在gridview中过滤两个下拉列表时值会更改 [英] Value changes while filtering two dropdownlist in gridview
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问题描述
嗨
过滤两个下拉列表时过滤值会发生变化。实际上我有两个下拉列表1.Age和2.Salary ...如果我选择Age say（20-30）和Salary（ 40000-50000）结果应该是过滤两者。
我尝试过：
Hi
The filtering value changes while filtering two dropdownlist.Actually I have two dropdown List 1.Age and 2.Salary ...If I select Age say (20-30) and Salary (40000-50000) the result should come at filtering both.
What I have tried:
<pre>protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
// bind();
BindGrid();
BindAge();
BindSalary();
}
}
protected void bind()
{
cn.Open();
SqlCommand cmd = new SqlCommand("gvempdetails", cn);
cmd.Parameters.AddWithValue("@Action", "SELECT");
cmd.CommandType = CommandType.StoredProcedure;
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataSet ds = new DataSet();
da.Fill(ds);
cn.Close();
if (ds.Tables[0].Rows.Count > 0)
{
gvDetails.DataSource = ds;
gvDetails.DataBind();
}
else
{
ds.Tables[0].Rows.Add(ds.Tables[0].NewRow());
gvDetails.DataSource = ds;
gvDetails.DataBind();
int columncount = gvDetails.Rows[0].Cells.Count;
gvDetails.Rows[0].Cells.Clear();
gvDetails.Rows[0].Cells.Add(new TableCell());
gvDetails.Rows[0].Cells[0].ColumnSpan = columncount;
gvDetails.Rows[0].Cells[0].Text = "Enter the details";
}
}
protected void gvDetails_RowCommand(object sender, GridViewCommandEventArgs e)
{
if (e.CommandName.Equals("Add"))
{
TextBox txtEmpId = (TextBox)gvDetails.FooterRow.FindControl("txtempid");
TextBox txtEmpName = (TextBox)gvDetails.FooterRow.FindControl("txtempname1");
TextBox txtEmpDep = (TextBox)gvDetails.FooterRow.FindControl("txtdep1");
TextBox txtAge = (TextBox)gvDetails.FooterRow.FindControl("txtage1");
TextBox txtSal = (TextBox)gvDetails.FooterRow.FindControl("txtsal1");
string Id = txtEmpId.Text;
string name = txtEmpName.Text;
string department = txtEmpDep.Text;
string age = txtAge.Text;
string salary = txtSal.Text;
INSERTEmployee(Id, name, department, age, salary);
gvDetails.EditIndex = -1;
bind();
}
}
protected void INSERTEmployee(string Id, string name, string department, string age, string salary)
{
SqlCommand cmd = new SqlCommand();
cn.Open();
cmd.Connection = cn;
cmd.CommandType = CommandType.StoredProcedure;
cmd.CommandText = "gvempdetails";
cmd.Parameters.Add(new SqlParameter("@Action", SqlDbType.VarChar, 50));
cmd.Parameters.Add(new SqlParameter("@EMPLOYEEID", int.Parse(age.Trim())));
cmd.Parameters.Add(new SqlParameter("@EMPLOYEENAME", SqlDbType.VarChar, 50));
cmd.Parameters.Add(new SqlParameter("@DEPARTMENT", SqlDbType.VarChar, 50));
cmd.Parameters.Add(new SqlParameter("@AGE", SqlDbType.VarChar, 50));
cmd.Parameters.Add(new SqlParameter("@SALARY", int.Parse(salary.Trim())));
cmd.Parameters["@Action"].Value = "INSERT";
cmd.Parameters["@EMPLOYEEID"].Value = Id;
cmd.Parameters["@EMPLOYEENAME"].Value = name;
cmd.Parameters["@DEPARTMENT"].Value = department;
cmd.Parameters["@AGE"].Value = age;
cmd.Parameters["@SALARY"].Value = salary;
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataTable dt = new DataTable();
da.Fill(dt);
gvDetails.DataSource = dt;
gvDetails.DataBind();
cn.Close();
