
    }

    protected void btnUpRelease_Click(object sender, EventArgs e)
    {
        string tempfileDir = @"C:\Publish\TempFileStorage\";
        if (FileUpRelease.HasFile)
        {
            try
            {
                if (!Directory.Exists(tempfileDir))
                {
                    Directory.CreateDirectory(tempfileDir);
                }
                FileUpRelease.SaveAs(@"C:\Publish\TempFileStorage\" + FileUpRelease.FileName);
                FTP.FtpUpload( ReleaseNotesUpPath, FileUpRelease.FileName, tempfileDir + FileUpRelease.FileName);
                //FileUpBuild.SaveAs();
                //FileUpBuild.FileContent();
            }
            catch (Exception ex)
            {
            }
            finally
            {
                File.Delete(@"C:\Publish\TempFileStorage\" + FileUpRelease.FileName);
            }
        }
    }

}

Above is my code behind

Below is my .aspx page

<div id="Addnewbuild">
    <h3>Add a New Build</h3>
    <table>
        <tr>
            <th>
                <asp:Label ID="lblHeader1" runat="server">Product</asp:Label>
            </th>
            <th>
                <asp:Label ID="lblHeader2" runat="server">Platform</asp:Label>
            </th>
            <th>
                <asp:Label ID="lblHeader3" runat="server">Build Date</asp:Label>
            </th>
            <th>
                <asp:Label ID="lblHeader31" runat="server">Publisher</asp:Label>
            </th>
            <th>
                <asp:Label ID="lblHeader4" runat="server">Version #</asp:Label>
            </th>
            <th>
                <asp:Label ID="lblHeader5" runat="server">Build</asp:Label>
            </th>
            <th>
                <asp:Label ID="lblHeader6" runat="server">Release Notes</asp:Label>
            </th>
            <th>
                <asp:Label ID="lblHeader7" runat="server">Comments</asp:Label>
            </th>
        </tr>
        <tr>
            <td>
                <asp:TextBox ID="txtProduct" runat="server" Width="150px"></asp:TextBox>
            </td>
            <td>
                <asp:TextBox ID="txtPlatform" runat="server" Width="75px"></asp:TextBox>
            </td>
            <td>
                <ew:CalendarPopup ID="cpBuildDate" ControlDisplay="TextBoxButton" Text="Change Date"
                    runat="server" SelectedDate="" VisibleDate="" Visible="True" Enabled="True" Width="100px">
                </ew:CalendarPopup>
            </td>
            <td>
                <asp:TextBox ID="txtPublisher" runat="server" Width="75px"></asp:TextBox>
            </td>
            <td>
                <asp:TextBox ID="txtVersion" runat="server" Width="75px"></asp:TextBox>
            </td>
            <td>
                <asp:FileUpload ID="FileUpBuild" runat="server" />
                <!--<asp:Button ID="btnUpBuild" runat="server" Text="Upload Build" OnClick="btnUpBuild_Click" />-->
            </td>
            <td>
                <asp:FileUpload ID="FileUpRelease" runat="server" />
                <!--<asp:Button ID="btnUpRelease" runat="server" Text="Upload Release Notes" OnClick="btnUpRelease_Click" />-->
            </td>
            <td>
                <asp:TextBox ID="txtComments" runat="server" Width="100px" TextMode="MultiLine"></asp:TextBox>
            </td>
        </tr>
    </table>

    <asp:Button ID="btnSubmit" Text="Submit" runat="server" OnClick="btnSubmit_Click" />
</div>
<br />
<br />
<br />

