Henrik Mikkelsen

NA
3
5.8k

Gridview updating

Jan 25 2013 4:42 AM

Heey all

i have a gridview where there is a FileUpload, and i trying to get it op update my database

I have tryed almost every thing

my FrontEnd code:

<asp:GridView ID="gvEditProducts" runat="server" AutoGenerateColumns="False" AllowPaging="True"

DataSourceID="ObjEditProduct" onrowediting="gvEditProducts_RowEditing"

onrowupdating="gvEditProducts_RowUpdating">

<asp:TemplateField HeaderText="ProductID" InsertVisible="False"

SortExpression="ProductID">

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

</EditItemTemplate>

<asp:Label ID="lblProductID" runat="server" Text='<%# Bind("ProductID") %>'></asp:Label>

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="ProductName" SortExpression="ProductName">

<asp:TextBox ID="txtProductName" runat="server" Text='<%# Bind("ProductName") %>'></asp:TextBox>

</EditItemTemplate>

<asp:Label ID="lblProductName" runat="server" Text='<%# Bind("ProductName") %>'></asp:Label>

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="CategoryID" SortExpression="CategoryID">

<%--<asp:TextBox ID="TextBox2" runat="server" Text='<%# Bind("CategoryID") %>'></asp:TextBox>--%>

<asp:DropDownList ID="ddlCategory" runat="server" AutoPostBack="True" DataSourceID="ObjCategory"

DataTextField="CategoryName" DataValueField="CategoryID" SelectedValue='<%# Bind("CategoryID") %>'>

</asp:DropDownList>

<asp:ObjectDataSource ID="ObjCategory" runat="server" OldValuesParameterFormatString="original_{0}"

SelectMethod="GetCategories" TypeName="DataSet1TableAdapters.FL_CategoryTableAdapter">

</asp:ObjectDataSource>

</EditItemTemplate>

<asp:Label ID="CategoryID" runat="server" Text='<%# Bind("CategoryID") %>'></asp:Label>

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="ProductDescription"

SortExpression="ProductDescription">

<asp:TextBox ID="txtProductDescription" runat="server"

Text='<%# Bind("ProductDescription") %>'></asp:TextBox>

</EditItemTemplate>

<asp:Label ID="lblProductDescription" runat="server" Text='<%# Bind("ProductDescription") %>'></asp:Label>

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="ProductPrice" SortExpression="ProductPrice">

<asp:TextBox ID="txtProductPrice" runat="server" Text='<%# Bind("ProductPrice") %>'></asp:TextBox>

</EditItemTemplate>

<asp:Label ID="lblProductPrice" runat="server" Text='<%# Bind("ProductPrice") %>'></asp:Label>

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="ProductAmount" SortExpression="ProductAmount">

<asp:TextBox ID="txtProductAmount" runat="server" Text='<%# Bind("ProductAmount") %>'></asp:TextBox>

</EditItemTemplate>

<asp:Label ID="lblProductAmount" runat="server" Text='<%# Bind("ProductAmount") %>'></asp:Label>

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="ProductCreatetDate"

SortExpression="ProductCreatetDate">

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

</EditItemTemplate>

<asp:Label ID="lblProductCreatetDate" runat="server" Text='<%# Bind("ProductCreatetDate") %>'></asp:Label>

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField HeaderText="ProductImage" SortExpression="ProductImage">

<%--<asp:TextBox ID="TextBox6" runat="server" Text='<%# Bind("ProductImage") %>'></asp:TextBox>--%>

<asp:FileUpload ID="fuProductImage" runat="server" />

</EditItemTemplate>

<%--<asp:Label ID="Label6" runat="server" Text='<%# Bind("ProductImage") %>'></asp:Label>--%>

<asp:Image ID="Image1" runat="server" ImageUrl='<%# Bind("ProductImage") %>' Width="50px" Height="50px" />

</ItemTemplate>

</asp:TemplateField>

<asp:TemplateField ShowHeader="False">

<asp:LinkButton ID="btnUpdate" runat="server" CausesValidation="True"

CommandName="Update" Text="Opdater"></asp:LinkButton>

 <asp:LinkButton ID="btnCancel" runat="server" CausesValidation="False"

