Please help me in coding

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C#

Hello Sir,
I want to ask that I used three dropdown in gridview

Project,Module and Form I called all dropdown's in rowdatabound,I have to check dependency like when I select Project all Module inside project should come in dropdown Module all process will happen in gridview Please guide me how could I show dependency

Please guide me


my code is

protected void grdDaily_RowDataBound(object sender, GridViewRowEventArgs e)
   {
       if (e.Row.RowType == DataControlRowType.DataRow)
       {
           //Projects values in drodpown
           dt = DelayworkReport.fillProjects();
           ListItem lst = new ListItem("Select", "0");
           DropDownList list = (DropDownList)e.Row.Cells[5].FindControl("ddlProject");
           list.DataTextField = "ProjectABR";
           list.DataValueField = "ProjectId";
           list.DataSource = dt;
           list.DataBind();
           list.AutoPostBack = true;
           list.Items.Insert(0, lst);

           //Module Values in dropdown
           dt = DelayworkReport.fillModule(Convert.ToInt32(ViewState["ddlProject"]));
           ListItem lst1 = new ListItem("Select", "0");
           DropDownList list1 = (DropDownList)e.Row.Cells[6].FindControl("ddlModule");
           list1.DataTextField = "ModuleName";
           list1.DataValueField = "ModuleId";
           list1.DataSource = dt;
           list1.DataBind();
           //list1.Enabled = false;
           list1.AutoPostBack = true;
           list1.Items.Insert(0, lst1);

           //Form Values in dropdonwn
           dt = DelayworkReport.fillTask(Convert.ToInt32(ViewState["ddlModule"]));
           ListItem lst2 = new ListItem("Select", "0");
           DropDownList list2 = (DropDownList)e.Row.Cells[7].FindControl("ddlForm");
           list2.DataTextField = "EntityType";
           list2.DataValueField = "EntityId";
           list2.DataSource = dt;
           list2.DataBind();
           //list2.Enabled = false;
           list2.AutoPostBack = true;
           list2.Items.Insert(0, lst2);

           //Status in dropdown
           dt = DelayworkReport.fillStatus();
           ListItem lst3 = new ListItem("Select", "0");
           DropDownList list3 = (DropDownList)e.Row.Cells[9].FindControl("ddlStatus");
           list3.DataTextField = "CompletionValue";
           list3.DataValueField = "CompletionId";
           list3.DataSource = dt;
           list3.DataBind();
           list3.AutoPostBack = true;
           list3.Items.Insert(0, lst3);

           CheckBox cb = (CheckBox)e.Row.FindControl("CheckBox");

       }

   }