您知道如何通过单击“编辑”按钮在GridView上编辑记录。我编写了我的代码，当单击GridView上的Edit按钮时，会弹出一个新窗口，其中包含相应字段中给出的记录的所有详细信息。
我的程序中也有搜索功能。当用户在搜索页面上的给定字段中输入一些引用信息后单击搜索按钮时，所需的记录（如果超过1）显示在GridView列表中搜索页面的底部。如果用户想要编辑搜索记录，则使用“编辑”按钮选项。
你可以帮我指导如何在gridview中编辑搜索记录，因为当我点击Edit来更改搜索记录时，我的程序会打开数据库表中所有记录列表中的第一条记录（并且不会在新窗口中打开我点击编辑的记录。
编辑行记录的代码是：
protected void GridView1_RowEditing(object sender, GridViewEditEventArgs e)
{
//BindGridView();
lblSet.Text = GridView1.Rows[e.NewEditIndex].Cells[1].Text;
MultiView1.SetActiveView(vRecord);
btnInsert.Visible = false;
//this.lblMedium.Text = GridView1.Rows[e.NewEditIndex].Cells[1].Text;
using (SqlConnection con = new SqlConnection("Data Source=MEHDI-PC\\SQLEXPRESS;Initial Catalog=PIMS;Integrated Security=True"))
{
using (SqlCommand cmd = new SqlCommand())
{
String sql = "select [DocumentsID],[Ref],[Subject],[Src],[Dst],[Medium],[Date_Printed],[Date_Received],[Document_Type],[Action_Required],[Due_Date],[Actual_Date],[Content],[Tag],[Issue_No],[Attachment],[Notes],[Assigned_To],[Reply_Ref],[Priority],[Status],[Response] from dbo.Documents where [DocumentsId]=N'" + GridView1.Rows[e.NewEditIndex].Cells[1].Text + "'";
cmd.Connection = con;
cmd.CommandText = sql;
con.Open();
//SqlDataAdapter da = new SqlDataAdapter(sql,con);
//DataTable dt = new DataTable();
DataSet ds = new DataSet();
using (SqlDataAdapter adp = new SqlDataAdapter(cmd))
{
adp.Fill(ds);
}
this.txtRef.Text = ds.Tables[0].Rows[0][1].ToString();
this.txtSubject.Text = ds.Tables[0].Rows[0][2].ToString();
this.ddlSource.Text = ds.Tables[0].Rows[0][3].ToString();
this.ddlDestination.Text = ds.Tables[0].Rows[0][4].ToString();
this.ddlMedium.Text = ds.Tables[0].Rows[0][5].ToString();
this.txtDatePrinted.Text = ds.Tables[0].Rows[0][6].ToString();
this.txtDateReceived.Text = ds.Tables[0].Rows[0][7].ToString();
this.ddlDocumentType.Text = ds.Tables[0].Rows[0][8].ToString();
this.cbxAction.Checked = ds.Tables[0].Rows[0][9].Equals(cbxAction.Checked);
this.txtDueDate.Text = ds.Tables[0].Rows[0][10].ToString();
this.txtActualDate.Text = ds.Tables[0].Rows[0][11].ToString();
this.txtContent.Text = ds.Tables[0].Rows[0][12].ToString();
this.txtTag.Text = ds.Tables[0].Rows[0][13].ToString();
this.txtIssue.Text = ds.Tables[0].Rows[0][14].ToString();
this.txtAttachment.Text = ds.Tables[0].Rows[0][15].ToString();
this.txtNotes.Text = ds.Tables[0].Rows[0][16].ToString();
this.ddlAssignedTo.Text = ds.Tables[0].Rows[0][17].ToString();
this.txtReplyRef.Text = ds.Tables[0].Rows[0][18].ToString();
this.ddlPriority.Text = ds.Tables[0].Rows[0][19].ToString();
this.ddlStatus.Text = ds.Tables[0].Rows[0][20].ToString();
this.ddlResponse.Text = ds.Tables[0].Rows[0][21].ToString();
if (con != null)
{
con.Close();
}
搜索功能代码是：
protected void Search_Click(object sender, EventArgs e)
{
String sql = "select * from PIMS.dbo.Documents";
bool flag = false;
if (!txtRef0.Text.Equals(""))
{
if (flag == false)
{
sql = sql + " where Ref =N'" + txtRef0.Text + "'";
flag = true;
}
else
{
sql = sql + " and Ref =N'" + txtRef0.Text + "'";
}
}
if (!ddlDst.Text.Equals(""))
{
if (flag == false)