CommandName="Cancel" Text="Fortryd"></asp:LinkButton>

</EditItemTemplate>

<asp:LinkButton ID="btnEdit" runat="server" CausesValidation="False"

CommandName="Edit" Text="Redigere"></asp:LinkButton>

</ItemTemplate>

</asp:TemplateField>

</Columns>

</asp:GridView>

<asp:ObjectDataSource ID="ObjEditProduct" runat="server"

OldValuesParameterFormatString="original_{0}" SelectMethod="GetProducts"

TypeName="DataSet1TableAdapters.FL_ProductsTableAdapter"

UpdateMethod="UpdateProducts">

<asp:Parameter Name="ProductName" Type="String" />

<asp:Parameter Name="CategoryID" Type="Int32" />

<asp:Parameter Name="ProductDescription" Type="String" />

<asp:Parameter Name="ProductPrice" Type="Decimal" />

<asp:Parameter Name="ProductAmount" Type="Int32" />

<asp:Parameter Name="ProductCreatetDate" Type="String" />

<asp:Parameter Name="ProductImage" Type="String" />

<asp:Parameter Name="Original_ProductID" Type="Int32" />

</UpdateParameters>

</asp:ObjectDataSource>

<asp:Label ID="lblOutput" runat="server" Text=""></asp:Label>

<asp:ImageButton ID="imgPicture" runat="server" Visible="False" />

my BackEnd code:

protected void gvEditProducts_RowUpdating(object sender, GridViewUpdateEventArgs e)

{

TextBox txtProductName = (TextBox)gvEditProducts.Rows[e.RowIndex].Cells[1].FindControl("txtProductName");

DropDownList ddlCategory = (DropDownList)gvEditProducts.Rows[e.RowIndex].Cells[2].FindControl("ddlCategory");

TextBox txtProductDescription = (TextBox)gvEditProducts.Rows[e.RowIndex].Cells[3].FindControl("txtProductDescription");

TextBox txtProductPrice = (TextBox)gvEditProducts.Rows[e.RowIndex].Cells[4].FindControl("txtProductPrice");

TextBox txtProductAmount = (TextBox)gvEditProducts.Rows[e.RowIndex].Cells[5].FindControl("txtProductAmount");

FileUpload fuProductImage = (FileUpload)gvEditProducts.Rows[e.RowIndex].Cells[7].FindControl("fuProductImage");

// Initialize variables

string sSavePath;

string sThumbExtension;

int intThumbWidth;

int intThumbHeight;

// Set constant values

sSavePath = "~/ProductImages/";

sThumbExtension = "_thumb";

intThumbWidth = 100;

intThumbHeight = 80;

// If file field isn't empty

if (fuProductImage.PostedFile != null)

{

// Check file size (mustn't be 0)

HttpPostedFile myFile = fuProductImage.PostedFile;

int nFileLen = myFile.ContentLength;

if (nFileLen == 0)

{

lblOutput.Text = "No file was uploaded.";

return;

}

// Check file extension (must be JPG)

if (System.IO.Path.GetExtension(myFile.FileName).ToLower() != ".jpg")

{

lblOutput.Text = "The file must have an extension of JPG";

return;

}

// Read file into a data stream

byte[] myData = new Byte[nFileLen];

myFile.InputStream.Read(myData, 0, nFileLen);

// Make sure a duplicate file doesn't exist. If it does, keep on appending an

// incremental numeric until it is unique

string sFilename = System.IO.Path.GetFileName(myFile.FileName);

int file_append = 0;

while (System.IO.File.Exists(Server.MapPath(sSavePath + sFilename)))

{

file_append++;

sFilename = System.IO.Path.GetFileNameWithoutExtension(myFile.FileName)

+ file_append.ToString() + ".jpg";

}

// Save the stream to disk

System.IO.FileStream newFile

= new System.IO.FileStream(Server.MapPath(sSavePath + sFilename),

System.IO.FileMode.Create);

newFile.Write(myData, 0, myData.Length);

newFile.Close();

