2
Answers

File saving

Celldet

Celldet

16y
2.2k
1
I have a process whereas I need to save a string from a textbox to a temp file and then hashing the file via SHA1.  I have that handled but when I create the file and write the data to the file 08 39 01 62 30 21 12 69 09 it is written in ascii and I need it written in hex as is.  So if you opened the file up in a hex editor you would see "08 39 01 62 30 21 12 69 09" with the ascii as .9.b0!.i. .
Currently I am only getting 30382033392030312036322033302032312031322036392030390D0A as my hex string in the hex editor and obviously hashing that value will not match the hash of  h08 h39 h01 h62 h30 h21 h12 h69 h09

Thanks for any and all help.
Answers (2)
0
Senthilkumar

Senthilkumar

NA 15.2k 2.4m 12y
Hi,

As per as my knowledge is concerned, yes you are right! you need to store in any one of them...

Accepted
0
Ilkin East

Ilkin East

NA 100 126.9k 12y
Thank You Senthilkumar!!

Everything is ok.What if we try to do it in windows application.I need to store it anyware.In a file,xml,database?

Thanks .

 
0
Senthilkumar

Senthilkumar

NA 15.2k 2.4m 12y
Hi,

The reason is i think you have not stored the data some where and need to add from the stored data.

I have done the example page. You can change the field name or design.

Design page:

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="AddRows.aspx.cs" Inherits="Corner_AddRows" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <table cellpadding="0" cellspacing="0" border="0" width="100%">
            <tr>
                <td style="text-align: right">
                    Enter the First Name:
                </td>
                <td>
                    <asp:TextBox ID="txtFirstName" runat="server"></asp:TextBox>
                </td>
            </tr>
            <tr>
                <td style="text-align: right">
                    Enter the Last Name:
                </td>
                <td>
                    <asp:TextBox ID="txtLastName" runat="server"></asp:TextBox>
                </td>
            </tr>
            <tr>
                <td colspan="2" style="text-align: center">
                    <asp:Button ID="btnAdd" runat="server" Text="Add" onclick="btnAdd_Click" />
                </td>
            </tr>
            <tr>
                <td colspan="2" style="text-align: center">
                    <asp:GridView ID="gvList" runat="server" CellPadding="4" ForeColor="#333333" GridLines="None"
                        Width="544px">
                        <RowStyle BackColor="#EFF3FB" />
                        <FooterStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
                        <PagerStyle BackColor="#2461BF" ForeColor="White" HorizontalAlign="Center" />
                        <SelectedRowStyle BackColor="#D1DDF1" Font-Bold="True" ForeColor="#333333" />
                        <HeaderStyle BackColor="#507CD1" Font-Bold="True" ForeColor="White" />
                        <EditRowStyle BackColor="#2461BF" />
                        <AlternatingRowStyle BackColor="White" />
                    </asp:GridView>
                </td>
            </tr>
        </table>
    </div>
    </form>
</body>
</html>


Code File:

   protected void Page_Load(object sender, EventArgs e)
    {
        
        if (Session["UsersTable"] != null)
        {
            DataTable dt = (DataTable)Session["UsersTable"];
        }
        
    }
    
    private void BindTable(DataTable dt)
    {
        gvList.DataSource = dt;
        gvList.DataBind();
        Session["UsersTable"] = dt;
    }

    protected void btnAdd_Click(object sender, EventArgs e)
    {
        DataTable dtCurrent = null;

        if (Session["UsersTable"] != null)
        {
            dtCurrent = (DataTable)Session["UsersTable"];
        }
        else
        {
            dtCurrent = CreateTable();
        }

        DataRow dRow = dtCurrent.NewRow();
        dRow["FName"] = txtFirstName.Text.Trim();
        dRow["LName"] = txtLastName.Text.Trim();
        dtCurrent.Rows.Add(dRow);
        BindTable(dtCurrent);

    }

    private DataTable CreateTable()
    {
        DataTable dtable = new DataTable();
        DataColumn dColumn = null;
        DataRow dRow = null;

        dColumn = new DataColumn();
        dColumn.ColumnName = "FName";
        dtable.Columns.Add(dColumn);

        dColumn = new DataColumn();
        dColumn.ColumnName = "LName";
        dtable.Columns.Add(dColumn);

        return dtable;
    }

Hope this will help you.



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