{
sql = sql + " where Dst =N'" + ddlDst.Text + "'";
flag = true;
}
else
{
sql = sql + " and Dst =N'" + ddlDst.Text + "'";
}
}
if (!ddlSrc.Text.Equals(""))
{
if (flag == false)
{
sql = sql + " where Src =N'" + ddlSrc.Text + "'";
flag = true;
}
else
{
sql = sql + " and Src =N'" + ddlSrc.Text + "'";
}
}
if (!txtSubject0.Text.Equals(""))
{
if (flag == false)
{
sql = sql + " where Subject =N'" + txtSubject0.Text + "'";
flag = true;
}
else
{
sql = sql + " and Subject =N'" + txtSubject0.Text + "'";
}
}
if (!ddlMedium0.Text.Equals(""))
{
if (flag == false)
{
sql = sql + " where Medium =N'" + ddlMedium0.Text + "'";
flag = true;
}
else
{
sql = sql + " and Medium =N'" + ddlMedium0.Text + "'";
}
}
if (!ddlDocumentType0.Text.Equals(""))
{
if (flag == false)
{
sql = sql + " where Document_Type =N'" + ddlDocumentType0.Text + "'";
flag = true;
}
else
{
sql = sql + " and Document_Type =N'" + ddlDocumentType0.Text + "'";
}
}
if (!txtContent0.Text.Equals(""))
{
if (flag == false)
{
sql = sql + " where Content LIKE N'%" + txtContent0.Text + "%'";
flag = true;
}
else
{
sql = sql + " and Content LIKE N'%" + txtContent0.Text + "%'";
}
}
if (!txtTag0.Text.Equals(""))
{
if (flag == false)
{
sql = sql + " where Tag = N'" + txtTag0.Text + "'";
flag = true;
}
else
{
sql = sql + " and Tag =N'%" + txtTag0.Text + "'";
}
}
if (!txtIssue0.Text.Equals(""))
{
if (flag == false)
{
sql = sql + " where Issue_No= N'" + txtIssue0.Text + "'";
flag = true;
}
else
{
sql = sql + " and Issue_No LIKE N'%" + txtIssue0.Text + "'";
}
}
if (!txtNotes0.Text.Equals(""))
{
if (flag == false)
{
sql = sql + " where Notes LIKE N'%" + txtNotes0.Text + "%'";
flag = true;
}
else
{
sql = sql + " and Notes LIKE N'%" + txtNotes0.Text + "%'";
}
}
if (!ddlAssignedTo0.Text.Equals(""))
{
if (flag == false)
{
sql = sql + " where Assigned_To = N'" + ddlAssignedTo0.Text + "'";
flag = true;
}
else
{
sql = sql + " and Assigned_To = N'" + ddlAssignedTo0.Text + "'";
}
}
if (!ddlPriority0.Text.Equals(""))
{
if (flag == false)
{
sql = sql + " where Priority = N'" + ddlPriority0.Text + "'";
flag = true;
}
else
{
sql = sql + " and Priority = N'" + ddlPriority0.Text + "'";
}
}
if (!ddlStatus0.Text.Equals(""))
{
if (flag == false)
{
sql = sql + " where Status = N'" + ddlStatus0.Text + "'";
flag = true;
}
else
{
sql = sql + " and Status = N'" + ddlStatus0.Text + "'";
}
}
if (!ddlResponse0.Text.Equals(""))
{
if (flag == false)
{
sql = sql + " where Response = N'" + ddlResponse0.Text + "'";
flag = true;
}
else
{
sql = sql + " and Response = N'" + ddlResponse0.Text + "'";
}
}
if (!txtReplyRef0.Text.Equals(""))
{
if (flag == false)
{
sql = sql + " where Reply_Ref = N'" + txtReplyRef0.Text + "'";
flag = true;
}
else
{
sql = sql + " and Reply_Ref = N'" + txtReplyRef0.Text + "'";
}
}
if (!txtDatePrintedF.Text.Equals("") && !txtDatePrintedT.Text.Equals(""))
{
if (flag == false)
{
sql = sql + " where Date_Printed >=N'" + DateTime.ParseExact(txtDatePrintedF.Text, "G", CultureInfo.GetCultureInfo("en-US")).ToString("yyyy-MM-dd") + "'";
flag = true;
}
else
{