// Check whether the file is really a JPEG by opening it

System.Drawing.Image.GetThumbnailImageAbort myCallBack =

new System.Drawing.Image.GetThumbnailImageAbort(ThumbnailCallback);

Bitmap myBitmap;

try

{

myBitmap = new Bitmap(Server.MapPath(sSavePath + sFilename));

// If jpg file is a jpeg, create a thumbnail filename that is unique.

file_append = 0;

string sThumbFile = System.IO.Path.GetFileNameWithoutExtension(myFile.FileName)

+ sThumbExtension + ".jpg";

while (System.IO.File.Exists(Server.MapPath(sSavePath + sThumbFile)))

{

file_append++;

sThumbFile = System.IO.Path.GetFileNameWithoutExtension(myFile.FileName) +

file_append.ToString() + sThumbExtension + ".jpg";

}

// Save thumbnail and output it onto the webpage

System.Drawing.Image myThumbnail

= myBitmap.GetThumbnailImage(intThumbWidth,

intThumbHeight, myCallBack, IntPtr.Zero);

myThumbnail.Save(Server.MapPath(sSavePath + sThumbFile));

imgPicture.ImageUrl = sSavePath + sFilename;

// Displaying success information

lblOutput.Text = "File uploaded successfully!";

// Destroy objects

myThumbnail.Dispose();

myBitmap.Dispose();

}

catch (ArgumentException errArgument)

{

// The file wasn't a valid jpg file

lblOutput.Text = "The file wasn't a valid jpg file.";

System.IO.File.Delete(Server.MapPath(sSavePath + sFilename));

}

string connection = WebConfigurationManager.ConnectionStrings["FarmorLopperConnectionString"].ConnectionString;

SqlConnection conn = new SqlConnection(connection);

SqlCommand comm;

comm = new SqlCommand("UPDATE FL_Products SET ProductName = @ProductName,CategoryID = @CategoryID, ProductDescription = @ProductDescription, ProductPrice = @ProductPrice, ProductAmount = @ProductAmount, ProductImage = @ProductImage)", conn);

//ProductID = @ProductID

//comm.Parameters.Add("@ProductID", SqlDbType.Int).Value = Convert.ToInt32(gvEditProducts.DataKeys[e.RowIndex].Values[1].ToString());

comm.Parameters.Add("@ProductName", System.Data.SqlDbType.NVarChar).Value = txtProductName.Text;

comm.Parameters.Add("@ProductDescription", SqlDbType.NVarChar).Value = txtProductDescription.Text;

comm.Parameters.Add("@ProductPrice", SqlDbType.Money).Value = Convert.ToDouble(txtProductPrice.Text);

comm.Parameters.Add("@ProductAmount", SqlDbType.Int).Value = Convert.ToInt32(txtProductAmount.Text);

comm.Parameters.Add("@CategoryID", SqlDbType.Int).Value = Convert.ToInt32(ddlCategory.SelectedValue);

comm.Parameters.AddWithValue("@ProductImage", (imgPicture.ImageUrl == null ? (object)DBNull.Value : (object)imgPicture.ImageUrl));

//comm.ExecuteNonQuery();

try

{

conn.Open();

comm.ExecuteNonQuery();

}

//catch (Exception err)

//{

// lblOutput.Text = err.ToString();

//}

finally

{

conn.Close();

}

and i get this error: (the error place is highlightet with Red)

System.Data.SqlClient.SqlException (0x80131904): Incorrect syntax near ')'. at System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction) at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction) at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose) at System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady) at System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString) at System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite) at System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean asyncWrite) at System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(TaskCompletionSource`1 completion, String methodName, Boolean sendToPipe, Int32 timeout, Boolean asyncWrite) at System.Data.SqlClient.SqlCommand.ExecuteNonQuery() at Admin_Products_TestEditProducts.gvEditProducts_RowUpdating(Object sender, GridViewUpdateEventArgs e) in c:\Online Websites\Hoved\FarmorsLopper\Admin\Products\TestEditProducts.aspx.cs:line 278 ClientConnectionId:8e646372-3ffb-449b-8555-e6122e279b0f

Answers (1)

gridview

Data binding Problem for