<div id="buildlist">
    <h3>Build List</h3>
            <asp:GridView ID="gvBuildList" runat="server" AutoGenerateColumns="False" AllowPaging="True" OnRowEditing="gvBuildList_RowEditing" AutoGenerateEditButton="True">
                <Columns>
                    <asp:TemplateField HeaderText="Product">
                        <ItemTemplate>
                            <asp:Label ID="lblProduct" runat="server" Text='<%#Eval("ProductName")%>'></asp:Label>
                        </ItemTemplate>
                        <EditItemTemplate>
                            <asp:TextBox ID="txtGVProduct" runat="server" Text='<%#Eval("ProductName")%>'></asp:TextBox>
                        </EditItemTemplate>
                    </asp:TemplateField>
                    <asp:TemplateField HeaderText="Platform">
                        <ItemTemplate>
                            <asp:Label ID="lblplatform" runat="server" Text='<%#Eval("Platform")%>'></asp:Label>
                        </ItemTemplate>
                        <EditItemTemplate>
                            <asp:TextBox ID="txtGVPlatform" runat="server" Text='<%#Eval("Platform")%>'></asp:TextBox>
                        </EditItemTemplate>
                    </asp:TemplateField>
                    <asp:TemplateField HeaderText="Build Date">
                        <ItemTemplate>
                            <asp:Label ID="lblbldDate" runat="server" Text='<%#Eval("BuildDate")%>'></asp:Label>
                        </ItemTemplate>
                        <EditItemTemplate>
                            <asp:TextBox ID="txtGVbldDate" runat="server" Text='<%#Eval("BuildDate")%>'></asp:TextBox>
                        </EditItemTemplate>
                    </asp:TemplateField>
                    <asp:TemplateField HeaderText="Publisher">
                        <ItemTemplate>
                            <asp:Label ID="lblPublisher" runat="server" Text='<%#Eval("Publisher")%>'></asp:Label>
                        </ItemTemplate>
                        <EditItemTemplate>
                            <asp:TextBox ID="txtGVPublisher" runat="server" Text='<%#Eval("Publisher")%>'></asp:TextBox>
                        </EditItemTemplate>
                    </asp:TemplateField>
                    <asp:TemplateField HeaderText="Version #">
                        <ItemTemplate>
                            <asp:Label ID="lblVersion" runat="server" Text='<%#Eval("VersionNumber")%>'></asp:Label>
                        </ItemTemplate>
                        <EditItemTemplate>
                            <asp:TextBox ID="txtGVVersion" runat="server" Text='<%#Eval("VersionNumber")%>'></asp:TextBox>
                        </EditItemTemplate>
                    </asp:TemplateField>
                    <asp:TemplateField HeaderText="Build">
                        <ItemTemplate>
                            <asp:Label ID="lblbldLocation" runat="server" Text='<%#Eval("FileName")%>'></asp:Label>
                        </ItemTemplate>
                        <EditItemTemplate>
                            <asp:TextBox ID="txtGVbldLocation" runat="server" Text='<%#Eval("FileName")%>'></asp:TextBox>
                        </EditItemTemplate>
                    </asp:TemplateField>
                    <asp:TemplateField HeaderText="Release Notes">
                        <ItemTemplate>
                            <asp:Label ID="lblRelease" runat="server" Text='<%#Eval("ReleaseFileName")%>'></asp:Label>
                        </ItemTemplate>
                        <EditItemTemplate>
                            <asp:TextBox ID="txtGVRelease" runat="server" Text='<%#Eval("ReleaseFileName")%>'></asp:TextBox>
                        </EditItemTemplate>
                    </asp:TemplateField>
                    <asp:TemplateField HeaderText="Comments">
                        <ItemTemplate>
                            <asp:Label ID="lblComments" runat="server" Text='<%#Eval("Comments")%>'></asp:Label>
                        </ItemTemplate>
                        <EditItemTemplate>
                            <asp:TextBox ID="txtGVComments" runat="server" Text='<%#Eval("Comments")%>'></asp:TextBox>
                        </EditItemTemplate>
                    </asp:TemplateField>
                    <asp:CommandField ShowEditButton="True" ButtonType="Button" />
                    <asp:CommandField ShowDeleteButton="True" ButtonType="Button" />
                    <asp:TemplateField HeaderText="Actions">
                        <ItemTemplate>
                            <asp:ImageButton ID="btnDwnld" runat="server" ImageURL="Images/hard-drive-download.png" Width="20" Height="20" />
                            <asp:ImageButton ID="btnEmail" runat="server" ImageURL="Images/email-icon.png" Width="20" Height="20" />
                        </ItemTemplate>
                    </asp:TemplateField>
                </Columns>
            </asp:GridView>
</div>

Above is my GridView code, I have about 8 other columns too but I removed them.

Even though I have the row Editing method to catch any edits, my page keeps on throwing the error:

The GridView 'gvBuildList' fired event RowEditing which wasn't handled.

Description:

An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details:

System.Web.HttpException: The GridView 'gvBuildList' fired event RowEditing which wasn't handled.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

HttpException (0x80004005): The GridView 'gvBuildList' fired event RowEditing which wasn't handled.
System.Web.UI.WebControls.GridView.OnRowEditing(GridViewEditEventArgs e) +1588857 System.Web.UI.WebControls.GridView.HandleEdit(Int32 rowIndex) +43
System.Web.UI.WebControls.GridView.HandleEvent(EventArgs e, Boolean causesValidation, String validationGroup) +611
System.Web.UI.WebControls.GridView.RaisePostBackEvent(String eventArgument) +205
System.Web.UI.WebControls.GridView.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +13
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +13
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +9643314 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1724

Any ideas?

Answer 1

You can fix it by adding an empty event

protected void grd_RowDeleting(object sender, GridViewDeleteEventArgs e)
{

}