Question : How do I assign a default value in TextBox fields in DetailsView for Insert mode

I have a DetailsView set up to use Templates. I have values accessible to DetailsView to be stored in the empty textboxes of the Insert mode. How do I assign initial values to these textboxes (e.g. txtSMFID and txtSMS2)? Into what event would such assignment statements be placed?

Users may modify the default values (that are initially assigned programmatically); however, whatever is in in the textboxes at the time the Insert button is pressed will be written to the database table as a new row.

         
           
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          <asp:DetailsView ID="DetailsView1" runat="server" 
        AutoGenerateRows="False" 
        DataSourceID="SqlDataSource2" 
        Height="50px" 
        Width="125px" 
        DataKeyNames="SMFID" 
        Caption="Selected Record Details">
        
        <Fields>
            <asp:TemplateField HeaderText="SMFID" SortExpression="SMFID">
                <EditItemTemplate>
                    <asp:Label ID="lblSMFID" runat="server" 
                        Columns="5" 
                        Text='<%# Bind("SMFID") %>'>
                    </asp:Label>
                </EditItemTemplate>
                <InsertItemTemplate>
                    <asp:TextBox ID="txtSMFID" runat="server" 
                        Text='<%# Bind("SMFID") %>' MaxLength="10"></asp:TextBox>
                    <asp:RequiredFieldValidator ID="RequiredFieldSMFID" 
                                                runat="server" 
                                                ErrorMessage="Please enter SMFID" 
                                                ControlToValidate="txtSMFID"
                                                ValidationGroup="ValDetailsView"
                                                Display="Dynamic"
                                                Text="*" SetFocusOnError="True">
                    </asp:RequiredFieldValidator>                  
                </InsertItemTemplate>
                <ItemTemplate>
                    <asp:Label ID="lblSMFID" runat="server" Text='<%# Bind("SMFID") %>'></asp:Label>
                </ItemTemplate>
            </asp:TemplateField>
            
            <asp:TemplateField HeaderText="SMS" SortExpression="SMS">
                <EditItemTemplate>
                    <asp:TextBox ID="txtSMS" runat="server"
                        Text='<%# Bind("SMS") %>' MaxLength="10"></asp:TextBox>
                    <asp:RequiredFieldValidator ID="RequiredFieldSMS" 
                                                runat="server" 
                                                ErrorMessage="Please enter SMS" 
                                                ControlToValidate="txtSMS"
                                                ValidationGroup="ValDetailsViewEdit"
                                                Display="Dynamic"
                                                Text="*" SetFocusOnError="True">
                    </asp:RequiredFieldValidator>
                </EditItemTemplate>
                <InsertItemTemplate>
                    <asp:TextBox ID="txtSMS2" runat="server"
                        Text='<%# Bind("SMS") %>' MaxLength="10"></asp:TextBox>
                    <asp:RequiredFieldValidator ID="RequiredFieldSMS" 
                                                runat="server" 
                                                ErrorMessage="Please enter SMS" 
                                                ControlToValidate="txtSMS2"
                                                ValidationGroup="ValDetailsView"
                                                Display="Dynamic"
                                                Text="*" SetFocusOnError="True">
                    </asp:RequiredFieldValidator>
                </InsertItemTemplate>
                <ItemTemplate>
                    <asp:Label ID="lblSMS" runat="server" Text='<%# Bind("SMS") %>'></asp:Label>
                </ItemTemplate>
            </asp:TemplateField>

           
         

Answer : How do I assign a default value in TextBox fields in DetailsView for Insert mode

Well, in

{33, "B"}, {22, "C"}, {22, "D"}, {44, "E"}, {22, "D"}

you have that very duplicate entry - just remove it after it is sorted, e.g.

                       
         
           
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             #include <iomanip>
#include <iostream>
#include <string>
#include <sstream>
#include <set>
#include <vector>
#include <algorithm>

using namespace std;

struct StudentAttempt
{
   int distance;
   string studentName;
};

bool cmpEntry(StudentAttempt left, StudentAttempt right) {
   return left.distance == right.distance && left.studentName == right.studentName;
}
bool cmpAttempts(StudentAttempt left, StudentAttempt right) {
   if( left.distance < right.distance ) {
      return true;
   }
   else if( left.distance == right.distance ) {
      if( left.studentName < right.studentName ) {
         return true;
      }
      else
         return false;
   }
   else
      return false;
}

bool isDistEqual( StudentAttempt left, StudentAttempt right) {
   return ( left.distance == right.distance
      && left.studentName != right.studentName );
}

size_t printAllEqual(const vector<StudentAttempt>& v, const StudentAttempt& sa, stringstream& ss ) {

   vector<StudentAttempt>::const_iterator i = v.begin();
  size_t sz = 0;
  bool bFirst = true;

  while (i != v.end()) {

    if(isDistEqual(*i,sa)) {
    
      if (!bFirst) ss << ',';
      ss << i->studentName;
      ++sz;
    }

    ++i; 
    bFirst = false;
  }

  return sz;
}
 

int main() {

   StudentAttempt throwDist[] = {
      {50, "A"},      {22, "A"},      {16, "B"},      {44, "C"},
      {33, "D"},      {34, "E"},      {22, "F"},      {21, "G"},
      {49, "A"},      { 5, "B"},      { 2, "C"},      {22, "A"},
      {33, "B"},      {22, "C"},      {22, "D"},      {44, "E"}, {22, "D"}
   };


   set<int> handled;

   int len = sizeof( throwDist )/ sizeof( throwDist[0] );

   vector<StudentAttempt> dist(throwDist, throwDist + len);
   vector<StudentAttempt>::iterator it = dist.begin();

   sort( dist.begin(), dist.end(), cmpAttempts);

   unique( dist.begin(), dist.end(), cmpEntry); // removes identical duplicates from the sorted vector


   for( ; it != dist.end(); it++ ) {

      stringstream ss;

      pair<set<int>::iterator,bool> p = handled.insert(it->distance);

      if (!p.second) continue; // already handled

      if(0 < printAllEqual(dist,*it,ss)) 
        cout << setw(2) << (*it).distance 
           << " feet:  " << (*it).studentName << ss.str() << endl;
   }
}
           
         