I have been facing a problam with replace null datetime Field with String.
Like
My DB filed entrydate not mendetory DateTime is dataType.
Its return Entry date or Null.
When designing Crystal report Enrry date display but when it return null its simply display blankspace.
I want like
Enrry date
-----------
07-03-2011
Unavl
12-03-2011
13-03-2011
If I have JSON like this and pass it to the engine I am using to create a PDF file, the word "null" appears on the PDF. This isn't really my example, but I googled "json replace null empty string" and this was a hit, which is a good representation of my data, also:
{
"relationship": {
"type": "relationship",
"id": null,
"followed_id": null
}
}
We use a rendering engine that creates a PDF from a fixed template and variable data in the form of a json string. But our customers don't want to read that the id is "null", they want to read that the id is blank. In my C# program, the json is just a string, so I can easily do something like this:
jsonString = jsonString.Replace("null,", ",");but the issue is I can't replace null-comma with a comma, because then it's invalid json.
how to I make the rendering engine *and* my customer both happy?
I am very new to ASP .NET and am getting above error when trying to insert a new record into a SQL database. I have turned on Option Explicit On so the default date of 01/01/1900 does not get assigned to this field automatically. Since most of the people in the database will not have a date of death, I need to have "blank" deathDate. When I run the stored procedure within SQL and choose pass null value, the Insert Procedure works fine. When I attach to Web Form, however, I get String was not recognized as a valid DateTime error. How can I set it so Null values are accepted into this date field.
View 1 Repliesi am displaying some news from rss feeds in the page. But i am stuck up in the date time conversion. I got th published datetime as pdt formated string. How can i convert to my local time. Coversion from the pdt string tot DateTime is error..
[Code]....
This second line is error and i need the result in the specified format or same format as in the published date but in local time ie IST (India Standard Time)
I have a problem:
I've created usual Controller and View(Edit view) for editing my Entity (EntityFramework)
Here is view example:
<div class="editor-field">
@Html.EditorFor(model => model.BirthDate)
@Html.ValidationMessageFor(model => model.BirthDate)
</div>
BirthDate is Nullable<DateTime>
but during loading my View I get this exception
The model item passed into the dictionary is null, but this dictionary requires a non-null model item of type 'System.DateTime'.
That's because of BirthDate is null in database but it is nullable and I expect that it just leaves the filed empty.
And I have Shared EditorTemplate:
@model System.Nullable<System.DateTime>
@if (Model.HasValue)
I need to replace <span> entries in a string to legacy html code because it's going to be used in a report for Crystal Reports. <b> works with Crystal, but the<span>'s do not.
Here's the string which I'm trying to replace: <span style="font-weight: bold">%THIS CAN BE ANY TEXT%</span>. I want to replace it to
<b>%THIS CAN BE ANY TEXT%</b>.
[Code]....
I have setup my business object to have a create_date and edit_date members both datetime datatypes. My company want to display the create_date and edit_date fields in a gridview for each transaction. The problem i have is that after insterting a record it will have a valid create_date but no edit_date and when displayed in the gridview it defaults to datetime.minvalue (My default). How on earth do i show an empty field in my gridview for a null datetime field in the database?
I am using similar architecture to the Imar Spaanjaars example of a tiered solution. With a few small tweeks it has worked well for me for ages. I am passing a List<Database> to my object datasource which connects to my gridview.
obj.From = DateTime.Parse(txtFrom.Text, ci);
And it will give error String was not recognized as a valid DateTime. How it can be solved..
I tried to convert the (null) values with 0 (zeros) output in dynamic PIVOT function but have no sucess. Itried with below code but getting below error,
'SNULL' is not a recognized built-in function name.
DECLARE @columns NVARCHAR(MAX)
DECLARE @sql NVARCHAR(MAX);
SET @columns = N'';
SELECT @Scolumns = ISNULL(@Scolumns + ',','')+ 'ISNULL(' + QUOTENAME(Name) + ', 0) AS '+ QUOTENAME(Name)--HERE AM GETTING ABOVE ERROR
FROM (
SELECT Name FROM #Temp
[CODE]...
i have a grid view that displays a load of figures, and as there is a lot of zero's in these tables i wondered if it would be possible to just display nothing were there is a "0" ... just to make it look cleaner?
View 13 RepliesI am trying to replace all null value with space for all columns in a table.
(note: just we have to pass parameter table name "XYZ" result will come aotumaticly, we dont need to bother about column name)
i have done it through C# application. but love to do it through Sqlserver only like using storeprocedure, function.
my C# code is like that
[code]....
I want to retrieve a record which stored in a SQL table as datetime type. How to detect it to see if it is not null value before assign it to a text box? Because in SQL, it displays as '1900-01-01 00:00:00.000'
For example, I want to code something like below:
dim dst as new dataset
if dst.tables(0).rows(0)("OrderDate") is not null then
txtOrderDate.text=dst.tables(0).rows(0)("OrderDate")
End if
I have 2 textboxes for BEGINNING DATE and END DATE. First I compare the dates so that the END DATE is bigger than the BEGINNING DATE. This is OK with the validators.
MY PROBLEM IS: If the END DATE´S TEXTBOX is empty, then it should insert into the SQL DB, a null value. The field has a DATETIME type.
