DataSource Controls :: Some Text Is Converted To Question Mark?
Jun 12, 2010
I have a problem with the text when I save them to sql server 2005.
At first, I post some news to web page. The text showed normal on home page, but after one day when I visit that web page again, I saws all text in the article part was converted to question mark. Ex: "Khó đánh giá theo thị trường" (vietnamese)-->"Khó d?nh giá theo th? tr?ng"
In the other part or the page, the text is still normal. I don't know why.
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Sep 29, 2010
Scenario:
I am creating a custom gridview control which has a custom CheckBoxTemplateField column (deriving from TemplateField class). This template field column has custom Checkboxheadertemplate (implementing ITemplate) and CheckboxItemTemplate (also implementing ITemplate). In InstantiateIn method of both templates (header as well as Item template), I am adding a checkbox control which has Autopostback = true.
My requirement is:
I want to mark all the values in the binding column of datasource if checkbox in headertemplate is checked. I dont want to mark only rows visible on grid. I WANT TO MARK ALL ROWS IN DATASOURCE. I want to do this in _CheckedChanged event of checkbox in header template.
Problem I am facing: When I check/uncheck the checkbox in header, it postbacks. so in OnCheckedChanged event, gridview's datasource is null. Secondly, in any event of gridview, I could access only those rows of datasource for which corresponding rows are visible in gridview through Gridviewrow.DataItem property. But I want to set it for all rows in datasource.
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Jan 8, 2010
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Jul 7, 2010
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Jul 8, 2010
Iam exporting dataset to excel , the numbers on the sheet shown as text when export it to excel. Here is the code:
public class Excel
{
const int rowLimit = 65000;
private static string getWorkbookTemplate()
{
StringBuilder sb = new StringBuilder(818);
sb.AppendFormat(@"<?xml version=""1.0""?>{0}", Environment.NewLine);
sb.AppendFormat(@"<?mso-application progid=""Excel.Sheet""?>{0}", Environment.NewLine);
sb.AppendFormat(@"<Workbook xmlns=""urn:schemas-microsoft-com:office:spreadsheet""{0}", Environment.NewLine);
sb.AppendFormat(@" xmlns:o=""urn:schemas-microsoft-com:office:office""{0}", Environment.NewLine);
sb.AppendFormat(@" xmlns:x=""urn:schemas-microsoft-com:office:excel""{0}", Environment.NewLine);
sb.AppendFormat(@" xmlns:ss=""urn:schemas-microsoft-com:office:spreadsheet""{0}", Environment.NewLine);
sb.AppendFormat(@" xmlns:html=""[URL]
sb.AppendFormat(@" <Styles>{0}", Environment.NewLine);
sb.AppendFormat(@" <Style ss:ID=""Default"" ss:Name=""Normal"">{0}", Environment.NewLine);
sb.AppendFormat(@" <Alignment ss:Vertical=""Bottom""/>{0}", Environment.NewLine);
sb.AppendFormat(@" <Borders/>{0}", Environment.NewLine);
sb.AppendFormat(@" <Font ss:FontName=""Verdana"" x:Family=""Swiss"" ss:Size=""12"" ss:Color=""#0000A0""/>{0}", Environment.NewLine);
sb.AppendFormat(@" <Interior/>{0}", Environment.NewLine);
sb.AppendFormat(@" <NumberFormat/>{0}", Environment.NewLine);
sb.AppendFormat(@" <Protection/>{0}", Environment.NewLine);
sb.AppendFormat(@" </Style>{0}", Environment.NewLine);
sb.AppendFormat(@" <Style ss:ID=""s62"">{0}", Environment.NewLine);
sb.AppendFormat(@" <Font ss:FontName=""Calibri"" x:Family=""Swiss"" ss:Size=""11"" ss:Color=""#000000""{0}", Environment.NewLine);
sb.AppendFormat(@" ss:Bold=""1""/>{0}", Environment.NewLine);
sb.AppendFormat(@" </Style>{0}", Environment.NewLine);
sb.AppendFormat(@" <Style ss:ID=""s63"">{0}", Environment.NewLine);
sb.AppendFormat(@" <NumberFormat ss:Format=""Short Date""/>{0}", Environment.NewLine);
sb.AppendFormat(@" </Style>{0}", Environment.NewLine);
sb.AppendFormat(@" </Styles>{0}", Environment.NewLine);
sb.Append(@"{0}
</Workbook>");
return sb.ToString();
}
private static string replaceXmlChar(string input)
{
input = input.Replace("&", "&");
input = input.Replace("<", "<");
input = input.Replace(">", ">");
input = input.Replace(""", """);
input = input.Replace("'", "'");
return input;
}
private static string getCell(Type type, object cellData)
{
Object data = (cellData is DBNull) ? "" : cellData;
if (type.Name.Contains("Int") || type.Name.Contains("Double") || type.Name.Contains("Decimal")) return string.Format("<Cell><Data ss:Type="Number">{0}</Data></Cell>", data);
if (type.Name.Contains("Date") && data.ToString() != string.Empty)
{
return string.Format("<Cell ss:StyleID="s63"><Data ss:Type="DateTime">{0}</Data></Cell>", Convert.ToDateTime(data).ToString("yyyy-MM-dd"));
}
return string.Format("<Cell><Data ss:Type="String">{0}</Data></Cell>", replaceXmlChar(data.ToString()));