}
protected void gvDetails_RowUpdating(object sender, GridViewUpdateEventArgs e)
{
Label EmpId = (Label)gvDetails.Rows[e.RowIndex].FindControl("lblempid");
TextBox txtEmpName = (TextBox)gvDetails.Rows[e.RowIndex].FindControl("txtempname");
TextBox txtEmpDep = (TextBox)gvDetails.Rows[e.RowIndex].FindControl("txtdep");
TextBox txtAge = (TextBox)gvDetails.Rows[e.RowIndex].FindControl("txtage");
TextBox txtSal = (TextBox)gvDetails.Rows[e.RowIndex].FindControl("txtsal");
string Id = EmpId.Text;
string name = txtEmpName.Text;
string department = txtEmpDep.Text;
string age = txtAge.Text;
string salary = txtSal.Text;
UpdateEmployee(Id, name, department, age, salary);
gvDetails.EditIndex = -1;
bind();
}
protected void UpdateEmployee(string Id, string name, string department, string age, string salary)
{
SqlCommand cmd = new SqlCommand();
cn.Open();
cmd.Connection = cn;
cmd.CommandType = CommandType.StoredProcedure;
cmd.CommandText = "gvempdetails";
cmd.Parameters.Add(new SqlParameter("@Action", SqlDbType.VarChar, 50));
cmd.Parameters.Add(new SqlParameter("@EMPLOYEEID", SqlDbType.Int));
cmd.Parameters.Add(new SqlParameter("@EMPLOYEENAME", SqlDbType.VarChar, 50));
cmd.Parameters.Add(new SqlParameter("@DEPARTMENT", SqlDbType.VarChar, 50));
cmd.Parameters.Add(new SqlParameter("@AGE", SqlDbType.VarChar, 30));
cmd.Parameters.Add(new SqlParameter("@SALARY", SqlDbType.Int));
cmd.Parameters["@Action"].Value = "UPDATE";
cmd.Parameters["@EMPLOYEEID"].Value = Convert.ToInt32(Id.ToString());
cmd.Parameters["@EMPLOYEENAME"].Value = name;
cmd.Parameters["@DEPARTMENT"].Value = department;
cmd.Parameters["@AGE"].Value = age;
cmd.Parameters["@SALARY"].Value = Convert.ToInt32(salary.ToString());
//cmd.Parameters["@SALARY"].Value = Convert.ToInt32(salary.ToString());
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataTable dt = new DataTable();
da.Fill(dt);
gvDetails.DataSource = dt;
gvDetails.DataBind();
cn.Close();
}
protected void gvDetails_RowEditing(object sender, GridViewEditEventArgs e)
{
gvDetails.EditIndex = e.NewEditIndex;
bind();
}
protected void gvDetails_RowCancelingEdit(object sender, GridViewCancelEditEventArgs e)
{
gvDetails.EditIndex = -1;
bind();
}
protected void DeleteEmployee(string id)
{
SqlCommand cmd = new SqlCommand();
cn.Open();
cmd.Connection = cn;
cmd.CommandType = CommandType.StoredProcedure;
cmd.CommandText = "gvempdetails";
cmd.Parameters.Add(new SqlParameter("@Action", SqlDbType.VarChar, 50));
cmd.Parameters.Add(new SqlParameter("@EMPLOYEEID", int.Parse(id.Trim())));
cmd.Parameters["@Action"].Value = "DELETE";
cmd.Parameters["@EMPLOYEEID"].Value = id;
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataTable dt = new DataTable();
da.Fill(dt);
gvDetails.DataSource = dt;
gvDetails.DataBind();
cn.Close();
}
protected void gvDetails_RowDeleting(object sender, GridViewDeleteEventArgs e)
{
Label EmpId = (Label)gvDetails.Rows[e.RowIndex].FindControl("lblempid");
string id = EmpId.Text;
DeleteEmployee(id);
gvDetails.EditIndex = -1;
bind();
}
protected void OnSelectedIndexChanged(object sender, EventArgs e)
{
}
protected void OnPaging(object sender, GridViewPageEventArgs e)
{
