我正在使用BackGroundWorker类在sqlserver中插入一些值.我有这个循环来插入值.我正在使用以下代码
public void bw_Convert_DoWork(object sender,DoWorkEventArgs e)
{
e.Result = e.Argument;
for (int i = 0; i < fTable.Rows.Count; i++)
{
try
{
sqlCommand cmd = new sqlCommand("INSERT INTO TBL_CDR_ANALYZER (LNG_UPLOAD_ID,DAT_START,LNG_DURATION,INT_DIRECTION,INT_CALL_DATA_TYPE,\n" +
"TXT_TARGET_NUMBER,TXT_OTHER_PARTY_NUMBER,TXT_TARGET_IMSI,TXT_TARGET_IMEI,TXT_TARGET_CELL_ID,TXT_ROAMING_NETWORK_COMPANY_NAME) VALUES \n" +
"(@UPLOAD_ID,@START_DATE,@DURATION,@DIRECTION,@CALL_TYPE,@TARGET_NUMBER,@OTHER_PARTY_NUMBER,@IMSI,@IMEI,@CELL_ID,@ROAMING_NAME)",sqlCon);
cmd.Parameters.Add("@UPLOAD_ID",sqlDbType.Int).Value = 1;
cmd.Parameters.Add("@START_DATE",sqlDbType.DateTime).Value = fTable.Rows[i]["CallDate"];
cmd.Parameters.Add("@DURATION",sqlDbType.Int).Value = fTable.Rows[i]["CallDuration"];
cmd.Parameters.Add("@DIRECTION",sqlDbType.Int).Value = GetCallDirection(fTable.Rows[i]["CallDirection"].ToString());
cmd.Parameters.Add("@CALL_TYPE",sqlDbType.Int).Value = GetCallType(fTable.Rows[i]["CallType"].ToString());
cmd.Parameters.Add("@TARGET_NUMBER",sqlDbType.VarChar,25).Value = fTable.Rows[i]["TargetNo"];
cmd.Parameters.Add("@OTHER_PARTY_NUMBER",25).Value = fTable.Rows[i]["OtherPartyNo"];
cmd.Parameters.Add("@IMSI",50).Value = fTable.Rows[i]["IMSI"];
cmd.Parameters.Add("@IMEI",50).Value = fTable.Rows[i]["IMEI"];
cmd.Parameters.Add("@CELL_ID",50).Value = fTable.Rows[i]["CellID"];
cmd.Parameters.Add("@ROAMING_NAME",sqlDbType.NVarChar,255).Value = fTable.Rows[i]["RoamingCompany"];
sqlCon.Open();
cmd.ExecuteNonQuery();
sqlCon.Close();
}
catch (sqlException ex)
{
}
finally
{
sqlCon.Close();
}
bw_Convert.ReportProgress((100 * i) / fTable.Rows.Count);
**Label1.Text = i.ToString() + "Files Converted";** // getting error Here.
}
}
如何在这里更新Label1文本？
解决方法
这应该可以从后台线程更改GUI.
Label1.Invoke((MethodInvoker)delegate {
Label1.Text = i.ToString() + "Files Converted";});