sql = sql + " and Date_Printed <=N'" + DateTime.ParseExact(txtDatePrintedT.Text, "G", CultureInfo.GetCultureInfo("en-US")).ToString("yyyy-MM-dd") + "'";
}
}
if (!txtDateReceivedF.Text.Equals("") && !txtDateReceivedT.Text.Equals(""))
{
if (flag == false)
{
sql = sql + " where Date_Received >=N'" + DateTime.ParseExact(txtDateReceivedF.Text, "G", CultureInfo.GetCultureInfo("en-US")).ToString("yyyy-MM-dd") + "'";
flag = true;
}
else
{
sql = sql + " and Date_Received <=N'" + DateTime.ParseExact(txtDateReceivedT.Text, "G", CultureInfo.GetCultureInfo("en-US")).ToString("yyyy-MM-dd") + "'";
}
}
if (!txtDueDateF.Text.Equals("") && !txtDueDateT.Text.Equals(""))
{
if (flag == false)
{
sql = sql + " where Due_Date >=N'" + DateTime.ParseExact(txtDatePrintedF.Text, "G", CultureInfo.GetCultureInfo("en-US")).ToString("yyyy-MM-dd") + "'";
flag = true;
}
else
{
sql = sql + " and Due_Date <=N'" + DateTime.ParseExact(txtDatePrintedT.Text, "G", CultureInfo.GetCultureInfo("en-US")).ToString("yyyy-MM-dd") + "'";
}
}
if (!txtActualDateF.Text.Equals("") && !txtActualDateT.Text.Equals(""))
{
if (flag == false)
{
sql = sql + " where Actual_Date >=N'" + DateTime.ParseExact(txtDatePrintedF.Text, "G", CultureInfo.GetCultureInfo("en-US")).ToString("yyyy-MM-dd") + "'";
flag = true;
}
else
{
sql = sql + " and Actual_Date <=N'" + DateTime.ParseExact(txtDatePrintedT.Text, "G", CultureInfo.GetCultureInfo("en-US")).ToString("yyyy-MM-dd") + "'";
}
}
txtSQL.Text = sql;
using (SqlConnection con = new SqlConnection("Data Source=MEHDI-PC\\SQLEXPRESS;Initial Catalog=PIMS;Integrated Security=True"))
{
using (SqlCommand cmd = new SqlCommand())
{
cmd.Connection = con;
cmd.CommandText = sql+";";
//cmd.CommandType = CommandType.StoredProcedure;
con.Open();
//dataset object to get all select statement results
DataSet ds = new DataSet();
//sql dataadoptor to fill dataset
using (SqlDataAdapter adp = new SqlDataAdapter(cmd))
{
//here all select statements are fill in dataset object
adp.Fill(ds);
} this.GridView1.DataSource = ds.Tables[0]; // first select statement result
this.GridView1.DataBind();
}
if (con.State == ConnectionState.Open)
{
con.Close();
}
txtSQL.Visible = false;
MultiView1.SetActiveView(vGrid);
}
}
答案 0 :(得分：2)
您没有检索所选行，但是您正在检索datagridview中的第一行。你的代码：
this.txtRef.Text = ds.Tables[0].Rows[0][1].ToString(); //you are referring to DataSet
//first row, which will always be same
你只需改变一件事：
设置变量：
int SelectedRowIndex = GridView1.SelectedIndex; //it will return int value of selected row
然后将代码0的{{1}}索引替换为Rows，将SelectedRowIndex替换为ds.Tables[0]：
GridView1现在，它将从this.txtRef.Text = ds.Tables[0].Rows[0][1].ToString(); //your code
this.txtRef.Text = GridView1.Rows[SelectedRowIndex].Cells[0].Text.ToString(); //corrected one
//do this for your all 21 cells by changing cell indexes
中选择一行而不是gridview。
注意：
我已经改变了我的整个答案，因为您之前没有提及使用 Web控件，而不是 Windows窗体控件。
其他
这是检查任何条件的方法：
DataSet答案 1 :(得分：0)
不能简单地说 gridview.editindex = e.neweditindex
或者在其他情况下，如果你使用弹出窗口，那么我不认为它是解决行编辑命令的理想方式，因为你没有使用它的好处
反正
是否可以将密钥传递给查询以获取特定记录 然后，您可以从编辑索引行中找到数据键值 然后将此密钥与您的查询一起传递 它只会返回该特定记录，