Since my INSERT Query requires a parameter when i call the ADD METHOD, it returns that the END DATE parameter is required.
I have a string variable contain text that I would like to search for "Keyword" and replace it with new value.
For example:
Dim strValue = " col1 = "John" and col4 = "smith" or col7 <> "closed" or col9 > 1 and col5 = "passed" "
After the replace the strValue should be :
strValue = " col1 = "John" and ( col4 = "smith" or col7 <> "closed" or col9 > 1 ) and col5 = "passed" "
i have a string and want to remove text up to the last forward slash, e.g
/images/UserThumbnails/22.jpg
Should now be
22.jpg
How do i go about doing this?
I have a string with special characters insert in different places. For example:
string myString = "This is a textbox: ##";
I would like to replace the ## with a control (namely, a textbox).
The Replace method only allows the string to be replaced with another string or character (understandably). But what would be the best way to dynamically replace the ## with a control in its position?
I was thinking maybe I could replace it with HTML markup which would be executed, but not quite sure how that would be achieved.
EDIT: To clarify some details. The strings are being retrieved from a database, so I can't use the PlaceHolder control. The user selects a string from a drop-down list. The value of the item is the string with special characters. When the postback occurs from the item selection, I would like to display the string on the site, but replace the special characters with a fully working control (in this case, a textbox)
// Build email link
confirmLink = Master.siteDomain + "/newsLetter.aspx?action=confirm&e=" + emailAddress + "&code=" + verCode;
using (SqlCommand cmd = new SqlCommand("SELECT newRegEmailBody, newRegEmailSubj FROM tblSiteSettings WHERE (isActive = 1)", Master.cn))
{
SqlDataReader rdr = cmd.ExecuteReader();
if (rdr.Read())
{
emailBody = rdr[0].ToString();
emailSubj = rdr[1].ToString();
}
rdr.Close();
}
emailBody.Replace("[CONFIRMATION_LINK]", confirmLink);
emailer.sendEmail(emailAddress, Master.noReplyEmail, emailSubj, emailBody);
It all seems to work fine, except the body is still showing up with [CONFIRMATION_LINK] in the text,
how to change
XXX@YYY.ZZZ into XXX_YYY_ZZZ
One way i know is to use the string.replace(char, char) method,
but i want to replace "@" & "." The above method replaces just one char.
one more case is what if i have XX.X@YYY.ZZZ...
i still want the output to look like XX.X_YYY_ZZZ
Passing a null or nothing value to a datatime datatype database field (Access)
I've been all over the internet looking at this and I have tried dozens of methods without success.
I've read a few forums where, some say you can not assign a null value or a nothing value to a datetime datatype field. Then I see others where they say...'I got it to work'.
If this is true (that you can not pass a null value), how come I can create a record in the Access table and not assign a value to this date field? (The field is defined as not required).
Yet, once a value is in the field, I can not update that field back to a null or a nothing value.
So I'm hoping someone has the definitive answer to this.
I am using VB.Net Vs 2003 and updating an Access data base.
I have an update statement (see below) that uses parameters for updating.
what will work, so that I can put back the null or nothing value?
Or if it really can not be done, I guess I'll have to take that as truth.
[Code]....
I get a recordset returned from DB and try to load it. However sometimes field "LastRun" may be empty (NULL). when i have this it compiles fine but errors out when value is null m_LastRun = Convert.ToDateTime(r["LastRun"]); when I take out Convert.ToDateTime it doesn't even compile.
View 3 RepliesI have a linq to sql entity class in which I declared some DateTime fileds like this:
[Code]....
And this is how I fetch data form repository:
[Code]....
All non DateTime fields are filled properly but all datetimes are null.[Column(DbType = "smalldatetime")]
I have a calendar control that sits inside a gridview and when i insert into the sql db it inserts the defaults of 111900, how can i insert Null instead of the default date.
Protected Sub lnkSubmitDental_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles lnkSubmitDental.Click
Dim userlogon As String = Split(Current.User.Identity.Name, "")(1)
[code]...
I am getting taggings like the following in a string
<color> vocation </color>
<color> elation </color>
<color> sage </color>
you can notice that each tagging differs only in the wordings
vocation
elation
sage
But i want to write a code some thing like this
Regex.Replace(userAx, "<color> vocation </color>",
"<color> </color>"
so that the resulting output does not contain words at the centre.In the above code instead of giving the word vocation exclusively, i have to mention some pattern, so that it will replace all the words instead of doing it for first sentence only.How to modify my code?
I am using a chat script I found for free online.
It allows a profanity filter by using string replace:
ex: ChatText.Replace("hell", "!@#$")
is there a way to do a wildcard replace? It doesn't catch the word "HELL" or "Hell" for example.
txtPhoneWork.Text.Replace("-","");
txtPhoneWork.Text.Replace("_", "");
txtMobile.Text.Replace("-", "");
txtMobile.Text.Replace("_", "");
txtPhoneOther.Text.Replace("-", "");
txtPhoneOther.Text.Replace("_", "");
location.ContactWork = txtPhoneWork.Text.Trim();
location.ContactMobile = txtMobile.Text.Trim();
location.ContactOther = txtPhoneOther.Text.Trim();
but it is not replacing and is there any method so that both - and _ can be replaced in single function.