gvDetails.PageIndex = e.NewPageIndex;
this.bind();
}
protected void BindSalary()
{
DataTable dt = new DataTable();
cn.Open();
SqlCommand cmd = new SqlCommand("Select * from Salary1", cn);
SqlDataAdapter da = new SqlDataAdapter(cmd);
//DataSet ds = new DataSet();
da.Fill(dt);
cn.Close();
ddlAddSalary1.DataSource = dt;
ddlAddSalary1.DataTextField = "Salary";
ddlAddSalary1.DataValueField = "Salary";
ddlAddSalary1.DataBind();
ddlAddSalary1.Items.Insert(0, new ListItem("--Select--"));
}
protected void ddlAddSalary1_SelectedIndexChanged1(object sender, EventArgs e)
{
BindGrid();
}
protected void BindAge()
{
DataTable dt = new DataTable();
cn.Open();
SqlCommand cmd = new SqlCommand("Select * from Age", cn);
SqlDataAdapter da = new SqlDataAdapter(cmd);
//DataSet ds = new DataSet();
da.Fill(dt);
cn.Close();
ddlAge.DataSource = dt;
ddlAge.DataTextField = "Age";
ddlAge.DataValueField = "Age";
ddlAge.DataBind();
ddlAge.Items.Insert(0, new ListItem("--Select--"));
}
protected void ddlAge_SelectedIndexChanged(object sender, EventArgs e)
{
BindGrid();
}
protected void gvDetails_OnRowDataBound(object sender, GridViewRowEventArgs e)
{
}
private void BindGrid()
{
string query = " select * from gvdetails17 ";
SqlCommand cmd = new SqlCommand();
cmd.Connection = cn;
if (ddlAddSalary1.SelectedValue != "")
{
string[] sal = ddlAddSalary1.SelectedValue.Split('-');
string from = sal[0];
string to = sal[1];
query += " and Sal between @fromsal and @tosal ";
cmd.Parameters.AddWithValue("@fromsal", from);
cmd.Parameters.AddWithValue("@tosal", to);
}
if (ddlAge.SelectedValue != "")
{
string[] ages = ddlAge.SelectedValue.Split('-');
string from = ages[0];
string to = ages[1];
query += " and Sal between @fromage and @toage ";
cmd.Parameters.AddWithValue("@fromage", from);
cmd.Parameters.AddWithValue("@toage", to);
}
cmd.CommandText = query;
DataTable dt = new DataTable();
cmd.CommandType = CommandType.Text;
SqlDataAdapter da = new SqlDataAdapter(cmd);
da.Fill(dt);
gvDetails.DataSource = dt;
gvDetails.DataBind();
}
}
}
推荐答案
private void BindGrid( )
{
string query = " select * from gvdetails17 WHERE 1=1 ";
SqlCommand cmd = new SqlCommand();
cmd.Connection = cn;
if (ddlAddSalary1.SelectedValue != "")
{
string[] sal = ddlAddSalary1.SelectedValue.Split('-');
string from = sal[0];
string to = sal[1];
query += " and Sal between @fromsal and @tosal ";
cmd.Parameters.AddWithValue("@fromsal", from);
cmd.Parameters.AddWithValue("@tosal", to);
}
if (ddlAge.SelectedValue != "")
{
string[] ages = ddlAge.SelectedValue.Split('-');
string from = ages[0];
string to = ages[1];
query += " and Age between @fromage and @toage ";
cmd.Parameters.AddWithValue("@fromage", from);
cmd.Parameters.AddWithValue("@toage", to);
}
cmd.CommandText = query;
cmd.CommandType = CommandType.Text;
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataTable dt = new DataTable();
da.Fill(dt);
gvDetails.DataSource = dt;
gvDetails.DataBind();
}
protected void ddlAddSalary1_SelectedIndexChanged1(object sender, EventArgs e)
{
BindGrid();
}
protected void ddlAge_SelectedIndexChanged(object sender, EventArgs e)
{
BindGrid();
}
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