在过滤GridView之后，我被困在编辑编辑点下拉列表（即下拉列表放在gridview之外）。 当我在过滤gridview后单击editlink时，它会使整个网格的起始行可编辑。 我想在ASP.NET而不是J-Query或Ajax中执行此操作。 任何人，请帮我这个??? 这是我的代码：`
protected void FillGrid()
{
//String StudentSectionID = Convert.ToString(ddlsectionid.SelectedValue);
SqlConnection con = new SqlConnection(ConfigurationManager.ConnectionStrings["Final Year Project"].ToString());
con.Open();
string query = " SELECT St.StudentID, StudentNo, StudentPassword, StudentName, Cl.StudentClassName, Cl.StudentClassID,Se.StudentSectionID,Ge.StudentGenderID,Gu.StudentGuardianID,Tr.StudentTransportID,Se.StudentSectionName, StudentRollno, StudentSession, Ge.StudentGenderName, StudentPhone,StudentAddress, StudentEmail, Gu.StudentGuardianName, StudentReligion,Tr.StudentTransportRouteNo, StudentDOB,StudentFees from Student St Inner join Class Cl ON St.StudentClassID = Cl.StudentClassID Inner Join Section Se ON St.StudentSectionID = Se.StudentSectionID Inner Join Gender Ge ON Ge.StudentGenderID = St.StudentGenderID Inner Join Guardian Gu ON Gu.StudentGuardianID = St.StudentGuardianID Inner Join Transport Tr ON Tr.StudentTransportID = St.StudentTransportID";
SqlCommand cmd = new SqlCommand(query, con);
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
con.Close();
gv_student.DataSource = ds;
gv_student.DataBind();
}
protected void ddlsectionid_SelectedIndexChanged(object sender, EventArgs e)
{
string StudentSectionName = Convert.ToString(ddlsectionid.SelectedItem);
SqlConnection oconn = new SqlConnection(ConfigurationManager.ConnectionStrings["Final Year Project"].ToString());
oconn.Open();
SqlCommand ocmd = new SqlCommand("SELECT St.StudentID,StudentNo,StudentPassword, StudentName, Cl.StudentClassName, Se.StudentSectionName,Se.StudentSectionID, StudentRollno, StudentSession, Ge.StudentGenderName, StudentPhone, StudentAddress, StudentEmail, Gu.StudentGuardianName, StudentReligion, Tr.StudentTransportRouteNo, StudentDOB,StudentFees from Student St Inner join Class Cl ON St.StudentClassID = Cl.StudentClassID Inner Join Section Se ON St.StudentSectionID = Se.StudentSectionID Inner Join Gender Ge ON Ge.StudentGenderID = St.StudentGenderID Inner Join Guardian Gu ON Gu.StudentGuardianID = St.StudentGuardianID Inner Join Transport Tr ON Tr.StudentTransportID = St.StudentTransportID where Se.StudentSectionName='"+StudentSectionName+"'", oconn);
SqlDataAdapter oda = new SqlDataAdapter(ocmd);
SqlCommandBuilder builder = new SqlCommandBuilder(oda);
DataSet ds = new DataSet();
oda.Fill(ds);
gv_student.DataSource = ds;
gv_student.DataBind();
}
protected void gv_student_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
if ((e.Row.RowState & DataControlRowState.Edit) > 0)
{
DropDownList ddlclassid = (DropDownList)e.Row.FindControl("ddlclassid");
DataTable dt;
string SQL = "SELECT * FROM Class";
string sConstr = ConfigurationManager.ConnectionStrings["Final Year Project"].ConnectionString;
using (SqlConnection conn = new SqlConnection(sConstr))
{
using (SqlCommand comm = new SqlCommand(SQL, conn))
{
conn.Open();
using (SqlDataAdapter da = new SqlDataAdapter(comm))
{
dt = new DataTable("tbl");
da.Fill(dt);
}
}
}
ddlclassid.DataSource = dt;
ddlclassid.DataTextField = "StudentClassName";
ddlclassid.DataValueField = "StudentClassID";
ddlclassid.DataBind();
ddlclassid.SelectedValue = ((DataRowView)e.Row.DataItem)["StudentClassID"].ToString();
}
}
// For Section
if (e.Row.RowType == DataControlRowType.DataRow)
{
if ((e.Row.RowState & DataControlRowState.Edit) > 0)
{
DropDownList ddlsectionid = (DropDownList)e.Row.FindControl("ddlsectionid");
DataTable dt1;
string SQL1 = "SELECT * FROM Section";
string sConstr1 = ConfigurationManager.ConnectionStrings["Final Year Project"].ConnectionString;
using (SqlConnection conn = new SqlConnection(sConstr1))
{
