How to Generate Random Password

From security point of view we need to create the unique passwords so no one can easily guess it.
To fulfill these features we can make use of Random class and generate the random numbers which is unique.

Here I am going to use one label, one text box and one button:

<form id="form1" runat="server">

    <div>   

    &nbsp;

        <asp:Label ID="lblPass"runat="server"Text="Random Password : "></asp:Label>

&nbsp;&nbsp;

        <asp:TextBox ID="txtRandom"runat="server"></asp:TextBox>

        <asp:Button ID="btnRandomNum"runat="server"onclick="btnRandomNum_Click"

            Text="Generate Password" />

   

    </div>

    </form>

</body>

</html>

In code behind we will write the actual logic on button click event as below:

protected voidbtnRandomNum_Click(object sender, EventArgs e)

        {

                    

            //Set password length

            string PasswordLength = "12";           

            //Characters allowed in the new password

            string allowedChars = "";

            allowedChars = "1,2,3,4,5,6,7,8,9,0";

            allowedChars += "A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y,Z,";

            allowedChars += "a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z,";

            allowedChars += "~,!,@,#,$,%,^,&,*,+,?";

           

            //Create an array

            char[] sep = { ','};

            string[] arr = allowedChars.Split(sep);

            string randomPass = string.Empty;

            string tempPass = string.Empty;                     

            Random rand = new Random();

                      

            for (int i = 0; i < Convert.ToInt32(PasswordLength); i++)

            {

                tempPass = arr[rand.Next(0, arr.Length)];

                randomPass += tempPass;                                                          

                txtRandom.Text = randomPass;

            }

        }

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How to insert value into SharePoint list programmatically?

Inserting value into SharePoint list programmatically:

If we have list already created in SharePoint and want to add / insert value pro grammatically into the list then will use the below code.

Suppose we have a list called UserAccess and it has FirstName, LastName , Email and Status columns and we want to insert value to the list then we can use below code

protectedvoid Page_Load(objectsender, EventArgs e)

{

    SPSecurity.RunWithElevatedPrivileges(delegate()

    {

       using (SPSite spSite = new   

       SPSite(SPContext.Current.Web.Site.WebApplication.Sites[0].Url))

       {

             spSite.AllowUnsafeUpdates = true;

             using(SPWeb spWeb = spSite.OpenWeb())

             {

                 spWeb.AllowUnsafeUpdates = true;

                 SPList spList = spWeb.Lists.TryGetList("UserAccess");

                 varitemId = 0;

                 SPListItemlistItem = null;

                 if(itemId == 0)

                 {

                      listItem = spList.AddItem();

                 }

                 else

                 {

                      listItem = spList.GetItemById(itemId);

                 }

                 listItem["FirstName"] = txtFirstName.Text;

                 listItem["LastName"] = txtLastName.Text;

                 listItem["Email"] = txtEmail.Text;

                 listItem["Status"] = "Pending";

                 listItem.Update();

                 spWeb.AllowUnsafeUpdates = false;

              }

              spSite.AllowUnsafeUpdates = false;

           }

         });

  }

How to insert value into SharePoint list programmatically?

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