}
private static string getWorksheets(DataSet source)
{
StringWriter sw = new StringWriter();
if (source == null || source.Tables.Count == 0)
{
sw.Write("<Worksheet ss:Name="Sheet1">
<Table>
<Row><Cell><Data ss:Type="String"></Data></Cell></Row>
</Table>
</Worksheet>");
return sw.ToString();
}
foreach (DataTable dt in source.Tables)
{
if (dt.Rows.Count == 0)
sw.Write("<Worksheet ss:Name="" + replaceXmlChar(dt.TableName) + "">
<Table>
<Row><Cell ss:StyleID="s62"><Data ss:Type="String"></Data></Cell></Row>
</Table>
</Worksheet>");
else
{
//write each row data
int sheetCount = 0;
for (int i = 0; i < dt.Rows.Count; i++)
{
if ((i % rowLimit) == 0)
{
//add close tags for previous sheet of the same data table
if ((i / rowLimit) > sheetCount)
{
sw.Write("
</Table>
</Worksheet>");
sheetCount = (i / rowLimit);
}
sw.Write("
<Worksheet ss:Name="" + replaceXmlChar(dt.TableName) +
(((i / rowLimit) == 0) ? "" : Convert.ToString(i / rowLimit)) + "">
<Table>");
//write column name row
sw.Write("
<Row>");
foreach (DataColumn dc in dt.Columns)
sw.Write(string.Format("<Cell ss:StyleID="s62"><Data ss:Type="String">{0}</Data></Cell>", replaceXmlChar(dc.ColumnName)));
sw.Write("</Row>");
}
sw.Write("
<Row>");
foreach (DataColumn dc in dt.Columns)
sw.Write(getCell(dc.DataType, dt.Rows[i][dc.ColumnName]));
sw.Write("</Row>");
}
sw.Write("
</Table>
</Worksheet>");
}
}
return sw.ToString();
}
public static string GetExcelXml(DataTable dtInput, string filename)
{
string excelTemplate = getWorkbookTemplate();
DataSet ds = new DataSet();
ds.Tables.Add(dtInput.Copy());
string worksheets = getWorksheets(ds);
string excelXml = string.Format(excelTemplate, worksheets);
return excelXml;
}
public static string GetExcelXml(DataSet dsInput, string filename)
{
string excelTemplate = getWorkbookTemplate();
string worksheets = getWorksheets(dsInput);
string excelXml = string.Format(excelTemplate, worksheets);
return excelXml;
}
public static void ToExcel(DataSet dsInput, string filename, HttpResponse response)
{
string excelXml = GetExcelXml(dsInput, filename);
response.Clear();
response.AppendHeader("Content-Type", "application/vnd.ms-excel");
response.AppendHeader("Content-disposition", "attachment; filename=" + filename);
response.Write(excelXml);
response.Flush();
response.End();
}
public static void ToExcel(DataTable dtInput, string filename, HttpResponse response)
{
DataSet ds = new DataSet();
ds.Tables.Add(dtInput.Copy());
ToExcel(ds, filename, response);
}
}
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Mar 12, 2010
Im using LINQ2SQL and i have an object called Article. Its has 2 properties FinishText and SwedishText. The idea is to let the user choose language. Swedish is default.
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[code]....
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[Code]....
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[Code]....
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Oct 8, 2010
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{
protected void Page_Load(object sender, EventArgs e)
{
Title = "View Marks Approval Requests";
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[Code] ....
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[Code]....
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I want that when i will check the checkbox of those students who are present...dat checked students and name should be get entered into another table in database where there wil be present written in front of checked students and absent written in front of unchecked students.....
I tried a lot but I am not getting it.....
From the above table(student info) i wil fetch data in gridview and will mark attendance in the gridview
In the above sample gridview in the student name column the name of the students is fetched from student info table, when I will check the checkbox and select the date and click on the button the students who are checked will be stored with a status present and those who are unchecked are stored as absent in another table
The following is the table(example) is where the data is to be stored in the same manner. It means that total two tables are there in the database.
From 1 table i fetch data of students info in gridview and in another table i wil save the attendance marked in gridview....
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I have MS SQL Server 2008 and I would like to store formatted text from a rich textbox. Formatted in the sense that I want to store a multiple choice question's formatting, an example would be like this:What is 2 + 2?
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[code]....
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[Code]....
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