using (SqlCommand comm = new SqlCommand(SQL1, conn))
{
conn.Open();
using (SqlDataAdapter da = new SqlDataAdapter(comm))
{
dt1 = new DataTable("tbl");
da.Fill(dt1);
}
}
}
ddlsectionid.DataSource = dt1;
ddlsectionid.DataTextField = "StudentSectionName";
ddlsectionid.DataValueField = "StudentSectionID";
ddlsectionid.DataBind();
ddlsectionid.SelectedValue = ((DataRowView)e.Row.DataItem)["StudentSectionID"].ToString();
}
}
//For Gender
if (e.Row.RowType == DataControlRowType.DataRow)
{
if ((e.Row.RowState & DataControlRowState.Edit) > 0)
{
DropDownList ddlgenderid = (DropDownList)e.Row.FindControl("ddlgenderid");
DataTable dt2;
string SQL2 = "SELECT * FROM Gender";
string sConstr1 = ConfigurationManager.ConnectionStrings["Final Year Project"].ConnectionString;
using (SqlConnection conn = new SqlConnection(sConstr1))
{
using (SqlCommand comm = new SqlCommand(SQL2, conn))
{
conn.Open();
using (SqlDataAdapter da = new SqlDataAdapter(comm))
{
dt2 = new DataTable("tbl");
da.Fill(dt2);
}
}
}
ddlgenderid.DataSource = dt2;
ddlgenderid.DataTextField = "StudentGenderName";
ddlgenderid.DataValueField = "StudentGenderID";
ddlgenderid.DataBind();
ddlgenderid.SelectedValue = ((DataRowView)e.Row.DataItem)["StudentGenderID"].ToString();
}
}
//For Guardian
if (e.Row.RowType == DataControlRowType.DataRow)
{
if ((e.Row.RowState & DataControlRowState.Edit) > 0)
{
DropDownList ddlguardianid = (DropDownList)e.Row.FindControl("ddlguardianid");
DataTable dt3;
string SQL3 = "SELECT * FROM Guardian";
string sConstr1 = ConfigurationManager.ConnectionStrings["Final Year Project"].ConnectionString;
using (SqlConnection conn = new SqlConnection(sConstr1))
{
using (SqlCommand comm = new SqlCommand(SQL3, conn))
{
conn.Open();
using (SqlDataAdapter da = new SqlDataAdapter(comm))
{
dt3 = new DataTable("tbl");
da.Fill(dt3);
}
}
}
ddlguardianid.DataSource = dt3;
ddlguardianid.DataTextField = "StudentGuardianName";
ddlguardianid.DataValueField = "StudentGuardianID";
ddlguardianid.DataBind();
ddlguardianid.SelectedValue = ((DataRowView)e.Row.DataItem)["StudentGuardianID"].ToString();
}
}
//For Transport
if (e.Row.RowType == DataControlRowType.DataRow)
{
if ((e.Row.RowState & DataControlRowState.Edit) > 0)
{
DropDownList ddltransportid = (DropDownList)e.Row.FindControl("ddltransportid");
DataTable dt4;
string SQL4 = "SELECT * FROM Transport";
string sConstr1 = ConfigurationManager.ConnectionStrings["Final Year Project"].ConnectionString;
using (SqlConnection conn = new SqlConnection(sConstr1))
{
using (SqlCommand comm = new SqlCommand(SQL4, conn))
{
conn.Open();
using (SqlDataAdapter da = new SqlDataAdapter(comm))
{
dt4 = new DataTable("tbl");
da.Fill(dt4);
}
}
}
ddltransportid.DataSource = dt4;
ddltransportid.DataTextField = "StudentTransportRouteNo";
ddltransportid.DataValueField = "StudentTransportID";
ddltransportid.DataBind();
ddltransportid.SelectedValue = ((DataRowView)e.Row.DataItem)["StudentTransportID"].ToString();
}
}
}
protected void gv_student_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
int StudentID = Convert.ToInt32(gv_student.DataKeys[e.RowIndex].Value);
SqlConnection oconn = new SqlConnection(ConfigurationManager.ConnectionStrings["Final Year Project"].ToString());
oconn.Open();
SqlCommand ocmd = new SqlCommand();
ocmd.CommandText = "DELETE FROM Student WHERE StudentID=@StudentID";
ocmd.Parameters.AddWithValue("@StudentID", StudentID);
ocmd.Connection = oconn;
ocmd.ExecuteNonQuery();
oconn.Close();
FillGrid();
}
protected void gv_student_RowEditing(object sender, GridViewEditEventArgs e)
{
gv_student.EditIndex = e.NewEditIndex;
FillGrid();
}
protected void gv_student_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
int StudentID = int.Parse(((Label)(gv_student.Rows[e.RowIndex].Cells[1].FindControl("lbl_ID"))).Text);
