[英]String or binary data would be truncated.?
I'm building an input form in a C# web app. 我正在使用C#Web应用程序构建输入表单。 I can submit it just fine but I get the
System.Data.SqlClient.SqlException (0x80131904): String or binary data would be truncated
error. 我可以提交它,但我得到
System.Data.SqlClient.SqlException (0x80131904): String or binary data would be truncated
错误。 I know its a length issue but Ive double checked everything but just cant seem to figure this out here. 我知道这是一个长度问题,但我已经仔细检查了一切,但似乎无法在这里解决这个问题。
{
// Open Connection
thisConnection.Open();
// Create INSERT statement with named parameters
nonqueryCommand.CommandText = "INSERT INTO InventoryInput (Date, Item, Qty, WStatus) VALUES (@Date, @Qty, @Item, @WStatus)";
// Add Parameters to Command Parameters collection
nonqueryCommand.Parameters.Add("@Date", System.Data.SqlDbType.DateTime);
nonqueryCommand.Parameters.Add("@Item", System.Data.SqlDbType.VarChar, 255);
nonqueryCommand.Parameters.Add("@QTY", System.Data.SqlDbType.NChar, 10);
nonqueryCommand.Parameters.Add("@WStatus", System.Data.SqlDbType.VarChar, 50);
nonqueryCommand.Parameters["@Date"].Value = TextBox1.Text;
nonqueryCommand.Parameters["@Item"].Value = DropDownList1.Text;
nonqueryCommand.Parameters["@QTY"].Value = TextBox2.Text;
nonqueryCommand.Parameters["@WStatus"].Value = DropDownList3.Text;
nonqueryCommand.ExecuteNonQuery();
}
You've mixed up two of your columns: 你混淆了两个列:
(Date, Item, Qty, WStatus) VALUES
(@Date, @Qty, @Item, @WStatus)
You're trying to insert your @Qty
into the Item
column (okay), and @Item
into the Qty
column (probably wrong). 你试图将你的
@Qty
插入Item
列(好吧),并将@Item
插入Qty
列(可能是错误的)。
I also agree with comments that some of the data types still look suspect - Eg a non-numeric quantity. 我也同意一些数据类型仍然可疑的评论 - 例如非数字数量。
Make sure your inputs aren't too long with Substring()
: 使用
Substring()
确保输入不会太长:
nonqueryCommand.Parameters["@Date"].Value = TextBox1.Text;
nonqueryCommand.Parameters["@Item"].Value = DropDownList1.Text.Substring(0, 255);
nonqueryCommand.Parameters["@QTY"].Value = TextBox2.Text.Substring(0, 10);
nonqueryCommand.Parameters["@WStatus"].Value = DropDownList3.Text.Substring(0, 50);
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