string StudentNo = ((TextBox)(gv_student.Rows[e.RowIndex].Cells[1].FindControl("txtno"))).Text;
string StudentPassword = ((TextBox)(gv_student.Rows[e.RowIndex].Cells[1].FindControl("txtpassword"))).Text;
string StudentName = ((TextBox)(gv_student.Rows[e.RowIndex].Cells[1].FindControl("txtname"))).Text;
string StudentRollno = ((TextBox)(gv_student.Rows[e.RowIndex].Cells[1].FindControl("txtrollno"))).Text;
string StudentSession = ((TextBox)(gv_student.Rows[e.RowIndex].Cells[1].FindControl("txtsession"))).Text;
string StudentPhone = ((TextBox)(gv_student.Rows[e.RowIndex].Cells[1].FindControl("txtphone"))).Text;
string StudentAddress = ((TextBox)(gv_student.Rows[e.RowIndex].Cells[1].FindControl("txtaddress"))).Text;
string StudentEmail = ((TextBox)(gv_student.Rows[e.RowIndex].Cells[1].FindControl("txtemail"))).Text;
string StudentReligion = ((TextBox)(gv_student.Rows[e.RowIndex].Cells[1].FindControl("txtreligion"))).Text;
string StudentDOB = ((TextBox)(gv_student.Rows[e.RowIndex].Cells[1].FindControl("txtdob"))).Text;
string StudentFees = ((TextBox)(gv_student.Rows[e.RowIndex].Cells[1].FindControl("txtfees"))).Text;
int StudentClassID = int.Parse(((DropDownList)(gv_student.Rows[e.RowIndex].Cells[1].FindControl("ddlclassid"))).SelectedValue);
int StudentSectionID = int.Parse(((DropDownList)(gv_student.Rows[e.RowIndex].FindControl("ddlsectionid"))).SelectedValue);
int StudentGenderID = int.Parse(((DropDownList)(gv_student.Rows[e.RowIndex].Cells[1].FindControl("ddlgenderid"))).SelectedValue);
int StudentGuardianID = int.Parse(((DropDownList)(gv_student.Rows[e.RowIndex].Cells[1].FindControl("ddlguardianid"))).SelectedValue);
int StudentTransportID = int.Parse(((DropDownList)(gv_student.Rows[e.RowIndex].Cells[1].FindControl("ddltransportid"))).SelectedValue);
SqlConnection oconn = new SqlConnection(ConfigurationManager.ConnectionStrings["Final Year Project"].ToString());
oconn.Open();
SqlCommand ocmd = new SqlCommand();
ocmd.CommandText = "UPDATE Student SET StudentNo=@StudentNo, StudentPassword=@StudentPassword, StudentName=@StudentName,StudentRollno=@StudentRollno,StudentSession=@StudentSession,StudentPhone=@StudentPhone,StudentAddress=@StudentAddress,StudentEmail=@StudentEmail,StudentReligion=@StudentReligion,StudentDOB=@StudentDOB,StudentFees=@StudentFees,StudentTransportID=@StudentTransportID,StudentGuardianID=@StudentGuardianID,StudentGenderID=@StudentGenderID,StudentSectionID=@StudentSectionID,StudentClassID=@StudentClassID WHERE StudentID=@StudentID";
ocmd.Parameters.AddWithValue("@StudentID", StudentID);
ocmd.Parameters.AddWithValue("@StudentClassID", StudentClassID);
ocmd.Parameters.AddWithValue("@StudentSectionID", StudentSectionID);
ocmd.Parameters.AddWithValue("@StudentGenderID", StudentGenderID);
ocmd.Parameters.AddWithValue("@StudentGuardianID", StudentGuardianID);
ocmd.Parameters.AddWithValue("@StudentTransportID", StudentTransportID);
ocmd.Parameters.AddWithValue("@StudentFees", StudentFees);
ocmd.Parameters.AddWithValue("@StudentDOB", StudentDOB);
ocmd.Parameters.AddWithValue("@StudentReligion", StudentReligion);
ocmd.Parameters.AddWithValue("@StudentEmail", StudentEmail);
ocmd.Parameters.AddWithValue("@StudentAddress", StudentAddress);
ocmd.Parameters.AddWithValue("@StudentPhone", StudentPhone);
ocmd.Parameters.AddWithValue("@StudentSession", StudentSession);
ocmd.Parameters.AddWithValue("@StudentRollno", StudentRollno);
ocmd.Parameters.AddWithValue("@StudentName", StudentName);
ocmd.Parameters.AddWithValue("@StudentPassword", StudentPassword);
ocmd.Parameters.AddWithValue("@StudentNo", StudentNo);
ocmd.Connection = oconn;
ocmd.ExecuteNonQuery();
gv_student.EditIndex = -1;
FillGrid();
oconn.Close();
}
protected void gv_student_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
{
gv_student.EditIndex = -1;
FillGrid();
}